hifi engine

Pioneer A-120D

Good day!!

Please consider my humble request to provide me a pdf file, if there's any, for the Pioneer A-120D service manual. I bought this powerful unit sometime in 1984 and works fine over the years. Just few months ago, it suddenly turned off and its fuses blown up. A competent technician serviced the unit and could not repair for some resistors were burned in the amplifier circuit, hence color codes are not readable.

thank you very much and regards,

Richard, Service Manual for


Service Manual for Pioneer A-77X uploaded to HiFi Engine.
This is possibly the same as yours, only for the European market.
In a few days the manual should appear on the forum.
Good luck with repairs



Service manual for A-120D

Dear Richard

I don't have service manual but i have one amplifier A-120D. If you need the information for the resistor, please point out the name of resistor so that i can open the amplifier to read the value for you.