Ic Block Diagram; Circuit Boards - Yamaha Disklavier Silent Series Service Manual

IC BLOCK DIAGRAM

• SN74HC138NSR (XD835A00) • SN74HC132NSR (XL112A00)
3 to 8 Demultiplexer Quad 2 Input NAND
• TC4053BF (XB738B00) • HLND12R35M (XM838A00)
Triple 2-Ch. DC-DC Converter
Multiplexer/Demultiplexer
• MB3763 (XQ061A00)
Bi-directional Motor Driver
MPX100II
• SN74HC00N (iR000050)
Qnad 2 Input NAND
• NJM2403D (XG061A00)
• µPC4570G2 (XF291A00)
Dual Operational Amplifier
10

CIRCUIT BOARDS

• HP Circuit Board
HP1/2
Notes)
Circuit board HP (VT123600) XP822B0
1 Carbon Resistor
R 2-5 68 0 1/2 J (VH696500)
2 Semiconductive Cera Cap
C 2-5 0 1000 25V Z (VC694800)
3 Ceramic Capacitor
C 6 100P 50V J (FG652100)
4 Coil
L 7-11 FL5R200QNT 20uH (VB835000)
L 13-16 SBT-0260TF 60uH (VF968800)
5 Rotary Variable Resistor
VR1 A100KX2 RK0971210(VQ862900) Volume
6 DIN Connector
MIDI IN OUT YKF51-5057 3P (VQ098700) MIDI IN, MIDI OUT
7 Phone Connetor
HP1 2 HLJ0521 STEREO (VQ866600) Headphone
AUX IN,OUT HSJ0857 ST-MINI (LB301870) AUX IN, AUX OUT
8 Base Post Connector
CN 4 PH-8P TE (VB390400)
CN 5 XH-4P TE(LB918040)
CN 6 PH-5P TE(VB390100)
CN 7 PH-9P TE (VB390500)
MPX100II
11