Read Sharp XL-70 (serv.man8) Service Manual online
– 27 –
XL-60H/70H
Figure 27 SCHEMATIC DIAGRAM (2/6)
7
8
9
10
11
12
R634
3.3K
L601
0.3mH
0.3mH
R631
6.8
C633
0.022
Q609
KRC107 M
KRC107 M
C693
330P
R435
10K
R436
10K
CNP652
2
1
R528
1K
1K
R529
1K
1K
C527
0.1
0.1
C525
22P(CH)
22P(CH)
C526
22P(CH)
22P(CH)
X521
456kHz
456kHz
IC521 LC72723M
16 15 14 13 12 11 10
9
8
7
6
5
4
3
2
1
C524
560P
560P
D521
1N4148
1N4148
R521
47K
C537
0.022
0.022
C523 0.1
C522 330P
C694
330P
D401
1N4004
1N4004
D402
1N4004
1N4004
CNP703
12
11
10
9
8
7
6
5
R113
3.3K
3.3K
CNS704
12
11
10
9
8
7
6
5
8
7
6
5
4
3
2
1
3
2
1
GND2
GND3
CNP605
7
6
5
4
3
2
1
91
/16
R425
1K
1K
R424
1K
1K
R423
1K
1K
R440
3.9K
C424
0.1(ML)
C422
0.1(ML)
C426
10/16
C420
0.0027
C418
2.2/50
R438
6.8K
C416
10/16
C429
33/16
R437
6.8K
R439
3.9K
3.9K
D403
1N4004
C430
100/16
C425
10/16
10/16
C423
0.1
C421
0.1(ML)
C419
0.0027
C417
2.2/50
IC401 LC75342M
30
29
28
27
26
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
1
R416
1K
1K
R415
1K
1K
266 GR
85
K
C662
820P
820P
C661
820P
820P
C663
820P
L603
10
µ
H
J601
HEADPHONES
HEADPHONES
R662
330
330
R661
330
330
CFW601
5
1
C640
470P
C639
470P
C632
0.022
C636
0.022
0.022
R633
10
L602
0.3mH
0.3mH
C637
00.22
SO601
SPEAKER
TERMINALS
+
R632
6.8
C618
0.0022
C617
0.0022
C535
47/16
47/16
C536
0.022
0.022
L521
2.2mH
2.2mH
R532
10K
10K
Q521
KTC3199 GR
C521
10/16
10/16
R533
56K
56K
R534
56K
56K
C402
10/16
10/16
C404
10/16
10/16
C406
10/16
10/16
C405
10/16
C403
10/16
C401
10/16
10/16
Q608
KRA102 M
KRA102 M
R625
10K
Q606
KTC3199 GR
KTC3199 GR
D604
1N4148
1N4148
C627
0.022
Q607
2SD2012 Y
2SD2012 Y
C626
47/16
ZD602
MTZJ7.5C
R624
1K
1K
R623
22K
C624
0.022
C625
10/16
R629
820
C620
470/25
ZD601
MTZJ13A
MTZJ13A
C622
0.022
Q603
KTC3199 GR
KTC3199 GR
R620
47
47
R619
47
47
R628
100
100
C621
100/25
D602
1N4148
R617
33K
R621
22K
Q605
2SD2012 Y
2SD2012 Y
NC
NC
NC
STEREO
SD
DI
CE
D_GND
A_12V
M_12V
U_CON5V
SOL
MOT
REC
M_GND
CD+B
M_12V
CD_6.2V
D_GND
CL
DO
P_STB
P_MUTE
VSM
DATA
CLE
A_GND
CD_L
CD_R
13V
20V
12.3V
11.7V
20V
11.7V
4.5V
0V
0V
7.8V
7.5V
20V
6.2V
9.6V
0V
0V
0V
0V
4.8V
4.8V
4.8V
4.8V
4.8V
4.8V
4.8V
4.8V
4.8V
4.8V
4.8V
4.8V
4.8V
4.8V
4.8V
4.8V
4.8V
1.3V
1.3V
0.6V
2.3V
0V
0V
0V
0V
0V
5.1V
5.1V
2.5V
2.5V
2.5V
2.5V
2.5V
2V
2.5V
5.1V
V
0.8V
CD TEST POINT
FROM
DISPLAY
PWB
DISPLAY
PWB
WB
CL
VDD
VREF
ROUT
RBS2
RBS1
RTRE
RIN
RSL0
R4
R3
R2
R1
L1
L2
L3
L4
LSL0
LIN
LTRE
LBS1
LBS2
LOUT
TEST
VSS
CE
DI
CE
DI
CL
FROM CD SERVO PWB
RDS DATA
RDS CLK
VSM
TAPE R
TAPE L
REC R
REC L
TAPE R
TUN R
CD R
TAPE L
TUN L
CD L
10
9
5
4
3
2
1
SP604
SP603
SP602
WOOFER
WOOFER
SP601
WOOFER
WOOFER
TWEETER
TWEETER
4 Ohm
4 Ohm
P MUTE
P-STB
CD+B
FM ST
SD
DI
CE
DO
CL
R-CH
L-CH
5V
4.8V
4.8V
R418
1K
1K
R420
1K
1K
R417
1K
1K
R419
1K
1K
C415
10/16
SPEAKERS
5
R627
10K
1
2
3
1
2
3
GND1
20V
Q604
2SD2012 Y
2SD2012 Y
D603
1N4148
When servicing,pay attention as the area
enclosed by this line ( ) is directly
connected with AC
main voltage.
enclosed by this line ( ) is directly
connected with AC
main voltage.
