Tip & How-To about Televison & Video

When your tv flashes and goes to stby again

You have to replace some capacitors
all located on the board near the powersupply

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refrigerator clicking

There are 4 capacitors that need to be replaced to solve this issue with WKKT Model No: 0158-06-03 These caps are listed below. C106 470uf 25v recommended (470uf 35v) C29 470uf 25v " " C6 10uf 25v C100 47uf 25v

Feb 02, 2013 | GE Refrigerators

1 Answer

cap placement on psm217-404-h-r power board with coresponding values picture would be nice

This power supply board is also used in Viewsonic VX2835W. The main problem are 4 bad/defective capacitors and shorted legs due to bleeding of soldering lead (brownish color).

1. 22uf 400v
2. 47uf 50v
3. 1uf 100v
4. 22uf 35v

You can find them near the PWM IC controller (U601). Replaced all these capacitors regardless they look good. I pulled them out off the board and tested them with my Blue ESR and capacitor tester and found 3 were defective.

Next, you need at least 97% Isoprophyl alcohol and toothbrush to clean the soldering paste. Due to overheating on the primary section / HOT section the soldering leads tend to produce brownish paste which is causing the component parts to SHORT. Concentrate at the back of the board, especially at the U102 (16-pin IC) and Q202 by scrubbing these IC and transistor carefully. I used magnifier to make sure the legs are clean and shiny. Clean the rest of the back and some part on top of the board. Let it dry for 2 hours at least. I did 2 times this cleaning to make process.

On my VX2835W main board has 2 bad capacitors at C124 and C126. I replaced them and cleaned also the board with alcohol.

That's it. Good Luck.

Roan Mac
Computer Tech
Chapel Hill, NC

Jun 25, 2011 | ViewSonic N3250W Television

1 Answer

Have a blown capacitor in a QSC PLX 3602. It's the large black capacitor near the on/off switch. Can't read the letters and numbers. What is this capacitor? Thank you.

I need a board marking number as there may be several caps near the on/off switch.


C117 .47mfd 250VAC (use 600VDC)

C126 .1mfd 250VAC (use 600VDC)

C132,133,136,137,140,141, All 2200mfd 200VDC (These are large canned units)

Note if one of the latter ones, better check the full wave rectifier bridge for a bad diode as well.

I have the schematic but not an assembly drawing so description of near switch doesn't tell me enough.

Oct 29, 2010 | QSC PLX3602

5 Answers

Magnavox 19MF337B/27 LCD TV problems

The bad capacitors in this set are usually NOT on the power supply--they are on the other (logic) board. You will find several bulging capacitors there. Replace em all....

Nov 06, 2009 | Televison & Video

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