Service Manual ViewSonic Q7b-3 Model No. VS11147 17” Color TFT LCD Display (Q7b-3_SM Rev. 1b Oct.
Copyright Copyright © 2006 by ViewSonic Corporation. All rights reserved. No part of this publication may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language or computer language, in any form or by any means, electronic, mechanical, magnetic, optical, chemical, manual or otherwise, without the prior written permission of ViewSonic Corporation.
TABLE OF CONTENTS 1. Precautions and Safety Notices 1 2. Specification 5 3. Front Panel Function Control Description 13 4. Circuit Description 19 5. Adjustment Procedure 24 6. Troubleshooting Flow Chart 45 7. Recommended Spare Parts List 53 8. Exploded Diagram and Exploded Parts List 60 9. Block Diagram 62 10. Schematic Diagrams 63 11.
1. Precautions and Safety Notices 1. Appropriate Operation (1) (2) (3) (4) (5) (6) (7) (8) (9) (10) Turn off the product before cleaning. Use only a dry soft cloth when cleaning the LCD panel surface. Use a soft cloth soaked with mild detergent to clean the display housing. Use only a high quality, safety approved AC/DC power cord. Disconnect the power plug from the AC outlet if the product will not be used for a long period of time.
(11) After installation of the TFT Module into an enclosure (LCD monitor housing, for example), do not twist or bend the TFT Module even momentarily. When designing the enclosure, it should be taken into consideration that no bending/twisting forces may be applied to the TFT Module from outside. Otherwise the TFT Module may be damaged. (12) The cold cathode fluorescent lamp in the LCD contains a small amount of mercury. Please follow local ordinances or regulations for disposal.
Handing and Placing methods Correct methods Only touch the metal frame of the LCD panel or the Incorrect methods Surface of the LCD panel is pressed by fingers and that front cover of the monitor, DO not touch the surfaceof may cause”mura” the POL Take out the monitor with cushions Taking out the monitor by grasping the LCD panel, that May cause”mura” ViewSonic Corporation Confidential - Do Not Copy 3 Q7b-3
Place the monitor on a clean and soft foam pad Placing the monitor on a foreign objects, that could scratch The surface of the "Panel" or cause "mura" The panel is placed facedown the lap,that may cause "mura" ViewSonic Corporation Confidential - Do Not Copy 4 Q7b-3
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2-4 POWER SUPPLY Internal Power Supply Input Voltage Range Input Frequency Range Short Circuit Protection Over Current Protection Leakage Current Efficiency Fuse Power Dissipation Max Input AC Current Inrush Current (Cold Start) FSP FSP035-1PI01ZT 90 to 264 VAC 47.5 to 63 Hertz Output can be shorted without damage 5.0 A typical at 12.0 VDC 3.5mA (Max) at 254VAC / 60Hz 80 % typical at 115VAC Full Load Internal and not user replaceable 36W(typ) 40W(max) 1.5 Arms @ 90VAC, 0.
2-5 ELECTRICAL REQUIREMENT Horizontal / Vertical Frequency Horizontal Frequency Vertical Refresh Rate Maximum Pixel Clock Sync Polarity 30 – 80 kHz 55 – 75 Hz. 135 MHz Independent of sync polarity. Timing Table Timing Analog @ 70 Hz, 31.
2-6 FRONT PANEL CONTROLS AND INDICATORS Front Panel Hardware Controls Power Switch (Front Head) Power Control, soft Power Switch. Power LED (Front Head) Green – ON Orange – Active Off Dark = Soft Power Switch OFF Front Panel Controls BUTTON ICON FUNCTION (Head; From left to right) BUTTON1 BUTTON2 BUTTON3 BUTTON4 BUTTON5 Reaction Time + SELECT(BACKWARD) SELECT(FORWARD) POWER ADJUST DOWN ADJUST UP OSD must fully appear within 0.
