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Sony Repair Guide: Common Issues and Fixes

Brand Model Fault Detailed Problem Solution By
SONYKV2080R
Audio noise, add capacitorsAnnoying high pitch sounds from audio (not horiz squeal).hisses and high freq from audio may be because our audio does stretchtowards the high end and tv sound is just not that good.
SONYCCDV8AFU
Counter will not readCounter will not change, stays in the 000 position. foundsensor ph602 defective.
SONYBMC200
No colorUnit had no color. black/white ok. going through alignment,could not balance horiz. (h. balance adj. on page 8, section 2-2-1).output on one side was half the other, that is why we had a good black/white.
SONYKV1952RS
Poor low band reception, replace band sw ic002The unit had a snowy picture on #2 and progressively gotbetter through #5. high band and uhf worked ok. we found the power supply ofthe problem to be a defective band switch ic. in the low position the h/sterminal on the tuner is supposed to be -10v. it wa
SONYKV1943R
Fold over on top of picture, replaced c-523The unit has a fold over on the top of the picture and doesnot fill the screen. the problem is caused by c-523 drying out. this isbecoming a more common problem with this chassis now because the capacitoris located near components that become warm and
SONYSLHF300
Won't hold station memoryThe tuner would not hold memory. we found r39, r40 and c22to be missing from the ss-32 board. they never had been installed.after installing the correct parts the unit operated correctly. -hq comments: we will watch closely for similar problems and co
SONYICF17
Ic-1Ic-1 is listed in parts as #8-759-300-25 or ic hd10125 when icin unit is upc13036.
SONYBC7
Battery charger for bc-7No charging - open primary. according to unit, it is made for100v - a sticker is over embossment on case marking it as made for 120v.is it 100v unit mismarked? -hq comments: the sticker is correct. in order to be more cost effi-cient, tokyo uses the s
SONYSTRAV360
No am/fm - display data incorrectUnit came in with no am/fm. when numbers were entered, randomcharacters would appear on display. replacement of controller, ic301solved the problem. then am ok, but no fm tuning voltage. checked baseof q206 switching voltage ok, but collector voltage
SONYCCDV8AFU
Poor video, no color, poor sync (camera only) after warm upPicture deteriorated (during camera use) after 2 to 3 min ofoperation. vcr picture ok.
SONYKV2781R
Dark pic and saturated red, replace picture tubePicture very dark, color saturated with red. brightnesscontrol and picture control have very little control on brightness level.had to crank g2 to maximum to get brightness. occasional arcing, 30 minsinterval.
SONYCCDV8AFU
Picture pulses on pb and recordThe picture pulses, like horizontal jitter, and whining noise coming from the drum motor. voltages on pins 22, 24 and 3 are 2.4 volts dc and the waveforms appeared very noisy.
SONYKV2084R
Add, erase and picture buttons won't work, chassis positionChassis was not up against front bezel.
SONYSLHF400
Intermittent remote operationRemote would quit working intermittently. found unswitched5v line noisy. c004 had both leads barely connected.
SONYSLHF400
Noise in picture, looks like dropoutsIn playback, three glitches appear on the screen, one near thetop, one midscreen and one close to the bottom. they look like dropouts,but they could be affected by slowing down the drum.
SONYWMF100
Battery is not making good contactWhenever the battery case becomes loose, they fail to makecontact with the battery contact. i have had three in a relatively shortperiod of time.
SONYSL5000
No threadingThreads part way, then stops. no slippage in idlers or belt.motor dc still present when stalled.
SONYKV2781R
Picture brightness pulsed, reinstall anode connectorPicture brightness pulsed intermittently, accompanied by aticking sound.
SONYKV25XBR
Tv set to last channel, no control possible.When powered up, tv set to last channel, no control (local orremote) possible. pix displays bar and word picture on screen, notcontrollable.
SONYSLHF900
Intermittent tape jamIntermittently capstan motor overruns and eats tape whengoing from betascan to play. observation of the capstan error voltage attp515 on ss-53 board indicated that it remained at betascan level, eventhough reels had switched to play. c/r switching was