W załączniku mówiąc dosłownie ' Q7T4-EP71G LCD Monitor Service Guide '
Q7T4-FP71G LCD Monitor Service Guide
Alignment Procedure
1. Alignment procedure (for function adjustment)
A. Preparation:
1.
Setup input timing ICL-605( 1280x1024@75Hz ), 32-Grays pattern.
2.
Setup unit and keep it warm up at least 30 minutes.
B. Timing adjustment:
1. Enter factory setting area (press "ENTER", "EXIT" and then press "SOFTPOWER").
2. Check the settings to following values:
Contrast = 50
Brightness = 90
OSD time = 20
Color = Normal
Language = English
Then, turn off the monitor power.
3. Turn on power enter user area.
C. Color balance adjustment:
1. Enter factory setting area (press "ENTER", "I-Key" and then press "SOFTPOWER").
2. Setup input timing ICL-605(1280x1024@75Hz), 32-Gray pattern (pattern 48) .
3. Press "I-KEY", and than OSD will show "White Balance" item and than press "ENTER" button
to do auto color.
1
Confidential
Q7T4-FP71G LCD Monitor Service Guide
Alignment Procedure
D. Color adjustment:
1. Setup input timing ICL-605, white pattern .
2. Confirm auto color adjustment had already done.
3. Measure color temperature by Minolta CA-110 (or equivalent equipment).
4. Check the color temperature Bluish, Reddish & Normal. The color temperature specification
as follows:
White Balance
(Bluish, 9300K set on OSD)
X+-
0.283+(-) 0.03
Y+-
0.297+(-) 0.03
White Balance
(Reddish, 5800K set on OSD)
X+-
0. 326+(-) 0.03
Y+-
0. 342+(-) 0.03
White Balance
(sRGB, 6500K set on OSD)
X+-
0.313+(-) 0.03
Y+-
0. 329 +(-) 0.03
2
Confidential
Q7T4-FP71G LCD Monitor Service Guide
Alignment Procedure
5. Setup input timing , 32 -Gray pattern.
To check if there are any abnormal display problems of preset timing modes .
No.
1
2
3
4
5
6
7
8
9
10
Check the following preset timings with General pattern:
Mode
H
720×400 @ 70Hz
31.468
640×480 @ 60Hz
31.469
640×480 @ 75Hz
37.500
800×600 @ 60Hz
37.879
800×600 @ 75Hz
46.875
1024×768 @ 60Hz
48.363
1024×768 @ 75Hz
60.023
1152x864 @ 75Hz
67.500
1280×1024 @ 60Hz
63.981
1280×1024 @ 75Hz
79.976
V
70.8
59.940
75.000
60.317
75.000
60.004
75.029
75.000
60.020
75.025
6. Checking if the picture is no good, reject this monitor.
7. To check the power consumption by disabling "burn-in mode" setting
8. To clear user data and program complete DDC data to monitor by IIC bus communication.
E. Writing EDID file:
1. Setup a PC with DDC card.
2. Connect PC to monitor with a D-sub signal cable.
3. Please refer to the C212 for the correct EDID file.
4. Runs the writing program to write the EDID file into EEPROM .
5. Read EEPROM data and confirm it to match with the C212 document definition.
F. Command definition :
PC Host will send 0x7C IIC slave address and then following 4 bytes command
I2C Send Command
Byte1 Byte2 Byte3 Byte4 OK N.A. Remark
Write Contrast to MCU RAM
Write Brightness to MCU RAM
Write Red Gain to MCU RAM
Write Green Gain to MCU RAM
Write Blue Gain to MCU RAM
Read Contrast from MCU RAM
Read Brightness from MCU RAM
Read Red Gain from MCU RAM by color index
Read Green Gain from MCU RAM by color
index
Read Blue Gain from MCU RAM by color index
Write C1 (Bluish) R-Gain Data to EEPROM
Write C1 (Bluish) G-Gain Data to EEPROM
Write C1 (Bluish) B-Gain Data to EEPROM
Write C2 (sRGB) R-Gain Data to EEPROM
Write C2 (sRGB) G-Gain Data to EEPROM
Write C2 (sRGB) B-Gain Data to EEPROM
CA
CA
CA
CA
CA
C3
C3
C3
55
56
57
58
59
55
56
57
Data
Data
Data
Data
Data
XX
XX
XX
cksum
cksum
cksum
cksum
cksum
cksum
cksum
cksum
?
?
?
?
?
?
?
?
C3
C3
AA
AA
AA
AA
AA
AA
58
59
3C
3D
3E
4C
4D
4E
XX
XX
Data
Data
Data
Data
Data
Data
cksum
cksum
cksum
cksum
cksum
cksum
cksum
cksum
?
?
?
?
?
?
?
?
Write data to MCU RAM and
update the related register to
refresh the screen immediately.
Don't store data to EEPROM.
Base on current color index to
read back the right gain value.
3
Confidential
Q7T4-FP71G LCD Monitor Service Guide
Alignment Procedure
Write C3 (Reddish) R-Gain Data to EEPROM
Write C3 (Reddish) G-Gain Data to EEPROM
Write C3 (Reddish) B-Gain Data to EEPROM
Write User R-Gain Data to EEPROM
Write User G-Gain Data to EEPROM
Write User B-Gain Data to EEPROM
Write Cx R-Gain Data to EEPROM
Write Cx G-Gain Data to EEPROM
Write Cx B-Gain Data to EEPROM
Write Contrast to EEPROM
Write Brightness to EEPROM
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
5C
5D
5E
6C
6D
6E
7C
7D
7E
92
93
Data
Data
Data
Data
Data
Data
Data
Data
Data
Data
Data
cksum
cksum
cksum
cksum
cksum
cksum
cksum
cksum
cksum
cksum
cksum
?
?
?
?
?
?
?
?
?
Reserved for some model have
extra color temperature
?
?
1=C1/9300/Bluish,
2=C2/6500/sRGB/,
3=C3/5800/Reddish,
Write C/T index to EEPROM
Write OSD-Hpos to EEPROM
Write OSD-Vpos to EEPROM
AA
AA
AA
94
95
96
4=User, 5=Cx
0~4 cksum ?
Data cksum ?
Data cksum ?
0=DE, 1=EN, 2=ES, 3=FR,
4=IT, 5=JA, 6=??, 7=??
Write Language to EEPROM
Write EEPROM OSD Timer
Write EEPROM Volume
AA
AA
AA
97
98
99
0~7 cksum ?
Data cksum ?
Data cksum ?
Write EEPROM Gamma index
Write OSD Transparency to EEPROM
Write OSD Rotation to EEPROM
Read C1 (Bluish) R-Gain data from EEPROM
Read C1 (Bluish) G-Gain data from EEPROM
Read C1 (Bluish) B-Gain data from EEPROM
Read C2 (sRGB) R-Gain data from EEPROM
Read C2 (sRGB) G-Gain data from EEPROM
Read C2 (sRGB) B-Gain data from EEPROM
Read C3 (Reddish) R-Gain data from EEPROM
Read C3 (Reddish) G-Gain data from EEPROM
Read C3 (Reddish) B-Gain data from EEPROM
Read User R-Gain data from EEPROM
Read User G-Gain data from EEPROM
Read User B-Gain data from EEPROM
Read Cx R-Gain data from EEPROM
Read Cx G-Gain data from EEPROM
Read Cx B-Gain data from EEPROM
Read Contrast from EEPROM
Read Brightness from EEPROM
AA
AA
AA
A3
A3
A3
A3
A3
A3
A3
A3
A3
A3
A3
A3
A3
A3
A3
A3
A3
9A
9E
9F
3C
3D
3E
4C
4D
4E
5C
5D
5E
6C
6D
6E
7C
7D
7E
92
93
Data
Data
Data
XX
XX
XX
XX
XX
XX
XX
XX
XX
XX
XX
XX
XX
XX
XX
XX
XX
cksum
cksum
cksum
cksum
cksum
cksum
cksum
cksum
cksum
cksum
cksum
cksum
cksum
cksum
cksum
cksum
cksum
cksum
cksum
cksum
(Also Update MCU RAM)
?
?
?
For model with Gamma curve
selection function
?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
Reserved for some model have
extra color temperature
?
?
4
Confidential
Q7T4-FP71G LCD Monitor Service Guide
Alignment Procedure
1=C1/9300/Bluish,
2=C2/6500/sRGB/,
3=C3/5800/Reddish,
Read C/T index from EEPROM
Read OSD-Hpos EEPROM
Read OSD-Vpos from EEPROM
A3
A3
A3
94
95
96
XX cksum ?
XX cksum ?
XX cksum ?
