Question about Audio & Video Receivers
Hi have you checked that all the wires are in the right connectors and their is no short between the wires as this will cause the unit to shut down as it has a protection circuit that stops the unit from further damage.
Also have you checked any fuses
Posted on Apr 01, 2008
You will need a technician to fix this bcecause the power supply is the problem area. set has gone into protection mode.
It may not be the board, however. It could be something as simple as the rectifier bridge shorted down or a couple of bad/gassy electrolytic caps (that may or may not be mounted on the board).
FEW TROUBLESHOOTING STEPS YOU CAN TRY:
ONE: Check the line cord. Wiggle both ends near the molded part.
TWO: Make sure you have power in the outlet by plugging a lamp into the same exact outlet.
THREE: Do a hard reset; merely unplug the line cord but leave it unplugged for 4 hours before powering up again.
FOUR: If still now power, listen for the clicking of a relay inside the set. If you hear the clicking sound you might hear two clicks; once when the power is first turned on and the second a fraction of a second afterwards. This is the protection circuit switching the set OFF to protect it from further damage. The protection circuit activates whenever there is a internal short in the set.
The whacking test is to just bang or smack the set with your hand on the back, side, top, etc., to see if there are loose connections or cold solder joints inside that are acting up. If so, the banging should knock them back to normal and the set should restore. You might have to use some creative banging and some have had to put a book or magazine under one corner to torque the chassis enough to get it to work reliably.
If this does not solve your problem then the problem then as i told you in the begining you will need a technician to fix this.
Please don't forget to rate the solution.
Posted on Apr 01, 2008
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