ViewSonic VX712 Service Manual
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ViewSonic VX712 Service Manual

17” color tft lcd display
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Service Manual

ViewSonic VX712
Model No VS10057
17" Color TFT LCD Display
Manufacture Date: Dec-20-05
- 1 –
ViewSonic Corporation
VX712
Confidential - Do Not Copy

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Summary of Contents for ViewSonic VX712

  • Page 1: Service Manual

    Service Manual ViewSonic VX712 Model No VS10057 17” Color TFT LCD Display Manufacture Date: Dec-20-05 - 1 – ViewSonic Corporation VX712 Confidential - Do Not Copy...

  • Page 2: Revision History

    Further, ViewSonic reserves the right to revise this publication and to make changes from time to time in the contents hereof without obligation of ViewSonic to notify any person of such revision or changes.

  • Page 3: Table Of Contents

    6. Troubleshooting Flow Chart 7. Recommended Spare Parts List 8. Different Part List 9. Exploded Diagram And Spare Parts List 10.Disassemble Process 11. Block Diagram 12. Schematic Diagram 13. PCB Layout Diagram - 3 – ViewSonic Corporation VX712 Confidential - Do Not Copy...

  • Page 4: Precautions And Safety Notices

    3. Keep wires away from high voltage, high temperature components and sharp edges. 4. Keep wires in their original position so as to reduce interference. 5. Usage of this product please refer to also user’s manual. - 4 – ViewSonic Corporation VX712 Confidential - Do Not Copy...
  • Page 5 “Mura.” not touch the surface of the polarizer. Taking out the monitor by grasping the LCD Take out the monitor with cushions panel. That may cause “Mura.” - 5 – ViewSonic Corporation VX712 Confidential - Do Not Copy...
  • Page 6 “Mura.” Place the monitor on the lap, the panel The panel is placed facedown on the lap. That surface must be upwards. may cause “Mura.” - 6 – ViewSonic Corporation VX712 Confidential - Do Not Copy...

  • Page 7: Specification

    Storage: -20°C to +60°C Audio Input 1 x 2 Watts Energy Star compliant VESA Power Management DPMS compatible <1 W Input Voltage : 90V~264V Power Consumption: 40 Watts(Max.) 35 Watts(Typ.) - 7 – ViewSonic Corporation VX712 Confidential - Do Not Copy...
  • Page 8 Horizontal sync (Composite sync) Vertical sync (SCL) SIGNAL LEVEL CONNECTOR SIGNAL DESCRIPTION （VIDEO） vp-p Green （VIDEO） vp-p Blue （VIDEO） vp-p H/Sync TTL positive or negative V/Sync TTL positive or negative DDC1/2B DDC1/2B - 8 – ViewSonic Corporation VX712 Confidential - Do Not Copy...
  • Page 9 TMDS positive differential input, channel 0 Logic Ground Reserved 20 Reserved. No connection Reserved 21 Reserved. No connection Logic Ground RXC+ TMDS positive differential input, reference clock RXC- TMDS negative differential input, reference clock - 9 – ViewSonic Corporation VX712 Confidential - Do Not Copy...
  • Page 10 3. Front Panel Function Control Description Main Menu with OSD controls Front Control Panel shown below in detail - 10 – ViewSonic Corporation VX712 Confidential - Do Not Copy...
  • Page 11 ． If necessary, make small adjustments using H. Position and V. Position until the screen image is completely visible. (The black border around the edge of the screen should barely touch is illuminated “active area” of the LCD display.) - 11 – ViewSonic Corporation VX712 Confidential - Do Not Copy...
  • Page 12 Enabling the sRGB setting will cause the Contrast and Brightness adjustments to be disabled. 9300K — Adds blue to the screen image for cooler white (used in most office setting with fluorescent lighting). - 12 – ViewSonic Corporation VX712 Confidential - Do Not Copy...
  • Page 13 Information displays the timing mode (video signal input) coming from the graphics card in the computer, the LCD model number, the serial number, and ® the ViewSonic website URL. See your graphics card’s user guide for instructions on changing the resolution and refresh rate (vertical frequency).
  • Page 14 “15 second” setting, if a control is not pushed within 15 seconds, the display screen disappears. OSD Background allows you to turn the OSD background On or Off. - 14 – ViewSonic Corporation VX712 Confidential - Do Not Copy...
  • Page 15 720x400 or 640x400 mode White Balance. (Not shown on user’s guide) Power Lock OSD Lock Factory Mode Remark : All the short cuts function are only available while OSD off. - 15 – ViewSonic Corporation VX712 Confidential - Do Not Copy...