Read Language from EEPROM
Read OSD Timer from EEPROM
Read Volume from EEPROM
A3
A3
A3
97
98
99
A3
A3
A3
CC
CC
CC
CC
CC
CD
CD
CE
9A
9E
9F
01
02
03
04
05
01
02
01
XX
XX
XX
XX
XX
XX
XX
XX
XX
XX
XX
cksum
cksum
cksum
cksum
cksum
cksum
cksum
cksum
cksum
cksum
cksum
Off burn in mode
Monitor is forced power saving
Monitor wake up from power saving
User mode to factory mode
Auto Color (Offset1, Offset2, Gain)
CE
CF
CF
1A
1B
XX*
01
XX*
5A
5A
XX
XX
XX
XX
XX
cksum ?
cksum
cksum
cksum ?
cksum
Copy EDID Serial number to EEPROM
Factory mode to User mode
Clear user mode and factory recall
Write EDID data to MCU DDC RAM
Copy DDC RAM data to EEPROM
Drive WP pin to low to enable write DDC IC
Drive WP pin to high to disenable write function
1C
1E
1F
55
BB
55
BB
5A
5A
5A
NA
NA
NA
NA
XX cksum
XX cksum ?
XX cksum ?
NA
NA ?
NA
NA ?
NA
NA
NA
NA
0=DE, 1=EN, 2=ES, 3=FR,
4=IT, 5=JA, 6=??, 7=??
XX cksum ?
XX cksum ?
XX cksum ?
Read Gamma index from EEPROM
Read OSD Transparency from EEPROM
Read OSD Rotation from EEPROM
Change Color Temp. to C1/9300K/Bluish
Change Color Temp. to C2/6500K/sRGB
Change Color Temp. to C3/5800K/Reddish
Change Color Temp. to User
Change Color Temp. to Cx
Change Input Source to D-Sub
Change Input Source to DVI
On burn in mode
4=User, 5=Cx
?
?
?
?
?
?
?
For model with Gamma curve
selection function
Change C/T immediately. And
store C/T index to EEPROM.
?
?
?
?
Reserved
Store data to EEPROM
XX* = Non "1" value
Store data to EEPROM
?
?
XX* = Non "1" value
?
?
For specified "Industry
Customer" model.
?
?
Store data to EEPROM
For MTV312 MCU type
For MTV312 MCU type
For stand alone DDC IC
For stand alone DDC IC
EEPROM Bank R/W (For Debug using only, not for Production Line Write EEPROM directly)
Read EEPROM Bank 0
Read EEPROM Bank 1
Read EEPROM Bank 2
Read EEPROM Bank 3
Write EEPROM Bank 0
Write EEPROM Bank 1
Write EEPROM Bank 2
Write EEPROM Bank 3
B0
B1
B2
B3
B8
B9
BA
BB
Address
Address
Address
Address
Address
Address
Address
Address
XX
XX
XX
XX
Data
Data
Data
Data
cksum
cksum
cksum
cksum
cksum
cksum
cksum
cksum
?
?
?
?
(For 24C08 type)
(For 24C08 type)
?
?
(For 24C08 type)
(For 24C08 type)
?
?
5
Confidential
Q7T4-FP71G LCD Monitor Service Guide
Alignment Procedure
Note A: Byte4 (cksum) = Byte1 + Byte2 + Byte3
Note B: Data = The value write to MCU or EEPROM
Note C: XX = don't care, any value ( & lt; =0xFF).
When PC Host sends 0x7D command to MCU, MCU must return as following (2 bytes)
Return Code
Checksum error code
Normal return code
If normal return code is exact FCh
R-Byte1
R-Byte2
FC
the above Byte3 (/data)
FC
AA
FC
CF
6
Confidential
Q7T4-FP71G LCD Monitor Service Guide
Alignment Procedure
4. Wire Dressing and assembling concern
Prepare 1 panel
Assembly panel and main BKT
7
Confidential
Q7T4-FP71G LCD Monitor Service Guide
Alignment Procedure
Add 4 screw between panel and main BKT
8
Confidential
Q7T4-FP71G LCD Monitor Service Guide
Alignment Procedure
Add FFC
9
Confidential
Q7T4-FP71G LCD Monitor Service Guide
Alignment Procedure
Add Tape
10
Confidential
Q7T4-FP71G LCD Monitor Service Guide
Alignment Procedure
Assembly IF board and Power Board
11
Confidential
Q7T4-FP71G LCD Monitor Service Guide
Alignment Procedure
Assembly PCB module and main BKT
12
Confidential
Q7T4-FP71G LCD Monitor Service Guide
Alignment Procedure
Assembly IF board and FFC
13
Confidential
Q7T4-FP71G LCD Monitor Service Guide
Alignment Procedure
Add one tape
14
Confidential
Q7T4-FP71G LCD Monitor Service Guide
Alignment Procedure
Assembly lamp wire and Power Board
15
Confidential
Q7T4-FP71G LCD Monitor Service Guide
Alignment Procedure
Add one screw
16
Confidential
Q7T4-FP71G LCD Monitor Service Guide
Alignment Procedure
Add 5 screw
17
Confidential
Q7T4-FP71G LCD Monitor Service Guide
Alignment Procedure
Assembly main shielding and main BKT
18
Confidential
Q7T4-FP71G LCD Monitor Service Guide
Alignment Procedure
Add 2 screw
19
Confidential
Q7T4-FP71G LCD Monitor Service Guide
Alignment Procedure
Assembly control board wire and IF board
20
Confidential
Q7T4-FP71G LCD Monitor Service Guide
Alignment Procedure
21
Confidential
Q7T4-FP71G LCD Monitor Service Guide
Alignment Procedure
Add one tape
22
Confidential
Q7T4-FP71G LCD Monitor Service Guide
Alignment Procedure
Assembly Bezel and Rear Cover
23
Confidential
Q7T4-FP71G LCD Monitor Service Guide
Alignment Procedure
Add 4 screw
24
Confidential
Q7T4-FP71G LCD Monitor Service Guide
Alignment Procedure
Add 1 screw
25
Confidential
Q7T4-FP71G LCD Monitor Service Guide
Alignment Procedure
Assembly Base and Rear cover
26
Confidential
Q7T4-FP71G LCD Monitor Service Guide
Alignment Procedure
Finished
27
Confidential
Q7T4-FP71G LCD Monitor Service Guide
Alignment Procedure
28
Confidential
Q7T4-FP71G LCD Monitor Service Guide
Alignment Procedure
29
Confidential
Q7T4-FP71G LCD Monitor Service Guide
Circuit Operation Theory
I. Introduction:
The Q7T4 is a 17" SXGA (1280x1024) , 16.2M colors(R, G, B 6-bit data+FRC data) TFT
LCD monitor. It's an analog only interface LCD monitor with a 15 pins D-sub signal cable. it's
compliant with VESA specification to offer a smart power management and power saving function. It
also offers OSD menu for users to control the adjustable items and get some information about this
monitor, and the best function is to offer users an easy method to set all adjustable items well just by
pressing one key, we called it "Auto key" which can auto adjusting all controlled items. Q7T4 also
offer DDC2 function to meet VESA standard.
II. Block diagram
The Q7T4 consists of a LCD module with 4 lamps, an power board, a control board ,and a
interface BD. The block diagram is shown as below.
LCD module with 4 lamps (backlight)
Inverter
Interface board
Power
Control board
D-Sub
AC power in
III.
Circuit operation theory:
A-1.) Interface board diagram:
1
Confidential
Q7T4-FP71G LCD Monitor Service Guide
Circuit Operation Theory
MTV312M
64(AJ)
Clock
Generator
XGA
D-SUB
140MHz
ADC
1280×1024
LCM
RTD 2023
IIC
Keypad
(a) Circuit operation theory:
A basic operation theory for the interface board is to convert input signal into digital RGB .
Analog RGB signal is converted to digital signal through ADC. The microprocessor RTD2023
receives video data and optimizes the image automatically. It also supports 16 color from a 64k
palette bitmap OSD, and keypad controlling. The output data are sent to LCD module.
(b) IC introduction:
1.) DDC (Display Data Channel) function: We use DDC IC to support DDC/2B function. DDC
data is stored in 24C04(EEPROM). Those data related to LCD monitor specification. PC
can read them by "SDA" and "SCL" serial communication for I?C communication for
DDC2B.
2.) RTD2023 IC: There are triple ADC, LVDS transmitter ,Scaling, and OSD functions in the
RTD2023 IC. Scaling IC is revolutionary scaling engine, capable of expanding any source
resolution to a highly uniform and sharp image, combined with the critically proven
integrated 8 bit triple-ADC and patented Rapid-lock digital clock recovery system. It also
2
Confidential
Q7T4-FP71G LCD Monitor Service Guide
Circuit Operation Theory
support detect mode and DPMS control.
3.) MTV312M64: To stored the source code which is accessed by MCU to run program.
4.) EEPROM: We use 24C04 to store all the adjustable data and user settings.And use 24C02 to
store DVI EDID data.
A-2.) Control board introduction:
There are 6 keys for user's control which includes "Power", "Enter", "Up/Plus",
"Down/Minus" , "Exit", and "iKey" . The following descriptions are the introduction of these keys.
