Kenwood KDC-M7024 Service Manual page 9

MICROCOMPUTER'S TERMINAL DESCRIPTION
MECHANISM MICROCOMPUTER : 703033BYGC-J02 (X32-541 : IC7)
Pin No. Pin Name I/O
1 NC O Not used.
2 E2P_SCL O ROM correction E2P IC2 clock.
3~5 NC O Not used.
6 VDD - 5V
7 GND - GND
8, 9 NC O Not used.
10 PON O Power ON/OFF control.
11 /PON O Power ON/OFF control.
12 LOE/LIM_SW I Down limit switch detection.
13 8EjE_SW I Not used.
14 LOS_SW I Not used.
15 12EjE_SW I Not used.
16, 17 NC O Not used.
18 IC/Vpp - Write voltage (Flash).
19 MUTE_L O L ch audio mute control.
20 MUTE_R O R ch audio mute conrol.
21~25 NC O Not used.
26 EFLG I WMA error detection.
27 WAIT I Wait control signal detection.
28 FOK I Focus condition detection.
29, 30 NC O Not used.
31 RESET I Reset detection.
32 XT1 I Not used.
33 XT2 - Not used.
34 REGC -
35 X2 -
36 X1 I
37 Vss - GND
38 VDD - 5V
39 NC O NC
40 WRL O Multiplex WRITE signal.
41 NC O Not used.
42 R/W O Multiplex _R/W signal
43 DSTB,RD O Multiplex DSTB or RD signal
44 ASTB O Multiplex ASTB signal
45, 46 NC O Not used.
47~54 AD0~AD7 I/O Multiplex address/data
55 BVdd - Bus interface power supply.
Use
Fixed Low
Fixed Low
Fixed Low
H : ON, L : OFF
H : OFF, L : ON
L : Most Inner position detection
Fixed Low
Fixed Low
Fixed Low
Fixed Low
L : Mute ON, H : Mute OFF
L : Mute ON, H : Mute OFF
Fixed Low
H : Error, L : No error
H : Focus OK, L : Focus NG
Fixed Low
H : Normal, L : Reset
Output stop.
_LBEN : 61002 (Not used), _WRL : 63760
Fixed Low
_R/W : 61002, _WRH : 63760 (Not used)
_DSTB : 61002, _RD : 63760
Fixed Low
KDC-M7024/MP822
Processing Operation
STBY
Processing
Low
Hi-Z
Low
Low
Low
High
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Low
-
Low
Low
Low
Hi-Z
Hi-Z
Hi-Z
Low
Hi-Z
Hi-Z
-
Hi-Z
Low
Out-Low
Low
Out-Low
Out-Low
Out-Low
Low
Out-Low
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