Marantz PM4400 - Wiring Diagram; Idling Current Adjustment

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