Read Sharp HT-CN300H (serv.man4) Service Manual online
HT-CN300H
– 10 –
Figure 10 BLOCK DIAGRAM (1/4)
Q416
8
+B4
IC405
NJM2279D
VIDEO
SWITCH
14
- B 2
IC402
NJM2279D
VIDEO
SWITCH
14
8
+B4
+B4
30
10
8
6
7
2
5
4
3
1
1
23
2
4
5
9
8
17 13
21
7
18
16
12
14 15
CF302
CF303
CF303
CF303
20
1
22
15
16
11
3
4
5
6
7
9
10
21
17
+B3
- B 2
- B 3
+B4
+B5
+B6
+B7
J420
TV
MONITOR
OUT
J430
DVD IN
VTR2 IN
VTR1 IN
VTR1 OUT
VIDEO
VIDEO
VIDEO
VTR2 IN
VTR1 IN
VTR1 OUT
VIDEO/AUX IN
AUDIO
AUDIO
AUDIO
AUDIO
J550
5
10
3
12
IC404
TK15406M
IC404
TK15406M
VIDEO DRIVER
MUTE
- B 2
12
1
3
5
IC401
LC74763
OSD IC
18
16
CV OUT
CV IN
OSD CS
DATA
CLK
8
9
10
5
6
X440
17.734475 MHz
T302
T306
FE301
IC303
LA1832S
FM IF DET ./FM MPX./AM IF
AM OSC IN
AM RF IN
AM IF
GND
FM+B
FM DET
VCO
MO/ST
IC302
LC72131
PLL(TUNER)
LC72131
PLL(TUNER)
OSC
FM/AM
MO/ST
+B3
+B3
FM FRONT END
DSP SECTION
VCC
AM TRACKING
AM BAND
COVERAGE
VT
X352
4.5 MHz
SWITCHING
FM
STEREO
CE0
DATA
CLK
DO
FM/AM
OUT
MPX IN
FM/AM
R L
X351
456 k Hz
10.7 MHz
450 kHz
AM MIX
MAIN L/R
SURROUND
L
/R
CENTER/SUBWOOFER
TUNER L/R
VTR2 IN
VTR1 IN
VTR1 OUT
VTR1 IN
VTR1 OUT
VIDEO/AUX IN
Q360
AM LOOP
ANTENNA
CNP301
SO301
FM ANTENNA
TERMINAL
CF301
L354
LOW PASS LOW
ICT1
LC72723
RDS DECORDER
16
15
14
13
8
9
10
2
3
11
7
MPX IN
VDDA
X OUT
X IN
QT21
XT21
4.332 MHz
RST
RDDA
RDCL
RD-ID/
READY
VSSD
TEST
VDDD
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