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.
Text excerpt from page 45 (click to view)
VSX-607RDS, VSX-407RDS
7.3 DIAGNOSIS
POWER AMPLIFIER IC (MOTHER ASSY : IC401 and IC402) (At Bottom Side)
1
Cut six portions on the Under Base by nipper and remove a Cover. Front
3
Turn the Cover.
A
B
B
A
4 2
Diagnose the POWER AMPLIFIER IC (IC401 and IC402). Front
1
Fix the Cover with the four screws (BBZ30P080FMC). Front
IC401
22 1
IC402
22
CAUTION : After cutting it with the nipper, dispose of it not to injure by touching the cut part to an user's hand.