Question about Samsung HCN4226W 42" Rear Projection HDTV-Ready Television

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What is the convergance??

One of the suggestion to fix my tv turning off problem was to be convergance ic then IC831S (STR-X6456), but I really don't know what that is and how I fix it.

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  • Anonymous Dec 30, 2007

    WHAT A PIECE OF CRAP THIS TV IS.

    I OPENED THE WHOLE THING AND YOU HAVE TO BE BRAIN SURGEON TO FIGURE IT OUT.

    I PLAYED WITH ALL THE BUTTONS AND NOTHING WORKS.

    IVE GOT RED AND GREEN SEPERATION WITH ARCHING ON THE TOP.

    I WONT SPEND MONEY TO FIX IT AS IT WILL COST MORE THAN THE TV SO IF ANYONE KNOWS HOW TO ADJUST IT PLS LET ME KNOW ASAP.

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Tv model is pt4298hd repair shop said that he replace both convergance chips check all res/caps all reading in spects.

Posted on Jan 03, 2008

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Posted on Jan 02, 2017

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Panasonic PT-56TW53 56 in. Rear Projection Television- won't turn on -flashes 3 red lights- what's up? Turns on for a second, then it turns off and red light flashes 3 times... I've seen several other...


Your problem could be the Convergence board is loading down the power supplies and will not let the TV set come on, or the power/deflection board, part number AA94-08574A, or the STR type regulator IC, part numberAA13-00105A. If you locate the convergence board, unplug the connectors, and see if the set will come on. if the set does come on, replace both of the STK convergence IC's at once. The part numbers for those IC's are STK392-40. You can get the original replacement IC's from MCM electronics for about 15 to 16 bucks a piece. Do not use the less expensive STK IC's as they are not the same. the replacement IC's should have the name of SANYO printed right on the face of the IC's. Good Luck

Feb 16, 2018 | Panasonic PT-56TW53 56" Rear Projection...

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Red and Green


check video IC or tv convergence sometimes yoke

Aug 12, 2008 | Mitsubishi WS-65809 65" Rear Projection...

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Samsung HCM4215 No Power


I have a 14" samsung hitron tv with a STR problem.The STR got burn beyond identification. Could you please help me with the value of the STR or a schematic diagram for this TV?
My email address is samlog1000@yahoo.com
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May 17, 2008 | Samsung HCM4215W 42" Rear Projection...

1 Answer

TV keeps turning off.


could be a couple of things
first i would guess to be convergance ic then IC831S (STR-X6456).and could be loose connection.
you could try this to narrow it down, purchase a can of freeze at radio shock and spray it on these ic one at a time see if it stays on longer or just replace them

Dec 20, 2007 | Samsung HCN4226W 42" Rear Projection...

3 Answers

Tv won't turn on


Your problem could be the Convergence board is loading down the power supplies and will not let the TV set come on, or the power/deflection board, part number AA94-08574A, or the STR type regulator IC, part number AA13-00105A. If you locate the convergence board, unplug the connectors, and see if the set will come on. if the set does come on, replace both of the STK convergence IC's at once. The part numbers for those IC's are STK392-40. You can get the original replacement IC's from MCM electronics for about 15 to 16 bucks a piece. Do not use the less expensive STK IC's as they are not the same. the replacement IC's should have the name of SANYO printed right on the face of the IC's. Good Luck

Jul 22, 2007 | Samsung HCM4215W 42" Rear Projection...

3 Answers

Convergence problem, i want to fix it myself


If you have never opened a TV set or unsoldered and soldered electronic components and if you have never aligned the convergence circuits on a projection TV, then please do not attempt to fix your TV yourself. Have the set looked at by a qualified tech. Although Samsung said it will cost $400, a good tech will replace the defective convergence IC and pico-fuse and realign the convergence for less. When I do a housecall for a set like that I charge $150, so ask your local shops what they charge.

Jul 19, 2007 | Samsung HCN4226W 42" Rear Projection...

1 Answer

HCN4226WXIXAA


Good be just about anything. This set is common for the regulator IC, the STR-X6456 regulator IC to go bad for starters, the flyback transformer goes bad and takes out the horizontal output transistor sometimes and then blows the main 10 amp fuse. I have also seen the convergence IC's go bad then the set dies because the main fuse blows out, the power supply will go bad because of a surge. If you have no TV repair knowledge, play it safe and have the set looked at by a pro. Good Luck

Mar 30, 2007 | Samsung HCN4226W 42" Rear Projection...

2 Answers

Picture will not come on


Sounds like you Switching IC has failed. This is becoming a common problem with this type of TV's. This IC is identified on the board as IC831S (STR-X6456). The chip cost about $24.

Oct 31, 2006 | Samsung HCN4226W 42" Rear Projection...

14 Answers

Power will not stay on...


The Samsung rear projector TV's have a Fail Safe circuit connected to the Flyback transformer, if the power at RR402S dosn't reach 2.25 v in a few seconds the Micom kills power to the switching IC. Most of the time this problem originates in the power section. It could mean the Flyback Transformer is getting bad. But most of the time I have found that the Switching IC is failing. This IC is located between Transformer T801S and attached to large Aluminum Heat Sink. It is identified as IC831S (STR-X6456).

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