Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems.

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Richard Steinfeld
 
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Default Yamaha R-8 Receiver (Attn: Leonard Caillouet et al)

Hi.

I'm reposting a query from 3/21 that got lost in a thread
regarding a Yamaha cassette deck. My question involved my R-8
receiver (but there followed a string of exchanges between
Leonard and Mark Zacharias regarding a couple of matters
involving Yamaha warranty handling -- I never got a reply).
Please, again...

My R-8 receiver has lost its memory. I'm trying to determine
whether to have the memory cap/battery replaced, use it as a
power amplifier only with a separate control preamp, or what?
When you say, "low point," what do you mean? Is it construction,
parts, sound? I've not been able to come up with much information
about this product so I'd appreciate knowing more.

My training is as a musician; I've been a musical instrument
service technician and worked in audio, so my desire in
reproduction is for 20-20 accuracy without going off the deep
audiophile end. I ran a custom stereo business a while back
centered on in-home whole-system turnkey
problem-solving-improvement. This included repairs and custom
modifications.

I bought the receiver from my late circuit technician, Paul
Margen, of Berkeley, California. Paul passed away a few months
ago. He was a person of high ideals and generosity: he will be
missed by many.

Richard

Leonard Caillouet wrote:
| Yamaha, like everyone else makes some equipment that is less
| than impressive. The R-8 was one of the low points in their
| receiver line. The current receiver products are mostly
| top-grade, relatively speaking. The current cassette decks
| are typical of most of the newer decks and are very poorly
| constructed.
|



Thanks for your input, Leonard.


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Mark D. Zacharias
 
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Default Yamaha R-8 Receiver (Attn: Leonard Caillouet et al)

Sorry - didn't mean to stiff you there....

I don't believe Leonard meant poor quality, just a lower-end Yamaha model
compared to their bigger stuff.

Quality is OK, serviceability not as good. Replacing that backup cap is a
bigger job than you'd expect. My shop would have to charge at least about
100.00 for the job, and believe me we don't consider the job a profitable
one.

Mark Z.

--
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have rendered my regular e-mail address useless.


"Richard Steinfeld" wrote in message
...
Hi.

I'm reposting a query from 3/21 that got lost in a thread
regarding a Yamaha cassette deck. My question involved my R-8
receiver (but there followed a string of exchanges between
Leonard and Mark Zacharias regarding a couple of matters
involving Yamaha warranty handling -- I never got a reply).
Please, again...

My R-8 receiver has lost its memory. I'm trying to determine
whether to have the memory cap/battery replaced, use it as a
power amplifier only with a separate control preamp, or what?
When you say, "low point," what do you mean? Is it construction,
parts, sound? I've not been able to come up with much information
about this product so I'd appreciate knowing more.

My training is as a musician; I've been a musical instrument
service technician and worked in audio, so my desire in
reproduction is for 20-20 accuracy without going off the deep
audiophile end. I ran a custom stereo business a while back
centered on in-home whole-system turnkey
problem-solving-improvement. This included repairs and custom
modifications.

I bought the receiver from my late circuit technician, Paul
Margen, of Berkeley, California. Paul passed away a few months
ago. He was a person of high ideals and generosity: he will be
missed by many.

Richard

Leonard Caillouet wrote:
| Yamaha, like everyone else makes some equipment that is less
| than impressive. The R-8 was one of the low points in their
| receiver line. The current receiver products are mostly
| top-grade, relatively speaking. The current cassette decks
| are typical of most of the newer decks and are very poorly
| constructed.
|



Thanks for your input, Leonard.




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Sam Goldwasser
 
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Default Yamaha R-8 Receiver (Attn: Leonard Caillouet et al)

"Richard Steinfeld" writes:

My R-8 receiver has lost its memory. I'm trying to determine
whether to have the memory cap/battery replaced, use it as a
power amplifier only with a separate control preamp, or what?
When you say, "low point," what do you mean? Is it construction,
parts, sound? I've not been able to come up with much information
about this product so I'd appreciate knowing more.


Mine lost its memory when powered off about 10 years ago. It still retains
memory if turned off via the remote. Is that the same with yours? I believe
there is a supercap or something similar in there that retains the memory.
I have the schematics and check but it never was important enough to repair.

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JURB6006
 
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Default Yamaha R-8 Receiver (Attn: Leonard Caillouet et al)

I got one with a bad power transformer. Yall keep that in mind if you need
parts.

No knobs though, sent them off to Bob Parker for a buddy of his.

JURB
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