(1) Power key: to turn/off power of monitor
(2) "Enter" key: to enter sub-menus or select items.
(3) "Up/Plus key: to select previous and to increase adjustment
(4) "Down/Minus" key: to select next and to decrease adjustment
(5) "Exit" key: to back to previous menu, or leave OSD (auto save)
(6) "iKey": to perform auto adjustment
(7) LED: It indicates the DPMS status of this LCD monitor; green light means DPMS on (Normal
operating condition). Amber light means DPMS off (Powersaving).
A-3.) Power board diagram:
EMI Filter
Rectifier and
Isolation power
filter
Inverter circuit
transformer
PWM controller
Switching element
Rectifier and filter
Rectifier and filter
LDO regulator
Feedback Isolation
Fig.1
3
Confidential
Q7T4-FP71G LCD Monitor Service Guide
Circuit Operation Theory
#1 EMI Filter
This circuit (fig. 2) is designed to inhibit electrical and magnetic interference for meeting FCC, VDE,
VCCI standard requirements.
Fig. 2
#2 Rectifier and filter
AC Voltage (90-264V) is rectified and filtered by BD601, C605 (See Fig 3) and the DC Output
voltage is 1.4*(AC input). (See Fig.3)
Fig. 3
4
Confidential
Q7T4-FP71G LCD Monitor Service Guide
Circuit Operation Theory
#3 Switching element and Isolation power transformer
When the Q601 turns on, energy is stored in the transformer.
During Q601 turn-off period, the stored energy is delivered to the
secondary of transformer. R607, C607 and D601 is a snubber circuit.
R615 is current sense resistor to control output power. (See Fig.4)
Fig. 4
#4 Rectifier and filter
D701 and C703 are to produce DC output. L701 is used to suppress high Frequency switching spikes.
(See Fig.5)
Fig. 5
5
Confidential
Q7T4-FP71G LCD Monitor Service Guide
Circuit Operation Theory
#5 PWM Controller
The PWM controller NCP1200A implements a standard current mode architecture. With an
internal structure operating at a fixed 40KHz. Where the switch time is
dictated by the peak current set-point. When the current set-point falls
below a given value. The output power demand diminishes, the IC
automatically enters the so-called skip cycle mode and provides
excellent efficiency.
Fig. 6
#6 Feedback circuit
PC123 is a photo-coupler and TL431 is a shunt regulation. They are
used to detect the output voltage change and be the primary and
secondary isolation. When output voltage changes, the feedback voltage
will be compared and duty cycle will be decided to control the correct
output voltage. (See Fig.7)
6
Confidential
Q7T4-FP71G LCD Monitor Service Guide
Circuit Operation Theory
Fig. 7
A-3.) Control board introduction:
The main parts of the control board are a push button, and a LED.
(a) Push button: It's a simple switch function, pressing it for "ON" to do the auto
adjustment function, releasing it for "OFF" to do nothing.
(c) LED: It indicates the DPMS status of this LCD monitor; green light means DPMS on
(Normal operating condition). Amber light means DPMS off (Power off condition).
7
Confidential
Q7T4-FP71G LCD Monitor Service Guide
Circuit Operation Theory
A-4.) Inverter diagram:
1.Block Diagram:
ON/OFF
OSCILATOR
switching
TRANSFORMER
CCFL
CIRCUIT
15Vin
ON/OFF
PWM CONTROLLER
PROTECTION
TL1451 CIRCUIT
AND DETECT
BRT_ADJ
2. General Specification
Input Voltage: 15V
Input Current: 2A max.
ON/OFF Voltage: 5V
PWM Duty: 5V/50KHz
Output Requirement:
Max. Output Current: 7.5mA
Min. Output Current: 3.3mA
Lamp Working Voltage: 660Vrms
Open Lamp Voltage: 1500Vrms
Frequency: 50KHz
8
Confidential
Q7T4-FP71G LCD Monitor Service Guide
Circuit Operation Theory
3.Circuit Operation Theorem
3.1 ON/OFF SWITCH
The turn-on voltage was controlled by R815 and R816.The inverter was turned on or off by the
switching transistors Q801 and Q802.
9
Confidential
Q7T4-FP71G LCD Monitor Service Guide
Circuit Operation Theory
3.2 PWM Control circuit
TL1451 is a dual PWM controller.C807 and R811 decide the working frequency.BLT_ADJ signal is
from control board, control pulse width then decide how much energy delivery to CCFL also decide
CCFL brightness. Q810 and Q811 be the buffer to rise the drive capability and the totem poles
circuit can improve a capable of driving for Q812.C813 decide the striking time delay.
10
Confidential
Q7T4-FP71G LCD Monitor Service Guide
Circuit Operation Theory
3.3 Oscillator Circuit
Royer circuit uses the characteristic of transformer saturation to oscillate. When the DC power inject,
Q808 or Q809 will turns on, and the current Ic increases. After a period, the transistor will leave the
saturation status and Vce increase. The result causes the voltage of primary coil get lower. Finally the
transistor turn off, and another transistor turn on. These statuses are repeated and the pin7 and pin8 of
T801 will get a sine wave to turn on CCFL.
11
Confidential
5
D
4
CON301
1
2
3
4
5
6
7
8
9
10
3
2
I _KEY
1
KEY_MENU
KEY_EXIT
KEY_LEFT
BLU
ORG
LED301
BLU
ORG
KEY_ RIGHT
KEY_MENU
PW_SW
A2
A1
SW301
1
BLU/ORG
J
G1
KEY_ RIGHT
SW302
1
G1
2060089110
KEY_LEFT
SW303
1
G1
SW306
C
PW_SW
1
G1
KEY_EXIT
SW304
1
G1
I _KEY
SW305
1
G1
D
2240069431
2
G2
2240069431
2
G2
2240069431
2
G2
2240069431
2
C
G2
2240069431
2
G2
2240069431
2
G2
B
B
LED use 06.3N5YG.14X;
Key use 22.40069.431
Project Code
99.L1C72.001
Title
Model Name
O EM/ODM Model Name
NA
Q7T4
CTRL BOARD
A
Size PCB P/N
& lt; Size & gt;
48.L1C03.S02
A
PCB Rev. Document Number
S02
99.L1C72.000-C3-304-002
Date: Thursday, August 26, 2004
Sheet
Prepared By
Reviewed By
ANGEL HU
5
4
3
2
1
ALLEN PC LEE
1
of
Approved By
DAVEN WU
1
R e v.
0
Q7T4-FP71G LCD Monitor Service Guide
Engineering Specification
Table of Contents
1. Introduction
3
2. Operational Specification
3
2.1 Power supply................................................................................................................................. 3
2.2 Signal interface ............................................................................................................................. 4
2.3 Video performance ........................................................................................................................ 5
2.4 Scan range ..................................................................................................................................... 6
2.5 Plug & Play DDC2B Support ....................................................................................................... 6
2.6 Support Timings ............................................................................................................................ 6
3. Operational & Functional Specification
7
3.1 Video performance ........................................................................................................................ 7
3.2 Brightness Adjustable Range ........................................................................................................ 7
3.3 Acoustical Noise ........................................................................................................................... 7
3.4 Environment.................................................................................................................................. 7
3.5 Transportation ............................................................................................................................... 7
3.6 Electrostatic Discharge Requirements........................................................................................... 8
3.7 EMC .............................................................................................................................................. 8
3.8 Reliability...................................................................................................................................... 8
3.9 Audio performance........................................................................................................................ 9
4. LCD Characteristics
9
4.1 The Physical definition & Technology summary of LCD panel ................................................... 9
4.2 Optical characteristics of LCD panel ............................................................................................ 9
5. User Controls
10
5.1 User's hardware control definition................................................................................................ 10
5.2 OSD control function definition.................................................................................................... 10
6. Mechanical Characteristics
11
6.1 Dimension ..................................................................................................................................... 11
6.2 Weight ........................................................................................................................................... 11
6.3 Plastic ............................................................................................................................................ 11
6.4 Carton............................................................................................................................................ 12
1
Confidential
Q7T4-FP71G LCD Monitor Service Guide
Engineering Specification
Table of Contents
7. Pallet & Shipment
12
7.1 Container Specification................................................................................................................. 12
7.2 Carton Specification...................................................................................................................... 12
Product: ................................................................................................................................. 12
Package: ................................................................................................................................ 12
8. Certification
12
Appendix: Physical Dimension Front View and Side view
14
2
Confidential
Q7T4-FP71G LCD Monitor Service Guide
Engineering Specification
1. Introduction
This specification describes Q7T4, which is a 17.0" analog interface color TFT LCD monitor without audio. The
monitor supports up to 1280x1024 pixel resolution and refresh rate of 75 Hz. The independent 6 bits R, G, B
colors are capable of displaying 16.2M colors (RGB-6bit + FRC data). In addition, dithering function is
supported. The features summary is shown below,
*All panel spec. in C201 definition depends on the variance of panel source.
