Philips 26MD257B/37 Service Manual page 139

Scaler Board Schematic Diagram-DVD Interface
1 2
FROM DVD AV & TX/RX
A
CN900
63396 16P 2.0mm
YPBPR1LIN
1
2
3 YPBPR1RIN
4
Y2_IN
5
6
7 PB2_IN
8
9 PR2_IN
10
11
12 YPbPr 2
13 U2RX
14 U2TX
15
FB900 SPDIF_DVD
16 1 2
600R/200mA BLM18AG601SN1D
C918
R908 NC/100P 50V
B 0R05 1/10W
C
+5V_AVSW
SPDIF_VREF
C915
0.1uF/25V
1K 1/10W 1%
R919
SPDIF_DVD
SPDIF_VREF ASPDIF ASPDIF_OUT
R951 C916
100R 1/10W 5% 0.1uF/25V 4K7 1/10W
TP912
R920 C917
SPDIF_VREF
D
+12V +12V_AV
1 TP908
+12V_AV
Q901
U903
LD1117S-TR
6 1
D D
5 2 3
D D VIN VOUT
4 3
S G
C902
SI3441BDV
R901 47U 25V C926
22K 1/10W
+5V_SW
E
R904
R902
10K 1/10W
10K 1/10W
R932
Q900 3K 1/10W 1%
BC847C C904
100N 25V
R905
10K 1/10W
F
YPBPR1RIN
+5V_AVSW
1K 1/10W 1%
R921
4052_VREF DVD AUDIO
YPBPR1LIN
R922 C920
G
H
1 2
3 4
NEARLY YPBPR CONNECTOR
L900
Y2_IN Y1_IN_Mux
0U10 H
R903 C903
75R 1/10W 15P 50V
Y1_IN_N
L901
PB2_IN PB1_IN_Mux
0U10 H
R906 C905
75R 1/10W 15P 50V
PB1_IN_N
L902
PR2_IN PR1_IN_Mux
0U10 H
R910 C908
15P 50V
75R 1/10W
PR1_IN_N
+5V_AVSW
R948
R917 R949 1K 1/10W
4K7 1/10W 100R 1/10W R952
U900 NC/0R05 1/8W
TS5A3157DCKRE4 C914 Y0_IN_Mux
1 6
NO IN 0.1uF/25V
2 5
GND V+
R953
3 4
NC COM
NC/0R05 1/8W
R918 SPDIF PB0_IN_Mux
R954
NC/0R05 1/8W
NEARLY CN660
PR0_IN_Mux
SPDIF_SW(GPIO_10): R916
NC/0R05 1/10W
TV: Low
SPDIF
DVD: High
R929
NC/0R05 1/10W
Y0_IN_INB
R930
NC/0R05 1/10W
+5V_AVSW +5V_AVSW
PB0_IN_INB
2 1 TP909 R931
NC/0R05 1/10W
R907 PR0_IN_INB
C925
1K 1/10W 1%
10U 25V
8187_VREF
1 TP910 R927
NC/0R05 1/10W
Side_RIN
R911 R909 C906
R928
NC/0R05 1/10W
1K 1/10W 1% Side_LIN
R913 1K 1/10W
DVD-RIN
C910 C911 R912
330P 50V 330P 50V Side_RIN
27K 1/10W
DVD-RIN
Side_LIN
R914 1K 1/10W
DVD-LIN DVD-LIN
C912 C913 R915
330P 50V 330P 50V 27K 1/10W
AUDIO_SW(GPIO_17):
Side: Low
DVD: High
AUDIO_SW
L
H
3 4
7.Circuit Diagrams and PWB Layouts
5 6 7
S-17 +5V_AVSW
C901 C928 C929
100N 25V 100N 25V 100N 25V
+5V_AVSW
U902
R947
100R 1/10W
YPBPR_SW
22
SEL A/B
R933 1K 1/10W
23
OE VREF
C934 1U 16V
Y0_IN_Mux Y0_IN_INB
1
IN0A OUT0
C936 1U 16V
Y1_IN_Mux 12
IN0B
C938 1U 16V
OUT1
PB0_IN_Mux PB0_IN_INB
3
IN1A
C940 1U 16V
PB1_IN_Mux
10
IN1B OUT2
C937 1U 16V
PR0_IN_Mux PR0_IN_INB 5
IN2A
C935 1U 16V
PR1_IN_Mux
8
IN2B
R934 47K 1/10W 1%
AD8188ARU
R935 47K 1/10W 1%
R936 47K 1/10W 1%
8187_VREF
R937 47K 1/10W 1%
R938 47K 1/10W 1%
R939 47K 1/10W 1%
BYPASS DVD
Y0_IN_INB
PB0_IN_INB
PR0_IN_INB
Through hole behind AD8187
ASPDIF_OUT
8187_OUT0
8187_OUT1
Through hole behind AD8187
8187_OUT2
DVD_Side-RIN
DVD_Side-LIN
Through hole behind AD8187
4052_VREF
