Suudenly, I been having trouble turning on my tv. Do hear the clicking noise when pressing power on switch on remote control or power switch @ the TV front panel. Some time it does start after clicking it for almost all day. When it's warm then no problem turning it on and off again. Wondering if the power to the crt or the tv is thru a relay or directly powered thru transformer. Opened the rear cover and couldn't find where the clicking coming from? in other words looking for the part or relay to resolder the contact if the problem is due to a cold solder. I believe the power mechanism is same on 40in model as it is on 50 in. model. If I can know the physical location of the part making clicking noise then I might be able to measure the voltage when switch pressed. Any assistance is appreciated becaus my tv works just great other than this recent problem with turning it on problem.
There is one philips head screw with access only thru an access hole in the circuit board at the back near the 8A fuse for the power input.
Remove this screw and the whole tray will slide out. Be careful to recover the screw using a magnetic driver...
I need to know how to slise the panel out in the bottom to get proper
access to all the boards.I have back cover off I have the same
convergence problem as most others here. I can find a service manual so
I am working blind here.
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Re: Turning on SD-P403 Pioneer projection tv
Take off back cover. The problem power board is to the right of the
board where the power plug feeds into the TV. There is a large white
fuse right bend the power plug. With a meter it read ok; about 8 inches
deeper into the TV on that board was the resister next to two fuses. My
4 amp 125 volt fuse did not read on my meter. After replacing, it
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STK ICs 2 of them,example STK392-110.also CK hori out put transistor and little blue capacitor 2Kvolts it feeds back to Hori Transistor. Mats has STKs
1-800-628-1118 $10.95 each they retail for $55.00 each in repair shops.
bad connection. if you have some electronics experience, unplug the tv and carefully open the back , remove the main bord and check for soldering using the magnifier. if you check very good , you will see a sort of small line around the soldering . that small line are bad connection , re-solder them .
Hey dudes...even i hav had the same problem that too with the same model specified here..Its a problem actually concerned with the power circuit boards of the tv. Its best to get it checked by an authorized technician. For me I had to replace a transistor on one of the boards. But after that my tv came up with a new problem....the colours appear like rainbows! Could nyone xplain y dis is happening?
I had a similar problem with my Phillips 42 in. LCD HD TV.
Here's the problem. The Power Supply Board. I opened my TV
up(warranty was up of course) and found several bad capacitors.
Phillips and several other companies were sold capacitors that although
were highly rated failed within 5 years because of a lack of
preservatives. All sorts of electronic equipment is now being effected
due to these defective capacitors.
1. Take it in and have it fixed
2. Open it up, check the board for faulty capacitors(bulged or leaking) Buy a new Power supply board and install it.
3. Remove PSB, remove faulty capacitors and replace with compatible new ones.
When the set goes into protection BANG like that, without any intermittencies, usually the convergence ICs have gone out and need replacing. I recommend using the STK 392-180s, which are the stronger upgrade to the 392-110s used originally. You'll need 2.