Question about Panasonic PT-47WX49 47" Rear Projection Television

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Great Can you please give me a source and/or part number  where I can find the resistors.  i will just replace them both, since I do not have a resistor tester! Thank you. Omar

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There are 3 ratings for the resistors and there are 4 of each rating for each IC they are 2.2 ohm 1watt 2.2K ohm 1 watt and
3.3K ohm 1 watt. You can get replacements here.
http://servicemanuals.vstore.ca/

Posted on Jun 27, 2008

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I'm looking for a replacement convergence board for my Jvc AV48WP74 tv. SSB-5068A-M2 I've replaced the STK392-150 ic's already and after a week they failed again. JVC does not return my calls.


A Google search for the board part number returned several sources. Here's one. You should also check the values of resistors around the STK's. When the IC's fail, the resistors can change value which can cause the repeat failure you're experiencing.

Sep 24, 2009 | JVC AV-48WP74 48" Rear Projection...

5 Answers

Convergence PROBLEM pHILLIPS mAGNAVOX 60" rEAR pROJECTION


Hi,

All i can say is that this is very common.May be it is not the convergence circuit in this case. it is the power supply not giving the convergence circuit the power it needs to run. there are several parts that need to be repalced here.

Or may be the convergence amplifiers need to be replaced. They're on the Small Signal Board (the one with the tuner[s] on it) and the part on the amp's (there are two on them, replace both) start with STK and will be followed by some numbers and pssosibly letters, such as STK392-110.

Goodluck,
Please don't forget to rate the solution.

Apr 11, 2008 | Philips 60PP9202 60" Rear Projection...

2 Answers

A chip on the circuit board started smoking


The component sounds like a resistor, and the fact that it was attached to a heat sink means its a power handling resistor. You said it was burning, so this means that whatever it is attached to is drawing too much current. From what you are saying a component on a board is drawing too much current and is causing another component (the 1 ohm resistor) to burn. My question is what board is this (I am suspecting the deflection or the HV power supply). Please post a picture of the board in question. That way I have a visual guide as to the board and if I can find the schematic, or if you can supply the schematic I'll be able to at least give a better diagnosis of this problem.

Thank you,

Shuttle83

http://www.electron-age-technologies-llc.com

Dec 30, 2008 | Sony KP-61V90 61" Rear Projection...

1 Answer

BLUE BULB CONVERGENCE


Replace the convergence ICs and feed resistors. You can get replacement ICs and resistors at the following link with installation instructions. If you leave them a email with your model number they will tell you the correct ICs and resistors for your model set. Heres the link.
http://servicemanuals.vstore.ca/

Nov 26, 2008 | Hitachi 53UDX10B 53" Rear Projection...

1 Answer

IC Convergence replacement


you will no doubt need two STK392-560 ICs and quite possibly two 3.5 amp pico fuses, and its a good idea to get two 4.7 ohm 1/2 watt resistors as well. You can get all the parts you need at the following link and they will provide free installation instructions with pictures and free online tech support while you do the actual repair if you need it. Heres the link.
http://servicemanuals.vstore.ca/

Sep 30, 2008 | Sony KP-57WS500 57" Rear Projection...

1 Answer

Resistors


I dont have the service manual for that model, However they are located right next to the convergence Ics and there will be quite a few and they will be all Identical should be about 8 to 10 resistors. If you can get me the board location number such as R356 etc, I can find out the rating. I would doubt that Radio Shack would have them as they are metal film usually anywhere from 1/2 up to 2watt resistors . But if you can locate the resistors near the ICs I can tell you the ratings if you give me the board location of one of the resistors.

Jun 16, 2008 | Apex Digital GB55HD09W 55" Rear Projection...

1 Answer

I hit the accept key without resolution after paying for online assistance


Hi

>>Does the chip STK392-120, looks burned.
if yes, replace it.That will fix the problem.

>>There are two IC's, a 392-150 will be the best replacement, and if there are any large burned resistors on that board (should be pretty obvious), then they need to be replaced, too. If there are , let me know the board designator number (it will be "RK-XXX")

Thanks

Riz

Mar 21, 2008 | Hitachi 43UWX10B 43" Rear Projection...

1 Answer

Will not 'Touch Focus' - Toshiba 42H83


1)I have yet to learn any advantage to replacing -110's with -150's
I think there is a misconception that increasing numbers =
better,more durable results....Actually, using OEM or better
quality should be most important.Generics from any source
tend to be seconds,thirds, junk ! Name brand are first quality
2)Check B+ feed resistors next to convergence IC's = burnt ?

3)Solder wire jumpers on signal board = 008,010,017,600,etc.
prevent maitenance

Dec 20, 2007 | Televison & Video

2 Answers

CONVERGENCE ic CHIP


if you can remove the rear panel assy. look for the convergence ic's they start with stk--- and you got the part number you need a source panasonic is 814 source and the number on the ic's stk 390 ----/

Aug 22, 2007 | Panasonic PT-53WX42 53" Rear Projection...

1 Answer

Hourglass Picture


it easy to locate the fusible resistor in the power module PCB,it look like a resistor but white in color,normally printed soc xxxx (2100) on top of the component. After you replaced the STK392-110 , you need to re-alight the convergence setting again.hope it will help.

Aug 03, 2007 | Pioneer SD-533HD5 53" Rear Projection HDTV

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