Sharp HT-DD5000W Service Manual page 15

HT-DD5000W
SOC201
FM ANT
BAND PASS
ANTENNA
FILTER
TERMINAL
FM FRONT END
1 BF201 3 1
2
3 4
AM LOOP ANT
FM RF
L201
AM RF
AM ANT
T201
J401
VCR1
VIDEO
INPUT
VCR1
VIDEO
OUTPUT
DVD
VIDEO
INPUT
MONITOR
OUTPUT
J404
VCR2
VIDEO
INPUT
L
VCR2
AUDIO
INPUT
R
J405
L
VCR1
INPUT
R
L OUT
VCR1
OUTPUT
R
Q505
Q506
SWITCHING
MUTE
L
DVD
INPUT
R
L
CD/AUX
INPUT
R
MUTE
J406
SWITCHING
Q507
L
Q508
MD/TAPE
INPUT
R
OUT
L
MD/TAPE
OUTPUT
R
L
PHONO
INPUT
R IN
IC201
9
TA7358AP
5 6 7 8
FM IF
FM OSC
L202
FM IF
T202
FM IF
AMP
FMOSC
Q201
AM OSC
T203
VIDEO SWITCH
IC403
NJM2279D
+7V
13 11 8
12
3
10
Vout1
1
5
Vout2
2 4 6
7 14
–7V
BUFFER AMP.
IC411
NJM4565M
+7V
8
1 3
7 5
IN
4
–7V
BUFFER AMP.
IC412
NJM4565M
+7V
8
1 IN
3
7 5
4
–7V
MOTOR DRIVE
IC404
NJM4558M
+7V
8
OUT
3 1
7
5
4
–7V
Figure 14 BLOCK DIAGRAM (4/5)
+B12V
IF AMP
FM IF
Q281 CF201 AM IF
T204 CF203
FM IF IN
1 2 3
OUT REQ
IC203
LA1833
VR201
FM MUTE LEVEL
FM/AM IF MPX.
AM OSC
24 23 22 21 7
STEREO
X352
4.5MHz
VT
A+12V
20 1
22 15 16 11
OSC
IC202
FM
Q203 LC72131
7
PLL (TUNER)
3 4 5
FRONT LEVEL
ADJUSTING
Q503 Q504
SUB-W
LS/RS
CENTER
FR
FL
LT/RT_CH
18 19
14 13 10
11
IC402
TC9273F
FUNCTION SWITCH
15 16 17
12
– 14 –
+B12V
FM IF
MUTING
Q202
4 5 8 9 17 18 19 16
AM IF GND FM VCC
15
DET
IF
OUT
6 10 11 12 13 14
L
R
MPX
VCO
CUT
VOLTAGE
REGURATER
A+12V
+B5V
+5V
12 17
10
9
6 21
IC401
M62446FP
6CH ELECTRONIC VOLUME
1 OUT4(NC) DVDD
Q501
2 OUT3(NC)
DATA
3
OUT2(NC)
LATCH
4
OUT1(NC)
D_GND
+7V 5
AVDD
A_GND
6 SWIN
SW_OUT
7 GNDS
RR_OUT
8 SRIN
RL_OUT
9 SLIN
GNDC C_OUT
10
11 C_IN R_OUT
L_OUT
12 GNDR
13 AVSS
R_IN
14 GND CL1(NC)
15 CL2(NC)
L_IN
CR1(NC)
16 BYPASSR(NC)
17 CR2(NC)
BYPASSL(NC)
RTRE(NC)
18 LTRE(NC)
19 LBYPASS3(NC) RBYPASS3(NC)
LBYPASS2(NC) RBYPASS2(NC)
20
RBYPASS1(NC)
21 LBYPASS1(NC)
22 23 24 25 26 27
1
7 6 5 4 3 2
+7V
1
7
OUT
–7V
OPE AMP.
IC405
21 28
8
NJM4580M
TO POWER SECTION
TUNER MUTE
AD RESET
SD
AC3-RES
AC3-SS
AC3-SI
D-SEL
AC3-SCK
SW-ON
DEM0
DEM1
AC3-SO
DE
DE
BUFFE
IC4
+B5V
NJM4
42
CLK 41
40
3
39
5
IN
38
37
36
35
34
33
BUFF
32
IC
31
NJM
30
29
28
3
27
5
IN
26
25
24
23
22
BUFF
IC
NJM
3
5
IN
8
3
5
IN
HEAD
4
A
IC
NJM
3
5
IN