Service Manual
Page 42
... Wire Check Panel AD/B Change Power/B Change Inverter/B Change OSD/B Change Power/B Change Inverter/B Change Panel Change Adapter Change AD/B Change CNT/B Change VGA cable DVI cable Panel Change Next Step NG TEST C Completed ViewSonic Corporation 39 Confidential - Do Not Copy VA1912w-2_VA1912wb-2
... Wire Check Panel AD/B Change Power/B Change Inverter/B Change OSD/B Change Power/B Change Inverter/B Change Panel Change Adapter Change AD/B Change CNT/B Change VGA cable DVI cable Panel Change Next Step NG TEST C Completed ViewSonic Corporation 39 Confidential - Do Not Copy VA1912w-2_VA1912wb-2
Service Manual
Page 45
Do Not Copy VA1912w-2_VA1912wb-2 Defect Mode Abnormal BIOS &OSD Failure Analysis Repair Testing ※ " Panel Change" Should be Performed to Level 3 Repair OSD Key Unavailable OSD Can't Input ... Jiggle OSD Display Abnormal Check PCB Check Wire Check BIOS AD/B Change CNT/B Change Power/B Change Inverter/B OSD/B Change D-sub cable OSD cable VGA cable DVI cable BIOS Update Abnormal Loudspeaker Voice Loss Abnormal Loud L/R Abnormal No Voice L/R Same Volume Loudspeaker Noise Check PCBA Check Wire Check Loudspeaker Next Step AD...
Do Not Copy VA1912w-2_VA1912wb-2 Defect Mode Abnormal BIOS &OSD Failure Analysis Repair Testing ※ " Panel Change" Should be Performed to Level 3 Repair OSD Key Unavailable OSD Can't Input ... Jiggle OSD Display Abnormal Check PCB Check Wire Check BIOS AD/B Change CNT/B Change Power/B Change Inverter/B OSD/B Change D-sub cable OSD cable VGA cable DVI cable BIOS Update Abnormal Loudspeaker Voice Loss Abnormal Loud L/R Abnormal No Voice L/R Same Volume Loudspeaker Noise Check PCBA Check Wire Check Loudspeaker Next Step AD...
Service Manual
Page 46
...VA1912w-2_VA1912wb-2 Defect Mode Failure Analysis Repair Testing ※ " Panel Change" Should be Performed to Level 3 Repair Other Abnormal Display Display Shut Down Display Flicker ((tapping ) Check PCBA Check Panel Check PCBA Check Panel AD/B Change Power/B Change CNT/B Change Panel Change AD/B Change CNT/B Change Panel Change DVI... Signal Display Abnormal TV Function Display Abnormal Check PCB Check EDID Code AD/B Change EDID Update Check PCBA Check Wire Check Controller TV /B Change AV Cable Change Remote controller Change NG Next Step TEST Complete ViewSonic ...
...VA1912w-2_VA1912wb-2 Defect Mode Failure Analysis Repair Testing ※ " Panel Change" Should be Performed to Level 3 Repair Other Abnormal Display Display Shut Down Display Flicker ((tapping ) Check PCBA Check Panel Check PCBA Check Panel AD/B Change Power/B Change CNT/B Change Panel Change AD/B Change CNT/B Change Panel Change DVI... Signal Display Abnormal TV Function Display Abnormal Check PCB Check EDID Code AD/B Change EDID Update Check PCBA Check Wire Check Controller TV /B Change AV Cable Change Remote controller Change NG Next Step TEST Complete ViewSonic ...
Service Manual
Page 50
... TYPE,7 mA,1710 17 B-00006039 27-D003247 V,RoHS 18 N/A 44-D003584 Backlight Unit,A190A2,Green I 19 C-00005686 41-D003772 Cover AD Assy,A190A2,SECC,without Dvi-D Hole,Green II 20 B-00005599 35-D005694 PCBA for ,A190A2-A02-T,A190A2-A02-H-S1,1206-04,Rev....Green II Universal number# Q'ty 1 3 1 1 1 0.00168 0.0044 10 0.0044 1 0.4 16 2 1 1 1 1 1 1 1 2 1 1 1 4 4 2 1 1 1 1 1 1 1 1 1 1 0.025 1 0.021 0.3 1 1 1 1 1 0.02 1 1 1 1 1 1 1 ViewSonic Corporation 47 Confidential - Prefix: Q90 Item ViewSonic P/N Ref. BOM LIST (VA1912W-2) ViewSonic Model Number: VS10866 Rev: 1b Serial No. Do Not Copy...
