Read Sony TCM-900DV Service Manual online
TCM-900DV
10
10
4-2. BLOCK DIAGRAMS – MAIN SECTION (2/2) –
S902
S903
S904
J102
S701
J801
S801
Q306
Q113
Q114
Q115
Q103
Q202
D803
PH701
X301
X701
S702
Q301
L801
D901
SP901
(F/R GEAR)
POWER
REEL ROTATE
DET
4MHz
4MHz
(FF/REW)
(SPEAKER)
DPC
AUTO
MANUAL
OFF
REC TIME
NORMAL
DOUBLE
OFF
ON
REC
OSC2
SCK
SO
CS
CD
LCD
DRIVER
COM1-4
SEG1-18
DISPLAY
LIQUID
CRYSTAL
(3.6V)
B+
OSC1
LIN
AOUT
XT
XT
BUSY
SK
SO
SI
CS
STBY
INV
OUT
OUT
IN2
PWR
OUT2
OUT2
IN1
PWR
OUT1
+
+
REF.
+
-
-
+
POWER OUTA
POWER OUTB
POWER +INA
POWER -INA
POWER -INA
POWER +INB
POWER -INB
POWER
AMPA
POWER
AMPB
ALC
ALC IN
REP RST
REP CS
REP BUSY
REC CTL
REP ON
F/R GEAR
SW
VOR IN
DPC SW
JACK DET
PHOTO IN
TAPE SPEED SW
KEY IN
SP SW
W
AKE UP
VOR SW
LCD/REP DATA OUT
REP SI
LCD REP SCLK
LCD CS
PIC ON/OFF
X1
X2
RESET
REP QUE/REV
MUTE CTL
DRY BATTERY
SIZE "AA"
2PCS, 3V
(IEC DESIGNATION R6)
DC IN 3V
+
RESET
LCD901
VOL
-
-
11 14
15 32
IC REPEAT
A/D
TIMING
OSC
MUC I/F
RAM
ADPCM
ANALIZER
SYNTHESIZER
D/A
AMP
Q302-305
REPEAT,
QUE/REV BEEP OSC
MUTE
Q307
Q307
POWER
(+3.6V)
7
5
MUTE
ATT
Q102
Q110
AMP
3
1
POWER AMP
FILTER
RIPPLE
REF
VCC
FILTER
RIPPLE
+B(BATT)
Q201
PRE AMP,
POWER AMP
EAR
SYSTEM
CONTROL
POWER
(3.6V)
KEY MATRIX
S905-911
+3.6V REG
+3.6V REG
DC-DC
CONVERTOR
+B
(BATT)
+B
+B
+B
+3.6V
POWER
(+3.6V)
(PIC)
(PWR)
+B SWITCH
Q801-802
ATT
Q501
AMP
Q502
LED DRIVE
Q503
VOR
AMP
REC
PIC
PIC
RV301-1
RV301-2
Q702
Q701
RESET
Q108
POWER
(3.6V)
EVR
+B
(+3.6V)
D801
• Signal path.
E
: PB
a
: REC
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