Easy way to fry Rotel RCD855 - help needed - diyAudio
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Old 23rd June 2005, 04:36 PM   #1
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Default Easy way to fry Rotel RCD855 - help needed

Hi,

While doing nonos mod (done that before, successfully), becouse I can't count more then 10 pins rightly, I conected pin 23 from SAA7220 to pin 12 insted of pin 11 of SAA7210 to restore mute funcion. All I got after "mod" is error message at dispay, really hot SAA7210/7220 and TDA1541A, dics doesn't spin, lader is working though, voltages for Philips chipset seems to be OK.

Any hint how to fix it, thank you?
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Old 23rd June 2005, 06:31 PM   #2
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Oh...that's a shame.... ....u have destroyed the chips i guess. . the TDA1541 should be still safe. any chance of finding a cheap old philips player , perhaps with dead lasers to cannibalise the SAA7210 , 7220?
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Old 23rd June 2005, 06:54 PM   #3
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Hi commstech,

I have both off them brand new, no prabs there, but what else could went wrong, how to confirm they are? I REALLY don't want to make mistake any more, at list in this player

Best
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Old 12th July 2005, 12:25 PM   #4
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I've just changed the SAA7210 & SAA7220 for new ones, nothing new happend Anyone out there with service manual for Rotel RCD-855, I really, really need one for sure...Any sugestion in the meanetime?
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Old 14th July 2005, 12:52 PM   #5
Gasho is offline Gasho  Croatia
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I would like to help you. Maybe you also burned clock circuit?
I donīt have sheme , but I think if player donīt read cd , there is something wrong with that part of player. DAC chip really donīt have much influence on player that donīt read discs.
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Old 14th July 2005, 01:26 PM   #6
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Yes, you are probably right about that, my guess is that I also burned a Motorola DSP procesor and/or servo controler and who knows what... Is there a kind soul willing to donate/sale Motorola chip from old Philips/Marantz players with designation:

SC99659P
612706-1
L1 5B13A9009
CIPGL
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Old 18th April 2006, 10:20 PM   #7
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Hi guys,

I'm very happy to inform you that I manage to fix my Rotel RCD-855, thanks to Dave Stocks (S-Man) from G.B. who was kind and sent me a service manual. One BC338 and 74HCT05 went bad, and that's it . If someone needs a manual, drop me a mail...

Ciao, a
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Old 11th January 2007, 09:29 PM   #8
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Exclamation service manual

pls,whoever have rotel rcd855 manual....i really need it badly....thank you...
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Old 11th January 2007, 09:38 PM   #9
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Default Re: service manual

Quote:
Originally posted by tone arm
pls,whoever have rotel rcd855 manual....i really need it badly....thank you...
Just hit me with your e-mail.
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Old 12th January 2007, 09:32 PM   #10
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Default rcd855 service manual

Diz is my email, shanniv@hotmail.com, i appreciated it very much and thank you aparatusonitus.
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