... TYPE,7 mA,1710 17 B-00006039 27-D003247 V,RoHS 18 N/A 44-D003584 Backlight Unit,A190A2,Green I 19 C-00005686 41-D003772 Cover AD Assy,A190A2,SECC,without Dvi-D Hole,Green II 20 B-00005599 35-D005694 PCBA for ,A190A2-A02-T,A190A2-A02-H-S1,1206-04,Rev....Green II Universal number# Q'ty 1 3 1 1 1 0.00168 0.0044 10 0.0044 1 0.4 16 2 1 1 1 1 1 1 1 2 1 1 1 4 4 2 1 1 1 1 1 1 1 1 1 1 0.025 1 0.021 0.3 1 1 1 1 1 0.02 1 1 1 1 1 1 1 ViewSonic Corporation 47 Confidential - Prefix: Q90 Item ViewSonic P/N Ref. BOM LIST (VA1912W-2) ViewSonic Model Number: VS10866 Rev: 1b Serial No. Do Not Copy...
Service Manual
Page 51
... 5 V/3 A, 12 18 B-00006039 27-D003247 V/0.7 A, I TYPE, 7 mA, 1710 V, RoHS 19 N/A 44-D003584 Backlight Unit, A190A2, Green I Cover AD Assy, A190A2, SECC, without Dvi-D Hole, 20 C-00005686 41-D003772 Green II PCBA for , A190A2-A02-T, A190A2-A02-T-S1, 1208-... Green Universal number# Q'ty 1 3 1 1 1 0.00168 0.0044 10 0.0044 1 0.4 1 16 2 1 1 1 1 1 1 1 2 1 1 1 1 1 4 4 2 1 1 1 1 1 1 1 1 1 1 0.025 1 ViewSonic Corporation 48 Confidential - Prefix: QBM Item ViewSonic P/N Ref. Do Not Copy VA1912w-2_VA1912wb-2 BOM LIST (VA1912WB-2) ViewSonic Model Number: VS10866 Rev: 1a Serial No.
... 5 V/3 A, 12 18 B-00006039 27-D003247 V/0.7 A, I TYPE, 7 mA, 1710 V, RoHS 19 N/A 44-D003584 Backlight Unit, A190A2, Green I Cover AD Assy, A190A2, SECC, without Dvi-D Hole, 20 C-00005686 41-D003772 Green II PCBA for , A190A2-A02-T, A190A2-A02-T-S1, 1208-... Green Universal number# Q'ty 1 3 1 1 1 0.00168 0.0044 10 0.0044 1 0.4 1 16 2 1 1 1 1 1 1 1 2 1 1 1 1 1 4 4 2 1 1 1 1 1 1 1 1 1 1 0.025 1 ViewSonic Corporation 48 Confidential - Prefix: QBM Item ViewSonic P/N Ref. Do Not Copy VA1912w-2_VA1912wb-2 BOM LIST (VA1912WB-2) ViewSonic Model Number: VS10866 Rev: 1a Serial No.
Service Manual
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Do Not Copy VA1912w-2_VA1912wb-2 GND C70 0603/10n/25V/7/RoHS U5 4 NC 5 CD VSS 3 VDD 2 OUT 1 RN5VD40AA/RoHS GND GND Vref VCC33 R212 0603/1K/5% WP ViewSonic Corporation Model Title Scalar Date Rev: VDVI VMPLL ... VSS SDO CE# SCK SDI 2 1 6 5 70 71 72 73 C80 1206/10u/16V/X/PbF GND Pm25LV512 19 R116 0603/10K/5% GND 32 C94 0603/22p/50V/N Y1 14.31818MHz 33 C93 0603/22p/50V/N GND VCC33 ...0603/100R/5% 0603/100R/5% GND MENU LEFT RIGHT R120 0603/10K/5% C88 0603/100n/25V/7 DVI 0603/0R/5%/open DVI_5V R214 GND GPIO_P06 GPIO_P07 PWM0/GPIO_P26 GPIO_P13 GPIO_P14 27 28 29 30 ...
Do Not Copy VA1912w-2_VA1912wb-2 GND C70 0603/10n/25V/7/RoHS U5 4 NC 5 CD VSS 3 VDD 2 OUT 1 RN5VD40AA/RoHS GND GND Vref VCC33 R212 0603/1K/5% WP ViewSonic Corporation Model Title Scalar Date Rev: VDVI VMPLL ... VSS SDO CE# SCK SDI 2 1 6 5 70 71 72 73 C80 1206/10u/16V/X/PbF GND Pm25LV512 19 R116 0603/10K/5% GND 32 C94 0603/22p/50V/N Y1 14.31818MHz 33 C93 0603/22p/50V/N GND VCC33 ...0603/100R/5% 0603/100R/5% GND MENU LEFT RIGHT R120 0603/10K/5% C88 0603/100n/25V/7 DVI 0603/0R/5%/open DVI_5V R214 GND GPIO_P06 GPIO_P07 PWM0/GPIO_P26 GPIO_P13 GPIO_P14 27 28 29 30 ...