  • Page 16: Circuit Description

    The main board contains panel control logic, brightness control logic, DDC and DC convert DC circuit and so on. PWPC board Audio board Backlight and Panel RTD2523 EPROM EPROM EPROM Keyboard - 16 – ViewSonic Corporation VX712 Confidential - Do Not Copy...
  • Page 17 Start Circuit R903, R904,R905 CN902 Over Control IC Voltage Protect ON/OFF OSC and MOSFET DC Convert Output Q203 Circuit Circuit Lamp Over ON/OFF Feedback Voltage Control Circuit Control IC - 17 – ViewSonic Corporation VX712 Confidential - Do Not Copy...
  • Page 18 8 even-odd signal SDIO[0] Serial control I/F data in/Parallel port data[0] SDIO[1]/TCON[4]/BBLU[0] Parallel port data[1]/TCON[4]/TTL BBLU[0] SDIO[2]/TCON[3]/BBLU[1] Parallel port data[2]/TCON[3]/TTL BBLU[1] SDIO[3]/PWM2/TCON[2] Parallel port data[1]/TCON[4]/PWM2 SCLK Serial control I/F clock - 18 – ViewSonic Corporation VX712 Confidential - Do Not Copy...
  • Page 19 It includes an 8051 CPU core, 768-byte SRAM, 4 channels of 6-bit ADC, 3 external counters/timers, 6 channels of PWM DAC, VESA DDC interface, and a 64K-byte internal program Flash-ROM memory. - 19 – ViewSonic Corporation VX712 Confidential - Do Not Copy...
  • Page 20 - 20 – ViewSonic Corporation VX712 Confidential - Do Not Copy...
  • Page 21 General purpose I/O (CMOS) /6-bit ADC channel 3 P6.3/AD3 input P6.4 General purpose I/O (CMOS) P6.5 General purpose I/O (CMOS) P6.6/CLKO1 General purpose I/O/CLKO1 (CMOS) P6.7 General purpose I/O (CMOS) VSYNC VSYNC input - 21 – ViewSonic Corporation VX712 Confidential - Do Not Copy...
  • Page 22 TDA7496L(U201): The TDA7496L is a stereo 2W+2W class AB power amplifier assembled in the @ Powerdip, driving speakers as low as 8 . The function of each pin and the inside circuit diagram are as follows: Block Diagram - 22 – ViewSonic Corporation VX712 Confidential - Do Not Copy...
  • Page 23 Increasing the resistance will decrease the Setting current source and reduce the switching frequency,. A 26k Ω resistor R1 creates a 50uA constant current L1 and generates 65kHz switching frequency. - 23 – ViewSonic Corporation VX712 Confidential - Do Not Copy...
  • Page 24 Power supply Power Supply. The totem-pole output driver for the power MOSFET. A soft GATE Driver Output driving waveform is implemented to improve EMI. Block Diagram - 24 – ViewSonic Corporation VX712 Confidential - Do Not Copy...
  • Page 25 Positive input for error amplifier Output 1 dead time/soft start 1DTC 2IN- Positive input for error amplifier setting 1OUT Output 1 Timing latch setting Ground Reference voltage output (2.5v) - 25 – ViewSonic Corporation VX712 Confidential - Do Not Copy...

