Philips 26MD257B/37 Service Manual page 56

54
TPM1.0U LA
Inverter Schematic Diagram(for 15MF237S)
Board
1 2
IN
A
VDD
B
VDD
R815
30K
R804
10K
C
C826
0.01uF/NC
R816
20K
C831
C846
0.33uF
1uF
D
R861
BRIGHT_CTL
2 1
130K_1%_1/4W
CN852
WAFER 2.0MM 9P 63389
+16V
E
F801 2.5A/250V
1
2
3
+16A(not use)
4
+12V(not use)
BRIGHT_CTL
5
INVER_ON/FF
6
7
8
9
R871
F INVER_ON/FF 2 1 1
10K_1/4W
R872 C871
0.1uF_NC
100K
G
H
1 2
3 4 5
+16V
C820 C821
1uF
470uF/25V
C811
1uF
R811 R813
3M3 47K_1%
Q821
1 8
S1 D1
2 7
U811 G1 D1
3 6
S2 D2
1 16 4 5
DRV1 PGND G2 D2
AM9945N
2 15
VDDA DRV2
3 14
TIMER GNDA
4 13
DIM CT
C813
5 12
ISEN SSTCMP
390pF_NPO
6 11
VSEN LCT
C847
7 10
OVPT ENA 0.022uF/25V
C812
8 9
NC1 NC2 R812
0.1uF
OZ9938GN 620K
C832
0.1uF
VDD
R807
2 1
10K 1/10W
R819
C819
1M
10nF
R863
Isen
2 1
27K_1%_1/6W
VDD
Isen
Q880
2N7002
1
+16V
C880
0.1uF
2 Q873 Q881
PDTA144EU 2N7002
Q871
2N7002 R874
330? 1/10W
R873
2.7K?
Q874
1
2N3904
ZD874
VDD
RLZ5.6B
C874
0.1uF
3 4 5
7. Circuit Diagrams and PWB Layouts
6 7
R834
C802 6.2M? 1/2W_NC
3pF/3KV
6 PT801
5 7
4
C801
3
15pF/3KV
2 8
C823
1 R824
1.5nF R821 R822 C838
7.5K_1%_NC
27R 27R 80TL15T900 DN 1000pF_NPO
R820 R823
27R 27R
R837 C860
8.2K_1%
100pF
C822
1.5nF
R839
C805
6.2M 1/2W
5pF/3KV_NC
R880
10K
D881
R882
1 2 1 OP1
1K 1/10W
IN4148
R881
C881
0.01uF 100K 1/10W
6 7
8 9 10
1
CN821
2
CONN_NC
1 CN831
2
CONN
OP1
R831
1.2K
R835
1 2
10K_1%
R836
10K_1% D833
BAV99
BAV70/SOT23B
D831
2
3
R829 1
1 2
0? 1/10W
R833
R830
1K
10K_1%_NC
2
1
R865
R866
C865
0.36 _1% 100K/NC
33nF
CP NR. CL6xxxx
Title
15MF237S INVERTER BOARD
Size Document Number
C
E157C2NKA1PMNS (715T2202-1)
Date: Nov 22, 2006
8 9 10
11
CN821 A10
CN823 B10
CN831 A10 A
CN833 C10
CN852 E1
C801 B7
C802 A7
C805 C7
C811 B3
C812 C4
C813 C4
C819 D3
C820 B5
C821 B5
C822 B6
C823 B5
C826 C2
C831 D2
B
C832 D3
C838 B7
C846 D2
C847 C4
CN823 C860 B7
CONN_NC C865 E9
C871 F2
C874 G4
C880 E5
C881 F5
CN833 D831 B9
CONN
D833 B8
D881 F7
F801 E1
PT801 A6
Q821 B5
C
Q871 F3
Q873 F3
Q874 F3
Q880 E4
Q881 F5
R804 C2
R807 D3
R811 B4
R812 C4
R813 B4
R815 B2
R816 C2
R819 D3
R820 B5
R821 B6
R822 B6 D
R823 B5
R824 B7
R829 B8
R830 B8
R831 B9
R833 B9
R834 A7
R835 B8
R836 B8
R837 B7
R839 B7
R861 E2
R863 E4
R865 E9
R866 E9
E
R871 F2
R872 F2
R873 F3
R874 F4
R880 E5
R881 F6
R882 F6
U811 C3
ZD874 F3
F
G
DS 15" TV 2-lamp inverter
H
Rev
1
Sheet 1 of 1
11