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

Sr oldhvymec. With all due respect to someone that appears to know what the problem is and knows how to fix it ...... It does no good to give me a "hint". This is not a school atmosphere. I have a problem and I am going to the "forum" and am asking for help. I cannot solve this problem either thru Cary Audio or by getting into the amplifier to track the problem if I do not know values. I know what a resistor is, what a cap is, lugs, etc. but if I do not have a value attached to the resistor or cap in the schematic and have no voltage values, I am stuck. So please, if you know the answer, don't give me a hint or tell me to open a 6-pak, HELP ME FIND THE SOLUTION. If you want to charge me for your knowledge, let me know, but don't give me hints. I am not a kid!

Does anyone have any idea the type and voltage/amperage requirements are for the power LED in the Cary SL-70B amp?  I have changed the resistors in question, and when I plug in the amp, the power fuse 3 AMP SLOW BLOW ---> BLOWS UP.  I'm thinking the power LED may be shorted perhaps? But where do I get a new one? What is the model number? When I walk into a tech shop and ask for a Power LED what other info is needed to obtain the correct one?

Hello all. I realize this thread is about the amp, but I have a problem with my Cary CD 306/200 and have run out of options. Does anybody have a schematic diagram for this player ? It’s been at the shop for months and they are not able to troubleshoot it and Cary calls it obsolete with no support. Any help or lead would be greatly appreciated. 

I have a problem with an old Hasselblad camera. Does anyone have the schematic?

Good luck on fixing your SLA 70. I ran the SLM 70 mono for years beautiful mid range.