Sharp XL-520W Service Manual page 22

XL-520W/CP-520
LED PWB-A4
A
B
FW701
C
R70C
SWITCHING
3.3K
C711
Q702
3.3/50
KTC3199GR
2 3
R70A R70B
1K
1K 1
Q701
KRC102M
RESET
R70F
82
+B
D
+B
18 17 16 15 14 13 12 11 10
+ – – +
LEVEL
SHIFT
E
LEVEL
SHIFT
+ – – +
+ –
25
19 20 21 22 23 24
+B
F
CD MOTOR
+
M801
M
PWB-D
SLED
–
+
M802
M
SPINDLE
–
SW801
PU-IN
PICKUP UNIT
TR+
FO+
FO–
G
TR–
ACTUATOR
1/2VCC VR1A
C
F
B
A
E
GND
MON
C2A
LD
VCC
H
• NOTES ON SCHEMATIC DIAGRAM can be found on page 29.
1
DISPLAY PWB-A3
3D SURROUND
FUNCTION
SW714
STOP/
R717
CLEAR
3.9K
SW713
PRESET X-BASS/
R718
EQUALIZER
UP
2.7K
SW712
PRESET
R719
DOWN
1.8K
SW711
MEMORY/
R720
SET
1.8K
SW710
REC/
CD PAUSE/
PAUSE
TUNING UP
SW718
ON/
STAND-BY
R722
R721
10K
10K
+B
µ-COM VDD
+B
µ-CON+5V
+B
SYS STOP
REMOCON
RESET
+B
R70M D722
100
1SS133
Q704
ZD701
RX701
2SD468C
MTZJ3.3B
21043TE2
+B
R70G
R70H
D723
1K
10K
1SS133
R70K
C715
2 3 1
120
R70J
100/10
10K C716
R70L
C714 47/16
1K
Q703 470P
KTC3199GR
SWITCHING
SWITCHING
Q707
KTA1266GR
+B
SWITCHING
R798 Q706
47K KRC102M
2 3
R799
2.2K 1
C871
330/10
+B
9 8 7 6 5 4 3 2 1
– +
+ – – +
LEVEL
SHIFT
T.S.D
LEVEL
SHIFT
+ + –
– +
STAND
–
-BY
26 27 28 29 30 31 32 33 34 35 36
CD STB FMSO
TS2O
R873
4.7K DMEO
GAIN4 FSO
R874
10K
SP+ SP+
6 6 6
SP– SP–
5 5 5
SL+
SL+
4 4 4
SL– SL–
3 3 3
PU-IN
PU-IN
2 2 2
GND
GND
1 1 1
TR– TR–
1 1 1
TR+ TR+
2 2 2
FO+ FO+
3 3 3
FO– FO–
4 4 4
GND GND
5 5 5
PD PD R818
SWITCHING
6 6 6
18
VR VR Q801
7 7 7
2SA1015GR
LD
LD
8 8 8
R80E 100/10
82K
C R80A 82K +5V
C
1 1 1
F R80B 82K F
2 2 2
B R80C 82K B
3 3 3
A R80F 82K A
4 4 4
E R80G 82K E
5 5 5
1/2V +B
6 6 6
+B
+5V
7 7 7
1/2VCC
2
Figure 22 SCHEMATIC DIAGRAM (3/4)
SW708
1 2 3 4
R707
10K
SW707
100
1
R708 2
5.6K
SW706 3 COM1
R724 R725
4 COM0
47K 47K
BAND
R709
5
VLC3
3.9K
SW705
6
VLC2
+B
7
VLC1
+B R726
R710
8 VDD
2.7K 1K
SW704
9 OSC2
L701
100µH
OSC1
10
X701
VOL
R711
8MHz
11 VSS
UP
1.8K
SW703
X702
12 XI
32.768kHz
13 XO
VOL
R712
C702
14 MMOD
DOWN
1.8K
22P(CH)
SW702
VREF
15
R728 1K
16 AREA
PLAY/
R730 1K
R727
17 KEY1
15K
R731 1K
18 KEY2
R732 1K
19 POWER
VSM
20
R729
F.P
21
10K
R713
RUN PLS
22
10K
23 CAM SW
+B
24 VREF+
25
+B
26
+B
SWITCHING
!
Q705
R70N KRA102M
10(Fusible)
3 2
+B
1
R70R R735
47K
100
R736
47K
ZD702
MTZJ6.2C
R737
47K
R738
47K
R739
47K
P CONT
LED+B
+B
M 12V
C704 +B
0.022 µ-CON+5V
GND
+B
+B
+B
C811
22/16
R817
15K
C810
0.1(ML)
R816
47K
R819
4.7K
+B
R814
1M
R813
2.2K
R812
18K
R810
2.2K
R811
27K
R809
C807
100K
0.22(ML)
+B
R801
C804
22
47/16
C802
TRACKING
ERROR
BALANCE
+B
3 4
– 22 –
LCD
LCD701
5 6 7 8 9
10 11 12 13 14 15 16 17 18
99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76
IC701
IX0189AW
SYSYTEM MICROCOMPUTER
27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46
+B
+B
C822
R823
47/16
100K
10/16
R820
33K
DMEO
24 23 22 21 20 19 18
25
FMSO
26
FMSM
27
FMSP
28
IC801
TA2065F
THLD
29
TS2O SERVO
AMP.
30
31
C809
0.015
TS2P
32
TS1N
33
TS1P
34
TSO
35
TEL1
36
TEL2
37
R803
22K
TSN
38
C813
39 40 41 42 43 44 45
0.0022
TPO
R804
120K
F
VR802
100K(B)
B
A
E
LDO
PD
5
C
19 20 21 22 23 24
75
74
SEG27 73
SEG28 72
SEG29
71
SEG30 70
SEG31 69
N.C 68
N.C 67
N.C 66
N.C 65
R783 1K
SRS1
64
R782 1K
SRS2 63
R781 1K
BUS3 62
R780 1K
BUS2 61
R779 1K
BUS1 60
R778 1K
BUS0
59
R777 10K
CD STB 58
R776 1K
PU-IN 57
R775 1K
LID-SW 56
R774 1K
BIAS 55
R773 1K
B-CAN
54
R772 1K
REC
53
R771 1K
MOT
52
R770 1K
SOL 51
R769 220
47 48 49 50
R768 220
R767 1K
R766 1K
R765 1K
+B
+B
+B
R821
C823
18K
C824
R822
0.056
330
(ML)
C825
0.039
(ML)
17 16 15
14 FEL2
VR803
100K(B)
13 FEL1
R825
470K
FHLD
12
C826
1/50
FEI
11
C827
R827
470P
150K
FEO
10
R828
2.7K
FEN
9
R837
2.7K
FEP
8
DFIN
7
SBAD
6
RFRP
5
2VRO
C831
4
0.056
+B
(ML)
VRO +B
3
RFI
2
C828
C832
0.056
47/16
RFO (ML)
1
C829
C833
46 47 48
3.9P
220/10
C830
47P
+B
R829
C834
470
0.056(ML)
R838
12K
TP801
3 2
6