Sony TCS-30D - DIAGRAMS; Block Diagram Overview

TCS-30D
– 11 – – 12 –
SECTION 6
DIAGRAMS
6-1. BLOCK DIAGRAM
• SIGNAL PATH
: PB
: REC
: MIC
R-CH: Same as L-CH.
L-CH
R-CH
R-CH
HE901
(ERASE)
HRP901
(REC/PB)
PB PREAMP, MIC AMP, REC AMP
IC301
3
8 16
5
10
PB IN
A
MIC
A
REF
10
REC DRV
OUT A
9
REC DRV
IN A
LINE
OUT A
PB PREAMP
REF
MIC
AGC
ATT
LINE
AMP
AGC
DET
REC
AMP
REC/PB
SWITCH
HEADPHONES
AMP
1
S301-4
(REC/PB)
REC
PB
S301-2
(REC/PB)
REC
PB
REC BIAS
SWITCH
Q102
B+
R-CH
2
GCA
MIC
AMP
R-CH
MIC901
MIC
PULG IN POWER
J302
PB/REC
SW
+
DISCHARGE
SWITCH
Q301
VOL
MUTING
RV301
IN A
OUT
A
IN A
IN B
MUTE
HEADPHONES AMP
IC302 (1/2)
R-CH
+
INV
OUT
INVERTER
AMP
OUT
B
OUT
A
SP901
(SPEAKER)
6
1
8
11
3
RIPPLE
FILTER
POWER
AMP
POWER
AMP
SPEAKER AMP,
RIPPLE FILTER
IC303
REF IN REF CNTL
STANDBY
J301
i
BATT B+
DRY BATTERY
SIZE “AA”
(IEC DESIGNATION R6)
2PCS. 3V
CN301
DC IN 3V
–
+
S303
(POWER)
17
RIPPLE FILTER
Q308
MIC B+
STANDBY
SWITCH
Q304
S301-3
(REC/PB)
REC
PB
B+
PULG IN/OUT
MUTE SWITCH
Q307-1
SPEAKER AMP
SWITCHING
Q306
Q307-2
PAUSE
S302
BATT
D401
ON
OFF
+
MUTE PULSE
GENERATOR
(PAUSE ON)
Q309
+
MUTE PULSE
GENERATOR
(PAUSE OFF)
Q310
MUTING SWITCH
Q302, 303
D301
11 13
VR
BASE
PW
RIPPLE FILTER
IC302 (2/2)
RIPPLE
FILTER
POWER
ON/OFF
12
RIPPLE FILTER
Q305
13
13
+
MOTOR B+
CAPSTAN/REEL
MOTOR DRIVE
IC601
34
VOUT V+
VCONT
8
VSENS
MOTOR
DRIVER
TAPE SPEED
(DOUBLE)
RV602
THP601
S301-1
(REC/PB)
REC
PB
REC TIME
S601
NORMAL
DOUBLE
TH602
TAPE SPEED
(NORMAL)
RV601
SPEED
CONTROL
RV603
MM
M901
(CAPSTAN/REEL)
15
6