Question about Samsung HC-P4752W 47" Rear Projection HDTV-Ready Television

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Convergence IC CAn I swap a STK 392-040 for a STK 392-010?

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Re: Convergence IC

Yes, you can, but the -010 is the weakest IC and may not last long. I always use the -020 IC and never have problems.

Posted on Sep 04, 2007

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Mirror image??

Your problem is the convergence circuit, you need to replace the convergence Ic's there are two large black IC's mounted on a large metal heatsink. The part numbers are STK-392-110 replace them with the same part number or use STK-392-120 for better and long lasting.

Sep 09, 2011 | Panasonic Projection Televisions

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The picture is bowed and you can see double and the color is wrong

convergence ic stk----- you can repair this yourself if you can solder you can obtain ic.s from matt electronics or any electronic suppliers locate the convergence ic.s on chasis there will be 2 the number will start with stk- most likely stk-392-110 hope this helps

Oct 10, 2010 | Hitachi 43F300 43" Rear Projection...

1 Answer

I am having convergence problems and need to know if there is really a difference with Sanyo and Sanken STK IC convergence chips?

Just the name, Sanyo quit making the STK series several years ago Sanken, Toshiba and Mitsubishi all have good versions of the STK series.

Aug 25, 2010 | Zenith R50W46 50" Rear Projection...

1 Answer

I have alot of offset blue and yellow in my picture. I tried convergence from the front but it didn't help...what can I do to fix w/o alot of cost in these tough times..?

This problem is related to the convergence, but it requires replacement of IC STK from one of them who control convergence, check both and replace faulty IC STK from new one and your tv work fine again. You can buy the convergence IC's from the link click here.
Thanks for using fixya.

Nov 01, 2009 | Projection Televisions

1 Answer

When I try to do the manual converegence on my sony kp51ws510, I cannot get the squares around the + to change to red or blue and consiquently I cannot adjust the convergence. Flash focus works fine but...

You need to replace the convergence IC, They start with STK make sdure you get original stk IC's and not cheap china made or aftermarket parts as they will not lasts long in your set. if you pay less then 15 bucks for your IC that really is no bargain cause it is most likely an aftermarket IC

Aug 14, 2009 | Projection Televisions

1 Answer

Letters and numbers are 3d and curved picture


red, green, and blue lines curve across the top of tv is cause by defective convergence STK IC or you have open resistor at convergence section. if you have defective RGB Color vertical ramp probably you have defective STK IC..


Aug 02, 2009 | RCA D52W23 52" HDTV CRT TV

2 Answers

Replacement STK numbers for convergence amps

This unit does not use the STK series convergence amps.The convergence power supply is what you need.I will provide that number for you after while.

Jan 19, 2009 | RCA P52960 52" Rear Projection Television

3 Answers

STK IC 392-110 Chips

am having stk 4392 amp board 2 channel, i want to change this two channel in to one channel. what modofication should i do

Dec 02, 2008 | Toshiba 42H81 42" Rear Projection...

1 Answer

Hitachi 65xwx20b convergence

Your message says you "replaced stk392-150", did you replace both of the stk`s or just one of them??? One is for RGB vertical the other is for RGB horizontal, you should always replace both stk`s as a set, Hitachi recommends you use a "replacement kit"
part number X480306", this kit includes both stk`s with a new & supposedly improved set of stk`s as well as all resistors that are required for proper set-up, they strongly recommend you change all of the parts in their kit. The only other thing besides IC`s & resistors that could cause your problem is:
1) bad dcu output (you need a scope to check this)
2) you`ve lost either the +15 volt line or the -15 volt line to the IC`s, "Fxxx" chemical fuse open in power supply.

Dec 01, 2007 | Projection Televisions

2 Answers


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...

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