Scaler Video/Audio - Sanyo DP19649 Service Manual

A B
8
FROM/TO JACK
7 TU_CVBS
PC_V
C2944
PC_H AV1_CVBS
0.1 B
AV3/AV4_Y
AV1_CVBS
C2943
AV1_Y
VGA-G
0.1 B
VGA-B
VGA-R
C2938
AV1_C
AV3/AV4_PR
0.1 B
SPDIF
AV3/AV4_PB
AV1_Y
6
AV1_C
FROM SCALER
SP_MUTE
AV3/AV4_Y
C2940
AV3/AV4_PB
5 FROM TUNER
0.1 B
TU_CVBS
C2957
AV3/AV4_PR
0.1
FROM AV SWITCH C2932
VGA-R
0.1
SW_AUDIO_L
C2934
VGA-G
SW_AUDIO_R
0.1
4 C2933
VGA-B
0.1 B
PC_V
FROM/TO REGULATOR
PC_H
C2936
A3.3V
0.1
R2856
A1.8V
6.8K
+-1%
FILTER_MUTE
3 GND
SW_AUDIO_L
SW_AUDIO_R
2
1
A B
G-15
C
SCALER VIDEO/AUDIO SCHEMATIC DIAGRAM
SCALER IC
IC2801 R8J04012BG
C2952
1.9
B11 VIN6A
0.1 B
1.0
A11 VIN5A
4
1.0
A12 VIN4A
5
1.0
B9 VIN4B
6
A15 SSIN2
NC
NC A13 VIN2A
NC
B10 VIN2B(DVD_Y)
1.6
NC
B7 VIN2C(DVD_C)
1.6
C2958
1.0
B15 SSIN1
0.1 B
7
C2937
1.0
B13 VIN1A
0.1 B
8
1.0
A10 VIN1B
C2953
0
D9 VRP
0.1 B
9
1.0
A7 VIN1C
B C2954
0
DA_LOUT C4
C9 VRM
0.1 B
1.2
A6 VIN3C
B C2955
0
C11 VREFA
0.1 B
1.2
B12 VIN3A Audio DAC
DA_ROUT A3
B C2939
0
C10 VREFB
0.1 B
1.2
A9 VIN3B
C2956
0
B8 VREFC
0.1 B
2.0
B16 VSIN
DA_VCOM D4
2.0
B17 HSIN
1005 R2861
3.3
C12 LPF
B 1K 1/16W
1.8
D10 REXT
1/16W
BCKO K3
C2945
ADATAO K4
0.1 B IIS OUTPUT
LRCKO H4
1005 1608
ACLK
J4
10
R2857 C2946
1.7
B2 AINL
220 1/16W 1 B
1005 1608
11
R2858 C2948
Audio ADC
1.7
A1 AINR
220 1/16W 1 B
C2950
0
C3 VCOM
SPDIF SPDIFO J3
0.1 B
2125
C2951
10V 10 B
NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
C
D E
(DIGITAL PCB)
1005
R2867
3.0
4.7K 1/16W
1005
R2866
3.0
4.7K 1/16W
FILTER_MUTE
C2960
1.6
SP_MUTE
0.1 B
C2959_1
10V 22 RV3
NC
NC
NC
NC
W855
3.3 SPDIF
NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
D E
F
W913
W914
1005
R3431
470 1/16W
MUTE SW
12.5
Q3407
D3403
0
KRC102SRTK
MA111
0
CAUTION: DIGITAL TRANSISTOR
F
G H
8
7
6
5
TO JACK
R2836
LOUT_SOUND
10K 1/16W
R2837
ROUT_SOUND
10K 1/16W
4
3
2
PCBDH0
CEJ500
1
G H
G-16