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Excellent service manual, the only known point of note is the alignment of improvability scanned pages within the pdf page. The resolution is good.
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I was very glad recieving the service manal from You. Additionaly very fast. Extremaly nice servicing. Thanks very mach! Now my GX-220 working better, than it was made. Alexander from Moscow, Russia/
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Sweet! I won the item on eBay and couldn't adjust the geometry or even keep a steady picure. This guide has the full schematics (not available anywhere else as far as I could tell), and was a bargain for the wealth of knowledge it contains. I hooked it up to my testing equipment, tweaked a few potentiometers and got it playing videogames in no time. Thanks!
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It was just what I need to fix my old BMW's CD player. Very convenient also. Thank you.
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Great Manual! It contains all the wiring schematics and mechanical exploded views that are essential for service and repair. I was surprised I even found this for such an old machine. Only wish I knew of this site many years ago.
TROUBLESHOOTING GUIDE
THE AUDIO CAN NOT RECORD
NO Is bias level at L101 OK? YES
In starting recording, is there sine wave at pin 11 of IC101? YES
NO
Check POWER BLOCK and voltage of base of Q103.
Check disconnection and short of L101.
Is there audio signal at pin 76, 78 and 80 of IC101? YES
NO
Check IC701 and the circuit from TUNER or audio input jack to IC701 .
Is there voltage of base of Q103 about 5V? YES
NO
Change Q103.
Is there a sine wave at pin 5 of L101? YES
NO
Change L101.
Check lead wire of A/C HEAD and CONNECTOR.
E-19
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