I am only search for 5 Minute, by it in 5 Minutes to and get ist in few ours! Best i found in the Internet and my Amplifer is repaired as well! Thank you
Readable text and good copy. Very much needed if you wish to do some repairs on this fine old unit.
Text excerpt from page 13 (click to view)
AH-A07CR AH-A09CR AH-A12CR
TROUBLESHOOTING GUIDE OF CONTROL CIRCUIT
The machine does not function at all with remote controller and switches on the indoor unit.
Using a tester, measure the voltage between anodes of D1 and D2 on PWB ass'y.
measure the secondary voltage of transformer.
Is the measured value approx. 17.0 Vac ?
NO
YES Replace the PWB with a new one. YES Replace the fuse and varistor with new ones. Replace the ftransformer with a new one. Is the 3.0A fuse down ? NO