Question about Pioneer SD-643HD5 64" Rear Projection Television

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Power problem when you turn on the main power button on... the red standby comes on and the green power button comes on at the same time ...but the green button go's off and no picture is there. ???? I had moved it away from the wall to look at it ... and after a couple of times trying... it came back on ... when i move it back ... it happened again.

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  • Anonymous Sep 04, 2008

    took back of tv off and found a blown fuse thought my problems were over but turned my tv on and nothing happened checked the fuse and it was blown again fuse location is 303 it is a 4amp-125v

  • mlittlejohn Nov 11, 2008

    I push the main power button on and the red standby light turns on. I push the smaller power button and nothing happens. I can hear the tv click as if it is turning on, but nothing comes up on the screen. It worked fine 12 hours ago. What should I do??

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Its the Transformer a capasitor and 3 resistor's..OK cost 355.00 I will give you 150 for the TV and i will pay to get it fixed ..Its not really worth it to hold on to it ...150.00 and 355.00 will that work for you... I will be buying it for 505.00 is that enough.

I had the same prob ...so tats what I did and baught a new one .
I CAN GET YOU ANY TV AT 1/2 OFF ANY WAY ...radricktip@gmail let me know what size and the most you have to spend on it...Is that ok with you??

Posted on Nov 21, 2008

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I just had this same problem. I replaced the 303 fuse and it works like a charm again.

Posted on Oct 12, 2008

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1 Answer

Does not power on


ok on pioneer most of the time it is because of bad connections all over the main power supply board solder these and see what happens like i said most of the times it starts with bad connections.

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The fan should run for a few minutes after shut off to cool the lamp down.

If I read and understand correctly somewhere in the cycle you are getting 5 red blinks? that is an error code........

Either you or I can Google the model number of the set with 5 blinks.....or visit the Sony site to see what it means.....

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I have a Sony KDS-R50XBR1 that has no picture. When I turn on the TV, the green Power/Standby LED light blinks for about 30 seconds, then turns red and blinks five times. The Power/Standby LED repeats...


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1 or 2 things, Blowed Fuse on the Deflection power supply board
6.3 amps will be located in the Middle of chassis.
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Mats Electronics has them 1-800-628-1118

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Tv went off while watching a program power standby red light blinks 6 times then pauses then repeats tried unplugging unit waiting a few minutes then replugged same results nothing. can anyone help me ?...


Here's an excerpt from the Sony Manual online. And the link - http://esupport.sony.com/US/perl/webtree.pl?template=EN&mdl=KDF55XS955&content_id=68&category_id=11&problem_id=52

The POWER/STANDBY (red) indicator flashes three times
If your power/standby indicator is flashing in a pattern of three flashes, this may indicates that the lamp cover is not attached securely. Follow the directions in the Operating Manual under changing your lamp that related to closing and securing the Lamp Cover. Ensure that the Lamp Cover Door is securely fastened by tightening each screw.

The POWER/STANDBY (red) indicator flashes continously
If your power/standby indicator is flashing continuously, and the lamp cover has been secured, your TV may be in need of service.

The POWER/STANDBY indicator is lit up green (not flashing)
A sustained green light indicates your TV is on.

The POWER/STANDBY indicator is lit up red (not flashing)
A sustained red light from your power/standby indicator simply indicates that your TV is in standby mode. This shows you that your TV is ready to be turned on with the remote.

Is it the power light and not the lamp light? If the lamp light is flashing then replace the lamp.

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yeah, should stay red when unit is turned off, indicating there's power but it's doing nothing.

Per user manual:
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Try Resetting the box to its factory setting:
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Warning: You will lose all data on the Hard Disk!

I did this when mine wouldn't record anything and dumped all my pre-recorded programs.
Worked a treat.

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