  • Page 26: Adjustment Procedure

    5400 color temp. parameter is Wx = 0.335±0.03;Wy = 0.350 ±0.03; Y = 250 ±20 cd/m D、MEM.CHANNEL10 ( SRGB color): 6500 color temp. parameter is Wx = 0.313±0.03;Wy = 0.329 ±0.03; Y = 220 ±20 cd/m - 26 – ViewSonic Corporation VX712 Confidential - Do Not Copy...
  • Page 27 3.)Into factory mode of VX712 A、First Power off, then press Switch 2 button along with press Power button will activate the factory mode, then MCU will do AUTO LEVEL automatically. Meanwhile press MENU the OSD screen will located at LEFT TOP OF PANEL.
  • Page 28 2).Change to each mode in turn and wait for the monitor finish auto-alignment and save press before change to next mode. 3).Until all of modes are adjusted,exit OSD menu and press POWER OFF to exit factory mode. - 28 – ViewSonic Corporation VX712 Confidential - Do Not Copy...
  • Page 29 640 x 480 @ 60Hz, 31.5kHz 640 x 480 @ 67Hz, 35.0kHz 640 x 480 @ 72Hz, 37.9kHz 640 x 480 @ 75Hz, 37.5kHz 640 x 480 @ 85Hz, 43.27kHz - 29 – ViewSonic Corporation VX712 Confidential - Do Not Copy...
  • Page 30 Dead Pixel/Line pixels should Screen compliant with the spec. The screen must have White Balance White & Black Pattern the pure white and black Figure 9 pattern, no other color. - 30 – ViewSonic Corporation VX712 Confidential - Do Not Copy...
  • Page 31 Fine Line Morie Pattern (Figure1) Gray Scale Pattern (Figure2) Horizontal & Vertical Thickness Pattern R. Color Pattern (Figure 4) (Figure 3) G. Color Pattern (Figure 5) B. Color Pattern (Figure 6) - 31 – ViewSonic Corporation VX712 Confidential - Do Not Copy...
  • Page 32 Test Pattern: Burn In Mode (Refer to Chapter III-3. Hot Keys for Function Controls) Make sure the F/W is the latest version. Test Pattern: EDID program Make sure it can pass test program. - 32 – ViewSonic Corporation VX712 Confidential - Do Not Copy...
  • Page 33 - Make sure there is audio output. - Make sure that audio function (volume 80%) is working without noise and resonance. - Make sure that the sound of right and left speakers are in balance. - 33 – ViewSonic Corporation VX712 Confidential - Do Not Copy...
  • Page 34 When you receive the returned monitor, please check whether the firmware version is the latest. If not, please do the following procedures to upgrade it to the latest version. 1 Equipment Needed - VX712 Monitor - Fixture for Firmware Upgrade - VGA Cable (P/N: 42.59901.003) *1(Pin 4, 11 should be connected to GND) - PC (Personal Computer) - LPT Cable (P/N: 42.59906.001) *1...
  • Page 35 2 Setup Procedure 2.1 Connect P2 of Fixture with printer port of PC by LPT Cable. 2.2 Connect P1 of Fixture with VX712 Monitor by VGA Cable. 2.3 Connect Power Cord to VX712 Monitor. 2.4 Connect P3 to the Signal Generator (eg.Chroma2326) for verifying it after the operation being completed.
  • Page 36 3.1.2 After extracting the zip file, the total files list as Fig 3.1, and double click the file of setup.exe to install. Fig 3.1.2 3.1.3 Press “Next” button to continue, see Fig 3.1.3. Fig 3.1.3 - 36 – ViewSonic Corporation VX712 Confidential - Do Not Copy...
  • Page 37 3.1.4 Keep default setting or press “Change” button for selecting the path that you want, and then press “Next” button to continue, see Fig 3.1.4. Fig 3.1.4 3.1.5 Press “Install” button to continue, see Fig 3.1.5 Fig 3.1.5 - 37 – ViewSonic Corporation VX712 Confidential - Do Not Copy...
  • Page 38 3.1.6 The Installer Information shows package warning, press “Ignore” button to continue, see Fig 3.1.6. Fig 3.1.6 3.1.7 Installation has finished, press “Finish” button, see Fig 3.1.7. Fig 3.1.7 Step 2. ISP security code setting. - 38 – ViewSonic Corporation VX712 Confidential - Do Not Copy...
  • Page 39 (default setting), see Fig 3.2.1. Fig 3.2.1. 3.2.2 Press “Create Security File” button to key in security code. Adjusting bar to decrease speed of IIC bus, see Fig 3.2.2. Fig 3.2.2. - 39 – ViewSonic Corporation VX712 Confidential - Do Not Copy...
  • Page 40 94, 94, AC, CA, Fig 3.2.3 Step 3. Let VX712 set to be connected with AC cable and VGA cable. Step 4. Use ISP to program MCU. 4.3.1 Select MTV type first, load the binary or Intel hex file that you want to program into the MCU, and select “Auto”...
  • Page 41 “Check MCU CRC OK” Fig 4.3.1 Step 5. Unplug and replug power cord of VX712 set and then check the OSD operation and image on srceen. Step 6. At last, do “Memory Recall.” - 41 – ViewSonic Corporation VX712 Confidential - Do Not Copy...
  • Page 42 3.2 Setup Procedure 3.2.1 Connect P2 and P4 of Fixture with VGA ports of VX712 by VGA Cable. 3.2.2 Connect P3 of Fixture with DVI port of VX712 by DVI-DVI Cable. 3.2.3 Connect P1 of Fixture with Printer port of PC by LPT Cable.
  • Page 43 3.3 DDC Key In Procedure Sep1.Select and execute DDc Key In program - 43 – ViewSonic Corporation VX712 Confidential - Do Not Copy...
  • Page 44 Sep2:Inpute the S/N and execute “Enter” - 44 – ViewSonic Corporation VX712 Confidential - Do Not Copy...
  • Page 45 - 45 – ViewSonic Corporation VX712 Confidential - Do Not Copy...
  • Page 46 Sep3:Key the “Enter” and write the data - 46 – ViewSonic Corporation VX712 Confidential - Do Not Copy...
  • Page 47 Sep4:If ddc program OK and show “data compare ok” - 47 – ViewSonic Corporation VX712 Confidential - Do Not Copy...
  • Page 48 5.7 Packing For Shipping - 48 – ViewSonic Corporation VX712 Confidential - Do Not Copy...
  • Page 49 MONITOR T782KKWHBDVWABP EPE COVER 45G 88609 B PE BAG 45G 88607 44G3734 1 44G3734 2 AUDIO CABLE 89G 173 56 31 POWER CORD 89G404A18N LS SIGNAL CABLE 89G 728HAA902 - 49 – ViewSonic Corporation VX712 Confidential - Do Not Copy...

