Read Sharp XL-55 (serv.man15) Service Manual online
– 27 –
XL-55H/65H
7
8
9
10
11
12
9.6V
5V
4
.8V
0V
0V
0V
13
12
11
10
9
8
7
6
5
4
3
2
1
3 2 1
28 29 30
5
5
1 1
CL
VDD
VREF
VSS
CE
DI
AIN PWB-A1(3/3)
SPEAKER BOX
SPEAKER BOX
HEADPHONES PWB-A4
TWEETER
TWEETER
WOOFER
WOOFER
SPEAKER
TERMINAL
4 Ohm
+
+
–
–
4 Ohm
R-CH
R-CH
L-CH
L-CH
10
9
5
4
3
2
1
HEADPONES
CHASSIS
GND
LCH_OUT
LCH_OUT
LCH_GND
LCH_GND
RCH_GND
RCH_GND
RCH_OUT
RCH_OUT
P_MUTE
P_STB
RCH_IN
A_GND
LCH_IN
TRANSFORMER
(SUB)
POWER
LINE
FILTER
POWER PWB-B1
TO TAPE
MECHANISM
CHASSIS
TO
MAIN
CHASSIS
AC 230V,50Hz
AC POWER SUPPLY CORD
P30 1 - F
CNS707
FROM DISPLAY PWB
P31 12 - G
CNS680
FROM DISPLAY PWB
AC INPUT
SOCKET
SOCKET
AC230V, 50Hz
TF
POWER
TRANSFORMER
(MAIN)
RELAY
LCH_OUT
LCH_OUT
LCH_GND
LCH_GND
RCH_GND
RCH_GND
RCH_OUT
RCH_OUT
P_MUTE
P_STB
RCH_IN
A_GND
LCH_IN
PROTECT
12V
2
1
2
B1GND
+B1
+B
+B
2
1
2
1
1
1
2
3
3
6
5
4
3
2
1
12
7
14
13
11
10
9
8
POWER AMP. PWB-B2
13
12
11
10
9
8
7
6
5
4
3
2
1
3
2
1
USWD_ 5R6V
P_CONT
D_GND
2
1
2
1
120V
0V
1
2
2
1
+B1
B1GND
3
2
1
When Servicing,
Pay attention as the area enclosed
by this line ( ) is directly
connected with AC main voltage.
1N4004
100/16
1N4004
1N4004
180P
10
µ
H
330
330
120
120
820P
820P
0.0022
6
.8
0.0022
VOLTAGE REGULATOR
330P
1N4148
33/16
6.8K
10K
10K
4.7K
1K
33/16
KRA107 M
1N4148
100/25
2HC1815 GR
680K
680K
KRC107 M
270
270
3.3
0.22(ML)
0.22(ML)
0.22(ML)
0.22(ML)
1000/35
1000/35
1N4004
1N4004
1N4004
1N4004
47/50
47/50
LA4451
POWER AMP.
82
82
220/25
220/25
1K
1/50
4.7/25
KTC3199 GR
KTC3199 GR
4.7K
100P
4.7/25
1K
220/50
2200/50
0.022
100P
0.001
0.47/50
1N4004
0.001
2200/16
10K
2HC1815 GR
KIA7805P
0.047
1N4004
0.047
1N4004
47K
1N4004
0.047
0.047
0.001
1N4004
T1.25A L 250V
1N5402M
1N5402M
1N5402M
1N5402M
0.1
0.1
0.1
0.1
0.1
0.1
T3.15A L 250V
1N4004
1N4004
3.3
0.0012
1N4004
1N4004
1N4004
1N4004
D403
C430
D401
D402
SO601
CFW601
CFW601A
C663
L603
R662
R661
J601
J920
J923
CNP604
C617
C618
C661
C662
CNP680
C652
Q605A
Q609A
D615
C670
Q603A
R617A
R618
CNP652
C648
C610
R613
C612
C644
C643
C611
R609
R614
C613
C614
R610
D612
C630
D611
D613
D614
IC601
C609
C615
C604
Q601
C601
C606
Q602
R616
R615
R604
R602
R603
C603
CNP651
C629
R607
C605
R601
C608
R606
R605
C607
C602
C647
D601
R608
C660
D653
C681
D651
CNW654
C654
SO651
C696
C689
D689
D684
D683
C695
CNW653
D682
C683
R685
D658
RLY681
D654
CNP707
T681
LF651
T651
D659
Q683
CNW651
CNS651
F652
D656
IC681
C665
D688
D685
C658
C688
D657
C657
C656
D681
C684
D652
C659
C651
CNP653
F651
R686
CNS604
Figure 27 SCHEMATIC DIAGRAM (8/12)
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