2-7 AUDIO INTERFACE (SPEAKER SPECIFICATION) SPEAKER SPECIFICATION LINE INPUT CONNECTION 3.5 MM STEREO JACK LINE INPUT SIGNAL 0.7 VRMS LINE INPUT IMPEDANCE 18 KOHM MAXIMUM POWER OUTPUT 1 W@ < 15 % DISTORTION (ELECTRIC) SIGNAL TO NOISE RATIO 50 DB FREQUENCY RESPONSE 200 HZ – 10 KHZ DISTORTION < 5 % THD (@1KHZ) THERE SHOULD BE NO AUDIBLE VIBRATION VIBRATION WITH VOLUME AT 100% AND TREBLE / BASS AT DEFAULT. THERE SHOULD BE NO AFFECT ON THE SCREEN IMAGE SCREEN IMAGE STABILITY UNDER ANY CONDITIONS.
2-8 TFT LCD PANEL Panel Characteristics: 1st Source Panel Model number CMO M170E5-L09 (17”) Type Active Matrix TFT, TN technology Pixel Arrangement RGB Vertical Stripe (0.264 mm Pixel Pitch) Glass Treatment Anti-Glare, Hard Coating (3H) # of Backlights 4 CCFL Backlight Life 50,000 Hrs (Typical)/40,000 Hrs (Min) Luminance (Center) 300 cd/m2 (Typical) /230 cd/m2 (Min) Brightness Uniformity 80% (Typical) / 75% (Min) Contrast Ratio 500 :1 (Typical) / 400 : 1 (Min) Color Depth 16.
2-9 IMAGE PERFORMANCE Display Size Horizontal Display Size, Primary Preset Full Screen Vertical Display Size, Primary Preset Full Screen Luminance Lv (Max) –Condition: Lv (Max) = The Luminance requirement of Brightness / Contrast = 100% section 2-6 “TFT LCD PANEL” Color Temperature = User (R/G/B=100) Lv (NATIVE) –Condition: Brightness = Default / Contrast = Default Lv (NATIVE) / Lv (Max) x 100% > 85% Color Temperature = NATIVE Lv (COOL) –Condition: Brightness = Default / Contrast = Default Lv (COOL) / L
2-10 MECHANICAL Desktop Dimension Monitor Weight Head Only / Wall Mount Dimension 375 mm (W) x 372 mm (H) x 160 mm (D) 14.8" (W) x 14.6" (H) x 6.3" (D) 4.2 Kg (9.3 lbs) Monitor Weight 375 mm (W) x 323 mm (H) x 56 mm (D) 14.8" (W) x 12.7" (H) x 2.2" (D) 3.9 Kg (8.
3. Front Panel Function Control Description 3.1 Functional Description of Controls a. User Control Panel b. Description of Key Functions No. Symbol ƒ Function 1. Show the mute OSD. 2. Decrease a function’s ( ) value. 3. Move to the next function ( 1. Show the volume OSD menu 2. Increase a function’s ( ) value. 3. Move to the next function ( Power indicator „ Turn the power on or off … 1. Show the main OSD menu 2. Select the next OSD icon down 1. Auto-adjust 2.
3.3 User Adjustment (At Analog Signal input) RGB Mode Hot Key Auto Adjuster Brightness Contrast H position V position Phase Clock Color OSD Slider Bar User Native Cool Warm Brightness Up Language Reset Exit Color Red Color Green Color Blue Brightness Down 3.4 Specification (at all Present Timing) a. BRT / CONT: Picture background shall become brighter with BRIGHTNESS at its MAX position, and shall become darker at its MIN position. Contrast of picture shall be changed by adjusting contrast value. b.
e. Recall : Recall include Brightness, Contrast, Volume, OSD Position, OSD Time, and execute Auto Adjust. f. Language: Users can choose one of the eight languages：English, French, German, Spanish and Italian, Russian, Tradition Chinese, Simplify Chinese. g. Power: Pushing Power button shall cause the monitor to be turned ON and LED to be illuminated. Pushing Power button again shall cause the monitor to be turned OFF and LED to be OFF. 3.5 Other User/Service Information a.
