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Model
XL-3000 (serv.man6)
Pages
8
Size
456.63 KB
Type
PDF
Document
Service Manual
Brand
Device
Audio / System / Schematic Diagrams
File
xl-3000-sm6.pdf
Date
PREV: Sharp XL-3000 (serv.man5) Service Manual

Sharp XL-3000 (serv.man6) Service Manual ▷ View online

XL-3000H
– 32 –
A
B
C
D
E
F
G
H
1
2
3
4
5
6
0.6V
2.3V
0V (0.9V)
5V
2.5V
2.1V (2.7V)
2.1V (2.7V)
(4
3V)
2.9V
0V
5V
5V
5V
2.1V
2.1V
2.1V
9.6V
0.06V
0.04V
9.5V
2.3V
2.53V
0V
3.9V
(0V)
0V
0V
3.7V
(11.4V) 
1.7V
5.1V
4.8V
0.1V
0.1V
2.6V
0V
2.6V
0.9V
0.9V
5.2V
2.6V
(2
6V)
0V
(0V)
+B
+B
+B
+B
0.84V
0.15V
9.5V
FM  FRONT  END
FM IF DET/
FM MPX/AM IF
PLL(TUNER)
AM IF
1
2
3
1
2
3
1
2
3
BALUN
VSM 
AM  RF 
OUT 
OUT 
IN
IN
CUT 
AM  LOW
FM/AM 
FM  AFC
AM  OSC
AM  OSC
FM  DET
STEREO
SD
GND 
AM  IF 
REG 
AM  MIX OUT 
IN
IN
FM  IF 
LOW PASS
FILTER
8
7
6
5
4
3
2
1
9
8
7
6
5
4
3
2
1
PD
AM IN
FM IN
VDD
AIN
AOUT
VSS 
X OUT
22 21 20
19
18
17 16 15
AM SIGNAL
FM SIGNAL
FM
FM
MUTE
CE
DI
CL
DO
X IN
23
22
21
20
19
18
24
8
7
6
5
4
3
2
1
AM
GND
FM
75ohms
TP301
CHASSIS
GND
FM Mute
Level
AM Band
Coverage
AM 
Tracking
ANTENNA
TERMINAL
4.5MHz
L354
C367
1/50
R350
2.7K
SO301 
C360
0.022
C362
3.3/50
C349
0.001
C380
10/16
D304
1N4148
D303
1N4148
L342
2.2
µ
H
C351
0.022 
R351
5.6K
VR351
10K(B)
L353
1mH
FE301 
C346
0.022
C345
0.022
R369A
68 
R369B
82 
C348
100/16
R343
180
C341
0.022
C347
0.022 
R346
330
CF301 
R344
680
R348
680
R347
6.8K
R349
33
Q301
2SC380 O
R323
68K 
C334
27P(UJ)
C335
560P
C337
0.022
T306
C329
0.022 
C331
0.047
C332
0.022
L341
X351
C366
0.001
IC302 
LC72131
IC303
LA1832S  
C302
0.001
CF302 
D301
1N4148
D302
1N4148
C330
12P(CH)
T302
T351
CF352 
C350
0.022
C352
10/16
R352
1K
C353
0.022 
C354
0.022
CF351 
C363
0.022
C364
10/16 
C365
0.022 
R358
8.2K
C343
33P
C361
0.022
R382
330
C394
47/16
C397
0.022
R386
330
R381
10K
C393
1/50
R380
1.5K
R379
2.2K
C392
0.001
C387
0.022
X352
C381
12P(CH)
C382
15P(CH)
R374
1K
R373
1K
R372
1K
R371
1K
C384
0.001
R345
4.7K
R336
5.6K
C301
0.012
VD301
SVC348S 
• NOTES ON SCHEMATIC DIAGRAM can be found on page 23.
