WM-EX678
— 22 —
— 23 —
— 24 —
6-5. IC PIN FUNCTION
NOTE:
•
-XX, -X mean standardized parts, so they may
have some differences from the original one.
•
Items marked “*” are not stocked since they
are seldom required for routine service. Some
delay should be anticipated when ordering these
items.
•
The mechanical parts with no reference number
in the exploded views are not supplied.
•
Abbreviation
FR
: French
EE
: East European
SECTION 7
EXPLODED VIEWS
When indicating parts by reference number,
please include the board name.
•
Color Indication of Appearance Parts Example:
KNOB, BALANCE (WHITE) . . . (RED)
↑
↑
Parts of Color Cabinet’s Color
Ref. No.
Part No.
Description
Remarks
Ref. No.
Part No.
Description
Remarks
13
12
11
10
7
6
4
5
1
2
3
7
8
9
14
15
14
17
18
19
16
S901
MT-WMEX672-162
not supplied
not supplied
not supplied
1
1
23
23
24
25
25
27
29
28
30
1
3-704-197-21 SCREW (M1.4
×
2.5), LOCKING (SILVER)
1
3-704-197-23 SCREW (M1.4
×
2.5), LOCKING (BLACK)
(AEP,FR,EE)
2
3-029-230-01 KNOB (HOLD)
3
3-029-227-01 PLATE (TERMINAL), ORNAMENTAL
4
3-029-233-51 LID, BATTERY CASE (SILVER)
4
3-029-233-61 LID, BATTERY CASE (BLACK)(AEP,FR,EE)
5
3-345-648-71 SCREW (M1.4), TOOTHED LOCK
6
3-029-213-01 TERMINAL BOARD
7
3-375-114-41 SCREW
8
A-3021-172-A MAIN BOARD, COMPLETE (AEP,UK,EE)
8
A-3021-173-A MAIN BOARD, COMPLETE (FR)
9
3-029-210-01 TERMINAL BOARD (MINUS)
10
X-3376-278-1 TERMINAL BOARD ASSY, BATTERY
11
3-366-892-11 SCREW (M1.4
×
1.4)
12
3-029-217-01 LEVER (B), LOCK
13
3-029-205-31 MD COVER
14
3-366-892-01 SCREW (M1.4)
15
X-3376-277-1 BRACKET ASSY
16
X-3376-279-1 BRACKET (CASSETTE) ASSY
17
3-365-630-41 SCREW (M1.4)
18
3-029-219-01 KNOB (OPEN)
19
3-029-220-01 SPRING, TENSION
23
3-704-197-11 SCREW (M1.4
×
2.0), LOCKING (SILVER)
23
3-704-197-13 SCREW (M1.4
×
2.0), LOCKING (BLACK)
(AEP,FR,EE)
24
3-032-323-01 PAPER (A), SHIELD
25
3-032-805-01 SHEET (T1.6)
27
3-309-595-11 SHEET, INSULATING, PACK
28
3-031-460-01 SHEET (BT)
29
3-032-905-01 CUSHION (TO.4)
30
3-328-483-11 SHEET
S901
1-762-553-11 SWITCH, LEAF
7-1. CABINET BLOCK, MAIN BOARD
Pin No.
39
40
41
42
43
44
45
46
47
48
I/O
I
O
O
O
O
O
O
O
O
O
Description
AMS detection signal input from TA2123F (IC301) “H”: No music
Drive signal output for AVLS display Not used in this machine (empty terminal)
Drive signal output for BL SKIP display Not used in this machine (empty terminal)
Drive signal output for MG GRV display Not used in this machine (empty terminal)
Drive signal output for RV GRV display Not used in this machine (empty terminal)
Motor speed control signal output to capstan/reel motor drive IC (IC601)
“L”: normal “H”: half speed
Motor start control signal output to capstan/reel motor drive IC (IC601)
“H”: motor ON
Motor direction control signal output to capstan/reel motor drive IC (IC601)
“L”: clockwise “H”: counter-clockwise
Motor brake ON/OFF control signal output to capstan/reel motor drive IC (IC601)
“H”: brake ON (Normally “L” is input.)
Signal output for motor start-up status control to capstan/reel motor drive IC (IC601)
“H”: during FF/REW motor rotating
Pin Name
AMS IN
LED AVLS
LED BLSKIP
LED MB
LED REVIVE
SPEED CTL
MOTOR CTL
MOTOR DIR
MOTOR BRK
MOTOR
RESTART
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
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
CTL DOLBY
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
LED DOLBY
VDD1
VSS
VDD
VDDH
CB1
CB2
VDDL
XT0
XT1
TAT1B
TAT2B
OSCM
OSC0
OSC1
RESET
BEEP
IN PHOTO
AVLS CTL
Description
Dolby ON/OFF control signal output to Dolby NR amplifier (IC302)
“L”: Dolby NR, ON, H: Dolby NR OFF
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 TA2123F (IC301)
“L”: REVIVE “H”: OFF/MEGA BASS/GROOVE
Tone selection signal output to TA2123F (IC301)
“L”: MEGA BASS “H”: OFF/REVIVE/GROOVE
FWD/REV selection signal output to TA2123F (IC301) “L”: FWD “H”: REV
Bass boost control signal output to TA2123F (IC301) “L”: OFF “H”: ON
Power supply ON/OFF control signal output to TA2123F (IC301)
“L”: power supply OFF “H”: power supply ON
(The power supply ON/OFF control of Dolby NR amplifier (IC302) is performed.)
Power mute control signal output to TA2123F (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 (D703) drive signal output to BATT display “L”: LED ON
Drive signal output to
a
NR display Not used in this machine (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 TA2123F (IC301)
Rotation detection input of capstan/reel motor (M901)
AVLD ON/OFF control signal output “L”: AVLS OFF, “H”: AVLS ON
• MAIN BOARD IC701 ML63512-119TBZ060 (SYSTEM CONTROL)
