Q7T4-FP71G LCD Monitor Service Guide Alignment Procedure 1. Alignment procedure (for function adjustment)
A. Preparation: 1. 2. Setup input timing ICL-605( 1280x1024@75Hz ), 32-Grays pattern. 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) White Balance (Reddish, 5800K set on OSD) White Balance (sRGB, 6500K set on OSD) X+Y+X+Y+X+Y+0.283+(-) 0.03 0.297+(-) 0.03 0. 326+(-) 0.03 0. 342+(-) 0.03 0.313+(-) 0.03 0. 329 +(-) 0.03

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5. Setup input timing , 32 -Gray pattern. To check if there are any abnormal display problems of preset timing modes.
No. Check the following preset timings with General pattern: Mode H 720400 @ 70Hz 31.@ 60Hz 31.@ 75Hz 37.@ 60Hz 37.@ 75Hz 46.@ 60Hz 48.@ 75Hz 60.023 1152x864 @ 75Hz 67.@ 60Hz 63.@ 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 C3 C3 AA AA AA AA AA AA 3C 3D 3E 4C 4D 4E Data Data Data Data Data XX XX XX XX XX Data Data Data Data Data Data cksum cksum cksum cksum cksum cksum cksum cksum cksum cksum cksum cksum cksum cksum cksum cksum Write data to MCU RAM and update the related register to refresh the screen immediately. Dont store data to EEPROM.
Base on current color index to read back the right gain value.

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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 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 96 0~4 cksum Data cksum Data cksum

4=User, 5=Cx

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 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 AA AA AA A3 A3 A3 A3 A3 A3 A3 A3 A3 A3 A3 A3 A3 A3 A3 A3 A9A 9E 9F 3C 3D 3E 4C 4D 4E 5C 5D 5E 6C 6D 6E 7C 7D 7E 0~7 cksum Data cksum Data cksum 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 Reserved for some model have extra color temperature (Also Update MCU RAM)

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4. Wire Dressing and assembling concern

Prepare 1 panel

Assembly panel and main BKT

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Add 4 screw between panel and main BKT

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Add FFC

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Add Tape

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Assembly IF board and Power Board

11 Confidential

Assembly PCB module and main BKT

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Assembly IF board and FFC

13 Confidential

Add one tape

14 Confidential

Assembly lamp wire and Power Board

15 Confidential

Add one screw

16 Confidential

Add 5 screw

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Assembly main shielding and main BKT

18 Confidential

Add 2 screw

19 Confidential

Assembly control board wire and IF board

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21 Confidential

22 Confidential

Assembly Bezel and Rear Cover

23 Confidential

Add 4 screw

24 Confidential

Add 1 screw

25 Confidential

Assembly Base and Rear cover

26 Confidential

Finished

27 Confidential

28 Confidential

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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. Its an analog only interface LCD monitor with a 15 pins D-sub signal cable. its 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 Power

Interface board

Control board

D-Sub AC power in
Circuit operation theory: A-1.) Interface board diagram:

MTV312M 64(AJ)

Clock Generator

140MHz ADC

RTD 2023

12801024 LCM

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 IC 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

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 filter
Isolation power transformer

Inverter circuit

PWM controller

Switching element

LDO regulator

Feedback Isolation

#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

#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 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)

Fig. 7

A-3.) Control board introduction: The main parts of the control board are a push button, and a LED. (a) Push button: Its 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).

A-4.) Inverter diagram: 1.Block Diagram:

ON/OFF 15Vin switching

OSCILATOR CIRCUIT

TRANSFORMER

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
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.

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.

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.

