Question about Projection Televisions

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Another sample Here is another sample...if the tv is bad i try to turn off and on the tv multiple times until it comes up Good,, but it can take while though

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Looks like convergence, you need to replace both stk's in the set. If you send me the model number i can get you the part numbers you need if you dont know.

Tim Nolan

Posted on Sep 15, 2008

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Tv turns on and off all by itself, all day long. picture is still perfect when it stays on long enough.


Good day..


That problem is usually cause of bad capacitors on the power supply section..

As you stated your TV works fine and after a minute the red light comes on...

That symptoms is cause of bad capacitors..Normally bad capacitors can check visually if the capacitors look like leak/bulged on the top that is the indication of bad one but not all bad capacitors are bulged some are not so in that case you have to used a special meter called capacitance meter..

This is the sample picture of bulged capacitors:


12_6_2011_5_59_01_am.jpg

Hope it helps...

Dec 23, 2011 | Philips 50P8341 50" Rear Projection...

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Red light is on in front and have no picture


Good day..


That problem is usually cause of bad capacitors on the power supply section..

As you stated your TV works fine and after a minute the red light comes on...

That symptoms is cause of bad capacitors..Normally bad capacitors can check visually if the capacitors look like leak/bulged on the top that is the indication of bad one but not all bad capacitors are bulged some are not so in that case you have to used a special meter called capacitance meter..

This is the sample picture of bulged capacitors:

12_6_2011_5_56_21_am.jpg

Dec 06, 2011 | Projection Televisions

1 Answer

RCA HD61LPW42 - no picture


I haven't worked on an RCA DLP but have on Samsung DLP, based on your description it sounds like the color wheel is bad. Take the back off and turn on TV make sure its not a fan making the noise ,but most likely its the "wheel" it is inside the light engine probably right next to where the lamp is plugged in. If the whine comes from this area definitely the wheel.

Apr 26, 2009 | RCA HD61LPW42 61" Rear Projection HDTV

1 Answer

PS3 display problem for multiple TVs


try to do a simple reset it will reset your video settings just turn it off then hold the power button then KEEP HOLDING until it beeps 2 times then it should come up note: it will not delete any of your data

Mar 04, 2009 | Mitsubishi WD62627 62" HDTV

1 Answer

Tv's green light comes on then off three times


On same Board that you replaced fuse Look at cp 150 if it is puffed up on top it is bad so replace cp150,114,120 one will be 2200u 16v
other 2 caps will be 220uf 35v With tv turned OFF Press and Hold Vol- and CH - at same Time on Front Panel board wait untill set comes on you should now be in Service mode Go to Convergence Try to aline convergence Do Auto converge

Feb 08, 2009 | RCA Projection Televisions

1 Answer

Apex GB4308 43" tv have to set convergence each time I turn it on


Replace your STK ICs and look for Bad capacitor by vertical IC 100uf 35v.

Jan 14, 2009 | Apex Digital GB4308 43" Rear Projection...

1 Answer

Hitachi ultravison 50 in HD TV w/o sound or video access


Good Day, smuffin;
You may have a bad LAMP (part #; UX21516), it's about time, check lights on front panel of TV.
To replace LAMP remove Front Panel outwards until the quick snap disengages. There is small cover on the left hand side, using a philips screw driver; remove. Two more screws secure lamp, use handle to remove. ALWAYS, unplug TV from A/C power source first. Good Luck, big IRISH.

Sep 02, 2008 | Hitachi UltraVision CineForm 55VG825 55"...

2 Answers

TV requires multiple attempts to turn on


You have discribe a problem that sounds like a powersupply cap. It may also be more than one. LOOK at the board very hard for bad caps.

Jul 26, 2008 | RCA D61W20 61" Rear Projection Television

1 Answer

Picture loss


It sounds as though you have what is referred to as a climental problem. In laymen terms, a transistor, chip or regulator is heating up and breaking down. The way a technician normally isolates this type of problem is by using a cooling agent ( freeze spray ). When the set heats up and the picture goes away, the technician sprays some of the cooling agent on a part of the board ( select a small area, about 6 inches square ) at a time and see if the picture comes back on. When you do finally get to the bad area, the picture should come back on for a short period of time until the bad part heats up again. After a period of time and by using the freeze spray, a person can isolate the exact bad part. Replace that bad part, and any filter capacitors hooked to that bad part and the set should work properly. As always, use caution and unplug the set before opening the set and when using the freeze spray, be sure not to touch any connections in the tv as they could produce shocks.
I hope this has helped and good luck on your problem.
Ed
NC Electronic
Mills, Wyoming
Have a Great Presidents Day

Feb 18, 2008 | Hitachi 57SWX20B 57" Rear Projection...

1 Answer

TV picture goes out and then comes back, TV eventually turns off


Probable bad DM module = repairable by qualified Mits.tech.....

Nov 13, 2006 | Mitsubishi WS-48613 48" Rear Projection...

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