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SECTION 5
DIAGRAMS
5-1.
BLOCK DIAGRAM
J102
MIC
(PLUG IN POWER)
ALC SWITCH
Q101
MIC901
S101 (2/4)
(REC/PB)
PB
HRPE901
REC
REC/
PLAYBACK
NF CONTROL
SWITCH
Q103, 105
REC/PB
SWITCH
Q102
(ERASE)
REC/PB
S602 (2/2)
SWITCH
TAPE SPEED
Q112
1.2cm
S101 (1/2)
(REC/PB)
PB
REC
• SIGNAL PATH
: PLAYBACK
: REC
PRE AMP, ALC
IC101 (1/2)
MIC
MIC IN
+
28
PRE OUT
–
EQ
EQ IN
29
+
–
PRE NF
1
ALC
ALC CONT
5
REC IN
REC OUT
4
2.4cm
VREF OUT
–
27
+
MIC
VCC
MIC VCC
MUTING
26
R.F
Q110, 111
21
MUTE
VOX DELAY
VOX
S101 (3/4)
RV101
(REC/PB)
VOL
PB
2
REC
S103
VOR
OFF
L
H
S603
3
FAST PB
OFF
THP602
ON
FAST PB
SWITCH
Q601
RV601
RV602
TAPE
TAPE
SPEED
SPEED
2.4cm
1.2cm
VCC
3V
15
B+
S602 (1/2)
TAPE SPEED
1.2cm
VOR
7
SWITCH
Q104
REC LED
REC LED
CONTROL
DRIVE
SWITCH
Q107
Q106, 108
D102
REC
11
11
POWER AMP,
CAPSTAN/REEL MOTOR DRIVE
IC101 (2/2)
PWR IN
PWR OUT2
11
14
S101 (4/4)
(REC/PB)
PB
REC
PWR OUT1
12
3V
B+
THP601
VS
18
M M
GVM VREF
19
GVM OUT
16
GVM CONT
20
M901
CAPSTAN
/REEL
P/R
24
23
22
2.4cm
BATT LED
3V
SWITCH
B+
Q501
D504
PAUSE
SWITCH
Q113
M-640V/645V/647V
J101
EAR
SP901
S102
(POWER)
CN101
DC IN 3V
–
+
DRY BATTERY
SIZE "AA"
(IED DESIGNATION R6)
2PCS. 3V
L501
BATTERY VOLTAGE
DETECT
IC501
7 VCC
6 VS
OUT
4
5
HYS
GND
3
BATT LED
SWITCH
Q502
D501
D502
D503
BATT
LED UNIT
S601
PAUSE
OFF
ON
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