Circuit Board Layout & Wiring - Yamaha PSR-S550 Service Manual

Digital workstation
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PSR-S550/PSR-S550B
■ CIRCUIT BOARD LAYOUT & WIRING
• Upper Case Assembly
Ass'y
TW
TW
JACK
550
540
560
520
W401
AM
PNR
PNL
ENC
DM
PNC
530
510
500
PSW
MVR
PB
30
• Lower Key Bed Assembly
Ass'y
L50
L30
L40
61L
61H
6

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