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KDC-MP925/W8027
6
Pin No.
Pin Name
I/O
Description / Processing Operation
Fig
18
TEST
-
NC (GND)
19
DIAG
I
Over voltage/Over current detection terminal (Normal : H, Bad condition : L)
20
MUTE
O
MUTE output terminal (ON : OPEN, OFF : L)
21
PRE MUTER
O
PREOUT (Rch) muting control terminal
22
PRE MUTEL
O
PREOUT (Lch) muting control terminal
23
BU DET
I
Momentary power dropped detection terminal (No Backup, Momentary power dropped : H, Backup : L)
24
ACC DET
I
ACC detection terminal (With ACC : L, Without ACC : H)
25
FOCUS
I/O
WOW/FOCUS control terminal (FOCUS HI : H, FOCUS LOW : L)
26
EXT AMP CONT
O
External amplifier control terminal
27
DIMMER
I
Small lamp detection terminal (ON : L, OFF : H)
28
ANT CONT(TYPE2) I/O
Antenna control/Destination select terminal (TUNER ON : H)
29
P ON
I/O
SW14V, SW5V control terminal (POWER ON : H, POWER OFF : Hi-Z)
30
ILL ON
I/O
FL, illumination control terminal (ON : H, OFF : Hi-Z)
31
RESET
I
Reset input terminal
32,33
XT1/XT2
-
Sub clock (32.768KHz)
34
REGC
-
Connect to 1
µ
F capacitor
35,36
X2/X1
-
Main clock (20MHz)
37
VSS
-
GND
38
VDD
-
AVR 5V
39
CLKOUT
-
NC
40
LX REQ M
O
Communication request to external slave unit (Request : L)
41
LX MUTE
I
Mute request from external slave unit (MUTE : H).
42
LX CON
O
External slave unit (ON : H, OFF : L)
43
LX RST
O
Reset output to external slave unit (Normal : L, After system reset : H 400ms or more and then L)
44
CD MECHA+B
O
CD4.7V output terminal (CD : H, Except CD source : L)
45,46
TYPE0/TYPE1
I
Destination select terminal
47,48
IC2 TYPE0/TYPE1
I
IC2 destination select terminal
49
PAN5V
O
Panel 5V control terminal (ON : H, Momentary power dropped : Hi-Z)
50
E2P5V
I/O
E2PROM, D/A converter power supply control terminal (ON : L, OFF : Hi-Z)
51
DSI
I/O
DSI control (ON : L, OFF : Hi-Z)
52
MC REQ
O
Communication request to panel microprocessor
53
PAN RST
O
Reset output to panel microprocessor (Normal : H, Reset, Momentary power dropped : L)
54
WOW MODE3
O
WOW control terminal
1
55
DVDD
-
AVR 5V
56
DVSS
-
GND
57
SC CON
O
Panel microprocessor control terminal (POWER OFF, ACC OFF : L)
58
M RST
O
Reset output to CD mechanism (Normal : H, Reset : L)
59
M STOP
O
Stop request to CD mechanism (STOP : L, CD : H)
60
CD SW3
I
CD DOWN SW detection terminal (CD disc chucking : H)
61
LO/EJ
I/O
CD mechanism loading/ eject selector (STOP, Brake : Hi-Z, LOADING : L, EJECT : H)
MICROCOMPUTER’S TERMINAL DESCRIPTION