  • Page 50: Troubleshooting Flow Chart

    6. Troubleshooting Flow Chart - 50 – ViewSonic Corporation VX712 Confidential - Do Not Copy...

  • Page 51: Recommended Spare Parts List

    7. Recommended Spare Part List （VX712 BOM list——T782KKWHBDVWABP） ViewSonic Universal Item Ref. P/N Description Location Q'ty number# AUPC780B3P AUDIO BOARD CBPC780KKWVWP CONVERSION BOARD KEPC780KK9P KEY BOARD PWPC1742HDV2P POWER BOARD 1 LV82 WOODEN PALLET 0.025 11G6054 1 PIN CONNECTOR 12G 394600...
  • Page 52 M1G 140 6120 SCREW M4X6 M1G 140 8120 SCREW M4X8 M1G 330 6128 SCREW M1G1030 6128 SCREW M1G1140 6120 SCREW M1G1730 6128 SCREW M1G1730 6128 SCREW M1G2130 4 47 SCREW - 52 – ViewSonic Corporation VX712 Confidential - Do Not Copy...
  • Page 53 CHIPR 20KOHM +-5% 1/10W R210 61L0603203 CHIPR 20KOHM +-5% 1/10W R211 61L0603204 200K 0603 R202 65G0805101 31 CHIP 100PF 50V NPD 0805 C211 65G0805101 31 CHIP 100PF 50V NPD 0805 C212 - 53 – ViewSonic Corporation VX712 Confidential - Do Not Copy...
  • Page 54 IC M24C02-WMN6TP U107 56G1133 56 IC M24C16-WMN6TP U105 56G113334A IC EEPROM 24LC02B/SNG SO U106 56G113334A IC EEPROM 24LC02B/SNG SO U107 57G 417 4 PMBS3904/PLILIPS Q101 57G 417 4 PMBS3904/PLILIPS Q103 - 54 – ViewSonic Corporation VX712 Confidential - Do Not Copy...
  • Page 55 CHIPR 100OHM +-5% 1/10W R195 61L0603101 CHIPR 100OHM +-5% 1/10W R196 61L0603101 CHIPR 100OHM +-5% 1/10W R206 61L0603101 CHIPR 100OHM +-5% 1/10W R207 61L0603101 CHIPR 100OHM +-5% 1/10W R209 - 55 – ViewSonic Corporation VX712 Confidential - Do Not Copy...
  • Page 56 CHIP 4.7KOHM +-5% 1/10W R122 61L0603472 CHIP 4.7KOHM +-5% 1/10W R125 61L0603472 CHIP 4.7KOHM +-5% 1/10W R126 61L0603472 CHIP 4.7KOHM +-5% 1/10W R142 61L0603472 CHIP 4.7KOHM +-5% 1/10W R143 - 56 – ViewSonic Corporation VX712 Confidential - Do Not Copy...
  • Page 57 C116 65G0603104 32 CHIP 0.1UF 50V X7R C117 65G0603104 32 CHIP 0.1UF 50V X7R C119 65G0603104 32 CHIP 0.1UF 50V X7R C120 65G0603104 32 CHIP 0.1UF 50V X7R C126 - 57 – ViewSonic Corporation VX712 Confidential - Do Not Copy...
  • Page 58 C154 65G0603473 32 CHIP 47NF 50V X7R C155 65G0603509 31 CHIP 5PF +-0.5PF 50V NPO C131 65G0603509 31 CHIP 5PF +-0.5PF 50V NPO C132 71G 56Z601 2.0X1.2 100M=600OHM L103 - 58 – ViewSonic Corporation VX712 Confidential - Do Not Copy...
