Chapter 4. Diagrams; Block Diagram Main - Sharp CD-MPS440W Service Manual

CD-MPS440W
CHAPTER 4.
DIAGRAMS

[1] BLOCK DIAGRAM MAIN

ANTENNA
AM LOOP
ANTENNA
3
2
1
CNP301
FROM
CD SECTION
CNS205
TAPE 1
PLAYBACK
HEAD
L-CH
R-CH
P.B.
L-CH
R-CH
RECORD/
PLAYBACK HEAD
TAPE 2
ERASE
HEAD
TAPE 2
SW801
INITIALIZE
SW803
REC
SOL801
SOLENOID
PHOTE INTERRUPTER
TAPE 1
SW802
INITIALIZE
SOL802
SOLENOID
PHOTE INTERRUPTER
FM
FM IF
T304
6
B.P.F
IC301
TA7358AP
BF301 1
FM FRONT END
4 5
2 3 7
FM RF L302
OSC BUFF
AM TRACKING
T302
T306
AM BAND
COVERAGE
CNP205
L
1
2
R
3
L(T1)
R(T1)
SWITCHING
L(T2)
REC
R(T2)
L NF
R NF
L REC
R REC
SWITCHING
REF
Q801 Q807,Q808
Q803 Q813,Q814
SWITCHING
+B2
Q802
Q821
Q822
Q823
BIAS CONT
SWITCHING
Q810
SWITCHING
Q811
SWITCHING
Q820
Q809
U_CON5V
Q806
Figure 4-1 BLOCK DIAGRAM (1/4)
FM IF
CF303
Q306
IC303
9
LA1832S
8
T351
FM IF DET./
AM IF
FM MPX./AM IF
1
2
AM MIX
L303
FM MUTE
IC303
LEVEL
LA1832S
VR351
24 23 21
FM OSC
Q302
X352
VT 4.5 MHz
22
20 1 16
OSC IC302
LC72131
PLL(TUNER)
7
FM
FM
Q360
SWITCHING
1
+B2
13
24
P.B
4 L
PB
2
21 R
23
AN7345K
3 5
PLAYBACK AND RECORD
22 20
/PLAYBACK AMP.
6 7
L REC
18 R
9
REC
16
L NF
8
17
R NF
14
10 ALC
15 12 11 19
+B2
TAPE MOTOR
DRIVER
M801
TAPE M Q815 Q818
MOTOR
Q804 Q817
SOLENOID
DRIVER
+B2
+B3
Q805 Q816
SOLENOID
DRIVER
4 – 1
DZH05C2+
CF351
X351
456 kHz
CF352
4 13
5 9 8 17
AM IF GND FM MO/ST
VCC VCO
14
DET L
R
15
FM/AM
FM/AM
OUT MPXIN
10 7 6 18 16 12
Q351
SWITCHING
4
15 11 3 5 6
17
FM/AM MO/ST
9 10 21 8
IC801
CNP803
TAPE_SW
1
T2_RUN_PLUS
Q812
2
Q819
T2_SOL
3
T1_SOL
4
T1_RUN_PLUS
5
CH_SW
6
T_MOTOR
7
BIAS
8
REC/PLAY
9
REC
10
FRO
DISPLAY S
CNS2
+B2
CNP202
7 6 5 4 3 2
9
L
AUX
1
R
1
L
TAPE
1
R
L 1
TUNER
1
R
1
L
CD
1
R
+B
+B
+B
VF
VF
ÐB
+B
DGN
+B