TV Repair Tips


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Size Model Chassis Symptom Problem Description Fix
26VA26LHDTV10A VideoWhen you plug it in, the logo goes to white, and you have no control of functions with the buttons or the remoteC117 (330uF/16V,on Main board)
32E320VL PowerDead, has standbydiode under heatsink in power supply, NTE5808
32L32  Power Power LED light on, but won't start Replaced Main PCB, #3320-0032-0150, high failure item
32L32  PowerDead with an amber light, no reset to operate the microprocessorRemove U26 on the video processing board and solder a 10kQ resistor across pins 2 and 3. Remove the reset IC and replace with a 1N4148 diode. NTE519.
32VO32L PowerAmber Vizio light turns from amber to white, but no audio, video, or backlightD803 (MUR460)
32VP322HDTV10A AudioNO or intermittent AudioQ15 (surface mount, next to CE40)
32VW32LHDTV40A VideoNo pictureIC21 (AP4853GM)
32VX32LHDTV10A Powerbacklight on, no audio or videoU33 (AMC1117A, 3.3V regulator on main board)
4242LFHDTV10A PowerDead, from LED is amber, nothing changes on power pressU7 (AMC117 regulator, 1.8V)
42E420VL PowerNo power up, Vizio emblem goes from amber to white, then back to amberTC83 (.001/25V)
42E421VO PowerSet comes on with Vizio logo, no menu, no turn offreplace mainboard
42GV42LHDTV PowerUnit power on, amber to white, says no signal for 5 sec, then powers offUnit was set to RGB source. It must have an RGB source in order to change to another input.
42M420NV VideoLines in the picture after movinglook for boards that might be touching their metal frame, and insulate those points
42SV420XVT1A VideoNo PictureC815
42VO420E Videono picture or OSD, audio OKU21 (4953GM, surface mount)
42VO42LFHDTV10A PowerTurn on, loco goes from amber to white, nothing else. Had 5V, but no 12V from supplyDisconnecting both inverters, the 12V reappears, SC43 (680uF/35V, in slave inverter)
42VW42L VideoFlashing2 bad caps on EACH inverter board (all 470uF/35V)
42VW42LFHDTV10A PowerShuts down, no pic or soundIC-BD9897FS (on slave inverter board, #0940-0000-1510)
46VW46LHDTV10A PowerWhen turning on, the logo turns amber, but never goes to whiteRegulator U7 (AMC1117, on digital board)
47VO47LFHDTV VideoPicture strobescaps on each inverter board (680uF/35V), C421 (470uF/35V)
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: Don't kill yourself.  If you do, don't blame us...  We totally warned you.  These tips are intended for qualified service technicians that know what they're doing.  Unqualified persons should never service their own equipment.  Televisions contain very high voltage that could kill you.