Sony SS-CM90, Service Manual

Page: 33 / 137

HCD-M90
32 32
MUTING
CONTROL SWITCH
Q404, 405
11
ALC
(AEP, UK)
TU1
TUNER UNIT
(EXCEPT AEP, UK)
FM75
Ω
ANENNA
AM
4
3
5
9
8
10
7
1 4
13 14
2
DET AMP
Q302
16
2
18
X301
4.332MHz
RDS DECODER
(AEP, UK)
57
23
27
22
25
80
59
CAPSTAN/REEL
MOTOR DRIVE
Q341, 343
58
38
90
91
TRIGGER
PLUNGER DRIVE
Q342, 344
M M
(TAPE DECK BLOCK)
(CAPSTAN/REEL)
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
SYSTEM CONTROLLER
IC306 (2/4) (SUFFIX-11) IC306 (2/4) (SUFFIX-12)
RDS DATA
RDS-INT
TUNED
ST DOUT
ST CLK
ST CE
ST DIN
ALC
43
REC/PB
CAPM CONT1
BTRG
PLAY SW
END SW
TC SW
R-CH : R-ch is omitted due to same as L-ch.
41
REC MUTE
39
LINE MUTE
34
BIN (L)
15 13 14
28
EQ-OUT (L)
26
PB-OUT
(L)
TAI (L)
MUTE
REC/PB EQ AMP, ALC
IC401 (SUFFIX-12) IC401 (SUFFIX-32)
A/B
MUTE
REC-MUTE
24
23
REC-OUT
(L) REC-IN
(L)
ALC
(L)
21
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
K
TU-L
(Page 33)
L
TC-L
(Page 33)
M
REC-L
(Page 33)
FM75
Ω
27
TU
+9.5V
(AEP, UK)
IC326 (SUFFIX-14)
IC326 (SUFFIX-16)
6-4. BLOCK DIAGRAM – TUNER/TAPE DECK Section –