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My Lg rear projection tv. Colours are not lining up.I did a auto converg with no impr.Do you think the converg I/c must be replaced?( STK 392 570)Where would I get one and at what est costs?

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Is not gonna be cheap. with material and labor costs being what they are, it is today cheaper to replace the set with a new one and a warranty to boot.

Posted on Dec 28, 2016

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LG protection tv model no RT 62NA31RP convergence problem i have replaced stk 392-570


You will have to check its manual. every model has its own function. if you need the manual, let me know it.



Dodge Performance Chip

Aug 12, 2012 | LG Televison & Video

2 Answers

Focus Error I am getting double picture and the colors are off. When trying to auto focus the blue lines are wavy.


Replace Convergence ICs ,Big black ICs will have PN# on them example STK 392-110
Mats has ICs 1-800-628-1118

Jun 05, 2011 | Toshiba 42H82 42" Rear Projection...

1 Answer

I phillips 60pp9202 red went out of focus so i replaced two Stk 392-120 with Stk 392-180 and two resistors, but now i have a bow effect please help


check resistors on convergence board for open ,check wiring and make sure cables were placed in right place then perform auto convergence

Jun 11, 2009 | Philips 60PP9202 60" Rear Projection...

1 Answer

Colors are out of line


When A REAR PROJECTION TV has coloured outlines or a 3D image the Convergence Circuits most likely need attention.

Replacing the output amplifiers (located within the Convergence IC's) allows the pictures to line up correctly, and no more color outlines.

This is the most common fault in all makes of rear projection TVs.

Some models of TV require major disassembly and considerable shop/manufacturer's support to repair because of their design that causes other power supply or vertical deflection problems. The poorly designed products require a "bench" repair that can typically cost from $350 t0 $700.

Some TVs are designed for on-site repair and have more reliable circuit design that does not usually cause damage to other parts of the TV when convergence chips fail. The ones that usually allow reliable on-site repair are JVC, Samsung, Sony and Hitachi.

It is normal to have some resistors in the circuit burn up or increase in value from the heat (from 2.2 ohms to 5 or 10 ohms). These resistors must be replaced with the right value or the chip may fail again.

This is not a simple repair like changing batteries or a fuse. Reading through the other posts shows many that try and end up with bigger problems.

Your JVC uses STK 392-110 IC's. Misinformed people replace the IC's with other "new and improved" IC's, like STK 392-150. These are devices with different characteristics and require different value resistors in the circuit. Replacing with the STK 392-150 will cause overheating of the resistors and a damaged IC.

If you are in Calgary, I can help. If not, get someone that has experience working on your JVC. My website is below with some costs and explanation.

calgaryconvergencerepair.weebly.com/convergence-explanation.html

Good Luck,

Easyab

Jul 11, 2008 | JVC AV-56WP74 56" Rear Projection...

2 Answers

Toshiba 42H83 projection TV red convergence issue


the Convergence Ics are STK392-110 ICs you can get replacement Ics at the following link and they provide free instalation instructions.
http://servicemanuals.vstore.ca/

Jul 03, 2008 | Toshiba 42H83 42" Rear Projection...

1 Answer

Jvc convergence


1024x768 Normal 0 Convergence

When A REAR PROJECTION TV has coloured outlines or a 3D image the Convergence Circuits most likely need attention.

Replacing the output amplifiers (located within the Convergence IC's) allows the pictures to line up correctly, and no more color outlines.

This is the most common fault in all makes of rear projection TVs.

Some models of TV require major disassembly and considerable shop/manufacturer's support to repair because of their design that causes other power supply or vertical deflection problems. The poorly designed products require a "bench" repair that can typically cost from $350 t0 $700.

Some TVs are designed for on-site repair and have more reliable circuit design that does not usually cause damage to other parts of the TV when convergence chips fail. The ones that usually allow reliable on-site repair are JVC, Samsung and Hitachi.

It is normal to have some resistors in the circuit burn up or increase in value from the heat (from 2.2 ohms to 5 or 10 ohms). These resistors must be replaced with the right value or the chip may fail again.

This is not a simple repair like changing batteries or a fuse. Reading through the other posts shows many that try and end up with bigger problems.

Your JVC uses STK 392-110 IC's. Misinformed people replace the IC's with other "new and improved" IC's, like STK 392-150. These are devices with different characteristics and require different value resistors in the circuit. Replacing with the STK 392-150 will cause overheating of the resistors and a damaged IC.

If you are in Calgary, I can help. If not, get someone that has experience working on your JVC. My website is below with some costs and explanation.

calgaryconvergencerepair.weebly.com/convergence-explanation.html

Good Luck,

Easyab

Jun 18, 2008 | JVC AV-56WP74 56" Rear Projection...

1 Answer

Samsung sp42w4hb Rear projection


needs new convergence ships, part number stk 392-040, there is 2 of them, replace them both, also check fuses on the board, you probably need a tv repairman to fix this.

Apr 09, 2008 | Hitachi 46F510 46" Projection HDTV

1 Answer

Samsung hc-p4241w problem


Look for 2 Big black chips they will be together on convergence broad STK-392-110s,120s replace both ics.Use STK-392-180s

Mar 29, 2008 | Samsung HC-P4241W 42" Rear Projection...

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