Sharp XL-70 Service Manual page 25

FM SIGNAL
AM SIGNAL
PLAYBACK SIGNAL
RECORD SIGNAL
CD SIGNAL
CNS704
SD
9
STEREO
8
7
6
5
4
+B
3
2
1
0
1266 GR
10.8V
9V
85
K
+B
+B
EC L
EC R
PE R
TAPE L
R113
3.3K
+B
+B
CD TEST POINT
+B
+B
+B
4 6 8 10 11 1
5 7 9
3
D
Y PWB
FROM CD SERVO PWB
7
C340
0.001
SD
R408
1.5K
FM ST
R-CH
R406
FROM
DO
27K
DISPLAY VIDEO/
CL
PWB AUX
R405
SO401
27K
CE
CNW704
L-CH
R407
DI
P27 12-F R410
1.5K
1K
SUB
CD+B
WOOFER
P MUTE
P-STB
C413 C414
0.001
0.47/50
POWER AMP.PWB-B2
R601
1K
R615
4.7K
R603
10K
R604
1 1
10K
2 2
3 3
R602
4 4
4.7K
5 5
R-CH
6 6
7 7
8 8
C602
9 9 1/50
10 10
A_GND
11 11
12 12
L-CH
13 13
Q607
Q606
2SD2012 Y
KTC3199 GR
6.2V
+B 20V
D604
7.8V
1N4148 1
7.5V
2
Q608
KRA102 M
+B 11.7V
Q605
2SD2012 Y
Q683~Q685
VOLTAGE
REGULATOR
Q604
2SD2012 Y
11.7V
20V
12.3V
R620
47
ZD601
MTZJ13A
2 3 4 5 6
7
CNP605
CNS605
P29 12-C
8
Figure 25 SCHEMATIC DIAGRAM (2/6)
AUX R
C408
10/16
C406
R422
10/16
1K
C412
330P
C404 R436
10/16 10K
C411
330P
C402 R416
C407
10/16 1K
10/16
15 14 13 12 11 10
R411
IC401 LC75342M
1K
16 17 18 19 20
R415
C401
1K
10/16
CD L
TUN L
C403
10/16
TAPE L
C405 R421
10/16 1K
R423
R424 1K
1K
R425
1K
+B
IC601
C647
330P
POWER AMP.
C605
LA4451 C609
4.7/25
47/50
IC601
13
2
LA4451
0V
16.0V
1.2V
14 1
C607
28.0V
220/25
R605
82 3
11
R606 0V
0V
82
C608 4
220/25
28.0V
8
1.2V
6
30.0V
10
C629
220/50
9 5
C606 VCC
16.0V
0V
C648
4.7/25
12 7 31.5V
0.0012
3.3V
STAND-BY
R608
1K
D601 C615
C616
1N4148 0.022
2200/50
CNP651
CNS651
BI651
+B
+B
Q686~Q689
VOLTAGE
REGULATOR
R624
1K
Q609
KRC107 M
0V
3
3
1
2 1 1
GND1
2 2
0V 1 2
20V +B
FROM
DISPLAY
PWB
3
R619
CN707 2
47
P26 1-F 1
GND2
+B
Q603
KTC3199 GR
20V
13V R628
100
TO MAIN
CHASSIS
CNP653
9 10
– 25 –
IC401
FUNCTION/VOLUME EQUALIZER
LC75342M
9 4
8 7 6 5 3 2 1
21 24 26 28
22 23 25 27 29 30
C425
10/16
R435
10K
R439
3.9K
CL
DI
D402
1N4004
CE
D401
1N4004
R413
27K
C613
1000/35
C614
1000/35
1 2
1 2
1 2
POWER PWB-B1
D652
D651
C651
0.1
31.5V
D657
C657
C654
R651 0.1
0.1
680(3W)
D654
D653
C658
D651~5654:1N5402M
0.1
D656~D659:1N4004
D658
+B2
B2 GND
Q681
Q681~Q683:
2SD468 C
Q682
VOLTAGE
2SD468 C
5.8V
REGULATOR 9.0V
Q683 9.0V
KTC3199 GR 4.9V
R685
0.8V
10K
(0V)
R686
47K
ZD682 ZD681
MTZJ5.6B MTZJ6.8A
D681~D684:1N4004
D682
D681
D684
D683
T681
SUB POWER
TRANSFORMER
NC
2 1
(229)
2 1
TO TAPE MECHANISM
NC
CHASSIS
11
XL-70/70C
SP603
TWEETER
L-CH
SP601
WOOFER
+
4 Ohm
SPEAKERS
SP602
WOOFER
+
4 Ohm
R-CH
SP604
TWEETER
HEADPHONES PWB-A5
R662
330
R661
330
5
5
J601
HEADPHONES
1
1
T651
MAIN POWER
F651 TRANSFORMER
4A 125V
F652
1.6A 125V
D656
C656
0.1
C659
0.1 T.F
D659
R652
4.7M
D685
1N4004
RLY601
SO651
AC POWER
INPUT SOCKET
AC120V,60Hz
12