3
4
3. WIRING DIAGRAM
4. IDLING CURRENT ADJUSTMENT
PIN NO.
SYMBOL
IN/OUT
DESCRIPTION
1
CLK
O
CLOCK OUTPUT
2
DATA
O
DATA OUTPUT
3
CE
O
MICOM CHIP ENABLE
4
R.SEL.
I
REC SELECTOR INPUT
5
GND
I
GROUND
6
GND
I
GROUND
7
GND
I
GROUND
8
GND
I
GROUND
9
ST-BY
O
STANDBY LED OUTPUT
10
VR UP
O
MOTOR VR UP OUTPUT
11
VR DN
O
MOTOR VR DOWN OUTPUT
12
VCC
I
VDD CONNECTION
13
RESET
I
MICOM RESET
14
I
15
VCC
I
VDD CONNECTION
16
XIN
I
8.0MHz CRYSTAL MICOM OPERATOR
17
XOUT
I
8.0MHz CRYSTAL MICOM OPERATOR
18
GND
I
GROUND
19
EN.1
I
FUNCTION SELECTOR ENCODER INPUT
20
EN.2
I
FUNCTION SELECTOR ENCODER INPUT
21
AMUTE
O
AMP MUTE OUTPUT
22
FMUTE
O
FUNCTION MUTE OUTPUT
23
GND
I
GROUND
24
GND
I
GROUND
25
BACKUP
I
BACK UP INPUT
26
RE-IN
I
REMOCON DATA INPUT
27
P.ON
O
POWER ON/OFF
28
PRO IN
I
PROTECTOR INPUT
29
CD-R
O
CD-R FUNCTIONLED OUTPUT
30
MD/TAPE
O
MD/TAPE FUNCTION LED OUTPUT
31
AUX/DVD
O
AUX/DVD FUNCTION LED OUTPUT
32
TUNER
O
TUNER FUNCTION LED OUTPUT
33
CD
O
CD FUNCTION LED OUTPUT
34
PHONO
O
PHONO FUNCTION LED OUTPUT
35
MUTE
O
MUTE LED OUTPUT
36
GND
I
GROUND
IC61 : M37531E4FP
CONTROLS SETTING :
TONE(BASS & TREBLE), BALANCE - MID POSITION
VOLUME - MINIMUM POSITION
LOUDNESS - OFF POSITION
TONE DEFEAT - OFF POSITION
ADJUST MESURED ACROSS
VOLTMETER READING
VR31
CN37
5 mV
VR32
CN38
5 mV
MAINS CORD