R926 R925 R924 R923
+5V_AVSW
C919
0.1uF/25V
U901
C921 1uF/10V DVD_Side-RIN
12 13
X0 Zx
C922
1uF/10V 14
X1
15
X2
11
X3
C923 1uF/10V 1 3 DVD_Side-LIN
Y0 Zy
C924 1uF/10V
5
Y1
2
Y2
7
VEE
4
Y3
Input control
R900 100R 1/10W
AUDIO_SW
10
A
9 E B(S1) A(S2)
B
74HC4052D
L
L H
L
L L
Side
DVD
5 6 7
8 9
AGND_AFE
1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16 AGND_AFE
C930 C931 Side_RIN
11 Side_RIN
100N 25V 100N 25V Side_LIN
11 Side_LIN
AUDIO_SW
5 AUDIO_SW
SOY1
5 SOY1
Y1P
5 Y1P
Y1N
5 Y1N
PB1P
5 PB1P
PB1N
5 PB1N
8187_VREF PR1P
5 PR1P
PR1N
5 PR1N
4
8187_OUT0 ASPDIF
20
5 ASPDIF
SPDIF_SW
5 SPDIF_SW
SPDIF
11 SPDIF
18 8187_OUT1
8187_OUT2 DVD_Side-RIN
16
14 DVD_Side-RIN
DVD_Side-LIN
14 DVD_Side-LIN
U2TX
5 U2TX
U2RX
5 U2RX
YPBPR_SW(GPIO_15):
YPBPR_SW
DVD: Low
5 YPBPR_SW
+12V
1,2,15 +12V
AV1: High +5V_SW
1,2,12,13,14,15,16 +5V_SW
Y0_IN_Mux
9 Y0_IN_Mux
Y0_IN_N
1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16 Y0_IN_N
PB0_IN_Mux
9 PB0_IN_Mux
PB0_IN_N
1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16 PB0_IN_N
PR0_IN_Mux
9 PR0_IN_Mux
PR0_IN_N
1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16 PR0_IN_N
NEARLY MT5372
8187_OUT0 C907 1N 25V SOY1
R940 68R 1/10W
C909 10N 50V
Y1P
Y0_IN_N R941 68R 1/10W
C927 10N 50V
Y1_IN_N Y1N
R942 100R 1/10W
C932 10N 50V
8187_OUT1 PB1P
R943 68R 1/10W
PB0_IN_N
C933 10N 50V
PB1_IN_N PB1N
R944 100R 1/10W
C939 10N 50V
8187_OUT2 PR1P
R945 68R 1/10W
PR0_IN_N
C900 10N 50V
PR1_IN_N PR1N
R946 100R 1/10W
Output
X1 and Y1 DVD
X0 and Y0 Side
8 9
TPM1.0U LA 17
10 11
CN900 A1
C900 E8
A
C901 A6
C902 E2
C903 A4
C904 E2
C905 B4
C906 E4
C907 C8
C908 B4
C909 C8
C910 F3
C911 F3
C912 G3
C913 G3
C914 C4
C915 C3
C916 C3
C917 D1
C918 B2
C919 F6
C920 G1
C921 F5
B
C922 F5
C923 G5
C924 G5
C925 E3
C926 E2
C927 D8
C928 A6
C929 A6
C930 A7
C931 A7
C932 D8
C933 D8
C934 B6
C935 B5
C936 B5
C937 B6
C938 B6
C939 E8
C940 B5
FB900 B2
L900 A3
C
L901 A3
L902 B3
Q900 E1
Q901 E1
R900 G6
R901 E1
R902 E1
R903 A3
R904 E1
R905 E1
R906 B3
R907 E3
R908 B1
R909 E3
R910 B3
R911 E3
R912 F3
R913 F3
R914 G3
R915 G3
R916 D5
D
R917 C3
R918 D3
R919 C1
R920 D1
R921 F1
R922 G1
R923 F6
R924 F6
R925 F6
R926 F6
R927 E5
R928 E5
R929 D5
R930 E5
R931 E5
R932 E3
R933 A6
R934 B6
R935 B6
R936 B6
R937 B6
R938 C6 E
R939 C6
R940 C8
R941 C8
R942 D8
R943 D8
R944 D8
R945 E8
R946 E8
R947 A6
R948 C3
R949 C3
R950 D2
R951 C2
R952 C5
R953 D5
R954 D5
TP900 A1
TP901 A1
TP902 A1
TP903 A1
TP904 A1 F
TP905 A1
TP906 A1
TP907 A1
TP908 D2
TP909 E3
TP910 E4
TP911 C1
TP912 D2
TP913 G1
U900 C3
U901 F6
U902 A6
U903 E2
G
H
10 11