CON10 2060089110

I _KEY KEY_EXIT KEY_LEFT BLU ORG KEY_ RIGHT KEY_MENU PW_SW LED301 BLU ORG A2 A1 BLU/ORG J

KEY_MENU

G2 G2 G2 G2 G2 G2

KEY_ RIGHT

KEY_LEFT

KEY_EXIT

I _KEY
LED use 06.3N5YG.14X; Key use 22.40069.431
Project Code 99.L1C72.001 Title
Model Name Q7T4 CTRL BOARD

OEM/ODM Model Name NA

Size PCB P/N <Size> 48.L1C03.S02
PCB Rev. Document Number S02 99.L1C72.000-C3-304-1 of Approved By DAVEN WU

R e v. 0

Date: Thursday, August 26, 2004 Sheet Prepared By Reviewed By ANGEL HU

ALLEN PC LEE

Q7T4-FP71G LCD Monitor Service Guide Engineering Specification

Table of Contents

1. Introduction 2. Operational Specification
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
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

4.1 The Physical definition & Technology summary of LCD panel... 9 4.2 Optical characteristics of LCD panel.... 9

5. User Controls

5.1 Users hardware control definition... 10 5.2 OSD control function definition.... 10
6. Mechanical Characteristics
6.1 Dimension..... 11 6.2 Weight.... 11 6.3 Plastic..... 11 6.4 Carton..... Confidential

7. Pallet & Shipment

7.1 Container Specification..... 12 7.2 Carton Specification..... 12 Product:.... 12 Package:..... 12
8. Certification Appendix: Physical Dimension Front View and Side view
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 AC power input DC power input (with AC power adapter) DPMS supported LED indicator for power status showed OSD for control & information supported Multi-language supported for OSD Buttons control supported 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

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.) Yes No Yes Yes Yes Yes Yes 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 1155 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
Item Input Voltage range Input Current range Power Consumption DPMS Inrush Current Earth Leakage Current Hi-Pot Power Line Transient Condition
Universal input full range 90 ~ 264VAC Normal On operation DPMS Off state 110 VAC 220 VAC 264 VAC/50Hz 1. 1500VAC, 1 sec 2. Ground test: 30A, 1sec IEC1000-4-4 IEC1000-4-5 (Surge)
90~264VAC /47~63Hz < 2.0 Arms < 40 W < 1 W in power preferred mode, 115V < 2 W, 230V < 30 A (peak) < 60 A (peak) < 3.5 mA Without damage < 0.1 ohm 1KV Common: 2KV, Differential: 1KV 3 mA ~8mA 40KHz ~ 80KHz Color: Black Length: 1500 +/- 50 mm

OK N.A

LED: Green LED: Amber Cold-start (on-line test) (in-lab test)
Panel Spec. 3.0 ~ 8.0mA rms Panel Spec. 40KHz ~ 80KHz
CCFL operation range CCFL Frequency Power cord

90 ~ 264VAC 90 ~ 264VAC

2.2 Signal interface

Item Signal Cable

24-pin DVI-D 15-pin D-sub connector 24-pin DVI-D connector Signal type Level Impedance Signal type

Condition

15-pin D-Sub
Color: Black Length: 1500 +/- 30 mm Color: Black Length: 2000 +/- 50 mm See Note-1 See Note-2 Separate analog R/G/B 700 mV (peak to peak) 75 Ohms +/- 1.5 Ohms Separate H/V-sync Composite H/V-sync (Positive/Negative) Logic High: 2.4V ~ 5.5V Logic Low: 0V ~ 0.5V (TTL level)

Minimum 2.2K(pull down)

For 15-pin D-sub For 24-pin DVI-D For 15-pin D-sub

Pin assignment

Video input
For 15-pin D-sub Refer to VESA VSIS Standard V1R1 10K for application

Remark DOS DOS DOS Macintosh VESA VESA VESA VESA VESA Macintosh VESA VESA VESA Macintosh VESA Macintosh SUN 66 SUN VESA IBM1 VESA SPARC2

