Wiring Diagram; Idling Current Adjustment - Marantz PM4200 Service Manual

3. WIRING DIAGRAM

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IC61 : M37531E4FP
PIN NO. SYMBOL IN/OUT
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
P.ON O POWER ON/OFF
27
PRO IN I PROTECTOR INPUT
28
CD-R O CD-R FUNCTIONLED OUTPUT
29
MD/TAPE O MD/TAPE FUNCTION LED OUTPUT
30
AUX/DVD O AUX/DVD FUNCTION LED OUTPUT
31
TUNER O TUNER FUNCTION LED OUTPUT
32
CD O CD FUNCTION LED OUTPUT
33
PHONO O PHONO FUNCTION LED OUTPUT
34
MUTE O MUTE LED OUTPUT
35
GND I GROUND
36

4. IDLING CURRENT ADJUSTMENT

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
DESCRIPTION
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