Read Sharp XL-DV50 (serv.man2) Service Manual online
XL-DV50H
6 – 4
Figure 6-4 SCHEMATIC DIAGRAM (3/13)
A
B
C
D
E
F
G
H
1
2
3
4
5
6
5.1V
4.8V
0.1V
0.1V
2.6V
0V
3.7V
(11.4V)
1.7V
(0V)
3.5V
(0V)
2.6V
2.5V
9.5V
0.8V
0.9V
0.9V
5.2V
(0V)
2.6V
(2.6V)
0V
0V
29
V
5V
5V
0V
5V
2.1V
2.1V
2.1V
5V
2.5V
2.1V
0.6V
2.1V
(2.7V)
(2.7V)
2.3V
0V
(0.9V)
23
V
3.9V
0.01
1K
10/16
10/16
10/16
10/16
1.2K
5.6K
22K
22K
220P
5.6K
2.2µH
0.0027
1N4148
1N4148
1N4148
1N4148
1N4148
1N4148
3.9K
0.1(ML)
LC75341M
SIGNAL CONTROL
100K
10K
10/16
120
10K
10/16
1/16
100K
1
3.9K
1K
1K
100K
1.8K
100/16
33/16
10/16
0.1(ML)
1K
1K
220P
10/16
10/16
0.1(ML)
10/16
1K
10/16
1K
0.1(ML)
10/16
1K
1K
22K
2.2K
22K
2.2K
0.022
33P
47/16
0.022
0.022
10/16
1K
0.022
0.022
0.022
0.022
10/16
0.022
8.2K
33P
10K
TP301
1/50 1.5K
2.2K
0.001
0.022
0.01
5.6K
1K
100µH
2.2µH
330P
10K
1K
1K
1K
1K
1.8K
4.7K
3.3/50
0.022
1/50
0
330P
4.5MHz
270
0.001
LC72131
FM ANT.
FM
IF
FM
IF
FM IF
AM IF
0.022
10/16
1mH
5.6K
5.6K
0.012
CHASSIS
GND
0.001
0.047
456KHz
15P
12P
(CH)
(CH)
330
330
330
33
180
680
0.022
0.022
0.022
100/16
680
82
68
4.7K
6.8K
100K
1/16
1K
1K
47/16
0.1
0.1(ML)
1K
LC75341M
SIGNAL CONTROL
47/16
1K
1K
0.1(ML)
0.0027
1K
10/16
10/16
0.1
3.9K
22K
220P
10/16
100/16
33/16
220P
22K
3.9K
10/16
0.0027
2
1
220P
220P
+7V
RTRE
DVD/CD SUB
DI
TUNER PWB-A2
LSL0
L4
DI
LIN
LTRE
LOUT
VSS
CE
TUN L
TUN R
LBS
AUX L
AUX R
ROUT
RIN
VDD
RBS
CL
RSL0
R4
R3
R1
R2
VREF
L1
L3
L2
CL
CE WOOF
A_GND
AUX
R
AUX
L
DI
CE
CE
L-CH
R-CH
VIDEO/AUX
AUDIO IN
AUDIO IN
CL
ROUT
VDD
RBS
RTRE
RIN
RSL0
R4
R3
R2
VREF
L1
L2
R1
L3
L4
LSL0
LIN
LTRE
LOUT
VSS
DI
CE
+B
+B
+B
+B
+B
+B
LBS
AUX L
AUX R
CL
AUX_R
AUX_L
A_GND
GND
AM
AM LOOP
ANTENNA
FM
ANTENNA
TERMINAL
FM FRONT END
PD
VT
FM
FM
MUTE
VSM
AM
RF
FM
DET
STEREO
SD
GND
AM
IF
REG
AM
MIX
OUT
OUT
OUT
IN
IN
IN
IN
CUT
AM
LOW
FM/AM
FM
IF
FM
AFC
AM
OSC
AM
OSC
CE
DI
CL
DO
MO/ST
IF
REQ
IF
IN
AM
IN
FM
IN
VDD
AIN
AOUT
VSS
XO
U
T
XI
N
12
11
10
9
8
7
6
5
4
3
2
1
24 23 22 21 20 19 18 17 16 15
14 13
13
14
15
16
17
18
19
20
21
22
23
24
1
2
3
4
5
6
7
8
9
10 11 12
18
19
20
21
22
23
24
1
3
2
4
5
6
7
8
1
1
3
3
12
13
15
16
17
18
19
20
21
22
3
4
2
1
5
6
7
8
9
10
11
14
2
2
FM
MUTE
LEVEL
PLL(TUNER)
SVC348S
0.022
0.001
0.047
0.022
68K
0.022
560P
27P
12P(CH)
+B
(UJ)
MW OSC
MW ANT
AM BAND
COVERAGE fL
AM TRACKING fL
2SC380
O
1
3
2
1
2
3
4
5
6
7
8
LOW PASS
FILTER
FILTER
CNP301
SO301
C376
C349
C388
C301
X352
R374
R373
R372
C382
C381
IC302
R371
R359
R360
R365
C394
C397
C341
R381
C393 R380
R379
C392
C387
C385
C380
R386
R382
R346
R349
R343
R344
C347
C345
C346
C348
R348
R369B
R369A
R345
R347
C386
R377
R393
L351
L342
C353
C354
CF351
R353
R352
C350
T351
CF352
C344
C352
C378
C351
CF302
C367
R350
X351
R667
R612
R623
C624
R630
R643
R644
R641
R665
R645
L601
R691
C634
D604
D605
D301
D302
D303
D304
SO601
R683
C669
C671
C696
C695
C681
R692
R694
C667
C693
C694
R679
R685
C663
C661
R642
C625
R622
R603
R602
R602
R601
R60
R629
R607
C610
C608
C616
C614
C612
C623
R613
R666
C617
C618
R640
R634
C619
C621
R617
R696
IC603
C604
C664
C666
R680
R678
R686
C662
R677
C670
R676
C676
R648
C674
C678
R675
C682
C683
R631
C620
R646
R606
R628
C615
C622
C613
C609
C607
C611
R60
IC601
L341
FE301
R351
R336
C363
R358
C343
C362
C360
VR351
L353
C361
C364
C365
C366
C668
VD301
T302
C329
C302
C331
C332
R323
C335
C330
C334
T306
C337
Q301
CF301
L354
NOTES ON SCHEMATIC DIAGRAM can be found on page 6-1
FM SIGNAL
AM SIGNAL
DVD/CD AUDIO SIGNAL
AUX SIGNAL
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