Diagrams; Block Diagram - Sony TCS-30D Service Manual

6-1.

BLOCK DIAGRAM

HRP901
(REC/PB) PB IN
3
L-CH
MIC
2
R-CH
R-CH
REF
1
S301-4
HE901
(REC/PB)
REC DRV
(ERASE)
REC
10
PB
ATT
MIC901 REC BIAS
SWITCH
MIC
Q102
R-CH
J302
R-CH
MIC
PULG IN POWER
S301-2
(REC/PB)
REC
PB
SECTION 6

DIAGRAMS

PB PREAMP, MIC AMP, REC AMP HEADPHONES AMP
IC301
RV301
VOL
LINE
A
PB PREAMP OUT A IN A
LINE
8 16
AMP
A MIC
GCA
AMP
AGC
REF
AGC
DET
REC DRV
OUT A IN A
REC
9
AMP
REC/PB
SWITCH
B+
13
DISCHARGE
SWITCH
Q301
+
M901
(CAPSTAN/REEL)
TAPE SPEED
– 11 –
R-CH
IC302 (1/2)
J301
OUT
i
A
HEADPHONES
10
AMP
SPEAKER AMP,
+
RIPPLE FILTER
MUTING IC303
IN A
+
13
5
INV
OUT
INVERTER
AMP
STANDBY
1
PULG IN/OUT SPEAKER AMP
MUTE SWITCH SWITCHING
Q307-1 Q306
Q307-2
STANDBY
SWITCH
Q304
MUTING SWITCH
Q302, 303
CAPSTAN/REEL
MOTOR DRIVE
IC601 MOTOR B+
VOUT V+
MOTOR
M M
4 3
DRIVER
TH602
RV601
8 6
(NORMAL)
RV602
TAPE SPEED
RV603
(DOUBLE)
SPEED
THP601
CONTROL
S301-1
(REC/PB)
S601
REC
REC TIME
PB
NORMAL
DOUBLE
• SIGNAL PATH
R-CH: Same as L-CH.
OUT
POWER A
11
SP901
AMP
(SPEAKER)
OUT
IN B POWER B
3 6 8
AMP
RIPPLE FILTER
Q308
17 15
REF IN REF CNTL
RIPPLE
FILTER
MIC B+
RIPPLE FILTER
Q305
S301-3
(REC/PB)
12
B+
REC
BASE
PB
VR PW
RIPPLE POWER
11 13
FILTER ON/OFF
D301
RIPPLE FILTER
IC302 (2/2)
MUTE PULSE
GENERATOR
+
(PAUSE OFF)
Q310
MUTE PULSE
GENERATOR
+
(PAUSE ON)
Q309
S302
BATT B+
PAUSE
ON
D401
OFF
BATT
– 12 –
TCS-30D
: PB
: REC
: MIC
S303
(POWER)
DRY BATTERY
SIZE "AA"
(IEC DESIGNATION R6)
2PCS. 3V
CN301
DC IN 3V
–
+