Sony TV Repair: Common Faults and Solutions.


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Sony Repair Guide: Common Issues and Fixes

Brand Model Fault Detailed Problem Solution By
SONYD5
Noise in audioOnly noise was heard in audio.
SONYKV2649R
No display intermittently, replaced display tubeIntermittent channel indication.
SONYKV1952RX
Snowy picture, replace vhf tunerThis unit produced a snowy picture, the problem being causedby a defective tuner block. we have had reports of a few of these tunersfailing after only a couple of months usage.
SONYFD30A
Poor horizontal and vertical linearity, readjusted rv851This unit displayed poor linearity - both horiz. and vert.we found rv851 (keystone adj) misadjusted, yoke positioning incorrect andthe yoke rings set incorrectly.
SONYFD30A
No picture, broken solder joint at r807This unit had sound but no picture. we found a broken solderjoint at r807. this resulted in no focus voltage.
SONYKV2680R
P/n inquiry for crt, 8-735-453-05 sub to 8-735-453-05P/n for kv-2681 crt is incorrect. -hq comments: the part # in s/m 8-735-453-05 is correct and correspondsto a67jhg01x type crt. in the near future, it will be supplied as areplacement part in sets specifying this crt.part number landin
SONYKV2670R
Dark picture, shorted c-527 and open r-526No y signal, only chroma. found c527 shorted which causedr526 to burn up.
SONYKV2665
Dead, h out q-504, reg ic-601 and f-602H. output shorted and took out regulator and fuse.
SONYKV2657R
High voltage interferenceInterference with other sets. high voltage arcing because oneside of c867 on the p board was not soldered. it caused interference withother sets in customer's home.
SONYKV2654R
Dark picture, replace c531 and r541Picture is dark during normal transmission on all channels.
SONYKV2649R
No display light, resoldered jumperDisplay did not lite at all. lower channels did not comeon all the time (int). higher channels worked fine, picture was good.found no hp going to t001 (hpt) on mt board.
SONYKV2647RX
Poor channel reception, replace vhf tunerNo low channels (2-6) reception.
SONYKV1952RS
Intermittent shut down, replace c549This unit intermittently shuts down. we found c549 to bethermally intermittent.
SONYKV1920
Retrace lines on the pictureFew retrace lines were visible on upper left and lower center of the picture at maximum brightness.
SONYKV1947R
Crt shorted out, replace crt, q601, q901, d516 and r605aNo picture. crt shorted out and in turn the following components went out: q601, q901, r605a and d516.
SONYKV1747RX
Snowy picture on high channelsAfter unit would warm up, high channels (7-13) picture wouldbe snowy.
SONYKV1711
Color flickerPulsating color.
SONYKV1547R
Intermittent soundSound would cut out intermittently on vhf. unable to receiveuhf above channel 34. found catv/normal switch defective. this is thesecond unit i have found with this problem.
SONYKV1500
No horizontal frequency lockHorizontal frequency did not lock.
SONYKV1357R
Picture distortion when operating on/off button, d-001When operating on/off button, picture would either go intosnow or have severe 120 cycle hum in it. set could not be turned off.