Note-3: P, N stands for Positive, Negative polarity of incoming H-sync/V-sync (input timing).
Q7T4-FP71G LCD Monitor Service Guide Engineering Specification 3. Operational & Functional Specification 3.1 Video performance
Item Resolution Contrast ratio Brightness Response time Viewing angle CIE coordinate of White Display colors Condition
Any input resolution modes which are under 1280 x 1024 At R/G/B saturated condition Rising + Falling time At Contrast ratio = 10 At Contrast ratio = 10
1280 x 1024 450:1 (typ.) 260 cd/m (typ.) @ 7.5mA 16 ms (typ.) R/L: 70/70 degrees (typ.) U/D: 70/60 degrees (typ.) (0.31, 0.33) +/- (0.03, 0.03) 16.2M colors (RGB 6-bits + FRC data)

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/

3.3 Acoustical Noise

Item Acoustical Noise Condition
At 1 meter distance & Audio function disabled

40 dB/A

3.4 Environment
Item Temperature Humidity Altitude Condition
Operating Non-operating Operating Non-operating Operating Non-operating
0 ~ +40 -20 ~ +~ 90% 5 ~ 95% 0~3048m (10,000ft) 0~12,192m (40,000ft)
Non-condensing Non-condensing Without packing With packing

3.5 Transportation

Item Condition Spec (1) Sine wave
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.

(1) Vibration

Package, Non-Operating

(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:

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) Package, Non-Operating 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: <3ms Velocity accelerate: 75g

(2) Unpackaged Vibration

(3) Drop

(4) Shock

3.6 Electrostatic Discharge Requirements
Item Electrostatic Discharge Condition

IEC801-2 standard

Contact: 8KV Air: 15KV

3.7 EMC

Item TCO03
Magnetic FCC part 15J class B

Electric

Band 1 < 10 V/m Band 2 < 1 V/m Band 1 < 200nT Band 2 < 25nT After Mass production under 1dBuv for constant measure. Besides DNSF and VCCI class-2 are optional.

EN55022 class B

3.8 Reliability
Item MTBF Prediction CCFL Life time Condition
Refer to MIL-217F At 252, under 7.0mA
> 60,000 Hours 50,000 Hours (typ.)
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.
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
1 Wrms/CH @ 1KHz <1% >40dB 8 ohm 2 W/CH 180~20KHz SPL-10dB dB (1W 0.5M) 62x33cx20 mm~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
AUO M170EG01 V1 432mm(17.0) Unit=mm Unit=mm Unit=gram Unit=mm 337.920(H) x 270.336(V) 358.5(H) x 296.5(V) x 17.0 (D) (typ.) 1900 (typ.) TN type 0.264 x 0.264 R/G/B vertical stripe Normally white 16.2M colors (RGB 6-bits + FRC data)

Per one triad

4.2 Optical characteristics of LCD panel
Item Viewing Angle Contrast ratio Response Time Color / Chromaticity

[msec] [msec] [msec]

[degree] [degree] [degree] [degree]

Conditions

Horizontal (Right) CR = 10 (Left) Vertical (Up) CR = 10 (Down) Normal Direction Rising Time Falling Time Rising + Falling Red x Red y

250 0.61 0.31

0.64 0.34

25 0.67 0.37

Coordinates (CIE)
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 0.210 0.29 0.61 0.14 0.07 0.31 0.260 0.32 0.64 0.17 0.10 0.34 0.36 1.5
Color Coordinates (CIE) White Luminance Uniformity White Luminance @ CCFL 7.5mA (center) Crosstalk (in 75Hz)

[%] [cd/m2] [%]

* The test methods for the above items definition, please refer to the relative panel specification.
5. User Controls 5.1 Users 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 Auto Adjust Brightness Contrast Horizontal Position Vertical Position Pixel Clock Phase Color OSD Position OSD Time Language Recall Mode Selection Condition Spec

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
Input Select Sharpness Display Information Volume Mute Hot key for Brightness Hot key for Contrast Hot key for Volume Hot key for Mode
D-sub DVI 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 Monitor without Stand Monitor with Stand Carton Box (outside) Tilt and Swivel range Condition
L x W x H mm L x W x H mm L x W x H mm
339.84 x 272.24 mm 323.75*378*60.5mm 362*378*135.31 mm 456(L)*423(W)*114(H) Tilt: -5 ~ +20 degree Swivel: 0 degrees

