Voltage - Sharp CD-PC672 Service Manual

CD-PC672
FM AM LOOP
ANTENNA ANTENNA
L301 1
FM B.P.F
2
L312
AM TRACKING
T331
CNS11
FROM CD SECTION
CNP11
L-CH
TAPE 1
R-CH
PB HEAD
REC
P.B
L-CH
Q103~Q106
TAPE 2
R-CH
REC PB HEAD
AC BIAS
ERASE
HEAD
IC301
FM IF
TA7358AP
6 T301
FM FRONT END
9
3 4 5 7 8
FM OSC
FM RF
T301
FMOSC
Q301
OSC BUFF
AM OSC
T333
VT
FM +B
JK401
VIDEO IN
L
R
L
R
1
2
IC101
3
AN7345K
PLAYBACK AND RECORD
/PLAYBACK AMP.
L(T1)
1
R(T1) 24 P.B.
L(T2)
2
R(T2) 23
SWITCHING
L NF 3
R NF 4
H/N
POP REDUCE 6 T1/T2
REC
L REC 9
R REC 16
14
REF
12
NOR/
HIGH T1/T2
15
SWITCHING SWITCHING
Q107
Q111
Q108
Q109
SWITCHING
BIAS
OCS
Q128
L104
Figure 18 BLOCK DIAGRAM (2/3)
+B4
CF301
AM IF
T382 CF351
FM IF IN
1 3 5 6
AM IF GND
AM MIX
IC303
LA1805
FM/AM IF MPX.
24 23 22 7
X352
4.5MHz
20 22
1 15 16 11
OSC
IC302
LC72131
PLL (TUNER)
7 10
FM
Q351
SWITCHING
L
VIDEO2
R
VIDEO1
L
R
TAPE
L
R
TUNER
L
R
CD L
R
13 +B4
4 PB
L
21
R
5
20
7 L REC
18
R
8 L NF
34
17
R NF
IC501
38
ALC
10
LV1035M
35
DOLBY PRO LOGIC
37
19
DECORD
36
Q110
SWITCHING
BAIS
Q126
Q124
– 18 –
SWM3
FOOL PROOF
SWM4
F.A.S
SOLM1
SOLENOID
SWM5
CAM
+B4
VR381
MPX VCO ADJ
T381
MONO/ST
VOLUME
FM DET
21 20 15
13
VR702
FM DET VCO
FM+B MO/ST
L
9
R
10
DET OUT MPX IN FM/AM
17 16 11
Q382
Q381
FM/AM
SWITCHING
+B7 1 IC704 3
2

VOLTAGE

3 4 6
5
REGURATER
+B4
17
21
+B4
23 24 25 56
51
61
52
20
IC401
60 28
LC75396N
53
17 R
AUDIO PROCESSOR
59
31 L
54
58
30
55
18
57
9
63 49 33 48
REC
Q121
Q122
MUTING
L
44 R 33
45 48
22
9
33 32
T1/T2
X501
M
MM
TAPE MO
JOB
Z
13
IC9
LA4
BAIS
PO