Diagrams; Block Diagram - Sony M-800V Service Manual

5-1. Block Diagram

MAIN BOARD
MIC901 MIC
S101 (4/6)
J102
REC
MIC
(PLUG IN POWER)
PB
Q303,Q304
SWITCH
HRPE901
REC/PB/ERASE
HEAD
(REC/PB)
(ERASE)
Q301
HRPE902
REC/PB/ERASE
HEAD
(REC/PB)
Q302
DIR
(ERASE)
SWITCH
Signal path
: PB
IC501
SIGNAL LEVEL
: REC
SENSOR
8
VCC
H
1
IN
S501
L 6
OUT1
VOR
RCV
5
OFF
TIME
SECTION 5

DIAGRAMS

S101 (5/6)
REC
IC101 (2/2)
POWER AMP, ALC
PB
IC101 (1/2)
PRE AMP + IN A
+
3
POWER
- IN
16
AMP A
4 -
RV101
Q101
- AMP
VOL
5 -
PRE
15 POWER
+ IN
AMP
OUT
+ AMP B
1
6 +
RF OUT
RIPPLE
7
S101 (2/6)
ALC
FILTER
PB
REC
S101 (1/6)
REC
PB
S601 (1/2)
TAPE SPEED
2.4cm
B+
1.2cm
PB REC
S101 (3/6)
800V
Q701 Q702 Q703 - Q705
BUFFER CUE OSC CUE SWITCH
Q501
MUTE
Q706
OSC
850V
OUT A
14
PB
OUT B
11
REC
ALC IN
S101 (6/6)
9
850V
Q602
FAST PB SWITCH
VREF
12 REF V
RV602
BIAS
TAPE
SPEED
1.2cm
IN+
13
RV601
OFF
TAPE
SPEED
ON
2.4cm
S602 11 14
FAST PB
2.4cm
S601 (2/2)
TAPE
1.2cm
SPEED
Q601
SWITCH
850V
800V
Q403
S301
PAUSE
OFF ON
Q405
VOICE
MIRROR
Q402
Q401 (1/2)
11 11
IC601
MOTOR SERVO
OSC
WAVEFORM STARTUP
DRIVER
DET DIR LOGIC
+
-
SPEED LOCKING
DET PROTECT
CURRENT STARTUP
DET DET
15 19
B +
D401
REC
B+
IC401
BATTERY LOW DET
7 4
VCC OUT
Q401 (2/2)
850V
M-800V/850V
J103
EAR
SP901
(SPEAKER)
B+
(+3V)
UOUT
20
VOUT M901
M
1
(MOTOR)
WOUT
2
B+
S102
(POWER)
J101
DC IN 3V
DRY BATTERY
SIZE "AAA"
(IEC DESIGNATION R03)
2PCS. 3V
S103
B+
(DIR)
LED BOARD
S401
CUE MARKER
D403 D402
Q406
BATTERY
850V