6.2 Weight

Item Monitor (Net) Monitor with packing (Gross) Condition Spec

3.8 Kg 5.7 Kg

6.3 Plastic
Item Flammability Heat deflection To UV stability Resin Texture Color Condition

ABS ABS

94-HB 65 Delta E < 8.0 MPRII: ABS (VW55/VE0856/D350) MT-11020 BCS-Y5003A
Bezel texture MT-11000 Bezel painting T8020C
Q7T4-FP71G LCD Monitor Service Guide Engineering Specification 6.4 Carton
Item Color Material Compression strength Burst Strength Stacked quantity Condition Spec
Kraft B Flute 288 KGF 16 KGF/cmLayers
7. Pallet & Shipment 7.1 Container Specification

Stowing Type Container

Quantity of products (sets) (Every container)
Quantity of Products (sets) (Every Pallet)
Quantity of pallet (sets) (Every Container)

1080 2520

Pallet A: 90 Pallet B: 72 Pallet A: 90 Pallet B: 72 X X X X
Pallet A: 12 Pallet B: 12 Pallet A: 14 Pallet B: 14 X X X X

With pallet

Without pallet

7.2 Carton Specification

1 RX0+

AT24C02A R RX1M R R 29 4.7K D D C _WP_D
TP19 TP20 TP21 TP22 TP23 TP24 Hot- Plug R 30 10K
1 DVI_SCL DVIPC5V DVI_SDA RXC+ RXC3.3V_MCU RX1-

RX2M 3.3V_MCU

2022009024 1

D6 6.2V 1

D7 6.2V
Project Code 99.L1C72.001 Title Size P CB P/N <Size> 48.L1C01.S02
Model Name Q7T4 INTERFACE BOARD
PC B Rev. Document Number S02 99.L1C72.000-C3-304-of 6 Ap proved By D AV EN WU

Re v. 1

Date: Thursday, July 29, 2004 Prepared By AN GEL HU
Sheet R eviewed By ALLEN PC LEE
Delete FB1, C20; FB2, C25 ; 6/16 change FB3,FB4,FB5 from 0805 to 0603

C 17 3.3V_MCU

R 3.3DVCC F B220 OHM C 35 0.1U C 36 0.1U C 37 0.1U C 38 0.1U C 39 0.1U C 40 0.1U C 41 0.1U

18P J C 18

Y1 24.576MHZ

R 3.3DVCC

R 2.5DVCC
2.5V Power 2.5V Power 2.5V Power 2.5V Power
3.3V Ground 3.3V Ground 3.3V Ground 3.3V Ground 3.3V Ground 3.3V Ground 3.3V Ground
XO R 3.3DVCC TMDS_VCC C 21 0.1U C 22 0.1U
2.5V Ground 2.5V Ground 2.5V Ground 2.5V Ground
3.3V Power 3.3V Power 3.3V Power 3.3V Power 3.3V Power 3.3V Power 3.3V Power
C 34 22U 25V <Spec>
18P J R 3.3DVCC BLUE+ BLUEGREEN+ GREENR ED+ R EDAD C _VCC C 24 0.1U 40 H S YN C V SYN C 42 43
XO XI DPLL_VDD APLL_VDD DPLL_GND APLL_GND PLL_TEST1 PLL_TEST2
TCON[12]/COUT/PWM2 PWM0/REFCLK TCON[13]/COUT/PWM2 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] BG3N BG3P BCLKN BCLKP BB1N BB1P BB2N BB2P BB3N BB3P

