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Sharp LC-52X20E Error codes I think.

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bonesy:
Hi guy's,has anyone got a service manual or error code description for this large monolith.I've tried a vol- & input forced start but no joy.So although very very difficult to read,because they flash very quickly,I get green red green red stby light,followed by stby red two flashes opc light 3 flashes followed by both two flashes,then sequence repeats.I've checked quickly voltages before set goes into protection
both lots of 68 volts & 12volts come up on the inverter boards (4 of them) there's ur 15 & s 15 volts that comes up 12 volts to t-con comes up.Any ideas or fault code description much appreciated.
John.

jordan:
Eratic voltage at main smoothing capacitor (should be 350V in standby mode and about 395V after start-up.
Check SMD resistors R-7832,R-7833,R-7834 (all 511KR) on underside of PSU for reduced resistance

bonesy:
Many thanks Jordan,Sadly got to the bottom of the fault.The T-con board has a short on it & this is probably because someone threw/hit the screen with the set on!The screen was very,very dirty when it came in,so couldn't see the breaks on the internal layers of screen.Just had a funny feeling about he customer when he bought it in.Time wasters.

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