Did you try pumping in a sine wave from a function generator and tracing from the input until it loses audio? I'd be suspect to dirty contacts,dirty tape monitor switches. I have a 2270 that I use for a stereo in my waiting area. If you have any more specific questions I would be glad to help you. Frank Rs-Tek Inc rs-tek@xxxxxxxxxx ----- Original Message ----- From: "Hung Van Nguyen" <hungvnguyen@xxxxxxxxx> To: <techassist@xxxxxxxxxxxxx> Sent: Tuesday, February 05, 2002 9:51 AM Subject: [TechAssist] Old Marantz receiver model 2270 > > Hello Techs, > An old Marantz receiver ,model 2270,in shop with a problem as :very low > audio output. > Spent 5 hrs still not fixed.Any help is appreciated. > Thanks, > Hung > > > ------------------------------------------ > Make your TechAssist database better! > Submit Repair Tips here: http://www.tech-assist.org/secure/tip/ > ------------------------------------------ > To UNSUBSCRIBE your email address, click here: > mailto:techassist-request@xxxxxxxxxxxxx?subject=unsubscribe > Or send a BLANK email with unsubscribe in the > SUBJECT field to the address above. > > ------------------------------------------ Make your TechAssist database better! Submit Repair Tips here: http://www.tech-assist.org/secure/tip/ ------------------------------------------ To UNSUBSCRIBE your email address, click here: mailto:techassist-request@xxxxxxxxxxxxx?subject=unsubscribe Or send a BLANK email with unsubscribe in the SUBJECT field to the address above.