RDS CIRCUIT
IC401
FUNCTION/
VOLUME
EQUALIZER
LC75342M
FUNCTION/
VOLUME
EQUALIZER
LC75342M
CNS605
P31 12-C
CNW704
P29 12-F
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+
+B
+B
+B
Q686~Q689
VOLTAGE
REGULATOR
VOLTAGE
REGULATOR
Q683~Q685
VOLTAGE
REGULATOR
VOLTAGE
REGULATOR
+B
AMP.
SO401
VIDEO/
AUX
VIDEO/
AUX
R-CH
L-CH
R406
27K
R405
27K
R408
1.5K
R407
1.5K
C412
330P
330P
C411
330P
330P
C408
10/16
10/16
C407
10/16
10/16
AUX L
AUX R
R422
1K
1K
R421
1K
1K
C340
0,001
0,001
R207
47K
47K
D201
1N4148
1N4148
Q203
KRC107 M
KRC107 M
Q207
2SK246 GR
R206
10K
10K
C212
0.0033
0.0033
R212
2.7K
2.7K
R214
12K
12K
C214
4.7/50
4.7/50
R216
1.2K
1.2K
R204
100K
100K
C202
0.0056
0.0056
R202
8.2K
8.2K
C216
1/50
1/50
R218
1.2K
1.2K
R208
330
330
C208
100/16
R209
10K
10K
R210
10K
10K
C215
1/50
1/50
R217
12K
12K
R215
12K
12K
R213
12K
12K
R211
2.7K
2.7K
R205
10K
10K
C213
4.7/50
4.7/50
C203
1/50
1/50
C211
0.0033
0.0033
R201
8.2K
8.2K
C209
47/16
47/16
C204
1/50
1/50
IC201
KIA4558P
KIA4558P
2
1
8
7
6
5
4
3
D
G
S
2
1
3
(4.4V)
0V
10V
(0V)
(0V)
3
5.0V
5.0V
5.0V
5.0V
5.0V
5.0V
5.0V
10.0V
L IN
L OUT
A12V
( )SURROUND OFF
R IN
R OUT
SURROUND
13
2
14
1
11
8
10
9
12
7
3
4
6
5
1
2
3
4
5
6
7
8
9
2
3
4
5
6
7
8
9
10
11
12
13
1
2
3
4
5
6
7
8
9
2
3
4
5
6
7
8
9
10
11
12
13
C647
330P
330P
C609
47/50
47/50
C613
1000/35
IC601
LA4451
VCC
STAND-BY
C615
0.022
0.022
C616
2200/50
C614
1000/35
C610
47/50
D614
1N4004
D612
1N4004
C644
0.022
(ML)
R614
270(1/2W)
R613
270(1/2W)
C611
0.22(ML)
R609
3.3
D611
1N4004
D613
1N4004
C643
0.22(ML)
R610
3.3
C612
0.22(ML)
R601
1K
C605
4.7/25
C607
220/25
R615
4.7K
C601
33/16
R603
10K
R607
6.8K
R604
10K
R616
4.7K
Q602
KTC3199 GR
C603
100P
R605
82
R606
82
C608
220/25
C604
100P
C629
220/50
C606
4.7/25
C648
0.0012
R608
1K
D601
1N4148
R-CH
L-CH
A_GND
C602
1/50
R602
4.7K
Q601
KTC3199 GR
CNS604
POWER AMP.PWB-B2
0V
0V
1.2V
1.2V
30.0V
0V
3.3V
31.5V
16.0V
28.0V
28.0V
16.0V
IC601
POWER AMP.
POWER AMP.
LA4451
CNP651
0V
CNP604
2
1
J923
120
J920
120
C630
4700/25
D652
D653
D654
D651
C651
0.1
0.1
C654
0.1
0.1
C657
0.1
0.1
D657
D656
F652
T1.25A L 250V
C656
0.1
0.1
D659
C659
0.1
0.1
C658
0.1
0.1
D658
F651
T3.15A L 250V
T651
MAIN POWER TRANSFORMER
31.5V
BI651
CNS651
D651~5654:1N5402M
D656~D659:1N4004
D656~D659:1N4004
R684
1.2K
C689
47/16
R686
47K
47K
Q683
KTC3199 GR
R685
10K
10K
3
2
2
1
CNP707
2
1
2
1
BI652
CNS652
T681
SUB POWER
TRANSFORMER
SUB POWER
TRANSFORMER
D684
D681
D683
D682
C695
0.001
Q682
2SD468 C
R683
47
ZD682
MTZJ5.6B
RLY601
D685
1N4004
1N4004
T.F
0V
0.8V
(0V)
(0V)
D681~D684:1N4004
9.0V
0.2V
(5.2V)
Q681~Q683:
VOLTAGE
REGULATOR
VOLTAGE
REGULATOR
5.6V
C660
0.001
C696
0.001
1
2
CNP653
C683
2200/16
4.9V
C688
0.022
C686
0.022
ZD681
MTZJ6.8A
R681
47
Q681
2SD468 C
6.4V
5.8V
9.0V
C685
47/16
R682
1.2K
C684
0.047
LF651
LINE
FILTER
LINE
FILTER
POWER PWB-B1
SO651
AC POWER
INPUT SOCKET
AC230V,50Hz
CN707
FROM
DISPLAY
PWB
DISPLAY
PWB
P28 1-F
HEADPHONES PWB-A5
2
1
2
1
R651
680(3W)
680(3W)
1
2
NC
NC
(229)
TO TAPE MECHANISM
CHASSIS
IC201
KIA4558P
SURROUND
CONTROL
KIA4558P
SURROUND
CONTROL
TO MAIN
CHASSIS
CHASSIS
R203
100K
100K
C211
0.0056
0.0056
+B2
B2 GND
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