TV Repair Tips


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Size Model Chassis Symptom Problem Description Fix
 PTV780AH01PTV780Audiopoor audio on one channel, no audio on othersIC120 and surronding .15uF/63V mylar caps
13PPC132C121 PowerDead, clicks on button pressC2455 (47uF/25V)
2020MC4304/17 PowerDead, standby voltages lowD1614 (NTE552)
2020PS40S171L03.1UAudioAudio not workingC2244 (470uF/25V,off flyback)
2020PS40S171 Audiono soundjumper from volume control pin 4 to pin 9 of the audio IC
2120MC4304/17 PowerDeadR601 (560kohm), D1229
2121PT6446-44L03.1LAAVideoVertical is shrinking downD6460, C2444, C2465 (10uF/160V)
2525TSC6-101 25B5Dark Screen Dark Screen CRT Rejuvenated, also turned up screen voltage
25  Scrolling Lines Horizontal Lines Scrolling up/down on the screen Replaced filter capacitor
2727PT5445/37L03.1UAAVideoVertical foldover about 3/4 of the screen. Then shutdownC2463 (10uF/160v, near vert output transistors), D6460 (SMD located under C2463)
2727PT5445/37 VideoVertical foldover at top, shuts downD6460 (near C2463) C2465 (10uF/160V)
2727PT6441/37L04.1UAAVideoVertical foldover at top of screenC2465 (10uF/100V), if still not working replace D6457 (SMD)
2727PT6441/37L04.1UAAPowerBlows Fusedeguassing thermister 3525 (#2122-6630-0019)
2727RF50 PowerGoes into shutdown randomlyR3451, R3452
2727RF50/S126 PowerShuts down on button inputChange R3452 to 10kohm, R3454 to 3K9 (#231291513902)
27TS2744 C103 27B8White picture Burnt Resistor on CRT neck board R58 (22 Ohms)
3232MF605W/17 AudioGood picture, but no soundregulator 7006 (L78L08ACZ)
3232PFL3505D/F7 PowerDead set, with open fuseQ601, Q1971
3232PT5441/37L04.1Video3 different colored horizontal linesC2465 (10uF/100V)
3232PT563SL01.1UACPowershuts down in 10 secondsC2463 (680pF/2KV, #4835-122-47584), C2455 (47uF/50V)
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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.