Feature items
Panel supplier & module name
Screen diagonal
Display Format
Pixel Pitch
Viewing Angle (@ Contrast Ratio = 10)
Analog interface with Scaling supported
DVI interface with Scaling supported
Video interface with Scaling supported
Max resolution mode supported
Number of Display Colors supported
Contrast Ratio
Luminance
Specifications
AUO M170EG01
17.0" (432mm)
SXGA / 1280 (H) x 1024 (V)
0.264 mm x 0.264 mm
R/L: 70/70 degrees (typ.)
and U/D: 70/60 degrees (typ.)
Yes
No
No
1280 x 1024 @ 75Hz
16.2M colors
450:1 (typ.)
260 cd/m2 (typ.)
AC power input
DC power input (with AC power adapter)
Yes
No
DPMS supported
Yes
LED indicator for power status showed
OSD for control & information supported
Multi-language supported for OSD
Yes
Yes
Yes
Buttons control supported
Yes
Flywheel control supported
Scaling function supported
Auto adjustment function supported
DDC function supported (EDID ver. 1.3)
Audio speakers supported
Audio Jack (input connector) supported
Earphone Jack (input connector) supported
Microphone function supported
Mechanical Tilt base design
VESA wall mounting design
Mechanical Rotate design
Mechanical Lift base design
Kensington compatible lock design
No
Yes
Yes
Yes
No
No
No
No
Yes
Yes
No
No
Yes
Remark
Further divided into v.0 and v.1
versions (spec v.1)
337.920(H) x 270.336(V)
Panel spec.
With 15-pin D-sub connector
(RGB 6-bits + FRC data)
White Luminance@CCFL
7.5mA (center)
90-264 Volts, 47-63 Hz.
<= 1W at 115?5 VAC
<=2W at 230 VAC in Power off
Preferred Mode
Green/Amber/Non
8 languages
6 buttons including 1 monitor
power on/off control button.
"i-key" function
DDC2B only
From -5 to +20 degree
2. Operational Specification
2.1 Power supply
3
Confidential
Q7T4-FP71G LCD Monitor Service Guide
Engineering Specification
Item
Input Voltage range
Input Current range
Power Consumption
DPMS
Condition
Spec
Universal input full range
90 ~ 264VAC
Normal "On" operation
90~264VAC /47~63Hz
& lt; 2.0 Arms
& lt; 40 W
& lt; 1 W in power preferred
mode, 115V
& lt; 2 W, 230V
& lt; 30 A (peak)
& lt; 60 A (peak)
& lt; 3.5 mA
Without damage
& lt; 0.1 ohm
1KV
Common: 2KV,
Differential: 1KV
DPMS "Off" state
Inrush Current
Earth Leakage Current
Hi-Pot
Power Line Transient
110 VAC
220 VAC
264 VAC/50Hz
1. 1500VAC, 1 sec
2. Ground test: 30A, 1sec
IEC1000-4-4
IEC1000-4-5 (Surge)
OK N.A
Remark
?
?
?
LED: Green
?
LED: Amber
?
Cold-start
?
(on-line test)
(in-lab test)
?
?
?
CCFL operation range
90 ~ 264VAC
3 mA ~8mA
CCFL Frequency
90 ~ 264VAC
40KHz ~ 80KHz
?
Color: Black
Length: 1500 +/- 50 mm
Panel Spec.
3.0 ~ 8.0mA rms
Panel Spec.
40KHz ~ 80KHz
?
?
Power cord
2.2 Signal interface
Item
Condition
Spec
15-pin D-sub connector
Color: Black
Length: 1500 +/- 30 mm
Color: Black
Length: 2000 +/- 50 mm
See Note-1
24-pin DVI-D connector
Signal type
Separate analog R/G/B
Level
700 mV (peak to peak)
Impedance
75 Ohms +/- 1.5 Ohms
Signal Cable
24-pin DVI-D
Video input
Separate H/V-sync
Composite H/V-sync
(Positive/Negative)
Logic High: 2.4V ~ 5.5V
Logic Low: 0V ~ 0.5V
(TTL level)
Signal type
Sync input
Level
Impedance
Sync Pulse Width (SPW)
Minimum 2.2K?(pull down)
0.7?s & lt; H-SPW
1H & lt; V-SPW
Remark
?
See Note-2
15-pin D-Sub
Pin assignment
OK N.A
?
?
For 15-pin D-sub
?
For 24-pin DVI-D
?
?
?
For 15-pin D-sub
?
For 15-pin D-sub
?
Refer to VESA VSIS
Standard V1R1
?
?
10K? for application
Note-1: The pin assignment of 15-pin D-sub connector is as below,
1
5
6
10
11
15
4
Confidential
Q7T4-FP71G LCD Monitor Service Guide
Engineering Specification
Pin
1
2
3
4
5
6
7
8
Signal Assignment
Pin
Signal Assignment
Red video
Green video
Blue video
Ground
Cable Detected
Red Ground
Green Ground
Blue Ground
9
10
11
12
13
14
15
PC5V (+5 volt power)
Sync Ground
Ground
SDA
H-Sync (or H+V)
V-sync
SCL
Note-2: The pin assignment of 24-pin DVI-D connector is as below,
Pin
Signal Assignment
Pin
Signal Assignment
1
2
3
4
5
6
7
8
9
10
11
12
TMDS RX2TMDS RX2+
TMDS Ground
Floating
Floating
DDC Clock
DDC Data
Floating
TMDS RX1TMDS RX1+
TMDS Ground
Floating
13
14
15
16
17
18
19
20
21
22
23
24
Floating
+5V Power
Ground
Hot Plug Detect
TMDS RX0TMDS RX0+
TMDS Ground
Floating
Floating
TMDS Ground
TMDS Clock+
TMDS Clock-
2.3 Video performance
Item
Max. support Pixel rate
Max. Resolution
Rise time + Fall time
Condition
Spec
135 MHz
1280 x 1024
& lt; 6.25 ns
(50% of minimum pixel
clock period)
OK N.A
Remark
?
?
?
1280 x 1024 @ 75Hz
(max. support timing)
Settling
Time
after
overshoot /undershoot
& lt; 5% final full-scale value
?
Refer to VESA VSIS
Standard V1R1
Overshoot/Undershoot
& lt; 12% of step function
voltage level over the full
voltage range
?
Refer to VESA VSIS
Standard V1R1
5
Confidential
Q7T4-FP71G LCD Monitor Service Guide
Engineering Specification
2.4 Scan range
Item
Condition
Spec
Horizontal
Vertical
OK N.A
30 ~ 83 KHz
56 ~ 76 Hz
?
?
Remark
Without Frame buffer
2.5 Plug & Play DDC2B Support
Item
DDC channel type
Condition
Spec
OK N.A
?
DDC2B
EDID
Remark
Version 1.3
Refer to Q7C4 S/W
spec. document to see
the detailed EDID data
definition.
?
2.6 Support Timings
Actual Output
Input Timing
OK N.A
Resolution
Horizontal
Vertical
Dot Clock
Actual display
Remark
640x350
31.47(P)
70.08(N)
25.17
1280x943
?
DOS
720x400
31.47(N)
70.08(P)
28.32
1280x1024
?
DOS
640x480
31.47(N)
60.00(N)
25.18
1280x1024
?
DOS
640x480
35.00(N)
67.00(N)
30.24
1280x1024
?
Macintosh
640x480
37.86(N)
72.80(N)
31.5
1280x1024
?
VESA
640x480
37.50(N)
75.00(N)
31.5
1280x1024
?
VESA
800x600
37.88(P)
60.32(P)
40.00
1280x1024
?
VESA
800x600
48.08(P)
72.19(P)
50.00
1280x1024
?
VESA
800x600
46.86(P)
75.00(P)
49.50
1280x1024
?
VESA
832X624
49.72(N)
74.55(N)
57.29
1280x1024
?
Macintosh
1024x768
48.36(N)
60.00(N)
65.00
1280x1024
?
VESA
1024x768
56.48(N)
70.10(N)
75.00
1280x1024
?
VESA
1024x768
60.02(P)
75.00(P)
78.75
1280x1024
?
VESA
1024X768
60.24(N)
74.93(N)
80.00
1280x1024
?
Macintosh
1152x864
67.50(P)
75.00(P)
108.00
1280x1024
?
VESA
1152x870
68.68(N)
75.06(N)
100.00
1280x1024
?
Macintosh
1152x900
61.80(N)
66.00(N)
94.50
1280x1024
?
SUN 66
1152x900
71.81(N)
76.14(N)
108.00
1280x1024
?
SUN
1280x1024
64.00(P)
60.00(P)
108.00
1280x1024
?
VESA
1280x1024
75.83(N)
71.53(N)
128.00
1280x1024
?
