Question about Mitsubishi WS-55513 55" Rear Projection HDTV

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Vertical output IC

Can you tell me where to find the vertical output IC?

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It's on the main board which is the board all the way on the right side and attached to a small heat sink

Posted on May 12, 2008

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Panasonic pt-53wx53g vertical output ic


Hi,
IC451 (Vertical Output) LA78045 part number is C1AA00000521
Available in Part Store.

Above info are taken from related service manual and an image of s.manual is given below...

f65b289.jpg

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Good Day; Just replace the caps first, 99.9% fix if not replace 9v regulator. Good Luck, big IRISH.

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Board location 7550 on the LSB ( Large board on the right) Its a TDA4861 its not like the convergence IC its mounted to a black aluminum heat sink with a metal spring clip

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There should be three circuit boards on that model a small board on the right then a larger board in the middle and another large board on the left the vertical IC will be located on the middle board it will be attached to a aluminum heat sink.

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1 Answer

No picture on tv screen


try resoldering the vertical output IC. sounds like the cRTs are blanking due to the vertical. If that doesnt help you may need a new IC. While youre there look for signs of the CRt leaking as often it leaks right onto the vertical output section real close to the IC.

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Hello, I own a 2003 phillips 46" rear projection HDTV model no. 46PP9302 & serial no.78201545. I went to change the channel and the picture just went out but there is still audio. Could it be the...


try resoldering the vertical output IC thats most likely the problem if not the vertical output IC may need replacing. If you can solder you may be able to do this yourself as its not a hard repair the replace the output IC

Apr 18, 2008 | Projection Televisions

1 Answer

Piomeer 643hd5


no sounds like either the vertical output IC needs resoldering or maybe defective. vertical IC will make the tubes shutdown for safety while audio and Crt heaters will remain on. Try resoldering the IC if that doesnt help replace the vertical output IC its an inexpensive part. If you need more assistance please let me know

Apr 10, 2008 | Pioneer SD-643HD5 64" Rear Projection...

1 Answer

Pioneer Elite pro 99


most likely the vertical output ic making the CRTs blank. Try resoldering the Output IC, if that doesnt work you may need a new Vertical IC

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2 Answers

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That sounds like vertical failure. Does the blue line run across the screen from side to side? Try resoldering the vertical output IC and see if that straightens it out. This is sometimes been a problem with that chassis. Let me know how you make out or if you need additional help.

Mar 29, 2008 | Mitsubishi VS-5043 50" Rear Projection...

1 Answer

Television has no picture


That TV uses the PTK195 chassis, and the fact that you see only a thin line for each color near the bottom of the screen tells me your vertical output IC has stopped working, and is putting a small DC voltage across the yokes. I have seen this caused by a defective vertical output IC and I have also seen vertical problems caused by a small CRT coolant leak which drips onto the main board near the vertical output IC. If you do not have experience servicing the PTK195 chassis than have a qualified tech handle it for you.

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