WM-EX610
— 13 —
— 14 —
— 15 —
6-1. BLOCK DIAGRAM
SECTION 6
DIAGRAMS
6-2. IC BLOCK DIAGRAMS
IC301 TA2123AF (EL)
IC302 NJM2185AV-TE2
IC601 MM1279XVBE
PRE A
PRE B
MIX
PW B
PW A
PW C
BST
MT TC
BASE
RF IN
PW GND
OUT B
OUT C
OUT A
VCC
RF OUT
VREF OUT
BST NF
BST OUT
PW IN C
LPF
EQ A
PW NF A
PW IN A
PW IN B
PW NF B
3
IN A-R
5
PRE NF-A
6
PRE OUT A
7
MTL DRV A
8
MTL DRV B
9
PRE OUT B
10
PRE NF-B
11
AMS IN
12
IN B-R
4
IN B-F
2
IN A-F
1
21
20
19
18
17
GND
16
AMS DET
15
AMS MIX
14
AMS SW
13
22
23
24
38
C-AMP SW 37
PW SW 42
MT SW 41
F/R SW 44
BST SW
43
M/N SW 46
PRE GND 47
VREF IN 48
PRE SW 45
AMS OUT 40
BEEP 39
26
27
28
29
30
31
32
33
34
DET
36
AGC IN
35
+
–
+
–
+
–
+
–
+
–
+
–
EQ B
25
RIPPLE
FILTER
AGC
DET
BEEP
VREF
SWITCH
COMPARATOR
MTL DRV
8
2
1
3
A-CH BLOCK
7
6
5
4
G1
V/I
+
–
GM
DET
A
GND
IREF
VREF
OUTB
DCB
DETB
INB
B-CH BLOCK: SAME AS A-CH.
V
1
PW
2
W
3
GND
4
OSC
5
DR
6
VREF
7
START
8
VSP
9
IN+ 10
PV
20
U
19
PU
18
GND
17
VCC
16
FC
15
TC1
14
TC2
13
R1
12
OUT
11
MOTIVE
CONTROL
CIRCUIT
MOTIVE/
OSC
MOTIVE
LOGIC
SOFT SWITCH
PRE DRIVER
INVERTER
BIAS
REFERENCE
VOLTAGE
SPEED
CONTROL
CURRENT
CONTROL
OUTPUT
BIAS
+
–
+
–
PREAMP
AMS
AGC
DET
BEEP
V/I
EQ
METAL
CONTROL
SPEED
CONTROL
DIRECTION CONTROL
PHOTO REFLECTOR
SWITCH & BUFFER
Q702
PLUNGER
DRIVE
Q701
AVLS CONTROL
DOLBY NR AMP
IC302
SWITCH
Q304
MEGA BASS/GROOVE
SWITCHING
Q303
RIPPLE FILTER
Q301
RESET SIGNAL
GENERATOR
IC703
REGULATOR
IC704
Q604
MOTOR
CONTROL SWITCH
ROTATION DETECT
SENSOR
PH701
CAPSTAN/REEL
MOTOR DRIVE
IC601
SYSTEM CONTROLLER
IC701
S702 – 705
M901
(CAPSTAN/REEL)
HP901
(PLAYBACK)
AUDIO MASTER AMP
IC301
•
SIGNAL PATH
: PLAYBACK
R-CH: Same as L-CH
MOTOR
DRIVE
CIRCUIT
SWITCH &
LOGIC
CIRCUIT
BIAS
REFERENCE
VOLTAGE
OSC
CIRCUIT
REVIVE/GROOVE
SWITCHING
Q302
DC/DC
CONVERTER
IC702
DRY BATTERY
SIZE “AA”
(IEC DESIGNATION R6)
1P. 1.5V
BATTERY PACK
(NI-CD)
(NC-6WM 1.2V)
VDD B+
DDC B+
BATT B+
BATT
B+
X701
32.768kHz
Q603
SPEED
CONTROL
SWITCH
THP601
TAPE SPEED
RV601
START
VREF
IN+
COMPARATOR
VSP
OUT
16
DDC B+
LED BATT
VCC
DATA
REMO
GND
BATT B+
BATT B+
BASE
PW OUT-L
PW OUT-R
PW OUT-C
POWER AMP
POWER AMP
POWER AMP
PW
NF-L
BASS BOOST
AMP
PW
IN-L
PW
IN-C
BST
OUT
VOL
RV301
HOLD
S707
2
J301
IN-L
OUT-L
S901-2
(ATS)
PRE
OUT-L
MTL
DRV-L
FWD
IN-L
REV
IN-L
L-CH
R-CH
FWD
L-CH
R-CH
REV
R-CH
R-CH
R-CH
R-CH
R-CH
R-CH
R-CH
R-CH
S701
(DIRECTION)
OSC
MOTOR REST
AR
T
MOTOR DIR
AMS OUT
F/R SW
M/N SW
35
8
7
5
DR
6
10
9
11
W
3
V
1
U
W
V
U
19
48
XT0
28
XT1
29
46
19
18
VCC
19
RF OUT
17
DDC B+
20
22
21
29
EQ-L
30
40
BST SW
43
AGC IN
35
BEEP
39
28
32
33
AMS
IN
12
4
5
7
8
46
44
CTL F/R
9
CASSETTE SW
5
REV SW
4
CENTER SW
3
FWD SW
2
CTL DOLBY
CUE-REVIEW
20
A
VLS
CTL
38
R-CH
47
MEGA BASS CTL
8
AMS IN
39
BOOST CTL
10
REVIVE
CTL
SPEED CTL
7
44
MOTOR CTL
45
VDD
23
STOP 1 SET
13
BEEP
36
MT SW
41
MUTE CTL
12
PW SW
42
AMP CTL
11
DA
TA/RMUM
6
KEY IN
16
1
5
S901-1
(TAPE DETECT)
14
VCC
+
+
+
B+ SWITCH
Q305
FWD
STOP
REV
OFF
HOLD
D703
BATT
IN PHOTO 37
PHOTO CTL 18
PM CTL
PM901
(PLUNGER)
17
DDC B+
DDC
B+
STOP 2 SET
14
BA
TT DET
15
RESET
+
IC302 THROUGH
Q307
CUE REVIEW
VOLUM SWITCH
Q306
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