IBM1
1280x1024
80.00(P)
75.00(P)
135.00
1280x1024
?
VESA
1280x1024
81.18(N)
76.16(N)
135.09
1280x1024
?
SPARC2
Note-3: "P", "N" stands for "Positive", "Negative" polarity of incoming H-sync/V-sync (input timing).
6
Confidential
Q7T4-FP71G LCD Monitor Service Guide
Engineering Specification
3. Operational & Functional Specification
3.1 Video performance
Item
Resolution
Contrast ratio
Brightness
Response time
Condition
Spec
Any input resolution modes
which are under 1280 x 1024
1280 x 1024
?
450:1 (typ.)
?
?
?
?
?
?
2
At R/G/B saturated condition
260 cd/m (typ.) @ 7.5mA
Rising + Falling time
16 ms (typ.)
At Contrast ratio = 10
R/L: 70/70 degrees (typ.)
At Contrast ratio = 10
U/D: 70/60 degrees (typ.)
Viewing angle
CIE coordinate of White
(0.31, 0.33) +/- (0.03, 0.03)
16.2M colors
(RGB 6-bits + FRC data)
Display colors
OK N.A
?
Remark
Support dithering
3.2 Brightness Adjustable Range
Item
Condition
At default contrast level
(saturate point) & Full-white
Brightness adjustable range
color pattern
Spec
(Max. brightness value -
Min. brightness value)
? 100 cd/m^2
OK N.A
Remark
?
3.3 Acoustical Noise
Item
Acoustical Noise
Condition
Spec
At 1 meter distance
& "Audio" function disabled
OK N.A
? 40 dB/A
Remark
?
3.4 Environment
Item
Condition
10 ~ 90%
Non-operating
5 ~ 95%
Operating
0~3048m (10,000ft)
Non-operating
Altitude
-20 ~ +60 ?
Operating
Humidity
0 ~ +40 ?
Non-operating
Temperature
Spec
Operating
0~12,192m (40,000ft)
OK N.A
?
?
?
?
?
?
Remark
Non-condensing
Non-condensing
Without packing
With packing
3.5 Transportation
Item
(1) Vibration
Condition
Spec
(1) Sine wave
Package, Non-Operating
5~200Hz 1.5G, 1 octave/min,
15 min dwell on each resonant
frequency, all primary axis,
one sweep (30 min minimum)
per orientation, total of 90+
min.
OK N.A
Remark
?
7
Confidential
Q7T4-FP71G LCD Monitor Service Guide
Engineering Specification
(2) Random
5 ~100 Hz, 0 dB/Oct. 0.015
g2/Hz
100 ~200 Hz, -6 dB/Oct.
200 Hz, 0.0038 g2/Hz
Equivalent to 1.47 Grms, All
primary axis, 20 min perorientation, total is 60 min.
(3) Procedure:
(2) Unpackaged Vibration
Confirmed sample with
appearance and function ready
before testing then compare
with after test record as
brightness, uniformity and
contrast ratio. Perform
random vibration after
sine-wave vibration test.
Test Spectrum:
20 Hz 0.0185(g2/Hz)
200Hz 0.0185(g2/Hz)
Unpackaged, Non-Operating Duration : 5 Minutes
Axis : 3 axis ( Horizontal
and Vertical axis ,Z axis)
(3) Drop
Package, Non-Operating
(4) Shock
Wooden package,
Non-Operating
91 cm Height (MP stage)
(1 corner, 3 edges, 6 faces)
Waveform: half sine
Faces: 6 sides/ per orientation
3 shocks.
Duration: & lt; 3ms
Velocity accelerate: 75g
?
?
?
3.6 Electrostatic Discharge Requirements
Item
Electrostatic Discharge
Condition
Spec
IEC801-2 standard
Contact: 8KV
Air: 15KV
OK N.A
Remark
?
3.7 EMC
Item
Condition
Spec
Electric
TCO03
Magnetic
FCC part 15J class B
EMI
EN55022 class B
Band 1 & lt; 10 V/m
Band 2 & lt; 1 V/m
Band 1 & lt; 200nT
Band 2 & lt; 25nT
After Mass production under
1dBuv for constant measure.
Besides DNSF and VCCI
class-2 are optional.
OK N.A
Remark
?
?
?
3.8 Reliability
Item
MTBF Prediction
CCFL Life time
Condition
Spec
Refer to MIL-217F
At 25?2?, under 7.0mA
& gt; 60,000 Hours
50,000 Hours (typ.)
OK N.A
?
?
Remark
Excluding CCFL
See Note-4
Note-4: CCFL lifetime is determined as the time at which brightness of lamp is 50%. The typical lifetime of
CCFL is on the condition at 7.5mA lamp current.
8
Confidential
Q7T4-FP71G LCD Monitor Service Guide
Engineering Specification
3.9 Audio performance
Item
Preamp + Power amp
(1)Output power
(2)THD (@ 1W)
(3)S/N ratio
Speaker Driver
(1)Nominal impedance
(2)Rated input power
(3)Frequency response
(4)Output sound pressure level
(5)Dimension of box
Audio Control
(1)Volume range
(2)Mute
Condition
Spec
OK N.A
Remark
?
?
?
1 Wrms/CH @ 1KHz
& lt; 1%
& gt; 40dB
?
?
?
?
?
8 ohm
2 W/CH
180~20KHz SPL-10dB
84 ? 3 dB (1W 0.5M)
62x33cx20 mm2
?
?
0 ~100 levels
On/Off
4. LCD Characteristics
4.1 The Physical definition & Technology summary of LCD panel
Item
LCD Panel Supplier
Panel type of Supplier
Screen Diagonal
Display area
Physical Size
Weight
Technology
Pixel pitch
Pixel arrangement
Display mode
Support color
Condition
Spec
OK N.A
AUO
M170EG01 V1
432mm(17.0")
Unit=mm
337.920(H) x 270.336(V)
Unit=mm
358.5(H) x 296.5(V) x 17.0 (D) (typ.)
Unit=gram
1900 (typ.)
TN type
Unit=mm
0.264 x 0.264
R/G/B vertical stripe
Normally white
16.2M colors (RGB 6-bits + FRC data)
Remark
?
?
?
?
?
?
?
?
?
?
?
Per one triad
4.2 Optical characteristics of LCD panel
Item
Unit
Conditions
Viewing Angle
[degree]
[degree]
[degree]
[degree]
Horizontal (Right)
CR = 10
(Left)
Vertical
(Up)
CR = 10 (Down)
Normal Direction
Rising Time
Falling Time
Rising + Falling
Red x
Red y
Contrast ratio
Response Time
Color / Chromaticity
[msec]
[msec]
[msec]
Min.
60
60
60
50
250
0.61
0.31
Typ.
70
70
70
60
450
12
4
16
0.64
0.34
Max.
Remark
20
5
25
0.67
0.37
9
Confidential
Q7T4-FP71G LCD Monitor Service Guide
Engineering Specification
Coordinates (CIE)
Color Coordinates (CIE) White
Luminance Uniformity
White Luminance @ CCFL
7.5mA (center)
Crosstalk (in 75Hz)
[%]
[cd/m2]
Green x
Green y
Blue x
Blue y
White x
White y
9 points measurement
0.26
0.58
0.11
0.04
0.28
0.30
75
0.29
0.61
0.14
0.07
0.31
0.33
80
0.32
0.64
0.17
0.10
0.34
0.36
-
210
260
-
[%]
1.5
* The test methods for the above items' definition, please refer to the relative panel specification.
5. User Controls
5.1 User's hardware control definition
Item
Monitor Power button
Enter button
Right/Inc. button
Left/Dec. button
Exit /Volume button
I-key button
Mode Selection button
Mute button
Input source select button
Condition
Spec
OK N.A
Remark
?
?
?
?
?
?
?
?
?
5.2 OSD control function definition
Item
Condition
Spec
Auto Adjust
Brightness
Contrast
Horizontal Position
Vertical Position
Pixel Clock
Phase
Color
OSD Position
OSD Time
Language
Auto-Geometry
Bluish
Reddish
sRGB
User: Separate R/G/B adjustment
OSD Horizontal position
OSD Vertical position
From 5 sec to 60 sec
8 languages
Color recall
Recall All
Recall
OK N.A
Remark
?
?
?
?
?
?
?
?
?
?
?
?
?
Mode Selection
10
Confidential
Q7T4-FP71G LCD Monitor Service Guide
Engineering Specification
D-sub
DVI
Input Select
Sharpness
Display Information
Volume
Mute
Hot key for Brightness
Hot key for Contrast
Hot key for Volume
Hot key for Mode
For input timing
?
?
?
?
?
?
?
?
?
* The detailed firmware functions' specification, please refer to C212 S/W spec. document.
6. Mechanical Characteristics
6.1 Dimension
Item
Bezel opening
Condition
Spec
OK N.A
339.84 x 272.24 mm
Remark
?
