BenQ Q7T3 Series User manual

Q7T3(AUO Panel) LCD Monitor Service Guide
Alignment Procedure
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1.Alignment procedure (for function adjustment)
A. Preparation:
1. Setup input timing VGA_60Hz, Cross-Hatch (General-1) pattern.
2. The monitor power on at first time that will enter Factory OSD mode. (If not, Please press “Menu” and “Exit” plus
“Power” buttons at the same time. A “Factory” word will be showed on the upper left hand side of OSD Main menu.)
Burn in mode have already started. (See Fig 1.). If it hasn’t started, Please choose “BURN IN MODE” tag and select
“On” to enable burn-in mode.
3. Setup unit and keep it warm up at least 30 minutes
B. Timing adjustment:
1. Enter factory setting area (if it isn’t at factory mode, Please press “Menu” and “Exit” plus “Power” buttons at the same
time to enter factory mode.).
2. Burn-In Mode “off”. See Fig 2.
3. Select timing from Table 1. The timing marked with star sign (*) have to be adjusted.
4. Execute “Recall All” (press “Yes”) to clear user area in EEPROM
5. The cursor moves to “AUTO Adjust ” or press “I-Key” to run “AUTO adjustment” function.
6. Check the phase of the image; if phase is not perfect adjust it to the best condition.
7. Adjust the settings to following values:
CONTRAST = 50
BRIGHTNESS = 90
OSD TIME = 20
COLOR = sRGB
8. When Factory mode is disable (burn-in mode “off”) then power off after power on will enter user mode.
C. Color balance adjustment:
1. Setup input timing VGA_60Hz, cross-hatch (General-1) pattern.
2. Enter factory setting area (if it isn’t at factory mode, Please press “Menu” and “Exit” plus “Power” buttons at the
same
time to enter factory mode.).
3. Setup the “Burn-in mode” is “On”
4. Select the color to user-preset mode.
5. At Main menu move cursor to “AUTO Adjust ” tag then press the “ENTER” or “I-Key” to run “AUTO Color
balance” function.
6. Checking if the picture is no good, reject this monitor.
D. Color adjustment:
1. Setup input timing VGA_60Hz, cross-hatch (General-1) pattern.
2. Enter factory setting area (if it isn’t at factory mode, Please press “Menu” and “Exit” plus “Power” buttons at the
same
time to enter factory mode.).
3. Move cursor into “BUR-IN MODE” tag and select “On” to enable burn-in mode. (If it wants to do “Auto Color
balance”, please select the color to user-preset mode.)
4. Measure color temperature by Minolta CA-110 (or equivalent equipment).
5. The monitor has already set default value to monitor (just for 56.91L53.001)
If it can’t meet color temperature spec. upper default value. Please use Auto Alignment to calibrate the color
temperature; Bluish, & Reddish and sRGB. The color temperature specification as follows:

Q7T3(AUO Panel) LCD Monitor Service Guide
Alignment Procedure
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X+- 0.326+(-) 0.03
White Balance
(Reddish, 5800K set on OSD) Y+- 0.342+(-) 0.03
220 cd/㎡
X+- 0.313+(-) 0.03White Balance
(sRGB, 6500K set on OSD) Y+- 0.329+(-) 0.03
220 cd/㎡
X+- 0.283+(-) 0.03White Balance
(Bluish, 9300K set on OSD) Y+- 0.297+(-) 0.03
190 cd/㎡
6. Move cursor into “BURN IN MODE” tag and select “Off” to disable burn-in mode.
7. Turns off the monitor power.
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 for analog input, ie. 15-pin D-sub.
5. Read both EEPROM data and confirm it to match with the C212 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
Write Contrast CA 55 Data checksum
Write Brightness CA 56 Data checksum
Write Red Gain CA 57 Data checksum
Write Green Gain CA 58 Data checksum
Write Blue Gain CA 59 Data checksum
Read Contrast C3 55 XX checksum
Read Brightness C3 56 XX checksum
Read Red Gain C3 57 XX checksum
Read Green Gain C3 58 XX checksum
Read Blue Gain C3 59 XX checksum
Write Bluish(9300K) R-Gain Data to NVRAM AA 3C Data checksum
Write Bluish(9300K) G-Gain Data to NVRAM AA 3D Data checksum
Write Bluish(9300K) B-Gain Data to NVRAM AA 3E Data checksum
Write sRGB(6500K) R-Gain Data to NVRAM AA 4C Data checksum
Write sRGB(6500K) G-Gain Data to NVRAM AA 4D Data checksum
Write sRGB(6500K) B-Gain Data to NVRAM AA 4E Data checksum
Write Reddish(5800K) R-Gain Data to NVRAM AA 5C Data checksum
Write Reddish(5800K) G-Gain Data to NVRAM AA 5D Data checksum

