Read Sharp CD-C661H (serv.man2) Service Manual online
CD-C661H/HR
– 18 –
Figure 18 BLOCK DIAGRAM (2/3)
Q113
Q114
Q114
VSSD
VDDD
XIN
XOUT
VSSA
VDDA
MPX
IN
DO
CL
DI
CE
XT21
4.332MHz
ICT21
LC72720
RDS DECORDER
X351
456kHz
FM IF
CF351
+B4
+B4
+B4
+B4
SM
VOLTAGE
REGURATER
REGURATER
+5V
QT21
AMP.
FM +B
VT
T306
T302
L341
CF302
DO
CE
CL
DI
CF301
FE301
FM FRONT END
Q360
MPX
VCO
CUT
VCO
CUT
R
L
Q354
Q353
PHASE
Q361
MPX
MPX
MPX
IN
FM/AM
OUT
IF IN
IC303
LA1832
FM/AM IF MPX.
IF
OUT
SD
FM MONO/ST
MONO/ST
AM RF IN
AFC
IN
OUT
VR351
FM MUTE LEVEL
AM OSC
REG
IN
OUT
VCC
FM IF IN
1
2
3
4
5
8
9
17
19
20
18
16
15
14
12
11
10
6
7
13
21
22
23
24
FM IF
AMP
Q301
FM IF
FM
X352
4.5MHz
OSC
STEREO
IC302
LC72131
PLL (TUNER)
IN
AM
FM IN
FMOSC
T351
AM IF
GND
OSC
FM
FM IF
BALUN
AM OSC
VOLTAGE
REGULATOR
AM ANT
AM RF
AM LOOP ANT
TUNER MUTE
MUTING
SO301
ANTENNA
TERMINAL
2
8
6
7
3
4
1
5
4
3
6
5
21
17
12
13
10
11
16
15
22
20
7
1
4
2
3
23
22
21
20
15
14
13
12
Q371
1
24
2
23
3
4
4
4
21
5
20
6
7
17
8
9
16
10
14
12
13
18
H/N
T1/T2
R-CH
L-CH
L-CH
R-CH
P.B
REC
TAPE 2
TAPE 1
L NF
L(T1)
R(T1)
L(T2)
R(T2)
R NF
L
R
POP REDUCE
L REC
R REC
L
R
REC
P.B.
REC
ALC
NOR/
HIGH
T1/T2
REF
L NF
R NF
R NF
PB HEAD
REC PB HEAD
SWITCHING
Q103~Q106
AC BIAS
IC101
AN7345K
PLAYBACK AND RECORD
/PLAYBACK AMP.
PB
ERASE
HEAD
SWITCHING
BAIS
Q126
Q124
L103
Q128
L104
Q111
Q110
Q109
Q107
Q108
SWITCHING
SWITCHING
SWITCHING
+B4
1
2
3
CNS11
FROM CD SECTION
CNP11
SWM3
FOOL PROOF
SWM4
F.A.S
SOLM1
SOLENOID
SWM5
CAM
5
16
4
17
3
18
2
19
1
20
9
IC601
M62439SP
AUDIO PROCESSOR
L
L
R
R
L
R
L
R
L
R
L
R
TUNER
AUX
TAPE
CD
IC704
3
+B7
2
MUTING
Q121
Q122
–B4
13
8
BIAS
OCS
15
19
11
10
JK601
VIDEO/AUX
6
8
3
3
5
+B
8
+B5
K
O
K
O
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