Monitor without Stand
L x W x H mm
323.75*378*60.5mm
?
Monitor with Stand
L x W x H mm
362*378*135.31 mm
?
Carton Box (outside)
L x W x H mm
456(L)*423(W)*114(H)
?
Tilt: -5 ~ +20 degree
?
Tilt and Swivel range
Swivel: 0 degrees
6.2 Weight
Item
Monitor (Net)
Monitor with packing (Gross)
Condition
Spec
3.8 Kg
5.7 Kg
OK N.A
Remark
?
?
6.3 Plastic
Item
Flammability
Condition
Heat deflection To
UV stability
Spec
OK N.A
94-HB
?
ABS
65 ?
?
ABS
Delta E & lt; 8.0
Remark
?
MPRII: ABS
Resin
?
(VW55/VE0856/D350)
MT-11020
Color
?
BCS-Y5003A
Texture
?
Bezel texture
MT-11000
Bezel painting
T8020C
11
Confidential
Q7T4-FP71G LCD Monitor Service Guide
Engineering Specification
6.4 Carton
Item
Condition
Spec
OK N.A
B Flute
?
16 KGF/cm2
?
18 Layers
?
Kraft
Material
Compression strength
Burst Strength
Stacked quantity
Remark
?
?
288 KGF
Color
7. Pallet & Shipment
7.1 Container Specification
Container
Quantity of products
(sets)
(Every container)
20'
Stowing Type
1080
Quantity of Products
(sets)
(Every Pallet)
Quantity of pallet
(sets)
(Every Container)
Pallet B: 12
Pallet A: 90
Pallet A: 14
Pallet B: 72
Pallet B: 14
X
X
X
X
X
X
X
2520
40'
Pallet A: 12
Pallet B: 72
With pallet
Pallet A: 90
X
20'
Without pallet
40'
7.2 Carton Specification
Product:
Net Weight (Kg)
Gross Weight (Kg)
Dimension w/o Base
L*W*H (mm)
Dimension w/ Base
L*W*H (mm)
3.8Kg
5.7Kg
323.75*378*60.5mm
362*378*135.31 mm
Package:
Carton Interior Dimension (mm)
L*W*H
448(L)*415(W)*100(H)
Carton External Dimension (mm)
L*W*H
456(L)*423(W)*114(H)
8. Certification
Item
Environment
Condition
Spec
OK N.A
Remark
ISO14000
Requirement
?
Green design
API Doc. 715-C49
Blue Angel
German Standard
?
Switzerland
?
E-2000
12
Confidential
Q7T4-FP71G LCD Monitor Service Guide
Engineering Specification
EPA
USA Standard
?
TCO'99
?
TCO'03
?
Green Mark
?
PC98/99
PC-Monitor
DDC 2B
USB
?
Version 1.3
DPMS
?
VESA
Microsoft Windows
?
?
External
UL60950 3rd edition
UL (USA)
?
CAN/CSA-C22.2 No. 60950
?
Nordic / D.N.S.F
EN60950
?
FIMKO
EN60950
?
CE Mark
73/23/EEC
?
CSA (Canada)
IEC60950
Safety
?
EN60950
?
EN60950
TUV/GS
?
EN60950 /
CB
?
EK1-ITB 2000:2003
?
CCC (China)
GOST
EN60950
?
?
SASO
89/336/EEC
?
FCC Part 15 B
?
EN55022
Class B
?
CISPR 22
Class B
?
VCCI Class B
?
CNS 13438
?
AS/ NZS CISPR22
?
CE Mark
FCC (USA)
EMC
VCCI (Japan)
BSMI (Taiwan)
C-Tick (Australia)
DHHS (21 CFR)
X- Ray Requirement
?
USA X- Ray Standard
?
DNHW
PTB
?
German X- Ray standard
TUV / Ergo
Ergonomics
?
ISO 13406-2
?
prEN50279
?
13
Confidential
Q7T4-FP71G LCD Monitor Service Guide
Engineering Specification
Appendix: Physical Dimension Front View and Side view
Fig. 1 Physical Dimension Front View and Side view
14
Confidential
5
4
3
2
2
D N5
BAV99
C1
3 0.01U
C 20
0.01U J
ESD solution
C 25
0.01U J
C 49
0.01U J
1
1
3
2
C2
0 .1U
3
1
TP1
1
3
3
PC5V
R1
4.7K
U1
A0
A1
2
3
VCC
WP
A2
SCL
VSS
4
SDA
D1
6.2V
R2
4.7K
8
TP2
7
6
TP5
0
TP10
D D C _WP_A
R 14
D
R+
G+
TP8
B+
L1
L2
D2
6.2V
D3
6.2V
100
C4
0.047U
100
C5
0.047U
R9
100
C6
0.047U
R 11
100
C7
0.047U
R 12
C9
4.7P C
C 77
0 .1U
1
R 16
100
C8
0.047U
R EDR ED+
G REENGREEN+
BLUE-
C 10
4.7P C
BLUE+
C 11
4.7P C
200
R 17
1
0.047U
A-detect
100
3.3V_MCU
C3
R8
Z60
100
R7
Z60
R 35
TP11
2024012A15
R6
Z60
L3
47
2
DSUB_SCL
47
R 15
D SUB_SDA
15
75
TP6
G2
R 13
4.7K
14
R5
75
TP3
TP4
2
R 10
13
TP9
AT24C02A
12
TP7
D SUB_SDA
R4
75
6
1
7
2
8
3
9
4
10
5
11
D SUB_SCL
5
R3
J1
G1
1
1
D
D N4
BAV99
2
D N3
BAV99
2
D N2
BAV99
P C5V
2
D N1
BAV70LT1
1
2
1
3.3V_MCU
3.3V_MCU
200
H S YN C
2
2
V SYN C
D5
6.2V
R 19
2K
C 12
22P J
C 13
20P J
1
R 18
2K
1
D4
6.2V
C
C
3.3V_MCU
D N6
BAV70LT1
1
D VIPC5V
3
2
J2
3.3V_MCU
TP12
TP13
TP14
TP15
TP16
TP17
TP18
RX2RX1RX0RX2+
RX1+
RX0+
ESD solution
2
3
R 22
0
RX0M
1
2
RX0-
3
R 24
0
RX0P
4
A0
VCC
A1
WP
A2
SCL
VSS
SDA
R 21
4.7K
8
7
6
R 23
47
5
R 25
47
D VI_SCL
D VI_SDA
2
RX0+
2
3
D N8
BAV99
R 20
4.7K
U2
1
D N7
BAV99
TP19
TP20
RX1-
1
DVI_SDA
TP22
RX1+
Hot- Plug R 30
R 26
10K
RX2-
3
3
0
R 33
0
R 34
0
0
D D C _WP_D
R 29
4.7K
B
RX2M
RX2P
2
3
R 27
3.3V_MCU
D N 12
BAV99
2
1
D N13
BAV99
D N 14
BAV99
3
RXCM
2
RXC-
1
C 16
0.01U
1
D8
6.2V
ESD solution
0
R 32
RX1P
RXC+
D N 15
BAV99
3
RXCP
1
1
1
1
2022009024
D7
6.2V
R 31
D N 11
BAV99
1
RX2+
3
2
2
2
D6
6.2V
0
RX1M
2
RXC-
G1
G2
D-detect
0
R 28
D N10
BAV99
2
RXC+
TP23
TP24
3
2
DVI_SCL
DVIPC5V
TP21
AT24C02A
D N9
BAV99
3.3V_MCU
G1
G2
C 14
0.1U
C 15
0.01U
1
B
1
9
17
2
10
18
3
11
19
4
12
20
5
13
21
6
14
22
7
15
23
8
16
24
1
1
9
17
2
10
18
3
11
19
4
12
20
5
13
21
6
14
22
7
15
23
8
16
24
A
A
Project Code
Model Name
O EM/ODM Model Name
Q7T4
99.L1C72.001
Title
NA
INTERFACE BOARD
Size P CB P/N
& lt; Size & gt;
48.L1C01.S02
PC B Rev. Document Number
Date: Thursday, July 29, 2004
Prepared By
Sheet
R eviewed By
AN GEL HU
5
4
3
2
S02
99.L1C72.000-C3-304-001
ALLEN PC LEE
1
1
of
6
Ap proved By
D AV EN WU
Re v.
