17
WM-EX621
6-6. IC PIN FUNCTION
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
I/O
–
I
I
I
I
I/O
O
O
O
O
O
O
I
I
I
I
O
O
O
O
–
–
–
–
–
–
–
–
–
I
I
–
I
O
I
O
I
O
Pin Name
N.C.
FWD SW
CENTER SW
REV SW
CASSETTE SW
DATA/RMUM
REVIVE CTL
MEGA BASS
CTL
F/R CTL
BOOST CTL
AMP CTL
MUTE CTL
SET STOP1
SET STOP2
BATT DET
KEY IN
PM CTL
PHOTO CTL
LED BATT
DOLBY CTL
VDD1
VSS
VDD
VDDH
CB1
CB2
VDDL
XT0
XT1
TAT1B
TAT2B
OSCM
OSC0
OSC1
RESET
BEEP
IN PHOTO
AVLS CTL
Description
Not used
Detection switch (S701) input terminal “L”: FWD
Detection switch (S701) input terminal “L”: CENTER
Detection switch (S701) input terminal “L”: REV
Cassette detection switch (S901-1) input terminal
“L”: with cassette “H”: without cassette
Serial data output of communication with the remote commander having phone, and the remote control sensing
signal input from remote commander having phone
Tone selection signal output to TA2123AF (IC301)
“L”: REVIVE “H”: OFF/MEGA BASS/GROOVE
Tone selection signal output to TA2123AF (IC301)
“L”: MEGA BASS “H”: OFF/REVIVE/GROOVE
FWD/REV selection signal output to TA2123AF (IC301) “L”: FWD “H”: REV (empty terminal)
Bass boost control signal output to TA2123AF (IC301) “L”: OFF “H”: ON
Power supply ON/OFF control signal output to TA2123AF (IC301)
“L”: power supply OFF “H”: power supply ON
Power mute control signal output to TA2123AF (IC301)
“L”: mute ON “H”: mute OFF
Battery voltage detection input terminal when the machine is stopped. (A/D input)
Reference voltage input terminal when the machine is stopped. (A/D input)
Battery voltage detection input terminal (A/D input)
Key input terminal (A/D input)
Plunger drive signal output “L”: plunger ON
Control signal output to the rotation detection circuit of the capstan/reel motor
“L”: rotation detection circuit ON
LED drive signal output to BATT display “L”: LED ON (empty terminal)
Dolby ON/OFF control signal output to Dolby NR amplifier
“L”: Dolby NR, ON, H: Dolby NR OFF (empty terminal)
Power supply terminal for external interface (+2.5 V)
Ground terminal
Power supply terminal (+1.5 V)
Step-up power supply terminal for back-up
Terminal to which condenser for step-up power supply is connected
Terminal to which condenser for step-up power supply is connected
Power supply terminal for internal logic
Terminal to which main system clock is connected (32.768 kHz)
Terminal to which main system clock is connected (32.768 kHz)
Test input terminal Normally, fixed to “H”.
Test input terminal Normally, fixed to “H”.
Terminal to which external capacitor for oscillation is connected Not used in this machine (empty terminal)
Terminal to which resistance for high-speed CR oscillation (800 kHz) is connected Not used in this machine
(empty terminal)
Terminal to which resistance for high-speed CR oscillation (800 kHz) is connected Not used in this machine
(empty terminal)
System reset signal input from the reset signal generator (IC703) “L”: reset
“L” is input for several hundreds msec after power supply starts up, then “H” is input.
Beep sound output to TA2123AF (IC301)
Rotation detection input of capstan/reel motor (M901)
AVLS ON/OFF control signal output “L”: AVLS OFF, “H”: AVLS ON
• MAIN BOARD IC701 ML63512-129TBZ060 (SYSTEM CONTROL)
