Scaler Video/Audio - Sanyo DP19649 Service Manual

A B
8
FROM/TO JACK
TU_CVBS
PC_V
7
PC_H AV1_CVBS
AV3/AV4_Y
AV1_CVBS
AV1_Y
VGA-G
VGA-B
VGA-R
AV1_C
AV3/AV4_PR
SPDIF
AV3/AV4_PB
AV1_Y
6 AV1_C
FROM SCALER
AV3/AV4_Y
SP_MUTE
AV3/AV4_PB
5
FROM TUNER
AV3/AV4_PR
TU_CVBS
VGA-R
FROM AV SWITCH
VGA-G
SW_AUDIO_L
SW_AUDIO_R
VGA-B
4
PC_V
FROM/TO REGULATOR
PC_H
A3.3V
A1.8V
FILTER_MUTE
GND
3
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
C2944
1.0
A11 VIN5A
0.1 B
4
C2943
1.0
A12 VIN4A
0.1 B
5
C2938
1.0
B9 VIN4B
0.1 B
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
C2940
1.0
A10 VIN1B
0.1 B C2953
0
D9 VRP
0.1 B
9
C2957
1.0
A7 VIN1C
0.1 B C2954
0
DA_LOUT
C9 VRM
0.1 B
C2932
1.2
A6 VIN3C
0.1 B C2955
0
C11 VREFA
C2934 0.1 B
1.2
B12 VIN3A Audio DAC
DA_ROUT
0.1 B C2939
0
C10 VREFB
C2933 0.1 B
1.2
A9 VIN3B
0.1 B C2956
0
B8 VREFC
0.1 B
2.0
B16 VSIN
DA_VCOM
2.0
B17 HSIN
C2936 R2861
3.3
C12 LPF
0.1 B 1K 1/16W
R2856
1.8
D10 REXT
C2945
6.8K 1/16W
+-1% BCKO
0.1 B
ADATAO
IIS OUTPUT
LRCKO
ACLK
10
R2857 C2946
1.7
B2 AINL
220 1/16W 1 B
11
R2858 C2948
Audio ADC
1.7
A1 AINR
220 1/16W 1 B
C2950
0
C3 VCOM
SPDIF SPDIFO
0.1 B
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)
R2867
3.0
C4
4.7K 1/16W
R2866
3.0
A3
4.7K 1/16W
FILTER_MUTE
C2960
1.6
D4 SP_MUTE
0.1 B
C2959
10V 22 V-S
K3
NC
K4
NC
H4
NC
J4
NC
W855
3.3 SPDIF
J3
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 G
R2836
W913
10K 1/16W
R2837
W914
10K 1/16W
R3431
470 1/16W
12.5 MUTE SW
Q3407
D3403
KRC102SRTK
0
MA111
0
CAUTION: DIGITAL TRANSISTOR
F G
H
8
7
6
5
TO JACK
LOUT_SOUND
ROUT_SOUND
4
3
2
PCBDH0
CEH432
1
H
G-16