Read Sharp HT-CN300H (serv.man8) Service Manual online
HT-CN300H
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A
B
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E
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Figure 24 SCHEMATIC DIAGRAM (11/17)
CNP302
A_GTUN
D_GTUN
D_GTUN
+12V
VF2
VF1
-VP
A_GND
-12V
UN_SW_5V
D_GND
D_GND
+12V
+3.3V
+3.3V
SW_5V
VF1
-VP
A_GND
-12V
UN_SW_5V
D_GND
D_GND
+12V
+3.3V
+3.3V
SW_5V
-5V
VIDEO_GND
SW_5V
VIDEO_GND
SW_5V
UN_SW_5V
ASSIST
UN_SW_GND
+12V
-12V
+B
+B
+B
+B
+B
+B
+B
+B
-B
+B
+B
+B
+B
+B
+B
–B
–B
+B
–B
+B
+B
-5V
M_12VA
VF2
VF1
+3.3V
SW_5V
TO
AMP. PWB
P15 12 - C
P15 12 - C
TO
TUNER PWB
P27 12 - F
TO
DSP PWB
P23 12 - B
SW_5V
-5V
IN
OUT
GND
E
B
C
1
2
3
4
5
6
7
8
9
2
3
4
5
6
7
8
9
10
11
12
11
12
1
2
3
4
5
6
2
3
4
5
6
1
2
3
2
3
+B
-B
PGND
M_12VA
PGND_A
FANB
AMP. PWB-B3 (2/2)
FANGND
CNP713
TO
VIDEO PWB
P28 1 - D
CNP431
1
2
4
6
5
7
8
2
3
D298
1N4004S
IC103
BA033T
VOLTAGE REGU
Q113
KTA1274 Y
Z113
DZ5.6BSB
R116
22K
C129
0.022
C127
47/10
R139 75(2W)
CNS103
BI103
CNS102
CNS104
BI102
BI104
• NOTES ON SCHEMATIC DIAGRAM can be found on page 9.
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