Philips MX3900D Service Manual page 47

MAINS & ECO STBY BOARD - CIRCUIT DIAGRAM (For pcb layout ... 93438)
0090 B1 1907 A7 1911 A4 2903 D8 2907 D6
1901 A1 1908 B10 1912 A5 2904 D9 2908 E3
1905 A2 1909 A7 2901 D9 2905 D6 2909 D6
1906 D3 1910 B2 2902 D4 2906 D4 2910 E8
1 2
MAINS
1905 values
75W /21
9901
#
75W /21 Twin SW
1901
T2A 1905 75W /22
1 2
L 75W /37
1
100W /21 Twin SW
A T2.0A IEC
100W /22 Twin SW
N
2
4 3
5901
# 9902
Not for /22 /37
0090
9905
SPRING 1910
OZ-SS-112L
B
8
5
1
/37 ONLY
C
+12V_M
12V
3917
100R
3918
100R
BAS316 3919
6919 1K5
D
LPC
6909 BAS316
7906
BC817-25
BAS316 6910
3914
E
47K
# Provision only
Note : Some values may varies, see respective parts list for correct value.
1 2
8-4a
2911 E10 2915 E9 3902 D6 3906 D5 3910 E6 3915 D4
2912 E10 2916 B2 3903 D7 3907 D9 3911 E8 3916 D7
2913 E3 2917 D4 3904 D8 3908 E5 3913 E2 3917 C2
2914 E8 3901 C2 3905 D10 3909 E6 3914 E2 3918 D2
3 4
T3.15A
T3.15A
SDKGA
T2A
1911
T3.15A
T4A
For /21 only
127V
240V
7
For /22 and /37 only
6
4
9
12
BAS316 LPS
6907
1N4003
6901
9906
BAS316
1N4003
5903
# 1906
6918
1m
6906
T200mA
For /21
3915
6912
5902
1m
1N4003
10M
6916
2908
For /22
1N4003
220n
470n
For /21 and /37
2913
3 4
3919 D2 5902 D4 6901 D5 6905 D6 6909 D1
3920 C10 5903 D4 6902 D5 6906 D5 6910 D1
3921 B2 5904 E5 6903 D10 6907 D3 6911 D9
5901 A1 5905 D9 6904 D10 6908 D8 6912 D5
5 6 7
1907 B2P3-VH
1
To Mains
2
Transformer
1909 VH
1
T2A 1912
For /21 only 2
T2.5A UL
To Mains
T2.0A IEC
3 Transformer
4
/21 ONLY
1N4003
6902
3906
2905
100K 10n
BC857B
2909
7901
10n
7904
BZX79-C39
BC817-40
6917
5 6 7
8-4a
6914 E9 6918 D3 7901 D6 7906 D2 9905 B2
6915 E10 6919 D1 7902 E7 9901 A1 9906 D3
6916 E5 6920 E2 7904 E5 9902 A1
6917 E6 6921 C10 7905 E7 9904 B4
8 9
Mains Transformer Primary Winding
/21 ONLY /37, /22 ONLY
WHITE
RED
BLUE
BLACK
BROWN
YELLOW
LPC
WHITE
BLACK
+5V6_ECO
5.6V
+12V_M
12V
PW_DN
2901
5905 100n
STBY
3904
2903
4
2904
5
47n
330R
2
100n
6908
1
BAS316
1N4148
6911
6
7902
3
BC337-40
2914
2915
4n7
BC327-40
2n2
7905
VOLTAGE REGULATION
8239_210_93438_01...for 3494 pt8 dd wk0350
8 9
10
A
1908
FE-ST-VK-N
B
1
2
To AV
3
Board
4
5
C
LPS
12V
BAS316 BAS316
6903 6904
D
+5V6_ECO
E
10