Kenwood X-45 Service Manual page 19

X-45/85
CIRCUIT DESCRIPTION
[M50945-103SP]
Pin name
Veer
Spekce
Standard Voltage for A/D Converter (5.0 V)
Function
N7
| Back up detection input
0: BACKUP
1: NORMALLY
N6
N5
Key return input
Active: High
N4
N3
PHIN B
Key return input
Active: High
| B mechanism rotation detection sensor input
N2
| PHIN A
A mechanism rotation detection sensor input
N1
j) LEVEL L
Music signa! input L ch
NO
P47
Music signal input R ch
Line mute contro! output
P46
| B mechanism record mute
B mechanism REC/PLAY selection
» ON
ON
OFF
» PLAY
PREC
| PLAY EQ selection
STB
: DOL C/B
STBP Output (System IC control)
120 u
:70p
DOLBY B/C selection 0:B
1:¢
DOL ON/OFF
DOLBY ON/OFF selection
0: OFF
1: ON
RESP
STBP
Reset terminal for P.EXP
0: reset
1: Xxx
STBP output for output port extension IC Connected to STBP of P.EXP
Clock pulse output for output port extension IC Connected to CLK of P.EXP
Data output for output port extension IC Connected to DATA of P.EXP
System IC clock
System IC data
OSC OUT
| AUTO BIAS square wave output
S. DATA
System contro! serial data I/O
|S. BUSY
System control serial busy !/O
NC
RESET
' Reset signal input
Xin
| System clock input
' System clock output
NC
NC
GND pin
NC
OPEN
| Key return input
Active
Key return input
Active
Key return input Active
| Key return input
Active
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