Question about Televison & Video
(1)2003 32" JVC TV & (1)2004 32" JVC TV, line fuses not blown, bridge rects and H.O.T. are ok. Possible power supply relay open? Or maybe control microprocessor problems? Or standby circuit problem?
If it is relay problem you can make it direct just to check.check power supply output. as you say that eht ok than it due to stand by section of system control mcrpssr.
Posted on Sep 13, 2007
Tips for a great answer:
In most cases, if the main power supply fails, the low
voltage supply that provides enough power so the set can receive input from
your remote, also lives on to signal problems, often by flashing the power LED
in a pattern.
In your case, apparently the low voltage supply is also
This can be caused by both supplies being damaged from a
line surge caused by 'dirty' AC power, or a spike from a lightning strike
somewhere in your power network.
These spikes can travel long distance so a strike need not be
all that proximate to do damage.
If no fuse holder is found on the back of the set, it may be
necessary to remove the back panel for access.
If you choose to do this, it is safer to leave the set
unplugged overnight to allow any hazardous voltages to discharge.
Look for a separate board or an area which has larger
components in it.
These will be cylindrical cases and larger block-like parts.
If there is a user-replaceable fuse in the set at all, it
will most likely be in that area.
If this damage was caused by a high voltage spike replacing
the fuse may be fruitless and if a replaced fuse blows again, then other
circuits have been damaged and major boards will have to be replaced as well.
The cost of reviving a lightning damaged set of any kind can
often exceed the cost of replacing the whole set.
Even the most primitive plug strip contains components that
afford some protection against this kind of damage but the best protection can
be had with a 'whole house' surge suppressor.
These cost ~$200 US and feature insurance against appliance
losses up to $10,000.
They require access to the main breaker box, safety precautions and a few tools for installation.
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