  • Page 59 D103 93G 64 36 ST DIODE ESDA5V3L SOT-23 ZD101 93G 64 42 P BAV70 DIODE D102 93G 64 42 PP DIODE BAV70 SOT-23 D102 93G 6433P BAV99 SOT-23 D104 - 59 – ViewSonic Corporation VX712 Confidential - Do Not Copy...
  • Page 60 56G 139 3B PC123Y82FZOF IC902 56G 379 32 SG6841DZ（无铅品名） IC901 57G 761 6 2SC57O6-P-E Q209 57G 761 6 2SC57O6-P-E Q210 57G 761 6 2SC57O6-P-E Q211 57G 761 6 2SC57O6-P-E Q212 - 60 – ViewSonic Corporation VX712 Confidential - Do Not Copy...
  • Page 61 L204 73G 174 30YSA FILTER L203 73G 174 30YSA FILTER L204 73G 253 91 L CHOKE BY LI TA L903 73G 253 91 L CHOKE BY LI TA L904 - 61 – ViewSonic Corporation VX712 Confidential - Do Not Copy...
  • Page 62 61L0603102 CHIPR 1KOHM +-5% 1/10W R928 61L0603103 CHIPR 10KOHM+-5% 1/10W R204 61L0603123 CHIP 12K OHM 1/10W R220 61L0603123 CHIP 12K OHM 1/10W R221 61L0603123 CHIP 12K OHM 1/10W R238 - 62 – ViewSonic Corporation VX712 Confidential - Do Not Copy...
  • Page 63 CHIP 1000PF 50V X7R 0805 C910 65G0805104 22 CHIP 0.1UF 25VX7R 0805 C202 65G0805104 22 CHIP 0.1UF 25VX7R 0805 C204 65G0805104 22 CHIP 0.1UF 25VX7R 0805 C205 65G0805104 22 CHIP 0.1UF 25VX7R 0805 C206 - 63 – ViewSonic Corporation VX712 Confidential - Do Not Copy...
  • Page 64 1.5MM RIVET T901 56G 158 4 T H431BA IC903 56G 158 10 T IC AZ431AZ-AE1 TO-92 IC903 57G 419 PP T 2PC945P Q902 57G 420 PP T TRANSISTOR 2PA733P Q901 - 64 – ViewSonic Corporation VX712 Confidential - Do Not Copy...
  • Page 65 470UF 16V LTR471M1CF11V C924 67G215B4713HT 470UF 16V LTR471M1CF11V C925 67G215C1514HT LOW ESR 150UF 25V 8*7MM C201 67G215C1514HT LOW ESR 150UF 25V 8*7MM C223 71G 55 29 Φ3.5*Φ0.8*2.2\ 100MM> FB901 - 65 – ViewSonic Corporation VX712 Confidential - Do Not Copy...
  • Page 66 HEAT SINK 93G 60217 DIODE FMB29L D911 93G 60236 FMB-26L TO-220 DIODE D911 93G 60239 DIODE FME-210B TO-220 D910 93G 60245 DIODE SP10150 ITO-220 D910 93G 60249 DIODE FCH10U15 D910 - 66 – ViewSonic Corporation VX712 Confidential - Do Not Copy...
  • Page 67 34G1321BKD B MIDDLE BEZEL 34G1322 KS 2B BUCKET 34G1323 KD B STAND 34G1325 KR B STAND-F-COVER 37G 497500 HINGE M1G1740 10128 SCREW Q1G 330 7120 SCREW Q1G1030 12128 SCREW - 67 – ViewSonic Corporation VX712 Confidential - Do Not Copy...

