Sony TV Repair: Common Faults and Solutions.
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Results: 20067
Results: 20067
Sony Repair Guide: Common Issues and Fixes
| Brand | Model | Fault | Detailed Problem | Solution | By |
|---|---|---|---|---|---|
| SONY | VTX1000R | Incorrect tuning operation | The customer complaint was the memory worked fine with theexception that it would not remember more than one channel beginning withthe number 3. it would remember any channel beginning with 3 but notmore than one. | ||
| SONY | KX1901 | Noise lines on the screen | There were several lines in the raster, about 2 inches down from the top, looked like retrace lines. these were present only whenthe set was cold after warm up the lines would disappear. | ||
| SONY | KV2649R | Fm station received when operating in uhf mode, ic002 | Fm music is received when a uhf station is selected. vl pinat tuner remains at +11 volts regardless of station selected. | ||
| SONY | KV2647R | Snowy picture vhf, replaced vhf tuner | When switching to any low band vhf channel, the picturewould become snowy. readjusting rf agc control would eliminate theproblem. then, changing channels again, the pix would be snowy again.this cycle could be repeated over and over again. | ||
| SONY | KV2647R | Picture distortion, replace c-508 | The symptom is that the raster will erratically demonstrateshort vertical sweep. it is very difficult to isolate the problem to anyparticular component due to symptom being intermittent. | ||
| SONY | KV2645RS | Jail bars, replaced c539 | Jailbars faint under normal viewing conditions. problembecomes obvious when camera fades to gray, or picture and brightnesscontrols are placed at minimum. jailbars are then observed in graduallylightening shades of gray from left to right across the cr | ||
| SONY | KV2645RS | No last channel memory, replaced leaky d-26 on md board | Last station memory is lost when the set is turned off. | ||
| SONY | KV2645RS | Noise lines on the screen, replaced yoke | Lines visible at left side of screen, one inch wide andvertical. all channels exhibited the lines. | ||
| SONY | KV1945RS | Dead, wire short to ground | Dead. talking to customer, we found that it was intermittent.finally the set failed to operate and it acted like high voltage shutdown problems becuase you could hear the high voltage come up and then godown. the key point here is that there were no ch | ||
| SONY | KV1945RS | No picture, replaced q004 | This unit intermittently loses vc voltage. we found q004 thermally intermittent. | ||
| SONY | KV1945R | Parts compatibility, damper diode | The parts list show d510, d509 as being a gh3f (damper diode).this diode will only last a minute or two, before shorting. the originaldiode we removed does not resemble a gh3f. i feel there is an error withthe parts list. we can put in a regular recti | ||
| SONY | KV1913 | Channel not lock | After 15 minutes, set would go into random timed sound muteand aft drift in short spurts. trouble would only show itself whileconnected to cable system in customer's home (ch. 3) and would not show inservice shop. it was later discovered that ch. 2 is | ||
| SONY | KV1746R | Dead, replaced d007 and r123 | Unit would not turn on. found d007 shorted and r123 open. | ||
| SONY | KV1746R | Dead, replaced ic1 on the "n" board | Set was dead after a thunder storm. remote did not work.relay did not activate when power button was pushed. | ||
| SONY | KV1746R | Incorrect tuning operation | An attempt is made to program a channel button. althoughreception is ok, there was no memory and once another button is selectedall buttons have lost their program. | ||
| SONY | KV1741R | Incorrect tuning operation | On this set, complaint was that ch. 5 was hard to tune in andhad a horiz. bar traveling up in pix. inspection revealed that horiz. barwas present on all channels, more noticeable with weak signal. furthertests showed that -11v supply was only -3vdc. d | ||
| SONY | KV1715R | Incorrect tuning operation | When turning this unit on it would take 3 to 4 seconds beforeit would select the last channel. then the set displayed a variety ofproblems, the picture had what looked like 60hz ripple in it with lack ofcolor sync. you could select different channels, | ||
| SONY | KV1711 | No picture | This unit had excessive hum and low b+. it was evident thateither the main filter was bad or the regulator was not working. itbecame obvious that the regulator was not working. careful examinationfound r604 open, although it was not burnt. i have see | ||
| SONY | KV1547R | No low vhf | Inspection revealed that vc voltage to tuner would not vary.voltage at pin 22, ic005 was always 4vdc, should be 2.1vdc, with nosignal and set tuned in to vhf low. r074 was not soldered on one end. | ||
| SONY | KV1547R | Delay in turn on, short ic001/pins 17 & 18 | I noticed that it took 4 seconds for set to come on. also,when first turned on, response light would not illuminate. collector ofq010 always had a dc level on it and a noisy square wave. pulses werealways present at pin 18, ic001. further inspection |