Figure 32 SCHEMATIC DIAGRAM (5/8)
– 33 –
XL-3000H
7
8
9
10
11
12
0.6V
2.3V
0V
5.1V
2.5V
2.5V
2.5V
2.5V
1.3V
1.3V
0V
0V
0V
0V
5.1V
2.5V
2V
2.5V
5.1V
V
2.3V (0V)
1.3V
1.3V
4V
(2.2V)
2.1V
(1.2V)
3.8V
(1.9V)
3.8V
(4.3V)
2.9V
0V
5V
5V
0V
0.1V
0V
3.9V
(0V)
(0V)
3.5V
0V
3.7V
(11
.4V)
 
5.2V
2.6V
(2.6V)
0V
0V
(0V)
10.8V 
10.9V 
11.7V 
+B
+B
+B
+B
+B
+B
+B
RDS
CIRCUIT
10
12
13
14
11
1
2
3
4
5
8 
9 
6
7
RDS  CLK
RDS  DATA
VSM
SD
FM  ST
DO
CL
CE
DI
A_12V
D_GND
TUN_L
TUN_R
A_GND
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
OUT 
OUT 
MPX  VCO 
MPX  IN
MO/ST 
L-CH
R-CH
(AM/FM) 
PHASE 
PHASE 
IF  OUT
VCC 
FM  DET
STEREO
PASS
TER
11
10
9
8
IF IN
AM IN
FM IN
VDD
17 16 15
14 13 12
CNP307
P28  4,5-A
TO
MAIN PWB-A1(1/2)
TUNER PWB-A2
FM
MUTE
MO/ST 
IF REQ
17
16
15
14
13
12
11
10
9
8
7
456kHz
456kHz
2
3
1
354
R528
1K
R529
1K
CNS307
R366
2.2K
C372
1/50
C371
1/50
C398
100/10
C527
0.1
C525
22P(CH)
C526
22P(CH)
X521
IC521
LC72723M
C524
560P
D521
1N4148
D308
1N4148
R521
47K
C537
0.022
C523
0.1
C522
330P
C391
47/16
X351
R361
5.6K
C368
1/50
R356
1K
R357
470K
R362
5.6K
C369
56P 
C374
0.018
C373
0.018
R353
270 
C354
0.022
CF351 
0.022
C385
0.01
R377
5.6K
R355
3.3K
C357
2.2/50
C358
1/50
C399
0.022 
C356
0.001
R393
1K
R395
47K
L351
100
µ
H
C370
1/50
C355
22P
C383
0.022
R387
5.6K
L352
100
µ
H
C395
0.022
C396
100/10
ZD351
DZ5.1BSB 
R391
390
R392
390
Q351
KRC104 M 
R363
6.8K
R364
6.8K
C386
330P
R365
10K
R359
1.8K
R360
4.7K
Q360
KTA1266 GR
R385
5.6K
R384
6.8K
R383
5.6K
R376
10K
C535
47/16
C536
0.022
L521
2.2
µ
H
R532
10K
Q521
KTC3199 GR
C521
10/16
R534
56K
R533
56K
Figure 33 SCHEMATIC DIAGRAM (6/8)
XL-3000H
– 34 –
A
B
C
D
E
F
G
H
1
2
3
4
5
6
+B
+B
+B
+B
+B
+B
+B
1.1V
0V
0V
0.1V
0.1V
4.1V
4.5V
0.4V
0.4V
+B
+B
+B
+B
+B
2.47V
2.47V
2.47V
2.47V
0V
0V
0V
0V
0V
0V
0V
4.9V
0V
0V
0V
0V
0V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
5V
4.9V
4.9V
4.9V
4.9V
4.9V
1.7V
3.25V
5V
5V
5V
5V
5V
5V
2.49V
2.47V
2.24V
2.47V
0V
0V
4.8V
5V
0.4V
0.4V
24.5V
24.5V
23.7V
4.2V
5V
5V
24V
5V
GND 
3
2
1
3
2
1
FUNCTION
MEMORY/SET
REW 
PRESET  DOWN 
CD STOP 
TUNING  DOWN 
BASS/TREBLE
FF
PRESET  UP
CD  PLAY/ PAUSE
TUNING  UP 
VOLUME  DOWN
VOLUME  UP
ON/
STAND-BY 
CD LID
OPEN/CLOSE
CLID_PRO
VDD 
VLC1
VLC2
VLC3
COM0
COM1
COM2
COM3
OSC1
MMOD
VREF+ 
OSC2
CLID_SW 
DI
KEY1
MODEL 
KEY2
VREF
XO
XI
VSS 
VSM 
25
24 
23
22
21 
20
19 
18 
17 
16 
15 
14 
13 
12 
11 
10 
9 
8 
7 
6 
5 
4 
3 
2 
1 
SEG0
SEG1
SEG2
SEG3
SEG4
SEG5
SEG6
SEG7
SEG8
SEG9
100
99 98 97 96 95 94 93 92 9
RESET 
CL
DO
CE
3
34
33
32
31
30
29
28
27
26
P_CONT
3 
2 
1 
3 
2 
1 
5V
5V
1
13
12
11
10
9
8
7
6
5
4
3
2
1
3 
2 
1 
LAMP PWB-A7
3
2
1
3
2
1
3
2
1
REMOTE
SENSOR
USWD_5R6V
D_GND
CNP707
P28  1-F,G
TO
POWER PWB-B
SYSTE
32.768kHz
8MHz
C705
0.01
R718
1.5K
R7A3
100 
LMP701
L702
10
µ
H 
L701
10
