This service manual is a good copy of the original, complete and fully readable. It is really useful to repair my Tv set following its clear instructions.
Excellent quality. Easy process to download. No issues or problems at all - was exactly what I was looking for and needed. Great service.
Text excerpt from page 14 (click to view)
AH/AU-A079E AH/AU-A099E
TROUBLESHOOTING GUIDE OF CONTROL CIRCUIT
The machine does not function at all with remote control and switches on the indoor unit.
Using a tester, measure the voltage between terminal " 1 " and " 2 " of connector CN2 on PWB ass'y.
measure the secondary voltage of transformer.
Is the measured value approx. 16.0 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 2.5A fuse down ? NO