Sony STR-DA9000ES Service Manual page 137

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• DIGITAL BOARD IC2701 TMP87C447U-1F23 (SUB SYSTEM CONTROLLER)
Pin No. Pin Name
1 STAT0
2 CARRIER-OUT
3 FLASH
4 MBUS
5 CTRL-LATCH
6, 7 —
8 SIRSTS
9 —
10 SIRCS-INPUT
11 A1-OUT
12 A1-IN
13 GND
14 RESET
15 XIN
16 XOUT
17 GND
18 VDD
19 RESETC
20 RESETN
21 OUTHI1
TE
L 13942296513
22 OUTLO1
23 OUTHI2
24 OUTLO2
25 ENDFLG
26 UARTIN
27 to 32 —
33 SIRCS-OUT
34 to 36 —
37 MBUS_TV
38 MBUS_V2
39 MBUS_V1
40 VDD
41 to 44 STAT4 to STAT1
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I/O
O M-BUS status output to the main system controller
O SIRCS signal on/off control signal output terminal
I Not used
I Not used
I Serial data latch pulse signal input from the main system controller
— Not used
O Not used
— Not used
I SIRCS signal input terminal
O SIRCS signal output for CONTROL A1II
I SIRCS signal input for CONTROL A1II
— Ground terminal
System reset signal input from the reset signal generator "L": reset
I
For several hundreds msec. after the power supply rises, "L" is input, then it changes to "H"
I System clock input terminal (7.28 MHz)
O System clock output terminal (7.28 MHz)
— Ground terminal
— Power supply terminal (+5V)
O Reset signal output to the main system controller
O Not used
O Not used
O Not used
O Model distination signal output to the main system controller
O Model distination signal output to the main system controller
I End flag input from the main system controller
I Serial data input from the RS-232C
— Not used
O SIRCS signal output terminal
— Not used
I Not used
I Not used
I Not used
— Power supply terminal (+5V)
O M-BUS status output to the main system controller
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Description
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