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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.
NO RASTER NO SOUND Check +B voltage at J306. no 140V
no
Is there the square waveform at pin4 of P101 (H-out)
Is the voltage at pin 24 of IC01 5V?
0V
Check the part of Digital PCB ASSY
yes
Check/Replace IC803, D826, 827, 828, 829, T805, T801, 804 and Fuse (FC02). NG
Check the voltage of C834.
yes Check/Replace D801. 230~380V no Is the waveform at the collector of Q402 normal? Check the voltage at pin9 of IC801. Lower than 6V
Check/Replace Q401, T401and Q402. yes OK
Check/Replace D802, D803, Q801 and IC801.
Check/Replace T701 and CONNECTORS.
Check/Replace IC802, IC804, D810 and R832.
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