Question about JBL PSW-D110 Speaker

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Recently rebuilt psw d110 subwoofer won't power up.

I just got a rebuilt JBL PSW-D110 from a frend. It was supposedly just rebuilt but I get no power of any sort when I plug it in. Whereis the best place to start troubleshooting?

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  • Dave May 11, 2010

    Some subs go in 'soft on' mode until they receive a signal from the AMP via the RCA connected cable. Not sure if this is your case, but did you also try to connect the amp with an RCA and play something?

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Please verify that we're talking about a JBL PSW-D110 here. I'm making no assumptions.

Are you running the Ipod into its L & R RCA jacks as prescribed?

Have you tried it with something besides the Ipod? A sub isn't supposed to reproduce a full range signal. Come to think of it, is the Ipod even outputting anything within the sub's operational range? I don't expect a lot of real bass comes out of one.

Perhaps you could try adjusting the Low Pass up to 180 to see if anything anywhere near the 'real' bass region is present.

Bottom line: There's not a lot of need for a sub (and no other speakers) running off of any music sound source. You wouldn't hear anything above 180hz.

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How do you disassembly the JBL PSW_D110?


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Not likely. There are no fuses according to the instructions I found for the D-110. I assume they're about the same.

Try it with nothing attached anywhere except the power cord. No light immediately = dead.

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Hi calsunbelt

there are some caps that fail in the power supply. If you are up to doing some electronic repairs, I could talk you through it and tell you what parts to check.

regards
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1 Answer

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If I remember these correctly, there is a bad coupling cap in the amp section. You should see it as the top should have ballooned up. Replace the cap and you should be OK.
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