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15th December 2003, 02:59 PM
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#1 |
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diyAudio Member
Join Date: Aug 2002
Location: CA USA
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Sony Crystal PN#s anybody familiar?
Im having trouble identifying the clock speed in my Sony CDP 620/650ES players. The crystal is stamped with a set of numbers:
67.7376 336-11 KSS5C Since its a 1985 or so player it seems unlikely its a 67mhz clock. Can anyone make sense of these numbers? |
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15th December 2003, 06:47 PM
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#2 |
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diyAudio Member
Join Date: Mar 2002
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I'd try to get a service manual
It may actually be those MHz. AFAIK it's just a crystal, not an XO, and those were used on radiofrequency applications long before '85.
If you're going to tweak it, I'd look for its service manual. it's an invaluable tool for mods and tweaks. In this case sourcing a 67MHz XO maybe problematic; if you know which DAC it's using you may work around that. I got the service manuals for my Sony MDS-JA20ES and CX54 from www.user-service-manuals.com. Ask if it is available... good luck! |
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15th December 2003, 07:32 PM
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#3 |
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Banned
Join Date: Dec 2001
Location: Zamboanga, City of Flowers, Mindanao
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Unkwown Crystal
Hi Pukka and Fritz,
I fear Pukka is right about the crystal. It could very well be a 67.7376MHz crystal. I Googled for 67.7376 and guess what did I find: It is used in a Sony CDP-302ES and a Kenwood L-1000D. The latter was on a site of Octave Electronics. So I am very sorry for you as this type of crystal won't work in the KWAK-CLOCK. Good luck, 
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15th December 2003, 10:30 PM
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#4 |
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Banned
Join Date: Feb 2002
Location: As far from the NOSsers as possible
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Doesn't sound promising......that has to be an overtone type. Needs circuit tweaks t0 make any circuits that you might find here.
OTOH.......since it probably uses 16.9344 MHz (or 384 x 44.1 kHz) anyway............... Jocko |
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15th December 2003, 10:37 PM
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#5 | |
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Banned
Join Date: Dec 2001
Location: Zamboanga, City of Flowers, Mindanao
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Sony's crystal
Quote:
Yes that occurred to me too. 16.9344 MHz is probably divided down from 67.7376 MHz by exactly 4. But it will require more surgery in the player and insight. We will need a servicemanual. Thanks for the help. 
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15th December 2003, 11:28 PM
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#6 |
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diyAudio Member
Join Date: Aug 2002
Location: CA USA
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Well maybe its time to build a CD pro or just pick up something used on Ebay. I didnt want to give up on the player since it is the only audio product Ive purchased new. What would be a good used player to look for?
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