Carefully removed from a vintage Yamaha YP40 Electric Piano/Clavinova - this assembly is now offered to restore other Yamaha YP40's or other suitable electronic equipment.
Yamaha Electric Piano/Clavinova SPARE PART
DC Power Supply & Main Audio Amplifier
Part # LC90290 (THK-S7V-1)
Made in Japan
3x AC low voltage inputs (molex sockets)
1x AC Main supply input (solder tags)
DC regulators on the heatsink are: NEC 14305, NEC7815, NEC7915
Audio power amplifier on the heatsink is a LA4440 block amplifier
COSMETIC CONDITION:
Very good condition, no damage to the PCB at all
No damage to the original connecting connectors.
The only de-soldering/soldering required is the phase/neutral of the main AC input supply - I have left short tails to help identify these points of connection.
TESTING:
This PCB is fully functional and without any issues at all.
It was removed from the vintage YP40 because the "E" finger on the keyboard was mechanically damaged. This was the only thing wrong with the YP40 but there was no interest in the complete instrument with one key not functioning!
Since removal from the instrument, this PCB assembly is now stored within sealed plastic to protect the components and connector contacts from dust and contamination.
