Help on Philips CD100

khjen · 6th June 2007, 04:38 AM

I'm trying to restore a Philps cd100 and need some advice.

The player plays OK in recognizing the TOC and number of tracks on a CD. CD plays OK and eye signal looks good at 1.2v p-p.

Only problem is that there's no audio out!

I have the specs for the SAA7000, 7010,7020,7030 and TDA 1540 and have been trying to scope out where the problem is but am not familiar enough with what to expect. Clocks and digital signals seem to be present but there's no output at the TDA1540.

I'm going to replace all the Philips radial electrolytics next but was wondering if anyone has experienced the same problem before and has suggestions for what I should be trying next.

Thanks!

poynton · 6th June 2007, 05:01 AM

edited after re-reading the post.

Don't go mad replacing the caps. Start with the power supply and then the decoupling caps.

Replace in stages or you may introduce more faults.

Andy

es44 · 6th June 2007, 05:17 AM

Hi kjhen. Maybe you can find something useful here: Another cd100 thread
Good luck with your "oldie but goodie".

Best regards Ebbe

6th June 2007, 04:38 AM	#1
khjen diyAudio Member Join Date: Jun 2006	Help on Philips CD100 I'm trying to restore a Philps cd100 and need some advice. The player plays OK in recognizing the TOC and number of tracks on a CD. CD plays OK and eye signal looks good at 1.2v p-p. Only problem is that there's no audio out! I have the specs for the SAA7000, 7010,7020,7030 and TDA 1540 and have been trying to scope out where the problem is but am not familiar enough with what to expect. Clocks and digital signals seem to be present but there's no output at the TDA1540. I'm going to replace all the Philips radial electrolytics next but was wondering if anyone has experienced the same problem before and has suggestions for what I should be trying next. Thanks!

6th June 2007, 05:01 AM	#2
poynton Magneto the Gravity Man diyAudio Member Join Date: Mar 2005 Location: A life on the ocean waves when I'm not at home in N. Wales (but I'm not Welsh so no sheep jokes!)	edited after re-reading the post. Don't go mad replacing the caps. Start with the power supply and then the decoupling caps. Replace in stages or you may introduce more faults. Andy __________________ If it ain't broke, break it !! Then fix it again. It's called DIY !

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6th June 2007, 05:17 AM	#3
es44 diyAudio Member Join Date: Apr 2005 Location: Fredericia, DK	Hi kjhen. Maybe you can find something useful here: Another cd100 thread Good luck with your "oldie but goodie". Best regards Ebbe

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