9
9
TCM-900DV
4-1. BLOCK DIAGRAMS – MAIN SECTION (1/2) –
MIC901
S901
J101
RV401
T101
X401
Q111
Q101
RV604
M601
RV901
DPC
768kHz
MOTOR
FLAT MIC
MIC SENS
L
H
SPEED CONTROL
L
R
R
FWD
REV
RECORD/
FWD
REV
PB
REC
FWD
REV
FWD
REV
PB
REC
PB
REC
PB
REC
L
HRPE901
HEAD
ERASE
PLAYBACK/
S102-2
S101-4
S102-1
S101-3
MIC
(PLUG IN POWER)
MIC
POWER
Q107
ATT
Q104
S101-2
BIAS
SWITCH
Q106
S101-1
DIGITAL
PITCH CONTROL
Q405
Q403
Q404
+B
(BATT)
SPEED CONTROL
SPEED CONTROL
POWER
(+3.6V)
PRE AMP
REC
PIC
OSC
BIAS
Q105
+B
Q401
PB/REC
SWITCH
(PWR)
+B
(PWR)
SWITCH
Q112
GAIN
MOTOR
BRAKE
SWITCH
INITIAL
Q603,608
Q601
MOTOR
BRAKE
Q602
Q109
Q607
Q606
Q604
Q402
SPEED
TAPE
SPEED
2.4cm/s
1.6cm/s
POWER
(+3.6V)
COM
U
V
W
• Signal path.
E
: PB
a
: REC
w w w . x i a o y u 1 6 3 . c o m
Q Q 3 7 6 3 1 5 1 5 0
9
9
2
8
9
4
2
9
8
T E L
1 3 9 4 2 2 9 6 5 1 3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299