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/
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!
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.
Great manual very clear copied. You are making an incredible job. I appreciate a lot the rapidity and your efficiency. Thanks a lot
Text excerpt from page 18 (click to view)
AM (MW) Auto Scan/Stop Level Adjustment Make this adjustment after �FM Auto Scan/Stop Level Adjustment�. Setting: [SOURCE] button: MW
30 � 15 pF
65 pF
AM RF signal generator AM dummy antenna (50 �)
set
Carrier frequency : 999 kHz 30% amplitude modulation by 1 kHz signal Output level : 33 dB (44.7 µV)
antenna jack (J1)
Procedure: 1. Set to the test mode. (See page 15.) 2. Push the [SOURCE] button and set to FM. 3. Push the [MODE] button and set to MW. Display
MW
999 @
INTRO
4. Adjust with the volume RV1 on TU1 so that the �MW� indication turns to �MW0� indication on the display window. But, in case of already indicated �MW0�, turn the RV1 so that put out light �0� indication and adjustment. Display
