Good qulity. Even as it is an old manual (from 1991-1992) it has a good scanned quality and is complete, including user's manual, disassembly intructions, diagrams and schematics, ajustments, troubleshooting and parts list, as usual with SONY manuals and Owner-manuals service.
Text excerpt from page 15 (click to view)
No 5.0VD
YES
No 3.3V
YES
Is there about 5.3V NO at the IC153 pin 1?
YES
Check 5.3VA on SMPS Board
Is there about 3.8V at NO the IC152 pin1?
YES
Check or Replace the D127
Is there about 4V ~ 5V at the IC153 pin 4?
YES
NO
Check the �PWR CTL H� signal from µ-COM
Is there about 4V~ 5V at the IC152 pin4?
YES
NO
Check the �PWR CTL �H��signal from µ-com
Check the IC153 and Replace
Check the IC152 and Replace
No 2.5V
YES
No SW_5.3VA
YES
Is there about 3V ~ 3.8V NO at the IC151 pin 1?
YES
