– 9 –
– 10 –
WM-GX100
4-1. BLOCK DIAGRAM (1/2)
SECTION 4
DIAGRAMS
MIC AMP, ALC
IC341 (1/2)
REC/PB AMP
IC341 (2/2)
TAPE EQ AMP,
MEGA BASS/AVLS CONTROL, HEADPHONE AMP
IC301
02
ANT
A
TUNER MUTE
C
TUNER L/R
TUNER L
TUNER R
B
VCC B+
REC B+
D309
TAPE B+
REC B+
TAPE B+
BATT B+
SWITCHING
Q608
D301
D302
D101
D102
HP MUTE
VCC B+
VCC B+
REC B+
POWER MUTE
SWITCH
Q305
VCC B+
–2
–1
MIX
OUT (L)
MIX
OUT (R)
POWER
IN (L)
POWER
IN (R)
POWER
OUT (L)
POWER
OUT (R)
COM
VREF
L
R
LOW
BOOST
IN (L)
LOW
BOOST
IN (R)
MUTE
PRE
OUT L
L-CH
HE901
(ERASE)
FWD L
REV L
HRP901
(REC/PB)
D305
D306
TUNER B+
REC B+
TUNER VCC
REC B+
BUF
IN B
PB
OUT B
REC
OUT B
BUF
IN A
MIC
IN B
MIC
OUT B
MIC
IN A
DET 2 OUT
PRE NF 2
PRE OUT 2
PRE NF 1
PRE OUT 1
2
PWR
MUTE
9
TUNER B+
PRE
MUTE
10
26
25 21
22
6
AVLS
3
8
4
35
34
36
1
20
18
24
31
28
15
8
2
14
13
16
21
19
+
+
+
+
ALC
MIC
AMP
PB AMP
REC AMP
MIC
OUT A
17
ALC
MIC
AMP
REC MUTE
SWITCH
Q359
PB MUTE
SWITCH
Q360
B+ SWITCH
Q609
START/STOP
CONTROL SWITCH
Q610
START MUTE
SWITCH
Q606
REC
Q351
PRE MUTE
SWITCH
Q310
MUTING
CONTROL SWITCH
Q311
HEADPHONE
SWITCHING
Q356
TAPE EQ SWITCH
Q101, 201
NF
DET
DET
CONTROL
M.B.
ON/OFF
14
LOW
BOOST
J303
MIC
RV301
VOLUME
MUTING
Q141
MUTING
Q241
PB
OUT A
REC
OUT A
9
3
EQ
AMP
POWER
AMP
POWER
AMP
POWER
AMP
MODE
CONTROL
CIRCUIT
PB AMP
REC AMP
RADIO/TAPE
11
12
PWSW
REC/PB
R-CH
S303 (1/4)
S303 (2/4)
REC
PB
S303
(REC/PB)
REC
PB
S303 (4/4)
(REC/PB)
S303 (4/4)
(REC/PB)
NORM
LIMIT
CrO
2
/METAL
NORM
PB EQ
S310
VREF
OFF
ON
MEGA BASS
S306
AVLS
S305
OFF
ON
PAUSE
ç
S308
MUTE
PRE
OUT R
FWD R
REV R
VREF
VREF
23
30
29
32
EQ
AMP
+
–
+
–
+
–
VREF
VREF
MIX 2
MIX 1
+
J301
(HEADPHONE)
2
+
STOP MUTE
SWITCH
Q607
+
–
SPEED
CONTROL
CAPSTAN/REEL
MOTOR DRIVE
IC601
M901
(CAPSTAN/REEL)
MOTOR
DRIVE
CIRCUIT
SWITCH &
LOGIC
CIRCUIT
BIAS
REFERENCE
VOLTAGE
OSC
CIRCUIT
TH601
TAPE SPEED
RV601
S/S
VREF
IN+
COMPARATOR
VSP
OUT
OSC
13
14
11
15
16
17
WOUT
6
VOUT
5
UOUT
W
V
U
4
S301
(TAPE POWER)
(ON at FF/REW/PLAY modes.)
BATT B+
REC B+
VCC B+
TUNER VCC
MIC B+
S1 (1/2)
(FUNCTION)
FM B+
TUNER B+
D503
D502
AM B+
TAPE B+
RIPPLE
FILTER
Q301, 302
B+ SWITCH
Q341, 343
TUNER ON
SWITCH
Q303
TAPE ON
SWITCH
Q304
DRY BATTERY
SIZE ‘‘AA’’
(IEC DESIGNATION R6)
2PCS. 3V
FM
AM
TAPE
(RADIO OFF)
S1 (2/2)
(FUNCTION)
FM
AM
TAPE
(RADIO OFF)
D308
BATT
J302
DC IN 3V
–
+
• SIGNAL PATH
: TUNER (FM/AM)
: TAPE PLAY
: TAPE REC
: MIC INPUT
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
