Chapter 4. Diagrams; Block Diagram - Sharp XL-MP40H Service Manual

XL-MP40H
Audio E Market XLMP40H Service Manual XL-MP40H
CHAPTER 4.
DIAGRAMS

[1] BLOCK DIAGRAM

AM LOOP
ANTENNA
1 1
2 2
3 3
FM ANTENNA
+
L-CH
-
SO601
SPEAKER
TERMINAL
-
R-CH
+
JK101
HEADPHONES
LF651
LINE
FILTER
AC POWER
SUPPLY CORD
Except for U.K.: AC 230 V, 50 Hz
U.K.: AC 230-240 V, 50 Hz
D305
+B
L302
AM
Tracking AM ANT.
BAND PASS
FILTER
BF301
36 35 34
FM IF
CF301
CF303
Q303
FM IF
IC101
LA4631++
POWER AMP.
13 12 11 10 9 8 7
(L)
(R)
D102
D101
D103
1 1 1
2
2 2 3
D104
3 3 4
4 4 5
5 5 6
D656
D659
T601
POWER
D658
TRANSFORMER
Figure 4-1 BLOCK DIAGRAM (1/3)
AM BAND
COVERAGE fL
L306
AM OSC
3 4
2 5
1 6
TP-VT
Q302
L304
33 32 31 30 29 28 27 26 25 24 23 22
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
CF304
AM IF
L305
AM IF
6 5 4 3 2 1
POW_STB
Q104
Q613
Q664
Q660
+B
Q612
P_CON
D657 -B
Q662
Q665
Q661
Q658
Q611
4 – 1
CD PICKUP UNIT
ACTUATOR
MD
CONSTANT LD
VOLTAGE
VTCC
Q301
CD MECHANISM UNIT (222)
X301
75KHz
21 20 19
16 17 18
CNP704
1 2 3 4 5
IC680
AN78L05
VP
CONSTANT
VOLTAGE
REGULATOR
+5V
3 1
2
3 1
2
IC681
AN78L05
CONSTANT
VOLTAGE
REGULATOR
-B
FO-
FO-
TR- TR-
TR+
FO+
TR+
MD
FO+
VR
LD
GND
F
C
VR
B
A
D
E
F
VCC
VC
C
B
A
D
E
MECHANISM PWB
+
SPINDLE
M
1
MOTOR
2
3
+
SLED
M 4
MOTOR
5
6
PICKUP IN
TO DISPLAY PWB
6
Q6
TAPE MECHANISM ASS'Y
(221)
ERASE HEAD
L-CH
RECORD/PLAYBACK
HEAD
R-CH
SOL901
SOLENOID
SW902
PLAY
PLAY
SW901
FOO
FOOL
M
M901
TAPE
MOTOR
470
PLSN
PHOTO
INTERRUPTER