Philco PH-919 Service Manual page 47

5.Audio&Video D/A
1
R51 10Ohm
+5V
C53
100u
D
P3.0
P3.1
A20
RN2
ACLK
ACLK
ABCK
ABCK
ALRCK
ALRCK
ASDAT0
ASDAT0
R49
ASDAT1
ASDAT1
R50
ASDAT2
ASDAT2
C
VVCC
CB16
0.1u
B R59 RES
GND_V
Y3
Y3
R67
160,1%
GND_V
VVCC
CB21
0.1u
R68 RES
GND_V
A
Y3
GND_V
1
45
U12 KHTech DA1196
SSOP-28
+5VDD 6 CH DAC for DCL34MK-75
1 15
DVDD AVDD1
28
AVDD2
+ CB56
20
AGND1
0.1u 24
AGND2
9
MUTE
11 26
DGND GR0
22
GR1
18
RN5 NOT Stuffed
GR2
GND_POWER
33x4 14
SDIN/DM0
13 25
SCLK/IWL OUT0L
12
LATCH/12S
8 27
MODE OUT0R
21
OUT1L
33x4 2
SACLK
MCLK
3 23
SABCK
BCLK OUT1R
4
SALRCK
LRCLK
5 17
SADAT0
DIN0 OUT2L
33Ohm 6
DIN1
33Ohm 7 19
DIN2 OUT2R
10 16
LRCLK2 CAP
Hardw are Control ModeI2S Format
RN4
33x4
or Op ti onal SoftwareCon trol Mod e.
U13 KHTech DA1131
+5VDD
SOP14
GND_POWER
2 CH DAC for DCL34MK-72
8 7
VDD GND
9 6
LMAIN
OUTL OUTR
10 5
MUTE CAP
11 4
NC NC
12 3
DEEMPH BCK
13 2
FORMAT SDATA
14 1
SACLK
SCK LRCK
I2S FORMAT
GND A
VVCC
CB7
R58 R80
75Ohm 0.1u 75Ohm
0805 0805
R81 RES
GND_V
CVBS1 T_SY
Q4 Q8
Y2
Y2
3906 3906
R85
160,1%
GND_V
VVCC
CB25
R71 R104
75Ohm 0.1u 75Ohm
0805 0805
R107 RES
GND_V
CVBS2 ROUT
Q6 Q15
Y6
Y6
3906 3906
R108
160,1%
GND_V
2
+5VA
R52 10Ohm
+5V AMDTA
CB58 CB106 + C55
0.1u 0.1u 100u
GND A
LMAIN
RMAIN
LREAR
RREAR
CENT
LFE
CB57 0.1u
C54 10u
JST14 Pin 2.0mm Pitch
LMAIN
RMAIN
LREAR
GND A
RREAR
CENT
LFE
MICMUTE
MICMUTE
RMAIN MUTE
MUTE
ASPDIF
ASPDIF
SABCK
+5V
SADAT0
SALRCK
GND A GND_POWER
VVCC
CB6
CVBS2
R94
0.1u 75Ohm
CVBS1
0805
T_SC
R95 RES
T_SY
GND_V
T_SC
ROUT
GOUT
Q12
Y1 BOUT
Y1
3906
FS1
FS1
HSYNC#
HSYNC#
VSYNC#
VSYNC#
R97
160,1%
GND_V GND_V GND_POWER
VVCC
CB23 CB24
R116
0.1u
0.1u 75Ohm
0805
R119 RES R135 RES
GND_V GND_V
GOUT
Q17
Y4 Y5
Y4 Y5
3906
R120 R137
160,1% 160,1%
GND_V
2
3
+5V
R177 10Ohm
AMDAT
U21 KHTech AD1181
SOP14
7
SALRCK
LRCK
6
SABCK
BCK
5
SACLK
SCKI
R2 RES 4
VDD
R3 RES 3
DGND
2
MIC IN 2
VINR
1
MIC IN 1
VINL
C157 + CB111 CB12
47u 0.1u 0.1u
GND_A
CN7
1
2
3
JST6Pin 2.0mm Pitch
4
SABCK
5
SALRCK
6
7
MIC IN 2
8
9
MIC IN 1
10
11
12
13
14
GND A
CN6
Video Output
JST13 Pin 2.0mm Pitch
13
12
DV33
11
L21 FB 0805
10
9
8
7
6
5
4
3
2
1
VVCC
The information has been checked and is believed to be reliable. However, no
R130
responsibility is assumed for inaccuracies. Circuit diagrams are provided as a
75Ohm means of illustrating typical applications; MAXITECH Technology reserves the
right to make changes at any time in order to improve the design.
0805
BOUT
Q22
3906
GND_V
3
4
8
DOUT
9
BYPASS
10
FMT D
11
VCC
12
AGND
13
VREF2
14
VREF1
+ C155 + C156
4.7u 4.7u
GND_A
CN10
Audio IN
1
C
2
3
4
5
6
GND A
VVCC +5V
L22 RES
B
+ C95
220u
GND_V
A
4
45