Question about Pioneer SD-P5795W 57" Rear Projection Television

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Need help i have a sd-p5795w tv and it wont turn on first it shut off every once in a awhile now wont turn on someone said the power supply what does the power supply look like so i can fix it

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  • Anonymous Mar 10, 2008

    I'm about to take a sledge hammer ti my Pioneer sd-5795w which keeps shutting itself off. How can something that has worked fine for 10+ years suddenly stop working? Since searching for answers, it's evident that a lot of other models and brands have the same problem. You'd think electronics were in their **** infancy or something. If all we have to choose from is trash then why is it so **** expensive???

  • Anonymous Mar 29, 2008

    all of these tv's have the same problem, it is the power supply that is about 1,000.00 to fix by any tv repair person best is to throw away buy a nicer new one at a cheaper price.

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A power supply is a very complex circuit that changes the voltage that comes from an outlet to voltages the tv can use and is a circuit that need to be repaired because in Tv's is only a section of a circuit board and the rest of the board has other functions. Computers use a single module that you can replace as a whole but not tv's.Be safe an call a qualified technician because there is danger involved.Get an estimate.

Posted on Sep 18, 2006

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Posted on Jan 02, 2017

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1 Answer

TAKES 45 MINUTES TO COME ON
Evidently there is an internal power supply problem.

Nov 12, 2013 | Televison & Video

1 Answer

My Samsung HL-T5075S TV shuts off after being on for awhile and will not turn back on,also if you turn it off you have to wait awhile before turning it back on, I have tried unplugging it for up to one...
Hi,

It's the problem of overheating in the power supply board of the TV.on the power supply board of the tv there are few capacitors and IC.any of this IC is got short or may be weak.so due to this when you start the TV the current passes from electric outlet to the power supply board of TV.but when the current passes from that weak/faulty part at that time current gets stopped or slow and the board overheats and TV shuts off. this is a common problem faced by many other users too.the possible option to solve this issue is to check the power supply board by a meter and continuity tester and replace the faulty component on the board which is short due to which power supply board is getting overheated.its bit technical job but yes its not at all a costly repair to do or get it done by the technician. for required parts it can be easily available from local electronic hardware shop.
This will help.

Sep 15, 2011 | Samsung Televison & Video

2 Answers

My hitachi 46f500 tv wont stay turned on. you turn it on the red light comes on and then you here it click once then shuts off. It has done this in the past, then for no reason it will start working again.
This model like most of these sets uses up to 3 mechanical relays; they are black and square (follow power cord into set) and have a history of either opening or not when in use---I have seen several where it would not shut off or turn on etc where you could tap on the relay and the set would work..
The only other reason would be a bad solder connection in the same area---tap and the set works and it is either the relay or a bad solder connection.

The click is the relay shutting off and points to where your problem is.

If you have questions comment here and I will help.

SD TECH

May 28, 2011 | Hitachi 46F500 46" Rear Projection...

1 Answer

Power indicator light blinks-7 times. will a new power supply fix it

Physically disconnect the SU board and the SD board. (See precaution # 5)

Plug in the TV and turn it on.

Does the TV shut down and the power LED

blink 7 times?

Yes

No

Replace the Panel and the SU board.

(See precaution #3)

Reconnect the SD board only.

(See precaution # 5)

Plug in the TV and turn it on.

Yes

No

With the SU board and the SD board still disconnected, remove connectors SC2 and SC20 from the SC board (See precaution # 6)

Plug in the TV and turn it on.

Disconnect the SD board and reconnect the SU board. (See precaution # 5)

Plug in the TV and turn it on.

Yes

No

Replace the Panel, SD, and SU board.

(See precaution #3)

Replace the Panel and the SD board.

(See precaution #3)

Replace the SC board.

(See precaution #3)

No

Replace the D board.

(See precaution #3)

Does the TV shut down and the power LED

blink 7 times?

Does the TV shut down and the power LED

blink 7 times?

Does the TV shut down and the power LED
blink 7
There is a sequence that you have to check to figure out which board is bad,

Feb 16, 2011 | Panasonic TH-42PZ700U 42 in. Plasma...

1 Answer

I replaced the lamp bulbs and the TV worked fine for awhile but shut off after about three days of use. I unplugged it and waited awhile to plug it back in the timer light blinked for awhile and then went...
While it is suspicious happening so soon after lamp replacement, your main power supply may have failed. In earlier sets, these were problems that eventually happened.

Feb 15, 2010 | Mitsubishi WD-52725 52". Rear Projection...

3 Answers

TV wont turn on at all. I have read alot of forum posts about the capacitors. I took off back of TV and nothing appears to be out of order with capacitors or anything in power supply. I am not gettting...
I had the same problem. The power supply had a bad capacitor on the 5.3V output. The value of the cap is 2200uF / 10V. The top of the cap was swelled. With the cap changed the TV now turns on again. I hope this helps.

Jan 03, 2010 | Samsung LN32A330 32 in. LCD TV

1 Answer

Power Supply part problem with a SD-P5795W
I wouldn't trust anything this repairman said reason well for one thing how could he (or anyone) tell everything else is "in perfect condition" when he couldn't "see" anything to tell what it looked like. He might be right about the power supply being bad But it could also be the high voltage "power supply" could have a short and that would cause the symptions you describe
But if you want to try the power supply your self you can call Pioneer and give them the model number and they should be able to get the information you need.
tvkirk

Dec 24, 2008 | Pioneer SD-P5795W 57" Rear Projection...

1 Answer

Tv runs through vcr only. What can we do? Also need a manual. Where can we find one?
try to resolder the tuner first and see if that makes a difference , otherwise you may need to replace the tuner
does video inputs work ok?

Nov 07, 2008 | Pioneer SD-P5795W 57" Rear Projection...

1 Answer

TV wont' turn on
The failure on your LCD is due to a defective power supply. Leaky or dry capacitors is the reason for the failure. Replacing or repairing the power supply should fix your LCD.
Contact this website and ask them if they have any power supplies in stock.
Good Luck.

Sep 04, 2008 | iLO LCT32HA36 Television

1 Answer

55" PIONEER SD-P5795W REAR..
yeah, I have the same issue... The tv worked fine, and now it will not turn on... the light turns green, then turns off and goes red...

Aug 03, 2008 | Pioneer SD-P5795W 57" Rear Projection...

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PIONEER SD-P5795W WONT TURN ON I PUSH THE POWER BUTTON THE LIGHT IS RED.THEN IT CLICKS LIGHT TURNS GREEN THEN IT CLICKS AGAIN AND THE LIGHT TURNS RED. NO SOUND NO PICTURE. WHAT IS GOING ON

Feb 23, 2010 | Pioneer SD-P5795W 57" Rear Projection...

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