3.7 Brightness Uniformity and Contrast Ratio a. Brightness Uniformity: 128 640 1152 B C 102 A 512 E D Bmax - Bmin Bmax 922 Bmax = MAX (BA, BB, BC, BD, BE) Bmin = MIN (BA, BB, BC, BD, BE) Bave = AVE (BA, BB, BC, BD, BE) ≦ 20% b. Contrast Ratio: The contrast ratio is measured at point A and calculated by using the following formula Contrast ratio (CR) ＝ Luminance with all pixels in white Luminance with all pixels in black 3.8 Shipping Luminance a. Condition Input signal Controls Cont./Brt.
3.10 Black Level a. Gray Scale Condition Input signal: 32 Gray scale (Primary mode) Controls : CONT./BRT. primary setting, other shipping setting condition. b. Specification：Native (1) The first bar from black of gray scale pattern shall be cut off. (2) The last bar from the bright of gray scale pattern shall be discrimination. 3.11 Picture Quality a. Condition BRT : MIN. ~ MAX. CONT : MIN. ~ MAX. *Inspection of picture quality shall be made at the distance of 50 cm in front of LCD surface. b.
3.12 EDID DATA a. Condition : Maintain Mode b. Specification : FOR RGB DDC EDID 128 BYTES DATA STRUCTURE No. 00 08 0A 0C 10 11 12 14 Item Header ID Manufacturer Name ID Product Code ID Serial Number Week Of Manufacture Year Of Manufacture EDID Version,Revision Video Input Definition 15 16 17 18 19 23 Max. H. Image Size Max. V. Image Size Display Transfe Charac.
4. Circuit Description A. A/D converters The ADC is a 7-bit 4-channel analog-to digital converter ,the structure of these ADCS is 7-bit successive approximation ,analog voltage is supplied from external sources to the A/D input pins and the result of the conversion is stored In the 7-bit data latch registers(ADC0_REG~ADC3_REG).
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Pin description ViewSonic Corporation Confidential - Do Not Copy 21 Q7b-3
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5. Adjustment Procedure 1. Function test 1.1 products 17” LCD Monitor 1.2 test equipment (2-1). One PC (Windows system);two RS-232 PORT，COM1: signal resolution、COM2: color meter。 Print PORT: connection with IIC/RS-232 Adapter Board (2-2).Color Meter: MINOLTA. CA-110 is 21cm apart form the screen (eg: BM-7 distance is 50cm; Field = 2.0) (2-3). IIC/RS-232 Adapter Board (Set IIC Port) (2-4). (TOPCON BM-7 or CA110) will be upright with Monitor (2-5).
(5- 1).WBA.exe, enter the pattern as follow: (5- 2 ).at this time .pls press the open document as follow, choose the project document and press the open button, the pattern is as follow note: pls choose the related program depending on the model and panel of the product ( 5-3 ).
( 5-4 ).
(5-5 ). Pls select”(Set)”à”Color Temperature” setup the color temperature specification, the 7500K of the program is”SRGB”color temperature ,pattern as follow:advise the adjust tolerance will be ±3 ( 5-6 ). Pls select” Set”à”Color Analyzer” setup color analysis fixture Type,at present we can Use CA-110 and BM-7.
( 5-7 ).
( 5-9 ). Begin to adjust;pls press the tools menu Icon, Icon, at this time the program will go on the color temperature adjusting, refer to the pattern as follow. (6).when adjusting the color tempreture,after the auto adjust, you must save the document and then turn On the machine, test the color and temperature: 6500°K: x=0.313±0.015;y=0.329±0.015 9300°K: x=0.283±0.015;y=0.297±0.015 SRGB : x=0.313±0.015;y=0.329±0.015 (7).
2. Firmware and EDID upgrade/update Methods . MCU software written: 2-1. Used equipment: (1).one PC (Windows system),one Print PORT: connect withIIC/RS-232 Adapter Board (2). IIC/RS-232 Adapter Board(Set IIC Port) 2-2. applicable program operate: (1).execute Writer.exe to enter the pattern as follow (2).