  • Page 68: Different Part List

    40G581B709 1B BLUE STICK WITH U 89G 173 56 31 AUDIO CABLE 89G1748GAADVI SIGNAL CABLE 89G410A18N LS POWER CORD M1G1730 6128 CR3 SCREW XN01C M1G1730 6128 CR3 SCREW XN01D - 68 – ViewSonic Corporation VX712 Confidential - Do Not Copy...

  • Page 69: Exploded Diagram And Spare Parts List

    9. Exploded Diagram And Spare Parts List - 69 – ViewSonic Corporation VX712 Confidential - Do Not Copy...
  • Page 70 M1G1740 10128 STAND-R-COVER 34G1326 KR B CABLE CLIP 11G 165 1 5G808D 1 WASHER 5G6020 1 BASE BRACKET 20G 013 1 SCREW Q1G 330 7120 FOOT PORON 12G 394600 - 70 – ViewSonic Corporation VX712 Confidential - Do Not Copy...

  • Page 71: Disassemble Process

    12、 Disassemble the 4 fixed screws of the panel, remove the main frame, as showed in the following the picture 19,20,21. Do not damage the cable of the panel. 13、 That’s all. The disassemble process of the unit is over. - 71 – ViewSonic Corporation VX712 Confidential - Do Not Copy...
  • Page 72 9.3 Show pictures ： （Picture 1） （Picture 2） （Picture 3） （Picture 4） （Picture 5） （Picture 6） （Picture 7） （Picture 8） （Picture 9） （Picture 10） - 72 – ViewSonic Corporation VX712 Confidential - Do Not Copy...
  • Page 73 （Picture 11） （Picture 12） （Picture 13） （Picture 14） （Picture 15） （Picture 16） - 73 – ViewSonic Corporation VX712 Confidential - Do Not Copy...
  • Page 74 （Picture 17） （Picture 19） （Picture 18） （Picture 20） （Picture 21） - 74 – ViewSonic Corporation VX712 Confidential - Do Not Copy...

