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jts1957 |
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DMW649 |
Posted: Thu Nov 04, 2010 2:37 pm Post subject: |
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Where can I get these caps that match the part numbers? Thanks, Dennis |
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jts1957 |
Posted: Thu Nov 04, 2010 3:20 am Post subject: |
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Better check bridge rectifier diodes in D951 (at least in power supply).
Man you're jumping all over the chassis. I don't see how the set was working - even for error codes
C451 181P186000 C-ELEC-50V 100M-M 105C
C903 189P185070 C-CER - AC250V E1000P-M
C904 189P185070 C-CER - AC250V E1000P-M
C951 189P185090 C-CER - AC250V E2200P-M
C952 189P185090 C-CER - AC250V E2200P-M
C954 189P185090 C-CER - AC250V E2200P-M
C955 189P185090 C-CER - AC250V E2200P-M |
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Guest |
Posted: Thu Nov 04, 2010 2:56 am Post subject: |
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jts1957 need some help with cap numbers to order them. C451 was able to read A9939 105c 100uf 50v. I'm unable to read the 900 caps they melted and are now gray goo. Here are the bad caps C903,904,951,952,954 & 955. Would appreciate the uf/v info so I can order them. Thanks, Dennis |
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DMW649 |
Posted: Thu Nov 04, 2010 1:48 am Post subject: |
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Jts1957- Thanks for help and fast reply. Dennis |
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jts1957 |
Posted: Wed Nov 03, 2010 11:40 pm Post subject: |
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You're the "captain piloting the ship," the "nut behind the wheel," etc.
You decided the STK chips were involved.
Your evidence for this is?
DMW649 wrote: |
Not sure what you mean but I think you mean the convergence IC's on the heat sink part # STK392-110 Sanyo two of these. |
I'll agree with the 900 series caps, Vert. IC. Also C451 100ufd. |
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Guest |
Posted: Wed Nov 03, 2010 10:33 pm Post subject: |
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Hi folks just want to thank you for your help and quick responses. I took out the chassic over the w/e and upon inspection I found a few caps blown on the main board(Cap 903,904.951, 952,954,& 955). I looked for leaking fluid from the crts, not there this time. I replaced a few caps last time and it worked fine since. Anyway does these blown caps shed light on a different problem, or should I go ahead and replace ICLA7845N, two stk392-110, caps C411 & C412 along with the other caps above that I know are bad. Need a little advice on what to do and what parts to order. Thanks, Dennis |
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minnie |
Posted: Thu Oct 28, 2010 1:32 pm Post subject: |
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jts1957 wrote: |
VERTICAL DEFLECTION IC LA7845N IC451. |
He is correct! Sorry been busy... I also forgot to tell you to check for fluid on the signal board from leaking CRT tubes.... |
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jts1957 |
Posted: Wed Oct 27, 2010 11:23 pm Post subject: |
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VERTICAL DEFLECTION IC LA7845N IC451. |
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DMW649 |
Posted: Wed Oct 27, 2010 10:01 pm Post subject: |
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I want to have all the parts on hand that are most likely the culprit. I'm trying to gather what I will need. Here is what I think I need so far:
1. (2) STK392-110 for IC8C01 &02
2. (1) 2200UFD35V for C411
3. (1) 10UFD50V for C412
4. New heatsink lube for IC's
5. I'm not sure but I read somewhere to check the pico fuses that supply the 24 volt (+/-) to the convergence IC's that sometimes go bad. I'm looking a view of IC8C01 would the pico fuses be connected to 4&8 (-24V) and 5&10 (+24V). Not sure if these are even the fuses? The chart does not say where they are or what size they are. Any help would be appreciated. I'm just going to try this once and have whatever parts that are most likely the prime suspects on hand. Just trying to save this set from the scrapyard. |
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