Excellent product, very clear print. Detailed circuit and assembly diagrams - this enabled me to repair my CD player with confidence. I highly recommend this site.
Great manual, great price. Has a few of the basic operating instructions that most service manuals leave out. Complete instructions for disassembling board by board, safety precautions, schematics, complete parts list.
I am very pleased with the service manual for my RT-909. This was an easy purchase and great procuct, and much cheaper than other venues i had looked at. This web site is now listed in my favorites list. KEEP UP THE GOOD WORK. THANKS. J. BROWN
Text excerpt from page 23 (click to view)
AY-M09AE AE-M18AE
The room is not cooled at all or not cooled. The compressor does not operate.
The room is not heated at all or not heated. The compressor does not operate.
Push the "TEST" and "AUX" on the indoor unit.
Same as "The room is not cooled at all or not cooled.
Refer to trouble suspension table.
Measure resistances of TH1 and TH2.
Three LEDs are all lit.
Using a tester, measure the voltage between terminal"1" and "2" of connector CN2 on the P.W.B. ass'y.
Measure the secondary voltage of transformer.
Is the measured value approx. 16.0Vac ?
NO
YES Is the 3A fuse down ? Replace the PWB with a new one. YES