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Vintage Audio (record players, hi-fi etc) Amplifiers, speakers, gramophones and other audio equipment. |
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1st Feb 2009, 2:49 pm | #21 | |
Nonode
Join Date: May 2005
Location: Godalming, Surrey, UK.
Posts: 2,593
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Re: More Marantz CD73 problems
Quote:
Howard |
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1st Feb 2009, 3:24 pm | #22 |
Nonode
Join Date: Aug 2007
Location: South Bradford, West Yorkshire, UK.
Posts: 2,571
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Re: More Marantz CD73 problems
From memory the connector is hard wired as are most of the interboard connections. When I replaced the LM317 I just removed the PSU from the chassis as you have done leaving all the wiring in place. It's slightly more awkward but saves having to remember where all the connectors go. I'm sure I ran the player with the PSU out of the chassis, to check the voltages, just needed to ensure the pcb didn't touch the chassis.
Keith |
1st Feb 2009, 6:38 pm | #23 |
Nonode
Join Date: May 2005
Location: Godalming, Surrey, UK.
Posts: 2,593
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Re: More Marantz CD73 problems
Thanks Keith,
We weren't sure if it came off or not so didn't attempt to prise it off. It would've made the PSU easier to work on if it had come off. Howard |
5th Feb 2009, 11:45 pm | #24 | |
Retired Dormant Member
Join Date: Feb 2009
Location: Serbia Belgrade
Posts: 1
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Re: More Marantz CD73 problems
Quote:
I'd be very gratefull if you would be so kind to e-mail me the cd73's service manual. I own this /master/ piece, in a full working order, but would like to have it a bit ''upgraded'', if possible of course. A friend of mine is to do it, but needs a scheme. Thx and enjoy your 73 |
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10th Feb 2009, 7:34 pm | #25 |
Nonode
Join Date: May 2005
Location: Godalming, Surrey, UK.
Posts: 2,593
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Re: More Marantz CD73 problems
Hello koksgxxx,
My CD73 service manual is a 27Mb PDF so it's too large to Email I'm afraid. Sorry about that. I should leave your CD73 original, it needs no upgrading, it's an excellent machine asis. Howard |
10th Feb 2009, 7:43 pm | #26 |
Nonode
Join Date: May 2005
Location: Godalming, Surrey, UK.
Posts: 2,593
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Re: More Marantz CD73 problems
In fact it comes off (with a bit of care), which makes the overhaul of the PSU much easier.
All the electrolytic capacitors in the 18v rail have now been replaced and the crackling and hum has all gone. The old 2 x 100uf caps tested at 4.5uf and 40uf ! Howard |
4th May 2009, 12:59 am | #27 | |
Retired Dormant Member
Join Date: Apr 2009
Location: clapham, london
Posts: 2
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Re: More Marantz CD73 problems
Quote:
am new to this forum,would love to find out where to take my marantz CD73 for repair, as its suffering from the exact same problem as yours, loud hum followed by crackling, its driving me nuts as i loved listening to it, i am based in London, any details would be greatly appreciated, and for the record i think its an astonishing sounding player and cant wait to have it up and running again. |
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4th May 2009, 7:12 pm | #28 |
Nonode
Join Date: May 2005
Location: Godalming, Surrey, UK.
Posts: 2,593
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Re: More Marantz CD73 problems
Hello Kafka,
The only repairer of old hi-fi that I know of in London is Mike Solomons ... http://www.londonsound.org/ However CD players aren't mentionned on his website although he might do just the power supply. If not, you can bring or send the CD-73 down to Godalming and we can check the power supply and if it's faulty we could repair it for you. Send me a PM if the above can't accomodate. Howard Last edited by howard; 4th May 2009 at 7:38 pm. |
10th May 2009, 2:16 pm | #29 |
Retired Dormant Member
Join Date: Apr 2009
Location: clapham, london
Posts: 2
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Re: More Marantz CD73 problems
Hi Howard
Appreciate the info, will be calling Mike Solomons first thing Monday, after reading numerous troubleshooting forums on the cd73, the power supply is looking like the main culprit, will let you know how i get on with MS, and once again thanks for the help. regards Kafka. |