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i would suspect your control buttons on your front panel on the set have become shorted. specifically the volume buttom down. This is freezing you control functions. like someone is holding the volume down button all the time. or intermitantly. this cuircit board is on front of the set. I have seen this problem a few times at the shop. The common repair is to replace that button assembly cuircit board. I believe the last time it cost the customer around 85 dollars, but like all things depends on the part and the technician that puts it in.
The buttons on the front of the set fail, (like mine did) even if they never get used.Probably the 'DOWN Volume' in your case is stuck closed.Try pecking on it first.My remote stopped working but so did the manual buttons too.While poking around on stuff I swished my finger across the buttons and it all started working so I knew I was on to something.I never figured out which one was the culprit as it continued to cause problems and was replaced as a complete unit under warranty.
The other quick check/fix is to remove the trim plate around the button plate (pop out stays like the speaker covers) , then remove the button assembly (3 screws plus pop out stays like the speaker covers) then unplug the multi colored lead from the button circuit board.This puts the Remote back in control and it will work just fine like this, minus manual control of course.
Hi, It sounds either volume down button is bad that turns volume down on its own or system control chip got defective and decreasing volume level. Press volume down button on tv front and check is it working properly. Let me know to find out further info to solve the issue. Thanks.
1. MAKE SURE POWER CORD IS PLUGGED IN.
2. WHILE PRESSING THE VOLUME BUTTON ON THE PROJECTION DISPLAY,HOLD DOWN PIP0R SPLIT BUTTON ON THE REMOTE CONTROL AT THE SAME TIME FOR MORE THAN 5 SECONDS.
3. WHEN THE RESET IS COMPLETE, THE SCREEN ON THE RIGHT WILL APPEAR AND IT SHOULD SAY "LAMP TIME RESET TO "0"
This would be weird for a sony but it sounds like the volume down button on the front of the set is stuck...very very uncommon for a sony. Try taking the bottom front cover off the set and unpluging the button assyembly then see if the remote works the set with it unpluged.
1. UNPLUG TV
2. HOLD IN VOLUME DOWN &INPUT buttons on TV
3. Plug in the TV. (the TV will turn itself on).
4. A blue "K" should now be showing on the TV screen, release the buttons.
5. Press and release the VOLUME DOWN & CHANNEL DOWN buttons simultaneously on the TV. (A blue service menu will appear on the screen).
6. Using the remote, press the DOWN SELECT button once. (The highlighted line should read INDUSTRY INT (+CAUSE) OFF
7. Using the remote, press VOLUME UP once (OFF changes to ON).
8. Press ENTER. After a few seconds the screen turns green and shows - Industry INIT success - at the top of the screen.
9. Unplug the AC cord for 10 seconds then plug back in.
Good Luck, big IRISH.
PS; I did not make this up... it's from SHARP> again good luck...you may have to do this several times....too...get the timming down.