VOL_ADJ + C 19 4.7U 25V

+ 2 C 23 4.7U 25V

C 26 0.1U

C 27 0.1U

C 28 0.1U

C 29 0.1U R 38 4.7K R 39 1K RX2P RX2M RX1P RX1M RX0P RX0M RXCP RXCM
TMDS_TST/PWM1 EXT_RES RX2P RX2N RX1P RX1N RX0P RX0N RXCP RXCN TMDS_VDD TMDS_VDD TMDS_VDD TMDS_VDD TMDS_GND TMDS_GND TMDS_GND TMDS_GND B+ BSOG/ADC_TEST G+ GR+ RADC_VDD ADC_VDD ADC_VDD ADC_REFIO ADC_GND ADC_GND ADC_GND ADC_GND AHS AVS SCLK SDIO[0] TCON[4]/SDIO[1] TCON[3]/SDIO2] TCON[2]/SDIO[3]/PWM2 SCSB RESET#

TMDS_VCC

RTD2523
+2.5V F B220 OHM C 43 0.1U C 44 0.1U C 45 0.1U
AG3N/TEAN AG3P/TEAP ACLKN/TEBN ACLKP/TEBP AB1N/TECN AB1P/TECP AB2N/TECLKN AB2P/TECLKP AB3N/TEDN AB3P/TEDP BR1N/TOAN BR1P/TOAP BR2N/TOBN BR2P/TOBP BR3N/TOCN BR3P/TOCP BG1N/TOCLKN BG1P/TOCLKP BG2N/TODN BG2P/TODP
RXOIN0RXOIN0+ RXOIN1RXOIN1+ RXOIN2RXOIN2+ RXOCKINRXOCKIN+ RXOIN3RXOIN3+ RXEIN0RXEIN0+ RXEIN1RXEIN1+ RXEIN2RXEIN2+ RXECLKRXECKIN+ RXEIN3RXEIN3+

C 42 22U 25V <Spec>

C 46 0.1U

3.3V_MCU F B220 OHM C 31 0.1U C 32 0.1U C 33 0.1U

AD C _VCC

125 126
C 30 22U 25V <Spec>

RESET RTD_RESET

R 40 R 41
RTD_SCLK RTD_SDO/SDI S DIO1 S DIO2 S DIO3 RTD_SCSB
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
DDCSDA DDCSCL DDCSDA2 DDCSCL2

R 67 4.7K

D SUB_SDA D SUB_SCL
delete RN1, add R65 R66;Delete RN2 Add R67; R35: Delete R65,R66 0615
delete RN4,RN5,RN6,RN8; Q1,R44,C49,R46,R47
I - KEY RTD_SCSB PANEL_ON D-detect PW _SW KE Y_MENU 3.3V_MCU 3.3V_MCU 1

C 47 0.1U 3 4

U4 A0 A1 A2 GND VCC WP SCL SDA 6 5
**C50 close to scaler, R43 close to MCU.

R 42 4.7K

R 43 4.7K

SC L SD A

DA0/P5.0

DA1/P5.1

DA2/P5.2

DA3/P5.3

DA4/P5.4
C 48 0.22U K R 45 4.7K 11 RST VDD P6.3/AD3 VSS X2 X1

DA5/P5.5

RESET 3.3V_MCU 3.3V_MCU
R 68 DA8/HLFHO DA9/HALFV 29 K EY_RIGHT L ED_ORG LE D_GRN BL_ON VOL_ON DSUB_SCL 3.3V_MCU D D C _ WP_D D D C_WP_A 4.7K 3.3V_MCU

AT24C04N-10SI-2.7

HBLANK/P4.1 VBLANK/P4.0 DA7/HCLAMP
C 50 6.8P J Y2 12MHZ SD A SC L D D C _WP_A

SOCKET P/N: 22.10079.044

DA6/P5.6 P6.7/DA13 P6.6/DA12

C 51 6.8P J

ISDA/P3.4/T0 ISCL/P3.5/T1 STOUT/P4.2 P6.2/AD2/HLFHI HSDA/P3.1/Txd P1.0 P3.2/INT0 P6.1/AD1 P6.0/AD0 MTV312MV64
P6.5/DA11 P6.4/DA10 HSCL/P3.0/Rxd

