Diagrams; Block Diagram - Sony TCM-20DV 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)
S101 (6/6)
(REC/PB)
PB
REC
05
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SECTION 6

DIAGRAMS

MIC AMP, REC/PB EQ AMP Q104
IC101 (1/3) PB EQ
SWITCH
MIC IN
PRE
MIC
28
OUT
AMP
2
EQ IN
29 EQ NF
AMP
PRE
NF
1
ALC
CONT
5 ALC
Q103
REC EQ
SWITCH
REC OUT REC IN
REC
4 3
AMP
POWER ON
B+
S601-2
CAPSTAN/REEL MOTOR DRIVE
REC TIME
THP601
DOUBLE NORMAL
VS
POWER ON B+ 18
S601-1
RV601
REC TIME
TAPE SPEED
DOUBLE NORMAL
RV602
(NORMAL SPEED)
SPEED CONTROL
THP602 RV601
GVN VREF
19
RV603
TAPE SPEED
(DOUBLE SPEED)
GVN CONT
20
GVN OUT
M901
M
16
(CAPSTAN/REEL)
– 9 –
VREF
S101 (2/6)
(REC/PB)
REC B+
PB
RV101
VOL
REC
BUFFER
Q102
+
+
S104
VOR
REC B+
H L OFF
REC B+
REC B+
Q111
VOR ON
SWITCH
REC B+
IC101 (3/3)
S101 (5/6)
(REC/PB)
PB B+
REC B+
VREF
REFERENCE VOLTAGE
MOTOR
VCC B+
MUTE SWITCH
DRIVER
Q107, 108
POWER AMP, VOR CONTROL,REGULATOR
IC101 (2/3)
POW OUT 1
12
POW IN
POWER
11 POW OUT 2
AMP
14
VOR
DELAY
POWER ON B+
7 VOX
D101
BATT
LED
Q105 DRIVE
24
VOR OFF
SWITCH
Q112
SWITCHING
PAUSE
R/P
SW
23 PAUSE
22
REC/PB
MUTE
MUTE 21
POWER ON B+
MIC
VCC
26 REGULATOR
PB VCC
RIPPLE
15
FILTER
REC REFERENCE
VREF
27 VOLTAGE
GENERATOR
– 10 –
TCM-20DV/21DV/22DV/23DV
• SIGNAL PATH
: PLAY
: RECORD
S101 (3/6)
(REC/PB)
PB
REC
SP901
(SPEAKER)
J102
EAR
PB B+
Q106
REC/PB
MONITOR LEVEL
SWITCHING
PB B+
S105
PAUSE .
OFF
ON
MUTE
SWITCH REC B+
Q109, 110
PB B+
DRY BATTERY
SIZE "AA"
(IEC DESIGNATION R6)
2PCS. 3V
S102
(POWER)
CN101
DC IN 3V
– +
BATTERY B+