Read Sharp HT-CN300H (serv.man4) Service Manual online
HT-CN300H
– 14 –
A
B
C
D
E
F
G
H
1
2
3
4
5
6
• NOTES ON SCHEMATIC DIAGRAM can be found on page 9.
Figure 14 SCHEMATIC DIAGRAM (1/17)
FAN_CONT
PROTECT
POW_LEVEL
FL_PRIOUT
A_GND
FR_PRIOUT
SR_PRIOUT
A_GND
FR_PRIOUT
SR_PRIOUT
SL_PRIOUT
A_GND
CT_PRIOUT
SW_PRIOUT
A_GND
A_GND
F_RLY
S_RLY
C_RLY
W_RLY
-20DBATT
FAN_CONT
THERMO
PROTECT
POW_LEVEL
F_RLY
S_RLY
C_RLY
W_RLY
-20DBATT
FAN_CONT
THERMO
PROTECT
POW_LEVEL
E
B
C
E
B
C
E
B
C
E
B
C
GNDB
GNDA
MuteB
MuteA
VccB
VEE
VEE
8 +INA
7 -INA
7 -INA
13 +INB
12 -INB
11
MUTEB
6
MUTEA
1
OUTB
3
OUTA
2
VCCA
5
GNDA
10
GNDB
15
VCCB
4
VEE
14
NC1
9
NC2
GNDB
GNDA
MuteB
MuteA
VccB
VEE
VEE
8 +INA
7 -INA
13 +INB
12 -INB
11
MUTEB
6
MUTEA
1
OUTB
3
OUTA
2
VCCA
5
GNDA
10
GNDB
15
VCCB
4
VEE
14
NC1
9
NC2
GNDB
GNDA
MuteB
MuteA
VccB
VEE
VEE
8 +INA
7 -INA
13 +INB
12 -INB
11
MUTEB
6
MUTEA
1
OUTB
3
OUTA
2
VCCA
5
GNDA
10
GNDB
15
VCCB
4
VEE
14
NC1
9
NC2
22K THERMO
E
B
C
E
B
C
1
2
3
4
5
6
7
8
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
2
3
4
5
6
7
8
E
B
C
E
B
C
1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
19
CNP711
TO
DSP PWB
P23 12 - F
FM SIGNAL
AMP. PWB-B3 (1/2)
TERMINAL PWB-B5
IC203
LM4766T
POWER AMP.
R282 10K
C256
22/35
(N.P.)
(N.P.)
C265
22/35
(N.P.)
(N.P.)
C299
0.22
C295
0.22
C291
0.22
C292
0.22
C296
0.22
C195
390P
390P
C193
330P
330P
C192
330P
330P
C188
330P
330P
C190
330P
330P
C189
330P
330P
C186
330P
330P
C228
0.22
R262 1K
R274 1K
R275 270
R275 270
R276 22K
R264 22K
R263 220
IC202
LM4766T
POWER
AMP.
R238 1K
R251 220
R252 22K
R239 220
R291 10K
R240
22K
R249
22K
C234
22/35
(N.P.)
(N.P.)
C243
22/35
(N.P.)
(N.P.)
R237 22K
R250
1K
C236
0.22
R241
4.7
C245
0.22
R253
4.7
C206
0.22
C207
0.22
C212
22/35
(N.P.)
(N.P.)
C221
22/35
(N.P.)
(N.P.)
R214 1K
R226 1K
R227 220
R228 22K
R227 220
R228 22K
R216 22K
R215 220
IC201
LM4766T
POWER AMP.
R290 10K
R272
100
R271
2.2K
C263
0.001
R270
820
R260
100
Q250
2SC2878 B
R259
2.2K
C254
0.001
C196
820P
820P
R258
820
R261
22K
Q260
2SC2878 B
C255
1/50
(N.P.)
C264
1/50
(N.P.)
R140
10K
R141
10K
R273
22K
CNP203
BI204
R236
100
Q230
2SC2878 B
R235
2.2K
C232
0.001
R234
820
R248
100
Q240
2SC2878 B
R247
2.2K
C241
0.001
C233
1/50
(N.P.)
C242
1/50
(N.P.)
R142
10K
R143
10K
R246
820
CNS204
COR1
R224
100
Q220
2SC2878 B
R223
2.2K
C219
0.001
C198
0.0047
R222
820
R212
100
R211
2.2K
R210
820
R213
22K
R225
22K
Q210
2SC2878 B
C210
0.001
C211
1/50
C220
1/50
(N.P.)
R145
10K
R144
10K
C170
100/10
Q270
KTC3199 GR
Q271
KTC3199 GR
C272
47/50
R168
56K
D251 DS1SS133
D252 DS1SS133
D272 DS1SS133
CNP122
FW12
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