1
5
4
3
2
1
Delete FB1, C20; FB2, C25 ;
6/16 change FB3,FB4,FB5 from
0805 to 0603
C 17
3.3V_MCU
R 3 .3DVCC
18P J
0 .1U
C 27
C 28
0 .1U
0.1U
6
7
0 .1U
3.3V_MCU
9
12
14
15
17
18
20
21
23
24
RX2P
RX2M
RX1P
RX1M
RX0P
RX0M
RXCP
RXCM
R 38
4.7K
R 39
1K
11
13
19
26
10
16
22
25
TMDS_VCC
C
30
31
33
34
35
37
38
BLUE+
BLUEGREEN+
GREENR ED+
R ED-
R 2 .5DVCC
+2.5V
F B5
29
36
41
AD C _VCC
1
220 OHM
2
+
C 42
22U 25V
& lt; Spec & gt;
C 43
0 .1U
C 44
0.1U
C 45
0 .1U
C 46
C 24
0 .1U
0 .1U
28
27
32
39
40
42
43
H S YN C
V SYN C
DPLL_VDD
APLL_VDD
DPLL_GND
APLL_GND
1
2
C 30
22U 25V
& lt; Spec & gt;
C 31
C 32
0.1U
128
97
70
44
AG3N/TEAN
AG3P/TEAP
ACLKN/TEBN
ACLKP/TEBP
AB1N/TECN
AB1P/TECP
AB2N/TECLKN
AB2P/TECLKP
AB3N/TEDN
AB3P/TEDP
B+
BSOG/ADC_TEST
G+
GR+
RADC_VDD
ADC_VDD
ADC_VDD
ADC_REFIO
ADC_GND
ADC_GND
ADC_GND
ADC_GND
AHS
AVS
BR1N/TOAN
BR1P/TOAP
BR2N/TOBN
BR2P/TOBP
BR3N/TOCN
BR3P/TOCP
BG1N/TOCLKN
BG1P/TOCLKP
BG2N/TODN
BG2P/TODP
100
VOL_ADJ
1
R 36
113
112
55
+
C 19
4.7U 25V
+
108
107
106
105
104
103
102
101
100
99
R 37
C 23
4.7U 25V
100
BRT_ADJ
68
67
66
65
64
63
62
61
60
59
C
94
93
92
91
90
89
88
87
86
85
RXOIN0RXOIN0+
RXOIN1RXOIN1+
RXOIN2RXOIN2+
RXOCKINRXOCKIN+
RXOIN3RXOIN3+
82
81
80
79
78
77
76
75
74
73
RXEIN0RXEIN0+
RXEIN1RXEIN1+
RXEIN2RXEIN2+
RXECLKRXECKIN+
RXEIN3RXEIN3+
C 33
0 .1U
BG3N
BG3P
BCLKN
BCLKP
BB1N
BB1P
BB2N
BB2P
BB3N
BB3P
RTD2523
TMDS_VDD
TMDS_VDD
TMDS_VDD
TMDS_VDD
TMDS_GND
TMDS_GND
TMDS_GND
TMDS_GND
F B3
+
AR1N
AR1P/TCON[0]
AR2N/TCON[1]
AR2P/TCON[5]
AR3N/TCON[6]
AR3P/TCON[7]
AG1N/TCON[8]
AG1P/TCON[9]
AG2N/TCON[10]
AG2P/TCON[11]
TMDS_TST/PWM1
EXT_RES
RX2P
RX2N
RX1P
RX1N
RX0P
RX0N
RXCP
RXCN
AD C _VCC
220 OHM
TCON[12]/COUT/PWM2
PWM0/REFCLK
TCON[13]/COUT/PWM2
PLL_TEST1
PLL_TEST2
50
54
53
52
51
111
56
3.3V_MCU
XO
XI
2
0.1U
1
2
4
5
3
8
C 29
0 .1U
XI
C 22
0 .1U
C 26
C 21
1
TMDS_VCC
2
XO
R 3 .3DVCC
2.5V Ground
2.5V Ground
2.5V Ground
2.5V Ground
120
109
96
84
72
57
48
R 3 .3DVCC
127
98
69
45
18P J
2.5V Power
2.5V Power
2.5V Power
2.5V Power
C 41
0 .1U
TCON[11]/V[0]
TCON[10]/V[1]
TCON[9]/V[2]
TCON[8]/V[3]
TCON[7]/V[4]
TCON[6]/V[5]
TCON[5]/V[6]
TCON[1]/V[7]
TCON[0]/VCLK
C 40
0 .1U
114
115
116
117
118
119
122
123
124
C 39
0 .1U
121
110
95
83
71
58
49
C 38
0.1U
3.3V Power
3.3V Power
3.3V Power
3.3V Power
3.3V Power
3.3V Power
3.3V Power
C 37
0 .1U
DDCSDA
DDCSCL
DDCSDA2
DDCSCL2
C 36
0 .1U
47
46
125
126
C 35
C 34
22U 25V
& lt; Spec & gt;
3.3V Ground
3.3V Ground
3.3V Ground
3.3V Ground
3.3V Ground
3.3V Ground
3.3V Ground
2
+
R 2 .5DVCC
D
SCLK
SDIO[0]
TCON[4]/SDIO[1]
TCON[3]/SDIO2]
TCON[2]/SDIO[3]/PWM2
SCSB
RESET#
220 OHM
R 3 .3DVCC
Y1
24.576MHZ
C 18
F B4
1
D
0 .1U
RTD_SCLK
RTD_SDO/SDI
S DIO1
S DIO2
S DIO3
RTD_SCSB
B
RESET
RTD_RESET
R 40
R 41
0
0
R 67
4.7K
B
delete RN1, add R65
R66;Delete RN2 Add R67;
R35: Delete R65,R66 0615
D SUB_SDA
D SUB_SCL
3.3V_MCU
A
A
Project Code
Model Name
O EM/ODM Model Name
Q7T4
99.L1C72.001
Title
NA
INTERFACE BOARD
Size P CB P/N
& lt; Size & gt;
48.L1C01.S02
PC B Rev. Document Number
Date: Thursday, July 29, 2004
Prepared By
Sheet
R eviewed By
AN GEL HU
5
4
3
2
S02
99.L1C72.000-C3-304-001
ALLEN PC LEE
1
2
of
6
Ap proved By
D AV EN WU
Re v.
1
5
4
3
delete RN4,RN5,RN6,RN8;
