Diagrams; Block Diagram - Sony TCM-23DV Operating Instructions (primary manual) Service Manual

6-1.

BLOCK DIAGRAM

MIC101
MIC
J101
MIC
(PLUG IN POWER)
Q101
AGC
CONTROL
S101
(REC/PB)
PB
S101 (4/6)
REC
HRP901
(REC/PB)
VREF
HE901
S101 (1/6)
(ERASE)
POWER ON B+
S101 (6/6)
(REC/PB)
PB
RV602
REC SPEED CONTROL
05
SECTION 6

DIAGRAMS

VREF
MIC AMP, REC/PB EQ AMP Q104
IC101 (1/3) PB EQ REC B+
SWITCH
MIC IN
PRE
MIC
28
OUT
AMP
2
+
EQ IN
EQ
29 NF
AMP
PRE
NF
1
ALC
REC B+
CONT
ALC
5 Q103
REC EQ
SWITCH
REC OUT REC IN
REC
4 3
AMP
POWER ON
B+
S601-2
CAPSTAN/REEL MOTOR DRIVE
REC TIME
IC101 (3/3)
THP601
DOUBLE NORMAL
VS
18
S601-1
RV601
REC TIME
TAPE SPEED
DOUBLE NORMAL
(NORMAL SPEED)
THP602
RV601
GVN VREF
19
RV603
TAPE SPEED
(DOUBLE SPEED)
GVN CONT
20
GVN OUT
M901 MOTOR
M
16
(CAPSTAN/REEL) DRIVER
– 9 –
S101 (2/6)
(REC/PB)
PB
RV101
VOL
REC
BUFFER
POW IN
Q102
11
+ VOR
DELAY
7
S104
VOR
REC B+
H L OFF
Q105
REC B+
VOR OFF
SWITCH
Q111
VOR ON
R/P
SWITCH
SW
REC B+ 23
S101 (5/6)
(REC/PB)
MIC
PB B+
VCC
26
REC B+
PB
REC VREF
VREF 27
REFERENCE VOLTAGE
VCC B+
MUTE SWITCH
Q107, 108
S101 (3/6)
POWER AMP, VOR CONTROL,REGULATOR
IC101 (2/3)
POW OUT 1
12
POWER
POW OUT 2
AMP
14
POWER ON B+
VOX
D101
BATT
LED
DRIVE
24
Q112
PB B+
SWITCHING
PAUSE
PAUSE
22
REC/PB
MUTE
MUTE
MUTE 21 SWITCH
Q109, 110
POWER ON B+
REGULATOR
(POWER)
VCC
RIPPLE
15
FILTER
REFERENCE
VOLTAGE
BATTERY B+
GENERATOR
– 10 –
TCM-20DV/21DV/22DV/23DV
SIGNAL PATH
: PLAY
: RECORD
(REC/PB)
PB
REC
SP901
(SPEAKER)
J102
EAR
PB B+
Q106
REC/PB
MONITOR LEVEL
SWITCHING
S105
PAUSE .
OFF
ON
REC B+
PB B+
DRY BATTERY
SIZE "AA"
(IEC DESIGNATION R6)
2PCS. 3V
S102
CN101
DC IN 3V
– +