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Old 07-10-2023, 10:32 AM
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JohnCT JohnCT is offline
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Quote:
Originally Posted by Console User View Post


Anyone know for sure what the issue is by looking at the photos?
Yes, your horiz osc adjustment is off. This is done through the service menu and means the data in the eeprom is most likely corrupt (I have seen this literally a thousand times or more).

Go back to post #3 above and see how to address the cause of the eeprom corruption, otherwise any adjustments you make will be in vain. Corruption of the eeprom can cause any symtom up to a dead TV. If the TV is dead, you will need to remove the eeprom and reprogram it on a programmer or replace the eeprom if you can find one.

I no longer recall the exact way of getting to the osc adjustment but I seem to think that you hold down the menu, hit the power (release) and vol + (release vol + and power and you should see two sets of numbers on the screen. You will raise either the vol or channel until one set reads 76, then you can advance to the horiz osc and adjust that. Maybe someone else remembers the exact position and sequence to get into the serv menu. If not, I have that info somewhere.

But to be clear, these chassis will corrupt the eeprom if the ground structure around the tuner isn't repaired or bypassed and both heatsink ground tabs aren't resoldered. This must be done before *any* work on these chassis takes place.

John
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