Question about Pioneer SD-P55A3-K 55" Rear Projection Television

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Need service manual or schematic

Model SD-P50A3-K Replaced 4 amp 125V fuse 2 times 1st time after 7 years 2nd time 1 week after Picture bowing from sides (sometimes) Colors changing as well (sometimes) Need service manual or schematic to troubleshoot further Looked at some solutions about this problem, but need schematic to identify components Thank You

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Problem is on Amp Assy. Resolder transistors and regulators that are mounted to the heat sink and replace both convergence output ICs. Replace the existing STK392-110 ICs with STK392-180 for improved reliability.

Posted on Sep 13, 2007


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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017


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Year lo 1 time month lo 2 times weekly 4 times rojulo 6 times vachedi enti ?

year lo 1 time(12 months: 1+2=3 odd)
month lo 2 times(1 week and 3 week these are odd numbers)
week lo 4 times(1 Sunday, 3 Tuesday, 5 Thursday, 7 sat day)
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The power lamp flashes when turned on, no picture???

Ur tv needed a new lamp.Ur current tv lamp,in the tv now.U used the tv about 4 or 5 hours a day.Like the last 1 1/2 or 2 years the tv in used?The lamp life span is over.

May 14, 2010 | Toshiba TP55H60 55" Rear Projection...

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I have a Cobra 21- 23 channel CB and the wires pulled out of the plug. The mike wire has red,yellow black,blue,whiteand a ground. My plug has only four prongs to solder to. What four colors do I use?

Hello there
Here is the diagram for you
Cobra 29LTD, 29LTD ST, 29WX ST
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cobra_29ltd_st_29wx_st_side.gif 29LTD ST Owners Manual pdf_1.gif
29WX ST Owners Manual pdf_1.gif
29LTD ST Schematic Diagram pdf_1.gif
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29WX ST Schematic Diagram pdf_1.gif
WX Schematic Diagram pdf_1.gif
29LTD, 29LTD ST, 29WX ST Factory Service Manual pdf_1.gif
Page 1 to 11
Page 12 to 34
29LTD Factory Service Manual pdf_1.gif
29LTD Schematic Diagram pdf_1.gif
29LTD Schematic Diagram jpg.gif
29 LTD Classic Schematic Diagram pdf_1.gif(Courtesy of Rick Jackson)

Mic Wiring
1- Shield
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1- Shield
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4- Black
Galaxy CB-660EI
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2- White
3- Brown
4- Green
1- Shield & Red
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Nov 17, 2009 | Cobra 29 LTD CB Radio

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My office has the Prostar 816 phone and the manual is not detailed at all.. I needed to know how to change the time (due to time change) Our manual says #55 etc etc... Help me please!

To change the time on a prostar 816 you first need to be at a display set (doesn't matter what the extension number is).
with the handset down, enter #20 the screen should say MMC DISABLED
1) enter in 1 2 3 4 1 # (that enables programming2.gif)
2) enter in #55 the screen should say YYMMDDWHHMM
3) enter in the year, month, day, day of the week, hours and minutes(the day of the week values are 1= mon. 2= tues. etc.)
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When I Turn on my toshiba 32AV500U there is sound but no picture

The problem isn't with the lcd panel, its with toshiba not willing to sell the backlight master or slave inverters seperately from the panel. If you check either the master or slave will have a blown 5 amp fuse, ussually 2 or more transistors inline with the transformer will be shorted.

Nov 16, 2008 | Televison & Video

2 Answers

No closer to fixing!

I have the same problem

Please send me a copy of your service and lets get our problem fixed together..


May 21, 2008 | Pioneer SD-P50A3-K TV

3 Answers

TV Won't Turn On

Are you from US or Canada? I'm Panasonic authorized and allways Pana covered the warranty after 1 month from the expire date. Call Panasonic Viera service and tell them the story. I'm sure you'll get refound.
Anyway, a horizontal line doesn't mean the PDP is defective. It's one scan IC burned on the SU or SD board (depend where the line is). We allways replaced the SC bord each time SU or SD got burned. If after SD and SC replacement it still defective...yes the PDP has one scan line in short.
Call Viera and insist to get warranty. Let me know. Good luck!

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4 Answers

Replace the FU303 fuse

I have just been buying it at radio shack. However in my case it seems once the fuse blew for the 1st time, it happens now every few months -- so must be a symptom of a larger issue.

Dec 18, 2007 | Pioneer SD-643HD5 64" Rear Projection...

1 Answer

Blown 4 amp fuse twice

ok appaloosa! is the fuse blowned again? if blow you have fault unregulated power section, you have defective parts like.. leak degausing or defective diodes or capacitor and or regulator IC. 2nd. defective horizontal output. if not blow the fuse u have fault oscillation!

Sep 14, 2007 | Pioneer SD-P55A3-K 55" Rear Projection...

1 Answer

Toshiba 50H81 TAC0151 Blowing Fuses, I Need schematic

Well without the schematic, knowing Toshiba they have alot of convergence problems, so see if the fuse blown in the convergence area, if you you may have to replace convergence amps. These are the big STK's. Most of the time there was a color problem with set before going out. If no problem with this on your set then look in the HV area Hor. and Ver. area. Hope this helps!

Sep 09, 2007 | Toshiba 50H81 50" Rear Projection...

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