  • Page 75: Block Diagram

    Block Diagram Scaler RTD2523 (Include:ADC,OSD etc) - 75 – ViewSonic Corporation VX712 Confidential - Do Not Copy...

  • Page 76: Schematic Diagram

    BACKLIGHT PMBS3904 C180 R113 　 1/16W C119 0.1uF C120 0.1uF R114 Title +3.3V 0.1uF ViewSonic R216 +12V Size Document Number POWER Date: Thursday , Decem ber 02, 2004 Sheet - 76 – ViewSonic Corporation VX712 Confidential - Do Not Copy...
  • Page 77 NC/WPSA-1005-5-A D114 NC/WPSA-1005-5-A ViewSonic DGND ZD109 LL5232B 5.6V DGND ZD110 LL5232B 5.6V DDC2_SDA DGND DATA2- DGND DATA0- Size Document Number RTD2523 Date: Thursday , Decem ber 02, 2004 Sheet - 77 – ViewSonic Corporation VX712 Confidential - Do Not Copy...
  • Page 78 Modify 082704 DDC_SDA DDC2_SCL DDC2_SDA R221 C131 C132 M24C02WMN6 　 1/16W R222 C133 C134 M24C02WMN6 Title 　 1/16W ViewSonic Size Document Number MCU MTV512 Date: Thursday, December 02, 2004 Sheet - 78 – ViewSonic Corporation VX712 Confidential - Do Not Copy...

  • Page 79: Viewsonic Corporation

    C220 1000p/50v is power GND R239 R237 560 Title 0.47U/25V 1U/25V 2. FOR HYDIS-100 INVERTER Size Document Number Custom PWPC1742HDV1(715L1075-B-V1) is signal GND Date: Monday, May 24, 2004 Sheet - 79 – ViewSonic Corporation VX712 Confidential - Do Not Copy...
  • Page 80 0.01uF 2.4K 　 1/4W 0.1uF 4.7K 　 1/4W CN901 AOC (Top Victory) Electronics Co., Ltd. Title 1.POWER 12V&5V OUTPUT Size Document Number PWPC1742HDV1(715L1075-B-V1) Date: Monday, May 24, 2004 Sheet - 80 – ViewSonic Corporation VX712 Confidential - Do Not Copy...
  • Page 81 12.6 Audio - 81 – ViewSonic Corporation VX712 Confidential - Do Not Copy...

  • Page 82: Pcb Layout Diagram

    13 PCB Layout Diagrams 13.1 MAIN BOARD PCB TOP VIEW 13.2 MAIN BOARD PCB BUTTON VIEW - 82 – ViewSonic Corporation Confidential - Do Not Copy VX712...
  • Page 83 13..3 KEYBOARD TOP VIEW 13.4 KEYBOARD BUTTON VIEW - 83 – ViewSonic Corporation VX712 Confidential - Do Not Copy...
  • Page 84 13.5 POWER PCB TOP VIEW - 84 – ViewSonic Corporation Confidential - Do Not Copy VX712...
  • Page 85 13.6 POWER PCB BUTTON VIEW - 85 – ViewSonic Corporation Confidential - Do Not Copy VX712...
  • Page 86 13.7 AUDIO PCB BUTTON VIEW - 86 – ViewSonic Corporation Confidential - Do Not Copy VX712...
  • Page 87 Add: Tel: Fax : E-Mail: After completing this form, please return it to ViewSonic Quality Assurance in the USA at facsimile 1-909-839-7943. You may also e-mail any suggestion to the Director, Quality System & Process (marc.maupin@viewsonic.com) - 87 – ViewSonic Corporation...

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