ViewSonic Va1912w4 Service Manual
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Defect Mode Failure Analysis Repair Testing Check PCBAPower on Display Abnormal Flicker Next StepTEST NG A Completed AD/B Change CNT/B Change Inverter/B Change Power/B Change Check Panel Display Noise Beat Display Shut Down Beat Display Flicker No Backlight Display Wave B Panel Change Adapter Change Check Adapter ※ “ Panel Change” Should be Performed to Level 3 Repair Check PCBA AD/B Change...
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Failure Analysis Repair Testing Gray Scale Display Abnormal R.G.B Display Abnormal No signal Display White Out Brightness Even Abnormal Next StepTEST NG Completed B Booting Delay C Beat Display No Backlight Check PCBAAD/B Change Inverter/B Change Power/B Change Check Panel Check PCBA Panel Change Power/B Change Inverter/B Change CNT/B Change AD/B Change Check PCBA VGA cable DVI cable...
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Defect Mode Failure Analysis Repair Testing Horizontal Line Defect Vertical Weak Line Peculiar Smell Check PCBA Check Panel Horizontal Weak Line Next StepTEST NG AD/B Change Panel Change Horizontal Band Defect C Vertical Band Defect Power Saving Display Abnormal Check PCBA AD/B Change Inverter/B Change Power/B Change Check PCBA AD/B Change ※ “ Panel Change” Should be Performed to Level 3 Repair...
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Defect Mode Failure Analysis Repair Testing LED Off No Power LED Dark LED Abnormal LED Flicke r Power ON/OFF Abnormal LED Display Abnormal Check PCBA Check Wire AD/B Change CNT/B Change OSD Cable Inverter/B Power/B Change OSD/B Change AC Power Change DC Power CNT Cable Chan ge Adapter Change Check Adapter Check PCBA Check Wire OSD Cable Inverter/B Power/B Change OSD/B Change DC Power CNT Cable Chan ge...
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Defect Mode Failure Analysis Repair Testing Abnormal BIOS &OSD Check PCB Check Wire AD/B Change CNT/B Change OSD cable OSD No Display OSD Key Unavailable OSD Can’t Input OSD Can’t Read OSD Jiggle OSD Display Abnormal Check BIOS Inverter/B Power/B Change OSD/B Change D-sub cable VGA cable DVI cable BIOS Update Abnormal Louds peaker Check PCBA Check Wire AD/B Change CNT/B Change No Voice Voice Loss Abnormal...
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Defect Mode Failure Analysis Repair Testing Display Shut Down Check PCBA Check Panel Display Flicker ((tapping ) Check PCBA Check Panel AD/B Change AD/B Change Power/B Change Panel Change CNT/B Change CNT/B Change Other Abnormal Display Next StepTEST NG Complete TV Function Display Abnormal ※ “ Panel Change” Should be Performed to Level 3 Repair Panel Change Check PCBA Check Wire TV /B Change AV Cable...
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Trouble Shooting Analysis Check the information in this section to see if the problems can be solved before requesting repair. Note :The consumers are only allowed to solve the problems described as below. Any unauthorized product modification, or failure to follow instructions supplied with the product will end the warranty immediately. z No image ‹ Make sure power button is ON. ‹ Check whether the LCD monitor and computer pow er cords are plugged and whether there is a supply of power....
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ViewSonic Corporation 7. Recommended Spare Parts List Rev: 1bItemECR/ECN ViewSonic P/N Ref. P/N Location Universal number#Qty 1Accessories: Power Code, UL, SVT#18/3C, 75C, LP-30B+LS-13, L=1830+/- 50mm, Black, Linetek, 18AWG, No Bag, Green I A-00000458 32E1818015(AJ0A2T3A25)1 2 PCBA for , A190A2-A02-T, A190A2-A02-H-S1, 1206-04, Rev.04, ODM, Green II B-00005599 35-D005694 1 3 PCBA for , A190A2-H, A190A2-H-K3, 106-02, Rev.02, USI/ITC, ODM, Green II B-00005600 35-D005166 1 4 Lips With Audio, DAC-12M030...
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ViewSonic Model Number: VS10866 Serial No. Prefix: QBM Rev: 1a Item Description ECR/ECN ViewSonic P/N Ref. P/N Location Universal number# Qty 1 Accessories: Power Cord 0.75mm2, 3C, A-00002058 32E1818013 1 2 Audio Board (Rev.02) B-00005600 35-D005166 1 3 Power Supply Board, Ver:0F B-00006039 27-D003247 1 4 Main Board - A190A2-A02-T, A190A2-A02-T-S1,Rev.04 B-00006727 35-D008185 1 5 Front Panel, Bezel Assy C-00004276 40-D004254 1 6 Back Cover C-00004277 40-D004253 1 7 Cover Hinge C-00004279 40-D004258 1...
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ViewSonic Model Number: VS10866 Rev: 1b Serial No. Prefix: Q90 Item ViewSonic P/N Ref. P/N Description Location Universal number# Qty1 E-00005747 MJ0A10AK01 19 Wide Semi Product,A190A2,1440X900,TN 1 2 N/A 36X8636401 Driver IC,Scan,HX8636APD400(TSMC),300Channel,,RoHS,Green I 3 3 N/A L3J009XXXX 19 wide PS TN Asahi 0.7mm glass Cr BM(Panel Base) 1 4 N/A 74-D002212 Polarizer,TFT,Degree 135,414 mmx259.7 mmx0.215 mm,NWF-LESEG,M190A1,Green\ I 1 5 N/A 74-D002213 Polarizer,CF,Degree 135,415.84 mmx262.15...