(3) after opening the Hex document that you choose,pls select the NT68F633 (64K) (4) begin to load MCU software: after press” AUTO”, then at this time will be loading the MCU software,pls see the pattern as follow: 2. I/P 1280x1024 @75Hz CROSS TALK (PATTERN63) FH=79KHz,FV=75Hz 2-1.input the signal to D-SUB to execute AUTO ADJUSTING function，then CHECK the pattern whether have interaction noise.(if still have noise ,we can slightly adjust the clock or phase menu) 2-2.
3 Disassembly Procedure 1.Remove the hinge cover 2.Unscrew 8 pcs screws 3.
4. Insert plastic flake to hole ,and pull the flake along the gap between the bezel and housing, to separate the housing from bezel. 5.
6 7 Take out housing part; Remove 4pcs screw,take out ; shield cover ViewSonic Corporation Confidential - Do Not Copy 34 Q7b-3
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10 Unscrew 4pcs screw; 11 Take the power board up from the frame; ViewSonic Corporation Confidential - Do Not Copy 36 Q7b-3
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13.Take the power board up from the frame; 14.
push 2pcs hook forward ViewSonic Corporation Confidential - Do Not Copy 39 Q7b-3
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Frame 16.
17. Remove bezel from the panel; 18.
4 Packing Procedure 1.1 Paste production film to protect the monitor screen.(Figure 1) tape Production film 1.2 Put the monitor in the PE bag and seal bag with type (Figure 2) tape 1.3 Put the cushions on the monitor.
1.4 Put the base in the EPE bag. and then,place the base on the cushions ,as figure 1.5 Place the monitor into the carton and then put all accessories into carton .At last, close the carton.
6. Troubleshooting Flow Chart Main Procedure Start Connect all of devices to the LCD monitor Power On Is indicator LED light? A.
1 Is backlight on? No B. Backlight Troubleshooting Yes Display Performance O.K.? No C. Performance Troubleshooting No D. Function Troubleshooting No E. Audio Troubleshooting Yes Function Adjustment O.K.? Yes Audio Function O.K.
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B.
C.
2 Screen with noise or line bar? Yes Prss Reset Button from front panel control Yes End No Change Main Board No Screen is smaller? Yes Make sure relution is set at default No Yes Reset O.K.
D.
E. Audio Troubleshooting Start Make sure sound output, Audio cable is OK.
7. Recommended Spare Parts List RECOMMENDED SPARE PARTS LIST (Q7b-3) ViewSonic Model Number: VS11147 Serial No. Prefix: Q4A Item 1 2 3 4 5 6 7 8 Main Board Re. 1.3 For Innolux Panel Key Boardd LM1704R RGB+Audio Key Board LM/LM1704 Innolux Panel Power Board + Inverter Board Power Board + Inverter Board 2nd Source Power Board + Inverter Board for Innolux Panel Cabinets: Base Assembly 23 24 25 26 27 28 29 30 31 ViewSonic P/N Added on 10/19/06 Added on 10/19/06 Added on 10/19/06 Added on 10/19/06 ECN No.
BOM LIST (Q7b-3) ViewSonic Model Number: VS11147 Rev: 1a Serial No.
Item 88 89 90 91 92 93 94 95 96 97 98 99 100 101 ViewSonic P/N N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Ref. P/N D0155C5102B01 D01FH5V102F01 Y134RLZ5B1*A D0155C5614B01 J451322006211 J4527200146A1 L001300201311 L431047020K11 Q441120031161 R010331J10111 R011004J10111 R013601J10111 R070000J30111 R070750J30411 Description DIODE ZENER ZMM 55-C5V1 LL-34 (SMD) DIODE ZENER FHZ5V1 LL-34 Fenghua (SMD) ZENER DIODE RLZ5.1B SMD3515 DIODE ZENER ZMM55-C5V6 MINI-MELF BL(SMD) PIN HEADER 90° 2 x 3P PH:2.
