Genuine Service Manual. Link was available in less then an hour or so. Service Manual contains assembly, PCB layout, complete circuit diagram, Components list etc
I'm quite impressed. I had to wait 24 hours for my manual (quite a rare one) but I got it and the quality was good. Also, from trawling the web, these prices are by far the best.
Manuale perfetto. Ottimo e utilissimo. Grazie a questo manuale ho potuto realmente risolvere il complesso problema della stampante.
Text excerpt from page 4 (click to view)
GF-480 3 ADJUSTMENTS AND CHECKS
3-1 TUNER SECTION
Use a screwdriver with a plastic or ceramic grip for all adjustment.
3-1-1 FM adjustment
1. Set the function switch to the FM position. 2. Connect the signal generator output through a 75 ohm dummy antenna to "ANT" on MAIN PCB. 3. Connect the oscilloscope to the speaker terminal. 4. Set the signal generator as listed in the alignment chart.
3-1-2 AM adjustment
1. Set the function switch to the AM position. 2. Connect the test loop antenna across the output of the signal generator. 3. Connect the oscilloscope to the speaker terminal. 4. Set the signal generator as listed in the alignment chart.