µ
H 
X701
R799
1K
R720B
1.2K 
R719
1.2K
R710
2.7K
R796
1K
CFW701A
R797
2.2K
R798
4.7K
Q709
KRC102 M 
Q708
KTA1266 GR 
R729
47K 
R732 1K
R731 1K
R733 1K
R734 1K
R721
10K 
SW721
R725 10K 
SW725
R708
2.2K
R707
2.7K
R778 47K 
R779
47K 
R780 47K 
R7A6
1K
R7A9
3.3K
CNW707
CNS707
D721
1N4148
R7A7
1K
R740 1K
R739 1K
R7A0
1K
Q702
KTC3199 GR 
C715 100/10
R7A8
82
C714
560P
C713 10/16 
R7B0
10K 
C712 0.01
ZD701 
DZ3.3BSB
R7A1
1K
R7A4
120 
R7A5
10K 
R738 1K
C702 22P
(CH)
R706
3.9K
Q703
KTC3199 GR 
R744 1K
R727
47K 
SW709 
SW727
R702
10K
R728 1K
C701
22P(CH)
RX701 
Q701
KRC102 M 
R711
1.2K
C703
0.1 
SW711 
R722 10K 
R724
12K 
SW726
SW722 
X702
R735
1K
Q706
KRC102 M 
R793
10K 
R792
47K 
Q707
KTA1266 GR 
R723 47K 
R7A2 100K
C711 3.3/50
D722
1N4148
D723
1N4148
SW713
SW712 
R720A
1.2K 
SW718
D720
1N4148
C710 0.01
R782 1K
R781
47K 
R783
33K 
C704
0.022 
SW710 
R795
47K
R741 1K
CFW701B
• NOTES ON SCHEMATIC DIAGRAM can be found on page 23.
Figure 34 SCHEMATIC DIAGRAM (7/8)
– 35 –
XL-3000H
7
8
9
10
11
12
+B
+B
+B
+B
+B
+B
0V
0V
0V
0V
4.8V
4.8V
4.76V
4.72V
0V
0V
4.9V
4.9V
4.9V
4.9V
5V
5V
5V
5V
5V
4.9V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
2
.5V
2.5V
5V
5V
5V
5V
4.9V
4.9V
4.9V
4.9V
4.9V
4.9V
4.8V
4.8V
4.8V
4.8V
4.8V
SEG6
SEG7
SEG8
SEG9
SEG10
SEG11
SEG12
SEG13
SEG14
SEG15
SEG16
SEG17
SEG18
SEG19
SEG20
SEG21
SEG22
SEG23 
SEG24 
94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76
LIGHT 
DIMMER
SEG25
SEG26
SEG27
SEG28
SEG29
SEG30
SEG31
SEG32
SEG33
CLID_UP
CLID_DW
PU–IN
CD_RES
CD_STB
BUS1
BUS0
BUS2
BUS3
BUCK
CCE
CLID_DW 
CD_RES
CLID_UP 
CD_STB
PU-IN 
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
B-LIGHT 
RESET 
REMOCON 
SYS_STOP
POWER 
CLE 
SURR
P–STB 
P–MUTE
CD+B
P–CONT
DATA
STEREO
SD
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
VSM 
DATA
CLE 
SURROUND
STEREO
SD
P_CONT
P_STB 
P_MUTE
CLID_SW 
CD+B
B-LIGHT 
DO
CL
DI
CLID_PRO
CE
D_GND 
A_24V 
SURROUND
5V
VSM 
DATA
CLE 
P_STB 
P_MUTE
CD+B
DI
CE
CL
DO
STEREO
SD
13
12
11
10
9
8
7
6
5
4
3
2
1
3 
2 
1 
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
LIGHT 
BUS0
BUS1
BUS2
BUS3
BUCK
CCE
CD_STB
CLID_DW
CLID_UP
CLID_PRO
CLID_SW
CD_RES
PU-IN 
DIMMER 
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
DISPLAY PWB-A3
CNP703
P28,29  6,7-A
CNP702
P30  1-B,C
TO
MAIN PWB-A1(1/2)
TO
MAIN PWB-A1(2/2)
FL DISPLAY
SYSTEM MICROCOMPUTER/
FL DRIVER
C705
0.01
R786
47K 
R789
47K 
R772 1K
R785
1K
R773 1K
R749 1K
R766 1K
R755 1K
R750 1K
R751 1K
R758 1K
R742 1K
R774 1K
R763 1K
R762 1K
R757 1K
R769 1K
R768 1K
R770 1K
R744
 1K
R760 1K
R759 1K
R777 1K
R752 1K
R776 1K
R767 1K
R764 1K
R765 1K
R761 1K
R784
47K 
LCD701
IC701
IX0037SJ 
CNS702
CNW702
CNW703B
CNW703A
CNS703
Figure 35 SCHEMATIC DIAGRAM (8/8)
Page of 8
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