sony Repair Tips




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MakeModel Ch.SymptomProblem SolutionSolutionBy:
Sony KVG25M1
DeadFound Q802 C4927 short, replace with same type as no other types last
Sony KVFX29 FX
White horizontal line no vertical deflectionCheck / replace R548, R549
Sony KV2062
Dark picture, No brightness control1000V+ Missing caused by open circuit IK resistor Near to FBT
Sony KV-21RXR1
Excessive brightness/ brightness control reverses its functionWhen setting brightness to minimum the pic became very bright, setting to maximum the picture became dark ! Found that R301 270k ohms near the jungle IC was o/c
Sony FE-1
Intermittently displays bright red/green/blue raster then shuts down with led flashing 2, 4 or 5 timesAmazingly this was due to the CRT being faulty !
Sony FE-1
Procedure to display past error codes and the number of times they have occured particulary useful for ongoing intermittent faultsEnter the standby mode then press the on-screen display button i+, 5, volume down, and finally the tv button. Note: the error count can be reset by pressing 8 then 0 on the remote control
Sony KF60XBR800
No picture no sound timer light flash 44 fast 45 then 5 times then 5 timesReplace power block part # 1-468-510-11
Sony KV21M1D
Picture disapears a moment after changing program. Raster/OSD okReplace TDA9806 ic
Sony KV-A2923
Standby led blinks slowly, a few times, won't start upI changed the vertical deflection ic type TDA8170 and I measured two leaky capacitors in the power supply. Better to change all 4 capacitors in the power unit, everything was then ok !
Sony KV-A2923
Set starts, horizontal and vertical deflection work, HT ok, crt heaters ok, but no sound or pictureI turned the G2 voltage up and noticed a white screen with flyback lines, frame ok. I detected two badly soldered double diode rectifiers in the secondary part of the power supply ! I checked all other joints, and everything was ok !! success
Sony KV-E2543E
Set goes to V protection mode led flashes 13 timesCheck if there is saw signal at STV8379. If there is no signal, suspect dj in connector links between both motherboards, especialy the one very close to plastic frame
Sony FE-1
Main p.s.u starts up then almost immediately shuts downThis was due to IC603 SE135N being faulty
Sony FE-1
Procedure to return EEPROM to factory default settingsSelect programme 59, enter the service mode and at the TT-- prompt enter 49 then 24 for UKand 08 then switch off at the mains
Sony KV24FS100
Will not power, led blinkingcheck R640 1K 1/4w if open replace ic600 8-759-670-30
Sony KV-M1400 BE2A
Insuficient vertical deflection. Line rolling on top of pictureReplace ceramic capacitor C524
Sony KV-21FS100 BA6
No power, R640 openChange R640, IC600 and associated electrolytic capacitor
Sony KV-M21TU AE1
Intermittent rolling and loss of luminance, improves as set warms upDry joints on tuner / IF board
Sony KV20TS20
Snowy or intermittent picture, makes popping soundSolder all coils in stand up board and tuner
Sony KV21GMR1 MkII
No raster, flyback squeekingCheck the damper diode, in my case it was leaky, also check the electrolytic capacitor connected from the collector of the pin out trans.
Sony KV28WS3 AE3
No sound or picture, in protection after 2 secondsNo 6.5 Volt on G-board. Fuse resistor PS605 is broken on G-board. Cause: bad contacts