Question about Sony Grand WEGA KDF-42WE655 42" Rear Projection HDTV

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Re vertical coloured lines through out picture

Suspect b module,has anyone heard of any way to repair these modules,defective caps ?....cost of new module is excessive....this is same problem that kdf42we620 had with DIC module...would appreciate any help thanks.. john

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Re: re vertical coloured lines through out picture

You can contact PTS and see if they rebuild those boards otherwise I would suggest replacing it. The cost is well below that of the set $252 from Sears parts.

Posted on Mar 07, 2007

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Toshiba hyper module. Vertical lines on screen.

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TV will not turn on. Clicking noise heard from inside.

These sets use what is called a "switch mode" power supply. In order for them to work there is a capacitor that "kick" starts the process. If that cap goes bad, the power supply will not start up. Also, there are other caps inside that maintain the oscillation required for the power supply to work. There are 2 options for you here.

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2) Repair the existing one.

Sicne these types of power supplies are not the easies to diagnose or repair, I would suggest that you replace the power supply module. That should resolve the problem.

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1 Answer

50HDX82 rear projection Flicker/Fuzzy and Vertical Purple Lines

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1 Answer

Samsung rear projection tv have vertical black linens up and on tv

you have a bad dmd module and it cost around $750-$800
Happend, because a bad soldering connections in that module. Lines will come on and off. Probably 1 day will stay on. For last 2-3 years im seen that only on hlm and hln series. Probably
happens on other models. but, i never seen that.
Is not that hard to replace that module. You have to remove 2 screws from left side and 1 screw from bottom righ side of module and 4 of them
from around dlp unit unpulg all cables ( i think
3 cables ) that it. Same way install new one in.
but you will need to adjust a module position to get picture to fill whole screen.

Jan 17, 2008 | Samsung HLN5065W 50" Rear Projection...

1 Answer

Picture Jumps/flashes for first 5 minutes

There is a module called a hyper board that is vertically mounted near the jack panel. Inside the module are 10mf/25v capacitors they are grtting weak. The module is fully shielded and pluggs into a socket. the module has 4 tabs (2 on each end) that must be unsoldered before it can be unplugged. This repair should be done by a qualified technician. The caps are surface mounts and very small. Unless you have excellent soldering skills and a rock steady hand DO NOT ATTEMPT to repair this problem on your own.

Nov 16, 2007 | Toshiba 57H81 57" Rear Projection...

1 Answer

Mitsibishi 50" vs50607 convergence?

Rolling picture could be a pip module problem as both horizontal and vertical sync goes through the PIP module. These sets have been known to have bad caps in the pip board causeing loss of vertical sync.If you need any more info let me know.

Oct 15, 2007 | Mitsubishi VS-50607 50" Rear Projection...

3 Answers

Jittery picture

the jittering will get worse with on time this tv needs a hyper module and some are still available for replacement id get a new hyper module or have it rebuilt needs caps in the module forget about doing this repair yourself just like the guy on csi miami "they never listen"

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Picture has horiz. lines

There is no vertical hold in the tv circuits now adays. You may find a vertical center or a vertical height. Your problem sounds like (if it has PIP Thats Picture in Picture) its in the PIP module and its a small module that stands up and most models of Mistubishi this module is no longer availabvle. The problem with the module is the small pana caps are leaking and ruins the PC traces. I have heard that theres a kit available on E-Bay to jump out this module. Now if its not the PIP model then it could be a few capacitors in the vertical sweep circuit. Also the B+ feed off the Flyback that supplies voltage to the vertical output IC could have a bad or leaky capacitor in the circuit. If your not a tech or solid state troubleshooter theres not much you can do and SHOULD take this set in to a repair center. Good Luck

May 21, 2006 | Mitsubishi VS-45605 50" Rear Projection...

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