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Old 27th January 2008, 07:02 PM   #1
mcelaj is offline mcelaj  United States
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Default Muse capacitor...

Hi All,

I recently lost the left channel on my Muse Model Two DAC. I opened the unit up only to find a capacitor was broken. The body of the capacitor was literally broken in two. Anyway the capacitor is located in the corner of the pcb and is soldered to the ground on the pcb and then is soldered to an metal piece (U shaped) that is placed (held in place) between the screwhead that holds the pcb to the metal standoffs and the pcb. The capacitor is tiny (2-3mm in length, 1/8 of an inch) and mustard colored. It has the following markings on it:

A triangular symbol with G52 under it on one side of the capacitor.

103 with KC5 (KCS) under the 103 on the opposite side of the capacitor.

I thought the best course of action would to be to replace the broken capacitor with a new one and replace the others channels same capacitor as well to keep the both channels in sync, so to speak. Am I correct in reading the codes on the capacitor as a 0.01uf capacitor? Perhaps someone has suggestions, tips to steer me in the right direction...

Regards,
mcelaj
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Old 28th January 2008, 12:27 PM   #2
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seems to be 10 000pF or 10nF as you wrote.

Depending on the space available, you can use a Russian Teflon cap FT-1 (ebay), Wima FKP-2 (special audio) or vishay MKP1837 (both at farnell for example).
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Old 28th January 2008, 01:07 PM   #3
poynton is offline poynton  United Kingdom
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It goes from ground to ground !!

So not a signal cap then.

Is it a safety device (spark gap) rather than a cap ????
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Old 28th January 2008, 01:33 PM   #4
mcelaj is offline mcelaj  United States
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Quote:
Originally posted by poynton
It goes from ground to ground !!
This is what I summazed...?

Anyway here is a picture of both sides of the broken component and a picture of the one that is still intact on the pcb:
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Old 28th January 2008, 01:35 PM   #5
mcelaj is offline mcelaj  United States
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The cap...?
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File Type: jpg p1270023.jpg (57.1 KB, 255 views)
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Old 28th January 2008, 01:38 PM   #6
mcelaj is offline mcelaj  United States
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The cap (side two)...?
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File Type: jpg p1270022.jpg (60.0 KB, 232 views)
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Old 29th January 2008, 02:36 AM   #7
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That's just a ceramic monolithic .01uf cap, being used as an RF ground, to prevent ground loop RF interference. It is certainly not the cause of a channel problem. Looks like it broke simply from mechanical stress from the way it was used straight to the screw-down lug like that. Any .01uf(+ or - like 300%) ceramic or film cap will do just fine as a replacement.
You channel loss, however, is a completely other issue.
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Old 3rd February 2008, 01:40 PM   #8
mcelaj is offline mcelaj  United States
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Thank to all who've helped.
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