System Connector - Yamaha NS-BP300 Service Manual

■ SYSTEM CONNECTOR

● Connections
Connect the SYSTEM CONNECTOR (TO: PLAYER) of the R-840 to the SYSTEM CONNECTOR (TO: RECEIVER) of the
player with the system control cable.
Receiver (R-840)
● Specifications
SYSTEM CONNECTOR
Pin no. Function
1 Message R-840 to player
2 Message player to R-840
3 Message R-840 to player
4 Message player to R-840
5 Message R-840 to CD-640
6 No connected
7 No connected
8 No connected
9 GND
System control cable
SYSTEM CONNECTOR
8 7 6
5 4 3
2 1
9
RECEIVER
R-840
Microprocessor: IC101
Port type Terminal name Pin no.
SO SYS_MOSI
IRQ SYS_PL_EN
O SYS_RE_EN
SI SYS_MISO
– PLAYER_S10
Chassis AGND
Player (Example: BD-940)
PLAYER
BD-940 / DVD-840 / CD-640
Microprocessor: IC204 / IC113 / IC501
Port type Terminal name
77 SI SYS_MOSI
75 SO SYS_PL_EN
SYS_POW_DET
76 SI SYS_RE_EN
78 O SYS_MISO
– +10EX
Chassis AGND
R-840/NS-BP300
Pin no.
940 840 640
33 32
35 –
– 24
2 20
34 31
81