Read Sharp XL-DAB9H (serv.man3) Service Manual online
XL-DAB9H
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
+
+
-
-
SP+
SPÐ
SL+
SLÐ
PU-IN
SL+
SLÐ
PU-IN
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
TES
STDA
ST
STR
TES
CON
CON
CON
CON
CON
INT
INT
INT
RE
RCHO
LRVSS
LRVDD
LCHO
XVDD
XIN
XOUT
XVSS
AMUTEB
DOUT
DVDD
DVSS
DVDD1.8
VVSS2
VCOC2
VPREF2
VPDOUT2
DV
DV
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
LASER
DRIVER
CON
VOL
CONSTANT
VOLTAGE
STEREO
SD
CF351
FM IF
FM IF
24
22
21
20
19
18
17
16
15
14 13
12
11
10
9
8
7
6
5
4
3
2
1
IC303
LA1832S
22 21 20
17 16
15 14 13 12
1 2
3
4
5
6
7 8
8
9
7
10
6
11
5
12
4
13
3
14
2
15
1
16
9
10 11
IC302
LC72131
IC521
LC72723M
X352
X351
456kHz
456kHz
L354
LOW PASS
FILTER
FILTER
XI
N
NC
CE
DI
CL
MO/ST
FM
FM
DO
CE
DI
CL
DO
FM
IN
XO
U
T
DATA
CLE
VSS
AOUT
VDD
AM
IN
NC
IF
IN
IF
REQ
SW
VCC
VR351
10K(B)
10K(B)
FM MUTE LEVEL
23
+5V
MUTE
R-MUTE
MO/ST
L-CH
OUT
R-CH
OUT
MPX
V
CO
AM
LOW
C
UT
FM/AM
O
UT
MPX
IN
AM
OSC
O
UT
FM
AFC
AM
RF
IN
VSM
AM
OSC
IN
AM
MIX
O
UT
AM
IF
IN
GND
REG
FM
IF
IN
SD
STEREO
FM
DET
PHASE
(AM/FM)
IF
OUT
PHASE
FM IF DET./FM MPX./AM IF
FE301
FM FRONT END
4.5MHz
Q351
SWITCHING
R_MUTE
PLL TUNER
RDS
ZD351
Q360
FM+B
TUN+B
TUN+B
FM+B
FM RF
AM OSC OUT
A_GND
+5V
D_GND
CF302
1
2
3
2
1
3
4
5
6
7
8
10.7MHz
FM IF
CF301
1
2
3
10.7MHz
VT
FM
SO301
FM
ANTENNA
TERMINAL
Q301
Q521
FC801
Q802
X801
Q805
IC802
IC801
Q801
Q809
Q808
Q810
+B1
+B1
Q806
Figure 4-1 BLOCK DIAGRAM (1/4)
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