Westinghouse L2210NW Power and ?

[SgtRock]

Greetings Badcappers:

--Just inherited a Westinghouse L2210NW Monitor. I have not opened it up yet, as I have to many others in pieces at the moment. But, it shows the typical power on problems caused by the original Samxon caps. I finally managed to get it to come on, but the picture is all vertical stripes (see picture). Could this be caused by a bad power supply? If so, I will crack her open, take pictures, and order good Digikey Panasonic Caps, immediately.

"In the heat of battle, my father wove a tapestry of obscenity that as far as we know, is still hanging in space over Lake Michigan."
Ralphie Parker

Best Regards
Clear Ether

[budm]

Re: Westinghouse L2210NW Power and ?

I have seen this in TV due to bad caps in the power supply, but also seen them due to bad T-CON board.
http://s807.photobucket.com/albums/y...t=DSC02476.jpg

[SgtRock]

Re: Westinghouse L2210NW Power and ?

Dear Budm:

--Rodger that. I guess I will have to crack her open and see if she needs anything besides caps. It may be a while, but I will report back. Thanks again.

"Happy for you to desoldering, please."
Wun Hung Lo 1948 -

Best Regards
Clear Ether

[SgtRock]

Re: Westinghouse L2210NW Power and ?

Greetings EEVBees:

--Well I opened her up and the P.S. board shows obvious signs of overheating (see picture). The Label for this unit shows May 2008, which I assume is a refurbish date. The 2 Watt 100 Ohm Resistor measures 296 Ohms, and surprisingly only one of the Capacitors (the domed one) measured bad. Of course I was not testing at the actual voltages encountered in the P.S. Below is a list of the results.

Westinghouse L2210NW P.S. Bad Parts List
100 Ohm 2 Watt Resistor measures 300 Ohms Bad Replace with 3 Watt.
2200 uF 10 V Cap measures Unstable&Domed Bad Replace.
1000 uF 25 V Cap measures 937 uF ESR is normal Good Replace anyway.
1000 uF 10 V Cap measures 956 uF ESR is normal Good Replace anyway.
680 uF 25 V Cap measures 600 uF ESR is Normal Good Replace anyway.
220 uF 25 V Cap measures 196 uF ESR is Normal Good Replace anyway.
82 uF 400 V Cap measures 76.3 uF ESR is normal Good Replace anyway.
33 uF 35 V Cap measures 33.2 uF ESR is normal Good Replace anyway.

--I have placed an order with Digikey good Nichicon and Panasonic Caps and the Resistor. I will report back when they are installed.

"But leave the Wise to wrangle, and with me
The Quarrel of the Universe let be:
And, in some corner of the Hubbub couch'd,
Make Game of that which makes as much of Thee.
"Omar Khyayyam" 1048 1131


Best Regards
Clear Ether

[SgtRock]

Re: Westinghouse L2210NW Power and ?

Greetings Badcappers:

Replaced the caps and the resistor. Now like new. See attached. Thanks

"A thing of beauty is a joy for ever:
Its loveliness increases"
John Keats 1795 -1821

Best Regards
Clear Ether

[budm]

Re: Westinghouse L2210NW Power and ?

Great job and thanks for the good news, it is really hard to be 100% sure that the problem is T-CON or bad power supply.