BOM LIST (Q7b-3) "SVA Panel" ViewSonic Model Number: VS11147 Rev: 1b Serial No.
Item 73 74 75 76 77 78 79 80 81 ViewSonic P/N N/A N/A N/A N/A N/A N/A N/A N/A N/A 82 N/A 83 N/A 84 85 86 87 88 89 N/A N/A N/A N/A N/A N/A 90 N/A Ref. P/N C4022214M3232 C4022296M2122 C4024704M2242 D00BAV9905G01 D00L414803Y11 D01ZT52C03K01 J4509100085C1 J4509100306H1 J4527200164A1 Description CAP EC -40~105℃ 220UF /16V ±20%(M) Φ6.3*H7mm P=2.5mm (DIP) CAP EC -40℃~105℃ 2.2uF/25V ±20%(M) ψ4*H5mm P=2.
BOM LIST (Q7b-3) "Innolux panel" ViewSonic Model Number: VS11147 Rev: 1b Serial No. Prefix: Q4A Item ViewSonic P/N 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 E-00005762 E-00008013 DC-00005774 DC-00005754 N/A P-00005780 P-00005781 P-00006586 N/A N/A P-00005779 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A 24 25 26 27 28 29 30 31 32 33 34 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A 35 36 N/A N/A Ref.
Item 72 73 74 75 76 77 78 79 80 81 82 83 ViewSonic P/N N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Ref.
8. Exploded Diagram and Exploded Parts List EXPLODED PARTS LIST (Q7b-3) ViewSonic Model Number: VS11147 Rev: 1a Item 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 ViewSonic P/N N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A B-00005755 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Ref.
ViewSonic Corporation Model Title Date ViewSonic Corporation Confidential - Do Not Copy 76 Q7b-3 SILKSCREEN TOP Rev:
PACKING PART LIST ( Q7b-3 ) ViewSonic Model Number: VS11147 Rev: 1a Item 1 2 3 4 5 6 7 8 9 10 11 ViewSonic P/N P-00005779 P-00005780 P-00005781 CB-00005758 A-00005760 DC-00005774 N/A N/A C-00005778 N/A Ref.
9. Block Diagram VGA_IN R_IN B_IN G_IN HSI VSI R_IN+ G_IN+ B_IN+ HSI VSI Scaler R_IN G_IN B_IN HSI VSI RX0+/RX1+/RX2+/RXCK+/RX3+/- SDA EEPROM SDA 3.3V 1.8V Panel Interface RX0+/RX1+/RX2+/RXCK+/RX3+/- 5VA Power 12V PANEL_VCC 62 SCL 12V 1.8V DDC_VDD SCL Key Key_BUS 3.
10. Schematic Diagrams ADC_VAA C1 1 2 1 2 0.1uF ADC_GND D1 BAV99 3 CN1 VGA_HS 1 VGA_VS 3 CON_DET 5 SHIELD 7 DDC_SCL 9 DDC_SDA 11 DDC_5V 13 2 4 6 8 10 12 14 DB_B+ DB_B+ R1 100 R3 100 B_IN+ L1 B0805/80 DB_G+ C2 22pF DB_R+ L2 PIN HERAD 7X2 PH=2.0mm R2 75 DDC_VDD B_IN- B1206/600 ADC_GND + C3 ADC_VAA 47u/16V 1 2 0.1uF 1 DDC_SDA DDC_SCL 2 C4 DGND ADC_GND D2 BAV99 D4 5.6V SOGI 3 D3 5.
12V D15 BAT54C 3 3.3V R90 680 5VA D14 BAV99 D16 5.1V + R93 4.7k C101 47u/16V + 2 DDC_VDD 1 5VA MCU_VDD R94 4.7k R95 4.7k C16 100n DGND DGND MUTE DGND Q1 MMBT3904 1 3.3V R96 47k R21 4.7k R102 BL_EN R99 10k HSO C27 1u R98 47k R100 R101 10k 10k C18 100p C19 100p Q3 MMBT3904 1 DGND MUTE 41 42 43 44 1 2 3 40 PC3/PWM0 PC2 PC1* PC0* VCC PD0 PA0/PWM2 4 PD4 P35/T1 39 W/O Audio : R100= 0 Ohm , Other N.C.
