Microprocessor; Power Sw A Pwb; Headphone & Tone Defeat A Pwb - Marantz PM4001 Service Manual

CONNECT 2 A PWB

POWER SW A PWB

MASTER VOLUME A PWB
SPEAKER SW & LOUDNESS A PWB
HEADPHONE & TONE DEFEAT A PWB
CONNECT 1 A PWB
Sn-Ag-Cu
Lead-free Solder
When soldering, use the Lead-free Solder (Sn-Ag-Cu).
15

8. MICROPROCESSOR

IC61 : M37531E4FP
PIN NO. SYMBOL IN/OUT DESCRIPTION
CLK O CLOCK OUTPUT
1
DATA O DATA OUTPUT
2
CE O MICOM CHIP ENABLE
3
R.SEL. I REC SELECTOR INPUT
4
GND I GROUND
5
GND I GROUND
6
GND I GROUND
7
8 GND I GROUND
9 ST-BY O STANDBY LED OUTPUT
VR UP O MOTOR VR UP OUTPUT
10
VR DN O MOTOR VR DOWN OUTPUT
11
VCC I VDD CONNECTION
12
RESET I MICOM RESET
13
I
14
VCC I VDD CONNECTION
15
XIN I 8.0MHz CRYSTAL MICOM OPERATOR
16
XOUT I 8.0MHz CRYSTAL MICOM OPERATOR
17
GND I GROUND
18
EN.1 I FUNCTION SELECTOR ENCODER INPUT
19
EN.2 I FUNCTION SELECTOR ENCODER INPUT
20
AMUTE O AMP MUTE OUTPUT
21
FMUTE O FUNCTION MUTE OUTPUT
22
GND I GROUND
23
GND I GROUND
24
BACKUP I BACK UP INPUT
25
RE-IN I REMOCON DATA INPUT
26
P.ON O POWER ON/OFF
27
PRO IN I PROTECTOR INPUT
28
CD-R O CD-R FUNCTIONLED OUTPUT
29
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
16