Question about Sony FD Trinitron WEGA KV-36XBR800 36" TV
This happened all of the sudden, sometimes my Sony KV-36XBR800 will not turn on and the red led blinks 6 times, sometimes it turns on just fine, when it is on it works great. If you turn it off once it is on and the turn it on right away it will come back on no problem, do you have any idea what this could be and what it might cost to replace?
Unplug TV from power outlet and let it sit for a few minutes, then plug it back. It should work fine than.
Posted on Apr 28, 2009
There are two large electrolytic caps on the D board located on the same side as the hv xformer.
both caps are 1200ufd at 250v, replace C6503, it is futher away from the side of the pcb.
this is the part of the ac rectifier that feed IC6501 chip MZ3001D
cap size is 1 1/8" diameter and about 2" inches high.
my problem with 6 or 7 blinks, would go away temporarily after the tv was unplugged for 24 hours.
i verified the fix by attaching a 250ufd at 250v cap in parallel with the C6503.
the problem was corrected.
you must assume the cap is leaking, which leads to the intermittent failure.
parts and shipping are a killer, so i turned to ebay.
search ebay for "Electrolytic Capacitors, 1200 uF, 250 Volt, Snap in 2X".
as the only bidder, i picked up two caps for $3.99 + $3.50 s&h.
might be wise to replace both caps, C6503 and C6590.
Posted on Mar 08, 2009
JA TESTEI TODOS ESTES COMPONENTES , ALGUEM SABE ME DIZER QUAL O LUGAR CERTO PARA FUNCIONAR
Posted on Feb 24, 2009
For 6 blinks Pls check following area.
Low HV Shutdown:
On the D Board.
Check IC8004/pin 7 should be 7.4v.
Check IC8006/pin 2 should be 2.5v if lower will trigger shutdown by causing pin 1 to turn on.
Check IC8006/pin 3 reference voltage 2.2v.
IC8006/pin 1 normally at 0v. If high
turns D5007 ON which turns the latch circuit Q6532,
Q6530, and Q6527 ON and turns the AC relay RY6501 OFF.
And NOTE: 6 blinks also can be Low B+ protection.
Unregulated 7.5 v from the power supply to 5v reg IC504 on the A Board. 5v to M Board Q2314
to CPU IC2300/pin 43. If 5v missing set will shutdown with 6 blinks.I think this will help you to solve this issue..
Dont forgety to Rate!!
Posted on Oct 22, 2008
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