3.3V 3.3V L5 B0805/600 ADC_VAA 1.8V + C37 47u/16V C38 0.1u C39 0.1u C40 0.1u C41 0.1u C42 0.1u C43 0.1u C44 0.1u C100 0.1u C23 + C47 47u/16V 33PF _(for 15"sva) C48 0.1U 0.1u C49 0.1u C50 0.1u C45 0.1u C51 0.1u C46 0.1u DGND DGND ADC_GND + C53 470u/16V 1.8V L7 B0805/1k C54 0.1u 3.
T5M/ARSRP1 T5P/ARSRN1 T6M/ARSRP2 T6P/ARSRN2 TCLK2M/ARSRP3 TCLK2P/ARSRN3 T7M/ARSCLK_P T7P/ARSCLK_N TCLK1M/ARSGP2 TCLK1P/ARSGN2 T3M/ARSGP3 T3P/ARSGN3 T4M/ARSRP0 T4P/ARSRN0 T5M/ARSRP1 T5P/ARSRN1 T6M/ARSRP2 T6P/ARSRN2 TCLK2M/ARSRP3 TCLK2P/ARSRN3 T7M/ARSCLK_P T7P/ARSCLK_N CN5 30PIN/1.
12V + C65 0.1u C64 470u/16V U5 TDA7496L 1 2 CN8 3 R61 18k C66 1u GND GND GND GND 20 19 18 L8 B0805/600 C67 L_IN 1 2 3 GND 4 INL OUTL 17 CN7 L_OUT + AUDIO IN GND 4 3 2 1 5 C68 100pF 2 5 4 3 2 1 PHONEJACK 3.5D 7 8 R63 18k C72 1u 10 C73 100pF 2 1 9 R64 47k VS 16 R_OUT 470u/16V C69 6 CN12 VAROUT_L + VOLUME VAROUT_R NC VS OUTR GND INR MUTE SVR STBY 15 14 L9 B0805/600 + R62 47k 3PIN/2.0mm 1 R_IN JST 4Pin PH=2.
1 R65 C76 1uF/0603 2 R66 1.2K 2K 2 4 6 1 3.3VP L11 47uH/1.5A Vin 2 Output 3.3V GND GND GND D10 SS14 C80 + C83 0.1u 470uF/16V L10 RH3.5x6x1.0W D11 3V6 1 1 8 7 2 6 C82 NC SD C81 0.1uF 5 + C79 470uF/16V L12 RH3.5x6x1.0w 4 PIN HEARD 3X2 PH=2.54mm C78 0.1u GND 3.3VP C77 0.1u 1 1 3 5 U6 AP1509 DGND DGND 3 L15 RH3.5x6x1.0W FB 12V CN9 R68 DGND DGND R67 0 100 DGND DGND DGND DGND C84 0.1u + DGND C85 100u/16V 2 DGND C86 0.1u 2 BL_EN C87 0.
CN13 1 2 3 4 5 6 7 8 SW1 TOUCH SWITCH 4P SW2 TOUCH SWITCH 4P SW3 TOUCH SWITCH 4P SW4 TOUCH SWITCH 4P SW5 TOUCH SWITCH 4P Menu/Down Auto/Up POWER Right/+ Left/- JST 8Pin PH=2.
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* Reader’s Response* Dear Readers: Thank you in advance for your feedback on our Service Manual, which allows continuous improvement of our products. We would appreciate your completion of the Assessment Matrix below, for return to ViewSonic Corporation. Assessment A. What do you think about the content of this Service Manual? Unit Excellent Good Fair Bad 1. Precautions and Safety Notices 2. Specification 3. Front Panel Function Control Description 4. Circuit Description 5. Adjustment Procedure 6.
