Block Diagram - Sharp HT-DP2500W Service Manual

HT-DP2500W
BAND PASS
FILTER
IC201
FM
FM FRONT END
1
1 BF201 3
GND TA7358AP
2
AM
2
3 4 5 6 7
SOC201
ANTENNA
TERMINAL
L201
FM RF T202
FM IF
AM RF
AM ANTENNA
T201 T203
JK401
AUDIO
INPUT/OUTPUT
IC411
TERMINALS
NJM4565D
VCR1 OUTPUT AMP.
L-CH
VCR1
IN
R-CH
IC411
MUTE
AMP
VCR1 L-CH
L-CH
Q411 2
OUT
Q412 R-CH 6
R-CH
MUTING
A–12V A+12V
L-CH
VCR2
IN
R-CH
AUX L-CH
IN
R-CH
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IF AMP
FM IF
9 Q281
CF201
FM IF IN
8
FM IF
L202
FM OSC
VR201
FM MUTE LEVEL
AM
OSC
24
FM IF
AMP
FMOSC
Q201
AM OSC.
X202
4.5MHz
VT
1
20
A+12V
A OUT X IN
FM
Q203 7
BO 1
23 24 25
VCR1
L-CH 55 L1
R 57 R1
VCR2
L-CH 54 L2
58
R R2
TUNER
L-CH L4
L-CH 52
3 R4
60
R-CH
5
L-CH
AUX
53 L3
R-CH
R3
59
R-CH
FRONT
4 8
IN
48
LT IN RT IN
34
CLK
38
35
DATA
37
ENABLE LV1035M
36
DOLBY
18
A+12V
VCC
PRO LOGIC
8
7 DECORDER
VREF
21 GND
OSC
31 32
X451
8MHz
Figure 10 BLOCK DIAGRAM (1/2)
+B3 +B3
CF202
FM IF
AM IF
AM IF
T204 CF203
2 4 8 9
1 3 5 17 18
AM MIX REQ AM IF GND FM VCC FM
OUT OUT
IN DET
IC203 LA1833
AM FM IF DET./FM MPX./AM IF
OSC
7 6
23 22 21 10 11 12
MPX
VCO
CUT
STEREO
+B3
VOLTAGE
REGURATER
A+12V
+5V
22 15 16 11 12 17
X OUT IC202 VDD
OSC
LC72131
BO4 10
PLL CONTROLLER
9
FM
VSS
3 4 5 6
21
HEAVY
SOFT
A+12V
4 5
56 44 43
VDD
IC501 LC75396N
AUDIO PROCESSOR
GRAPHIC EQUALIZER
CENTER
REAR IN
VSS
RRIN
1
47 2 45 3
64 49 63 26 46
L R L R
L R
S-IN C-IN
X-BASS
L-IN R-IN
45 46
C-OUT
C-OUT 9
IC452
L-MIX OUT
24
L-OUT
23 R-MIX OUT
R-OUT
S-OUT 22
S-OUT
10 11 12 14 15 16
– 10 –
MUTING
Q202
TUNER
MUTE
1 2 3
19 16
AM MPX
15
OUT IN
VP
(AC)
L CH R CH
13 14
L-CH R-CH
SD
IC581
NJM4558D
HEADPHONE AMP.
A+12V
OUT
IN
8
L-CH
3
H-MUTE 5
R-CH
4
34 42 16 33
Q531
Q532
A–12V
L-CH
LFOUT 31
17
R-CH
IC561
NJM4558D
VOLUME
BUFFER
VOLUME
REAR REAR
8
OUT IN
5
20
3
28
LROUT
LRIN CENTER CENTER
4
18 30 OUT
A–12V
1
IN
6
4
IC431
A–12V
NJM4558D
LOW PASS FILTER
AMP.
4 5 6 7 8 9 10 11 1
75 74 73
76
77
78
P15
79
P16
80
NC
81
NC
82
NC
83
NC
84
DAPD
85 ADPD
86
AC3-RES
87 AC3-SS
88 AC3-SI
89 D-SEL
90 AC3-SCK
91 SW-ON
PRO-ENA
92
93 PRO-DI
94 PRO-CK
95 V-SW1
V-SW2
96
Q5 V-MUTE
97
NC 98
NC
99
VPP
100
1 2 3
J581
L-CH
1
7
R-CH
J581
HEADPHONES
A+12V
REAR
OUT
7
1
CENTER
SUB WOOFER
2
OUT