Read Sony HCD-M70 Service Manual online
HCD-M70
15
15
MUTING
CONTROL SWITCH
Q404, 405
11
ALC
CLK
(AEP, UK)
TU1
TUNER UNIT
(EXCEPT AEP, UK)
FM75Ω
ANENNA
AM
4
3
5
9
8
10
7
1
TUNER ON SWITCH
Q804
4
13
14
2
DET AMP
Q302
16
12
2
X301
4.332MHz
RDS DECODER
IC326
D321
D401
(AEP, UK)
17
5
8
31
23
14
30
CAPSTAN/REEL
MOTOR DRIVE
Q341, 343
29
1
6
32
95
94
TRIGGER
PLUNGER DRIVE
Q342, 344
M
M
(TAPE DECK BLOCK)
6
5
10
2
33
M901
(LOADING)
(CAPSTAN/REEL)
OPEN
CLOSE
M
M
LOADING
MOTOR DRIVE
IC320
SIGNAL PATH
: TUNER (FM/AM)
: TAPE PLAY
: REC
FM ANT
ANT GND
ANT GND
AM ANT
L-CH
R-CH
R-CH
TUNED
DI
CK
CE
DO
FM DET
MUX
X1
X0
RDATA
RCLK
INPUT2
INPUT1
OUT2
OUT1
SYSTEM CONTROLLER
IC801 (2/3)
C-SQSO/RDS-DATA
RDS-IN
TUNED
TU-DATA
C-CLK/TU-CLK
TU-CE
TU-COUNT
ALC
21
REC/PB
MOT-CON
SOL-CON
SENSOR
T-MODE
TC-SW
TRAY-OPEN
TRAY-CLOSE
TRAY-SW
S1
DISC TRAY
OPEN/CLOSE DETECT
R-CH : R-ch is omitted due to same as L-ch.
16
REC-MUTE
20
L-MUTE
34
BIN (L)
15
13
14
28
27
EQ-OUT (L)
26
PB-OUT
(L)
TAI (L)
MUTE
REC/PB EQ AMP, ALC
IC401
A/B
MUTE
REC MUTE
24
23
REC-OUT
(L)
(L)
REC-IN
(L)
ALC
(L)
16
R-CH
R-CH
EQ
ALC
BIAS OSC
T401
REC BIAS
SWITCH
Q402, 403
COM +8V
BIAS OSC
Q401
REC BIAS
(L)
MUTING
Q100, 101
RV101
REC BIAS
(R)
RV201
L-CH
R-CH
ERASE
R-CH
HRPE901
(RECORD/PLAYBACK/ERASE)
R-CH
R-CH
T101
BIAS
TRAP
SQSO
D
TU-ON
(Page 16)
B
CLK, SQSO
(Page 14)
E
TU-L
(Page 16)
F
TC-L
(Page 16)
G
REC-L
(Page 16)
FM75Ω
6-2.
BLOCK DIAGRAM – TUNER/TAPE DECK Section –
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