Yamaha NS-BP300, Service Manual

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R-840/NS-BP300
R-840/NS-BP30
0
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SYSTEM CONNECTOR
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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.
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Specifications
SYSTEM CONNECTOR
RECEIVER PLAYER
R-840 BD-940 / DVD-840 / CD-640
Microprocessor: IC101 Microprocessor: IC204 / IC113 / IC501
Pin no. Function Port type Terminal name Pin no. Port type Terminal name
Pin no.
940 840 640
1 Message R-840 to player SO SYS_MOSI 77 SI SYS_MOSI 33 32
2 Message player to R-840 IRQ SYS_PL_EN 75 SO SYS_PL_EN 35 –
SYS_POW_DET – 24
3 Message R-840 to player O SYS_RE_EN 76 SI SYS_RE_EN 2 20
4 Message player to R-840 SI SYS_MISO 78 O SYS_MISO 34 31
5 Message R-840 to CD-640 – PLAYER_S10 – +10EX
6 No connected
7 No connected
8 No connected
9 GND Chassis AGND Chassis AGND
SYSTEM CONNECTOR
1
3 4
6 7
2
5
8
9
Receiver (R-840) Player (Example: BD-940)
System control cable