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Sony Repair Tips




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Search: sony
Results: 20072
Make Model Symptom Problem Solution By
SONY KX1901
Lighter raster on the top These units had a light area across the top of the screen.the first 12 to 15 scan lines after vertical blanking were lighter thanthe remainder of the raster. it looks like the units had a poor blacklevel just after vert. blanking. also these units have
SONY KV1222R
Incorrect mechanical operation The door assy will not stay closed due to the fact that thedoor retainer which is a plastic material, will not engage the catch onthe door securely in order to keep the door closed. this condition isprevalent on at least a dozen sets or more at the acco
SONY KV1221R
Shut down, replaced r001 After warm-up (or after simply plugging in and not turningon for 1/2 hour or so), the unit could not be powered up. if unit ison, it will then not turn off. remote or manual same. ic001 was bad andthe relay drive transistor as originally suspected.
SONY KV1215
Dead, replaced l309 While i was servicing the unit using an external dc powersupply, i noticed the absence of audio. inspection revealed no 18vbeing supplied to the sc board. resistance of 18v line to groundmeasured about 1kΩ, should be about 180Ω. i then found l
SONY KV1207
Dead 12v line was being grounded by r221 lead touching ground.
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.