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  3. 165903-139433

Cary Audio SLA-70B amplifier

I have no schematics for my SLA-70B and Cary Audio no longer offer technical support on this very old [27 year old] amp.  The LED light on the front panel of my SLA-70B Signature Amp does not work [does not light up]. Upon my opening the bottom panel I noticed that the positive side of the LED was “just hanging in the air.  Also a resistor 100K 5W was totally blown up so I cannot take a reading of it at all.

[I don't know why I cannot include an illustration of the issue in question]

The negative of the LED is connected. The positive (orange wire) is just floating loose.  There is a resistor 100K 5W which is connected to GRD and the other side has blown up.

I do hope someone can allow me to upload an illustration. It will definitely help in solving this issue.
Thanks, richfrank

128x128richfrank
richfrank's avatar
richfrank OP
34 posts
 
Based on the pictorial I can see the connections, but I cannot determine the CORECT VALUES. The small (blow-up) resistor, is it actually 100K 5W ??  And the 2 that are parallel: are they RED/VIOLET/YELLOW  ??  I can't tell.

Do you know what are the correct values?
jond's avatar
jond
5,761 posts
 
That is a super simple hard wired amp is there a local tech you can take it to?
russ69's avatar
russ69
3,473 posts
 
I think I’d be all over Cary. HEY! Provide some service or provide the info I need to fix it myself. I’d get someone on the phone to tell me I’m SOL, then I would tell them, bad mistake, you guys are going to be my hobby, and it’s going to get ugly, your call.
oldhvymec
5,101 posts
 
OP that is what I found in 1 minute, honestly one minute..

I would look at ANY Cary. See how the power LED is wired up.. There's a hint, take it..

OLD HEAVY MASTER MECHANIC ret.

Regards
oldhvymec
5,101 posts
 
I could open up a Six Pac or V12r and take a peak. All I have on hand, currently. I'll bet they are all pretty close..

Regards.. 
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