Sharp HT-DP2500W Service Manual page 16

HT-DP2500W
A
CNS201
TO TUNER PWB
P18 5-A
B
C CNP1A
TO DISPLAY PWB
P16 1-F
D
R401
33K
L-CH
C401
390P
VCR-1
IN
C402
390P
R-CH
R402
33K MUTING
Q411
R405
2SC2878 B
1K
VCR-1:( )
0V
L-CH
0V
C405
E
(0.7V)
330P
0V
VCR-1
OUT
0V
C406
330P
R-CH
0V
R406
Q412
1K
2SC2878 B
MUTING
JK401
AUDIO R420
INPUT/ 2.2K
OUTPUT
TERMINALS
R421
33K
L-CH
R423
C421
4.7K
390P
VCR-2
IN
F C422 R424
390P 4.7K
R-CH
R422
33K
R425
33K
L-CH
C423 R427
390P 4.7K
AUX
IN
C424
R428
390P
4.7K
R-CH
R426
33K
C425
G 0.022
MAIN PWB-A1(1/2)
H
NOTES ON SCHEMATIC DIAGRAM can be found on page 9.
1
CNP201
TUN_CK
12
TUN_DO
11
TUN_CE
10
TUN_DI
9
D_GND
8
TUN_SD
7
TUN_ST
6
TUN_MUTE
5
A+12V
4
TUN_R
3
A_GND
2
TUN_L
1
FC1
FUN_SW
23
23
PROTECT
22
H/P_SW
21
SW_MUTE
20
C_MUTE
19
R_MUTE
18
F_MUTE
17
V_DATA
16
V_CK
15
V_LATCH
14
POSISTOR
13
SP_LEVEL
12
TUN_ST
11
TUN_SD
10
TUN_MUTE
9
TUN_CE
8
TUN_CK
7
TUN_DI
6
TUN_DO
5
V_MUTE
4
PRO_CK
3
PRO_DI
2
PRO_ENA
1
1
IC411
CNS1B
NJM4565D
VCR 1 OUTPUT AMP.
R403
4.7K
R404
4.7K
C411
47P
C409
47P
C407
R409
2.2/50
5.6K
–9.7V
R411
1 2 3 4
R407
18K
22K IC411
NJM4565D
R408
R410
R412
22K
5.6K 8 7 6 5
18K
R416
4.7K
C408
2.2/50
C410
C412
47P
R419
47P
2.2K
V_MUTE
FM SIGNAL
AUDIO SIGNAL
2 3
Figure 12 SCHEMATIC DIAGRAM (1/7)
C485
4.7/50
C487
4.7/50
C489
3.3/50
C491
0.15/50
C493
0.15/50
C495
0.47/50
R417
C413
8.2K
2.2/50
R415 C415
4.7K 0.022
R418
8.2K
+B
R448
220
+B
R449
C437 C438
220
47/16 47/16
4
– 12 –
R479
1K
C455
0.1
R480
C453
1K
0.1
48 47 46 45 44 43 42
4.7V
49
C484 4.7V
50
DC-OUT3
0.47/50
5.4V
51 R-RECT
4.8V
C486
DC-OUT4
52
0.47/50
5.4V
L-RECT
53
4.7V
C488
VLR-TH
54
0.15/50
4.7V
VLR-1
55
C490 4.7V
LV1035M
56 VLR-2
0.15/50
4.7V
DOLBY PRO LOGIC
VCR-2
57
4.7V
C492
DECORDER
58 VCR-1
3.3/50
4.7V
59 VCR-TH
C494 5.4V
L+R-RECT
60
4.7/50
4.7V
DC-OUT2
61
C496 5.4V
L-R-RECT
62
4.7/50
4.7V
DC-OUT1
63
4.7V
C497
64 R-BPF3
0.47/50
1 2 3 4 5 6
C454
0.1
C456
0.1
R522
R521
1K
1K
C517
1/50
C515
1/50
48 47
R503
27K
4.6V
R501
49
C511 LSELO
3.9K
47/16
4.6V
50
LINVIN1
R519 1K
C509 1/50 4.6V
51
L5
R517 1K
4.6V
C507 1/50
L4 (TUN)
52
R515 1K
C505 1/50 4.6V
L3 (AUX)
53
R513 1K
4.6V
C503 1/50
L2 (VCR2)
54
R511 1K
C501 1/50 4.6V
L1 (VCR1)
55
9.3V
+B VDD
56
R512 1K
C502 1/50 4.6V
R1 (VCR1)
57
R514 1K
C504 1/50 4.6V
R2 (VCR2)
58
R516 1K
C506 1/50 4.6V
R3 (AUX)
59
R518 1K
4.6V
C508 1/50
R4 (TUN)
60
R520 1K
4.6V
C510 1/50
R5
61
4.6V
RINVIN1
62
C512
4.6V
R502
RSELO
47/16 63
3.9K
4.5V
RTIN
C514 64
100P
1
C516
1/50
C520
0.47/50
5
41 40 39 38 37 36 35 34 33
OS
OS
VD
A/
N
D/
IC452
DC-OU
DC-OU
L-OU
R-OU
S-OU
GN
IRE
DE
VC
7 8 9 10 11 12 13 14 15 16
C464
C465
10/50
220/16
C463
10/50
+B
46 45 44 43 40 39 38
42 41
IC501
LC75396N
AUDIO PROCE
2 3 4 5 6 7 8 9 10 11
C526
0.039
6