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Post by analogrocks on Apr 14, 2016 19:39:12 GMT -5
Hi Mac, I've fixed this TV 3 times with new power IC's.
The problem being it keeps blowing the MCZ3001DB IC's.
The first set of IC's were in there 2 years, the new IC's last only about 3-4 months. Is there anything I should check to determin why these are blowing out? The other behaviour today was as follows: TV was already on, PS3 ( hooked to DVI port ) as soon as the PS3 was powered on the TV shut itself off.
I have one set of IC's left; instead of just pluggin them in and blowing them out I'd rather troubleshoot this abit.
Chassis number: DA4 SCC-570F-A Serial number: A805601
HALP! |
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Post by mastertech on Apr 14, 2016 21:28:51 GMT -5
Are they both blowing or just one of them?
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Post by analogrocks on Apr 14, 2016 22:38:13 GMT -5
Are they both blowing or just one of them? I'm not actually sure. I've been replacing them in pairs each time. |
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Post by analogrocks on Apr 15, 2016 6:41:29 GMT -5
Also found this:
He talks of replacing 2 diodes. Could this affect the TV here too? If so which pair of diodes would I change? I notice there are two, one beside each MCZ3001DB IC. Could these be the ones?
Keeping in mind this is a different model TV.
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Post by mastertech on Apr 16, 2016 8:59:19 GMT -5
Your tv does not have that circuit so that fix is not relevant.
If you keep blowing these ic's I have to wonder if the replacements you are getting are any good.
Assuming they are then I can only suggest changing the electrolytic caps surrounding those 2 ics and then after it is running ok, test the voltages on the pins shown in the attached picture.
Edit: Picture on other PC. Will post it later.
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Post by mastertech on Apr 16, 2016 13:32:50 GMT -5
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