Read Sharp XL-MP8H (serv.man4) Service Manual online
XL-MP8H
4 – 1
CHAPTER 4.
DIAGRAMS
[1] BLOCK DIAGRAM MAIN
F
B
A
A
E
FO+
TR+
TR-
FO-
ACTUATOR
TR+
FO+
FO-
C
F
B
A
E
TR-
C
D
VCC
VC
LD
VR
MD
D
GND
LD
VR
MD
F
B
A
A
E
FO+
TR+
TR-
FO-
C
D
VCC
VC
VC
GND
LD
VR
MD
8
6
5
5
3
13
14
15
16
7
4
2
1
1
9
10
11
12
8
6
5
5
3
13
14
15
16
7
4
2
1
1
9
10
11
12
CD PICKUP UNIT
CD MECHANISM UNIT
MECHANISM PWB
+
+
Ð
Ð
SP+
SPÐ
SL+
SLÐ
SLÐ
PU-IN
GND
GND
PICKUP IN
SLED
MOTOR
MOTOR
SPINDLE
MOTOR
MOTOR
M
M
MP3 DECODER
DIGITAL SIGNAL
PROCESSOR
FOCUS/TRACKING/
SPIN/SLED
DRIVER
EFMIN
SLCO
AVDD
RF
LPF
PHLPF
AIN
CIN
BIN
DIN
FEC
RFMON
VREF
JITTC
EIN
FIN
TEC
TE
TEIN
LDD
LDS
VSS
LPF
PHLPF
AIN
CIN
BIN
DIN
FEC
RFMON
VREF
JITTC
EIN
FIN
TEC
TE
TEIN
LDD
LDS
VSS
AVDD
FDO
TDO
SLDO
SPDO
VVSS1
PDOUT1
PDOUT0
PCKIST
VVDD1
DMUTEB
PUIN
DEFECT
FSEQ
C2F
DVDD
DVSS
DVDD1.8
VVDD3
VVSS3
TES
STDA
STC
STRE
TES
CON
CON
CON
CON
CON
INT
INT
INT
RES
D
C
RCHO
LRVSS
LRVDD
LCHO
XVDD
XIN
XOUT
XVSS
AMUTEB
DOUT
DVDD
DVSS
DVDD1.8
VVSS2
VCOC2
VPREF2
VPDOUT2
DVS
DVD
1
2
3
4
5
6
7
8
9
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
11
12
13
14
15
16
17
18
19
20
21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38
16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
39
80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62
LC78690
1
2
3
4
5
6
2
3
4
5
6
1
2
3
4
5
6
2
3
4
5
6
1
2
3
4
5
6
2
3
4
5
6
7
LA6548ND
VINT
VG3
VO3+
VO3-
CD
RESET
REG-IN
VO4-
VO4+
VIN4
VG4
VREF
VIN2
REG-OUT
VO2+
VO2-
VG2
VO1-
VG1
GND
GND
GND
VO1+
GND
GND
GND
GND
VCC
MUTE
VCC
+B
+B
+B
+B
+B
+B
16.93MHz
+B
+B
FM/AM
OUT
IF
OUT
IF
IN
AM
IN
FM
IN
AOUT
XI
N
XO
U
T
IF
REQ
R
L
FM/AM
MPXIN
MO/ST
VCO
FM
DET
FM+B
GND
AM
IF
AM
MIX
OUT
FM+B
CLK
A_12V
AM IF
OSC
BUFF
10.7 MHz
450 kHz
DO
DI
CE
FM
MO/ST
SWITCHING
FM/AM
IC302
LC72131
PLL(TUNER)
AM
RF
IN
AM
OSC
IN
AM
OSC
O
UT
FM
Q360
Q351
VT
X352
4.5 MHZ
AM BAND
COVERAGE
AM
TRACKING
FM RF
FM OSC
FM IF
T302
T306
L302
L303
X351
456 kHz
ZD351
5.1V
CF351
IC303
LA1832S
FM IF DET.
FM MPX./AM IF
CF352
T351
CF303
CF302
T304
Q302
Q306
BF301
B.P.F
9 10
18
5
4
1
3
21
7
9
8
5
17
6
MUTE
8
21
2
1
20
22
11 12
17
16
15
13
14
12
15
16
23
24
4
10
STEREO
7
SD
6
3
8
4
1
9
6
5
7
OOP/FM
ENNA
CNP301
IC301
TA7358AP
FM FRONT END
+B6
3
2
1
DI
DO
SD
TUN_L
TUN_R
FM_ST
CE
CL
AM
FM
D
C
C
D
F
S
LASER
DRIVER
CONS
VOLT
CONSTANT
VOLTAGE
FC801
Q802
X801
Q805
IC802
IC801
Q801
Q809
Q808
Q810
+B1
+B1
+B1
Q806
Figure 4-1 BLOCK DIAGRAM (1/4)
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