18 December 2008, 12:32 | #1 |
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CD32 and the capacitors (from hell)
Hello everybody!
Yesterday the sound on my cd32 started to break up in one of the channels and then half of the sound completely died. When opening it up I managed to locate to problem: leaking capacitor (marked with red ring in the picture). I substituted it with a cable and managed to get full sound again. Since I don't know much about electronics I don't know what this will do to the machine in the long run, but I guess it's not recommended. But what will happend? What capacitors can I replace it with? I also wonder about the two large capacitors next to the powercable. They look like they are going to explode, should these be replaced as well and with what kind of capacitors if so, have anyone done this? BTW the picture is not from my motherboard but it's the same rev3 model. |
18 December 2008, 13:28 | #2 |
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Going by the numbers written ontop of the capacitor you can identify the proper type/value and go to an electronics supplier and buy them.
Here is a good site to help you with the identification. http://library.solarbotics.net/piece..._cap_code.html |
18 December 2008, 14:53 | #3 | |
PSPUAE DEV
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I covered the 2 electrolytic caps in a post I done earlier this year. I have found with every CD32 the 2 caps were in the wrong way round, hence they are budged and leaking.
Remove them and replace them the correct way round. For the 1 you ringed, just replace with a standard electrolytic cap, 47uf (either 16v or higher). Heres the thread. http://eab.abime.net/showthread.php?t=28419 Quote:
Last edited by FOL; 18 December 2008 at 15:02. |
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18 December 2008, 22:04 | #4 |
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Thanks for the help too bad this machine have so many hardware faults. But what if I continue to use a cable instead of the cap for sound? Has anyone done this?
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18 December 2008, 23:46 | #5 |
Amibay Senior Staff
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@NGF
I would recomend replacing the cap with the type suggested by my good friend FOL. The capacitor ensures correct decoupling of the Audio output. TC |
19 December 2008, 01:58 | #6 | |
Amiga Nut
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Quote:
Might have something to do with the fact that it's an NTSC machine (different production run or something)? PZ. |
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19 December 2008, 08:59 | #7 | |
PSPUAE DEV
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Quote:
Out of interest is the print (text) on the board correct. If I remember correctly, on the white stripe was wrong but the + symbol was correct. |
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19 December 2008, 09:17 | #8 | |
Amiga Nut
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Quote:
PZ. |
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19 December 2008, 18:41 | #9 |
PSPUAE DEV
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Way to confirm, is probe on positive of cap and other probe on gnd. If it reads short, then its in the wrong way round.
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19 December 2008, 20:12 | #10 |
Registered User
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yep gotta replace those caps asap...just replaced my audio caps in my 1200 a few months back and the sound is back to sounding great...I would recommend practicing your soldering skills a bit before attempting to install the new caps as it was a bit tricky (for me anyhow)...search EAB and Amiga.org for great threads on this topic for help
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20 December 2008, 14:08 | #11 | |
Amiga Nut
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Quote:
PZ. |
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20 December 2008, 20:40 | #12 |
Amibay Senior Staff
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@Fingers
If it aint broke, then don't fix it comes to mind my friend Happy Christmas B TC |
20 December 2008, 22:16 | #13 | |
PSPUAE DEV
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Quote:
I would ask "whats the problem", they would then reply "nothing it needs a service". I would then reply "If it aint broke we aint touching it", besides 1210's dont go faulty often. |
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21 December 2008, 00:58 | #14 |
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21 December 2008, 16:25 | #15 | |
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Quote:
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21 December 2008, 17:00 | #16 |
PSPUAE DEV
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Nice, im guessing yours is a PAL machine, if so, I think we can safely assume all PAL CD32's have this issue and the NTSC one's dont.
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22 December 2008, 09:52 | #17 | |
Registered User
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Quote:
Going to pinch our soldering station at work and use that when the new caps turn up (only 25p a piece - might do all my Amiga's at this rate seeing as though they are sooo cheap) |
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22 December 2008, 12:46 | #18 |
Banned
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electrolytic caps are pure shit.....will fail through aging
that's why I purchase Gigabyte motherboards only with solid caps |
22 December 2008, 15:35 | #19 |
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22 December 2008, 15:51 | #20 |
Banned
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of course not but anyone can get the idea of Gigabyte and replace all the electrolytic caps inserted on any Amiga mobo
solid caps will lasts forever.... mmm...nothing lasts forever... solid caps will work for a long time without any kind of problems |
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