Q1,R44,C49,R46,R47
2
1
1
2
3
4
R N3
4.7K
8
7
6
5
3.3V_MCU
D
D
3.3V_MCU
I - KEY
PW _SW
RTD_SCSB
PANEL_ON
D-detect
KE Y_MENU
C 47
0 .1U
3.3V_MCU
29
HSDA/P3.1/Txd
DSUB_SCL
3.3V_MCU
+2.5V
GMT
U6
1
VIN
C 52
0.1U
VOUT
C
3
C 53
0.1U
G950T65U
28
P6.0/AD0
VOL_ON
GND
GND
41
42
43
40
DA5/P5.5
DA4/P5.4
DA3/P5.3
1
2
3
4
5
44
VSYNC
DA2/P5.2
DA1/P5.1
DA0/P5.0
VDD3
HSYNC
P6.1/AD1
27
18
BL_ON
30
HSCL/P3.0/Rxd
LE D_GRN
31
P6.4/DA10
P1.0
P1.1
17
P6.2/AD2/HLFHI
L ED_ORG
32
P6.5/DA11
MTV312MV64
26
16
STOUT/P4.2
K EY_RIGHT
33
P6.6/DA12
P1.7
D D C _ WP_D
C
15
ISCL/P3.5/T1
25
D D C _WP_A
34
P6.7/DA13
P1.6
14
D D C_WP_A
35
DA6/P5.6
ISDA/P3.4/T0
P1.5
SC L
SOCKET P/N: 22.10079.044
X1
SD A
AT24C04N-10SI-2.7
D D C _ WP_D
36
DA7/HCLAMP
SC L
5
4.7K
37
VBLANK/P4.0
X2
6
3.3V_MCU
38
HBLANK/P4.1
U5
VSS
24
13
P6.3/AD3
P1.4
12
SD A
DA9/HALFV
23
Y2
12MHZ
39
DA8/HLFHO
22
11
SDA
R 68
VDD
P1.3
10
C 50 6.8P J
SCL
GND
7
WP
A2
4
R 43
4.7K
8
VCC
A1
3
RST
21
9
P1.2
4.7K
20
8
R 45
NC
6
7
P3.2/INT0
3.3V_MCU
3.3V_MCU
C 51 6.8P J
NC
C 48
0.22U K
19
RESET
A0
2
3.3V_MCU
R 42
4.7K
U4
1
2
G1
**C50 close to scaler, R43 close to MCU.
D SUB_SDA
RTD_SDO/SDI
KEY_LEFT
KEY_EXIT
A-detect
RTD_RESET
C 55
100P
50V J
1
2
3
4
TP25
TP26
BRT_ADJ
8
7
6
5
4.7K
TP30
VOL_ADJ
3.3V_MCU
J3
1
3
5
7
9
11
1
3
5
7
9
11
2
4
6
8
10
12
TP27
2
4
6
8
10
12
L4
Z30
1
B
2N3906
Q2
1
0 .1U
C 64
220P J
2
10K
R 49
2N3906
Q3
R 51
BL_ON
+5V
3.3V_MCU
VOL_ON
+ C 56
22U 25V
0 .1U
C 60
B
0 .1U
+ C 57
22U 25V
C 61
C 62
C 63
0 .1U
0.1U
0 .1U
220
220
2
3
R 48
C 59
2
C 58
L ED_ORG
220 OHM
TP28
TP29
TP31
2072060206
3.3V_MCU
L ED_ORG
L5
1
R N7
C 54
100P
50V J
2
SDIO1
SDIO2
SDIO3
RTD_SCLK
LE D_GRN
R 50
10K
1
3
LE D_GRN
C 65
0 .1U
C 66
0 .1U
J4
R 53
KEY_EXIT
KEY_LEFT
K EY_RIGHT
K EY_MENU
PW _SW
I - KEY
1K
R 54
1K
L6
R 55
1K
R 56
1K
R 57
1K
R 58
L7
L8
L9
L10
1K
L11
TP32
TP33
TP34
TP35
TP36
TP37
TP38
TP39
TP40
R 52
0
1
2
3
4
5
6
7
8
9
2060091109
C 67
100P
50V J
A
C 68
100P
50V J
C 69
100P
50V J
C 70
100P
50V J
C 71
100P
50V J
C 72
100P
50V J
A
Project Code
Model Name
O EM/ODM Model Name
Q7T4
99.L1C72.001
Title
NA
INTERFACE BOARD
Size P CB P/N
& lt; Size & gt;
48.L1C01.S02
PC B Rev. Document Number
Date: Thursday, July 29, 2004
Prepared By
Sheet
R eviewed By
AN GEL HU
5
4
3
2
S02
99.L1C72.000-C3-304-001
ALLEN PC LEE
1
3
of
6
Ap proved By
D AV EN WU
Re v.
1
5
4
3
2
1
+5V
D
D
5V_PANEL
1
3
R59
100K
Q4
ELM13401CA
20K
2
2
C75
OPEN
25V
R61
10K
C74
0.1U
G(1)
Q5
2N3904
1
+
C73
22U 25V
2
+5V
3
R60
1
PANEL_ON
+
2
1
D(3)
S(2)
C76
0.1U
C
C
J5
5V_PANEL
R62
R63
R64
0
0
0
RXEIN3+
RXEIN3RXECKIN+
RXECLKRXEIN2+
RXEIN2-
B
RXEIN1+
RXEIN1RXEIN0+
RXEIN0RXOIN3+
RXOIN3RXOCKIN+
RXOCKINRXOIN2+
RXOIN2RXOIN1+
RXOIN1RXOIN0+
RXOIN0-
A
G1
1
TP41 2
3
TP42 4
TP43 5
TP44 6
7
TP45
8
TP46
9
TP47
10
TP48
11
TP49
12
TP50
13
14
TP51
15
TP52
16
17
TP53
18
TP54
19
TP55
20
TP56
21
TP57
22
TP58
23
24
TP59
25
TP60
26
TP61
27
TP62
28
TP63
29
TP64
30
G2
G1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
G2
B
Project Code
Model Name
99.L1C72.001
Title
O EM/ODM Model Name
NA
Q7T4
INTERFACE BOARD
A
PCB Rev. Document Number
Date: Thursday, July 29, 2004
Prepared By
20K2085030
Size PCB P/N
& lt; Size & gt;
48.L1C01.S02
Sheet
Reviewed By
ANGEL HU
5
4
3
2
S02
99.L1C72.000-C3-304-001
4
ALLEN PC LEE
6
of
Approved By
DAVEN WU
1
R e v.
1
5
4
3
2
1
C
5
1
C
1
D
1
D
OP1
OP
OP2
OP
5
9
5
8
4
8
4
8
3
7
3
7
3
7
2
Optical Points
9
4
B
6
2
6
2
6
H1
H2
HOLE-V8
B
H3
HOLE-V8
OP3
OP
9
HOLE-V8
A
Project Code
Model Name
99.L1C72.001
Title
D ate: Thursday, July 29, 2004
Prepared By
ANGEL HU
4
3
2
NA
INTERFACE BOARD
Size PCB P/N
& lt; Size & gt;
48.L1C01.S02
5
A
O EM/ODM Model Name
Q7T4
P C B R ev. Document Number
99.L1C72.000-C3-304-001
S02
Sheet
R eviewed By
ALLEN PC LEE
1
5
of
6
A pproved By
DAVEN W U
R e v.
1
5
4
3
2
1
1. Add C20, C25, C49, C77, R35
D
D
C
C
B
B
A
A
P r o j e c t Code
Mo d e l Nam e
9 9 .L 1 C72.001
Title
O E M/OD M Mo d e l Nam e
Q7T4
NA
I N T E R FAC E B OAR D
S ize P C B P /N
& lt; Size & gt;
4 8 .L 1 C 01.S02
D a te : Th u r s d a y, J u l y 2 9 , 2004
P r e p a r e d By
5
4
3
2
1
P C B R e v. D o c u m e n t Num ber
S h eet
R e vi e w e d B y
A N GE L H U
S02
AL L E N P C L EE
9 9 .L 1 C 7 2 .000-C3-304-001
6
of
6
A p p r o ve d B y
D AVEN WU
R e v.
1
Q7T4-FP71G LCD Monitor Service Guide
Trouble Shooting
Q7T4 TROUBLE SHOOTING GUIDE
No Display or display is unstable:
1.1 Interface Board:
No picture or picture unstable
Power off
Yes
Turn on power
No
Does cable plugs in
No
Check all of wire then turn on power
connector?
switch again.
Yes
Does power stable?
No
Check Power BD
Yes
Is LED light green/orange?
No
Check control BD
Yes
Is LED status normal?
No
Check Flash Rom or replace it
Yes
Does crystal work correctly?
No
Check crystal CKT or replace it
No
Replace interface BD
Yes
Is interface BD normally?
Yes
Replace panel
1
Confidential
Q7T4-FP71G LCD Monitor Service Guide
Trouble Shooting
2. BUTTON function:
2.1 Control Board
OSD is not working
Yes
Is control BD connecting?
No
Plug control BD then retry
Yes
Is bottom switch normally?
Yes
Replace control BD then retry
No
Replace Control BD
Is OSD working??
No
Check Interface BD
3. OSD function:
OSD doesn't work
Is control BD working?
No
Replace control BD
Check interface BD
4. Power Board
2
Confidential
Q7T4-FP71G LCD Monitor Service Guide
Trouble Shooting
B acklight didn't shine
Y
Y
Replace Q761
IC801 PIN 9 IS 15V?
N
LED shined?
N
N
Plug CN701 again or
checking I/F BD
Y
PWM existed?
(BLT_ADJ)
3.3V existed?
IS I/F board connected?
Y
Y
N
Plug CN601 again or
checking PW BD
Replace new fuse
Turn on level existed?
(BLT_ON)
N
Y
Replace new fuse
N
Insert them again
N
Y
Check CN801, CN802
was pluged properly?
Check IC701 OK?
Replace IC701
Y
N
Replace IC801,Q805
Y
Checking F601
Broke?
Replace new fuse
N
Y
Check IC601 Vcc
existed?
Replace
IC601,Q602,Q603
R602
N
Replace IC602,
IC702,D701 or check
I/F BD
3
Confidential
BENQ LCD Q7T4(FP71G) Spare Parts List
P/N: 99.L1C72.ASE
ITEM DESCRIPTION
PART NO.
LOCATION
1
PCBA I/F BD MI AUO M170EG01
55.L1C01.001
2
IC CONTROLER RTD2023 QFP 128P
71.02023.00E
U3
3
IC EEPROM AT24C02N-10SI-1.8SON
72.02402.C01
U1
4
IC EEPROM AT24C04N-10SI-2.7SON
72.02404.N01
U4
5
IC VR G950T65U SOT-223
74.95065.03C
U6
6
IC FLASH MTV312MV64 (AJ) PLCC44
71.31264.A03
U5
7
PCBA SPS BD MI QT74 EG01
55.L1C02.001
8
PCBA CTRL BD MI Q7T4
55.L1C03.001
9
LCDM 17 M170EG01 V.1 AUO
56.91L83.011
10
ASSY FC ABS 8020C Q7T4
60.L1C01.001
11
ASSY RC ABS 5003A Q7T4
60.L1C02.001
12
ASSY BASE-CLUM ABS 5003A Q7T4
60.L1C03.001
13
CTN B 456*423*114 Q7T4/BENQ
44.L1C01.001
14
CSN BTM EPS Q7T4
47.L1C01.001
15
CSN TOP EPS Q7T4
47.L1C02.001
16
CABLE SIGNAL 15/15P CORE*1 1.5M
50.L9005.501
17
CD MANUAL Q7T4
53.L1C01.001
18
ASSY BASE ABS 5003A Q7T4
60.L1C04.001
* THIS PARTS LIST MAY BE SUBJECT TO CHANGE
WITH PRIOR NOTICE BY CSD OF BENQ.
Page : 1 / 1