Q7T3(AUO Panel) LCD Monitor Service Guide
Alignment Procedure
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Write Reddish(5800K) B-Gain Data to NVRAM AA 5E Data checksum
Write User R-Gain Data to NVRAM AA 6C Data checksum
Write User G-Gain Data to NVRAM AA 6D Data checksum
Write User B-Gain Data to NVRAM AA 6E Data checksum
Read Bluish(9300K) R-Gain data from NVRAM A3 3C XX checksum
Read Bluish(9300K) G-Gain data from NVRAM A3 3D XX checksum
Read Bluish(9300K) B-Gain data from NVRAM A3 3E XX checksum
Read sRGB(6500K) R-Gain data from NVRAM A3 4C XX checksum
Read sRGB(6500K) G-Gain data from NVRAM A3 4D XX checksum
Read sRGB(6500K) B-Gain data from NVRAM A3 4E XX checksum
Read Reddish(5800K) R-Gain data from NVRAM A3 5C XX checksum
Read Reddish(5800K) G-Gain data from NVRAM A3 5D XX checksum
Read Reddish(5800K) B-Gain data from NVRAM A3 5E XX checksum
Read User R-Gain data from NVRAM A3 6C XX checksum
Read User G-Gain data from NVRAM A3 6D XX checksum
Read User B-Gain data from NVRAM A3 6E XX checksum
Change Color Temperature to Bluish CC 1 XX checksum
Change Color Temperature to sRGB CC 2 XX checksum
Change Color Temperature to Reddish CC 3 XX checksum
Change C/T to User CC 4 XX checksum
User mode to factory mode 1A 5A XX checksum
Auto Color (Offset1, Offset2, Gain) 1B 5A XX checksum
Factory mode to User mode 1E 5A XX checksum
Clear user area data 1F 5A XX checksum
Off burn in mode CE 2 XX checksum
Change Language Setting 66 0~7 XX checksum
Note A: Byte4(Checksum) = Byte1 + Byte2 + Byte3
Note B: Data = The value write to MCU
Note C: XX = don't care, any value(<=0xFF).
Note D: The Byte-2 definition of “Change Language Setting” is as below,
0=DE, 1=EN, 2=ES, 3=FR, 4=IT, 5=JA, 6=繁中, 7=簡中
When PC Host sends 0x7D command to MCU, MCU must return as following (2 bytes)
Return Code R-Byte1 R-Byte2
Checksum error code FC AA
Normal return code the above Byte3 (/data) FC
If normal return code is exact FCh FC CF

Q7T3(AUO Panel) LCD Monitor Service Guide
Alignment Procedure
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The Table is for alignment machine to read data from EEPROM to check if the alignment process and write data are correct.
Read EEPROM Contrast A3 92 XX checksum
Read EEPROM Brightness A3 93 XX checksum
Read EEPROM C/T Point A3 94 XX checksum
Read EEPROM OSD-Hpos A3 95 XX checksum
Read EEPROM OSD-Vpos A3 96 XX checksum
Read EEPROM Language A3 97 XX checksum
Read EEPROM OSD Timer A3 98 XX checksum
Read EEPROM Volume A3 99 XX checksum
Table 1.
Incoming display mode (Input timing)
Multi-scan
operation
Resolution
Horizontal
Frequency (KHz)
Vertical
Frequency (Hz)
Dot Clock
Frequency (MHz)
Remark
Actual display
resolution
*720x400 31.47(N) 70.08(P) 28.32 DOS
*640x480 31.47(N) 60.00(N) 25.18 DOS
*640x480 37.50(N) 75.00(N) 31.5 VESA
*800x600 37.88(P) 60.31(P) 40.00 VESA
*800x600 46.87(P) 75.00(P) 49.5 VESA
*1024x768 48.36(N) 60.00(N) 65.00 VESA
*1024x768 60.02(P) 75.00(P) 78.75 VESA
*1152x864 67.50(P) 75.00(P) 108.00 VESA
*1280x1024 64.00(P) 60.00(P) 108.00 VESA
*1280x1024 80.00(P) 75.00(P) 135.00 VESA
Full Screen
1024x768
Table 2
Fig 1. Burn-In Mode “On”

Q7T3(AUO Panel) LCD Monitor Service Guide
Alignment Procedure
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Fig 2. Burn-In Mode “Off”
2.Wire Dressing
a. LVDS Cable with clip

Q7T3(AUO Panel) LCD Monitor Service Guide
Alignment Procedure
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b. LVDS Cable with tape
c. Lamp wire with clip

Q7T3(AUO Panel) LCD Monitor Service Guide
Alignment Procedure
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d. Add 4 Pcs crew to BKT between panel grounding
e. Al-Foil-Mylar on the shielding cover

Q7T3(AUO Panel) LCD Monitor Service Guide
Alignment Procedure
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f. Spacer
g. Signal cable with clip

Q7T3(AUO Panel) LCD Monitor Service Guide
Alignment Procedure
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h. Bracket Cover
i. Plug under AC socket

Q7T3(AUO Panel) LCD Monitor Service Guide
Alignment Procedure
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j. Main Grounding Wire
k. Control BD wire: conductive tape change to Clip

Q7T3(AUO Panel) LCD Monitor Service Guide
Alignment Procedure
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l. Shielding cover: conductive tape
m. Bracket with panel grounding spring

Q7T3(AUO Panel) LCD Monitor Service Guide
Alignment Procedure
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n. Ctrl BD with panel grounding spring
3.Add Glue
a. C605

Q7T3(AUO Panel) LCD Monitor Service Guide
Alignment Procedure
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b. C603, C604, L606, L607
c. C615