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Russell H.
Russell H., Computer Support Specialist
Category: Email
Satisfied Customers: 11046
Experience:  Proud to have been getting computer technicalities into working order since 1988.
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Zenith mk2635,left side speaker inop

Customer Question

zenith mk2635,left side speaker inop
Submitted: 9 months ago.
Category: Email
Expert:  Russell H. replied 9 months ago.

Hi, thank you for contacting My name is Russell. I will do my best to provide the right answer to your question.

Do the tubes - all of them - in the amplifier light up when powered On?

(If not, the power for the cathode heater is missing. That will indicate to check connections for that power, and components from there.)

Examine (after cleaning dust off, as needed, but quite thoroughly and with the power Off and unplugged for sure) the circuitry. Are there any brown components, brown spots on the boards, leakage from capacitors, etc.?

(Note: capacitors that leak from that era of equipment, esp. any tarry dark sludge, should be treated with extreme caution and care. Many capacitors in those days had PCB electrolyte in them, which is toxic and carcinogenic.)

Check generally for broken solder joints, loose or decayed or frayed wires / connections, etc.

When it doubt, swap speakers also. At least once. Leaving wires in place, but re-doing at the speaker end (if possible) just to be quite sure.

Let me know what you find, and I will advise you further toward a solution for this problem.

Customer: replied 9 months ago.
im just getting to your reply,i think i will do the speaker swap first and get back to you,its easiest
Customer: replied 9 months ago.
i will also double check tube status,oh what does the amp look like?