Hey.

I am trying to repair a Magnavox 32" LCD TV. When I turn it on the backlights flash on for about a tenth of a second. I opened up the panel and checked the backlights. One was broken and I replaced it. However, nothing changed and I believe I may have broken the backlight while trying to open the lcd. I have checked the inverter board for power and the ON signal. It has both, as well as 5v at the inverter ic VCC pin. All of the transformers seem to check out fine, 2 bars on a flyback tester. However, one transformer has a slightly higher resistance (1.78k instead of 1.35k)...

Re: Samsung 223bw

I'm going with higher voltage because its the right size and in stock. I just found the Nichicon PJ, PS, and TS series are for switching power supplies, but these are not listed on the good list. Are these good to use, since I'm repairing the power supply in the monitor?

Re: Samsung 223bw

Is the Nichion HD series 330 uF 35V 105 degree capacitor a suitable replacement for the Samsung XC series 330 uF 25V 105 degree capacitor?

Re: Samsung 223bw

Is it okay to use a higher voltage? Do you think it would be better to use higher voltage with the same lead spacing, or right voltage with smaller lead spacing and bend the leads?

Re: Samsung 223bw

I've checked all the capacitors on the good capacitors list and I only found a few that are the rights size that are carried at digi-key or mouser. The HV Nichicons are the only ones of the right size, but there is no stock of one value that I need. I don't think that I should mix series... Any advice? I can't wait 12 weeks leadtime and I can't order larger caps. The current ones barely fit.

Re: Samsung 223bw

Also, the FM and FC series Panasonic capacitors are too tall (25mm instead of 20). It seems that low esr caps are taller.

Re: Samsung 223bw

I can't find anything on the Samsung XC series capacitors. They sold their capacitor business in 2002.

Re: Samsung 223bw

Thanks for the reply. I'll definitely check out Digi-key. Low esr capacitors apply to monitor inverter boards as well as to MOBOs, right? Do they also need to be low impedance?

Hey,
I'm a homeschooled college student starting an electronics repair business in my basement. I've got a Samsung 223bw monitor as my first outside job (I've repaired two of my own monitors). I opened it up and noticed several bloated caps. They are Samsung XC series caps, 105 degrees, 25v, and 820uF and 330 uF. I am getting replacements for these on mouser. Will general purpose capacitors work okay, or do I need low impedance or low esr? Should I recap the whole board or just the bloated ones? Your help is greatly appreciated!