D D C _ WP_D

UGND GND VIN

VOUT 3

D SUB_SDA RTD_SDO/SDI SDIO1 SDIO2 SDIO3 RTD_SCLK KEY_LEFT KEY_EXIT A-detect RTD_RESET
C 54 100P 50V J C 55 100P 50V J TP25 TP26 J12 L4 Z30 TP27 LOHM TP28 TP29 TP31

C 52 0.1U

G950T65U

C 53 0.1U

BL_ON +5V 3.3V_MCU VOL_ON
VOL_ADJ 3.3V_MCU 3.3V_MCU

2072060206

C 58 C 64 220P J R 220 0.1U

C 0.1U

+ C 56 22U 25V

1 + C 57 22U 25V

C 61 0.1U

C 62 0.1U

C 63 0.1U
2 L ED_ORG L ED_ORG R 48 10K 2N3906 Q2

LE D_GRN

2N3906 Q3 R 51

C 65 0.1U

C 66 0.1U J4 TP32 TP33 TP34 TP35 TP36 TP37 TP38 TP39 TP2060091109 R 52 0

Check Flash Rom or replace it
Does crystal work correctly? Yes
Check crystal CKT or replace it
Is interface BD normally? Yes

Replace interface BD

Replace panel

2. BUTTON function:

2.1 Control Board

OSD is not working Yes

Is control BD connecting?
Plug control BD then retry
Is bottom switch normally?
Replace control BD then retry
No Replace Control BD Is OSD working??

No Check Interface BD

3. OSD function:

OSD doesnt work

Is control BD working?

Replace control BD

Check interface BD

4. Power Board

Backlight didn't shine
Y Replace Q761 IC801 PIN 9 IS 15V? N N Plug CN701 again or checking I/F BD PWM existed? (BLT_ADJ) Y N Plug CN601 again or checking PW BD Turn on level existed? (BLT_ON) Y N Insert them again Check CN801, CN802 was pluged properly? Y
Y LED shined? N Y 3.3V existed? Y Replace new fuse N IS I/F board connected? N
Replace new fuse Y Check IC701 OK? Replace IC701
N Replace IC801,Q805 Checking F601 Broke? N Y Replace new fuse
Y Check IC601 Vcc existed? N
Replace IC601,Q602,Q603 R602
Replace IC602, IC702,D701 or check I/F BD
BENQ LCD Q7T4(FP71G) Spare Parts List

P/N: 99.L1C72.ASE

ITEM DESCRIPTION
PART NO. 55.L1C01.001 71.02023.00E 72.02402.C01 72.02404.N01 74.95065.03C 71.31264.A03 55.L1C02.001 55.L1C03.001 56.91L83.011 60.L1C01.001 60.L1C02.001 60.L1C03.001 44.L1C01.001 47.L1C01.001 47.L1C02.001 50.L9005.501 53.L1C01.001 60.L1C04.001

LOCATION

PCBA I/F BD MI AUO M170EG01 IC CONTROLER RTD2023 QFP 128P IC EEPROM AT24C02N-10SI-1.8SON IC EEPROM AT24C04N-10SI-2.7SON IC VR G950T65U SOT-223 IC FLASH MTV312MV64 (AJ) PLCC44 PCBA SPS BD MI QT74 EG01 PCBA CTRL BD MI Q7T4 LCDM 17 M170EG01 V.1 AUO ASSY FC ABS 8020C Q7T4 ASSY RC ABS 5003A Q7T4 ASSY BASE-CLUM ABS 5003A Q7T4 CTN B 456*423*114 Q7T4/BENQ CSN BTM EPS Q7T4 CSN TOP EPS Q7T4 CABLE SIGNAL 15/15P CORE*1 1.5M CD MANUAL Q7T4 ASSY BASE ABS 5003A Q7T4

U3 U1 U4 U6 U5

* THIS PARTS LIST MAY BE SUBJECT TO CHANGE WITH PRIOR NOTICE BY CSD OF BENQ.

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