Mains & Eco Stby Board - Circuit Diagram - Philips MX3900D Service Manual

MAINS & ECO STBY BOARD - CIRCUIT DIAGRAM
1901 A1 1908 B10 1912 A5 2904 D9 2908 E3
1905 A2 1909 A6 2901 D9 2905 D6 2909 D6
1906 D3 1910 B2 2902 D4 2906 D4 2910 E8
1907 A7 1911 A4 2903 D8 2907 D6 2911 E10
1 2
# 9901
1901
T2A
1905
1 2
L
1
A
N
2
4 5901 3
9902
#
Not for /22 /37
1910
OZ-SS-112L
#
B
8
5
1
/37 ONLY
C
+12V_M
12V
3917
100R
3918
BAS316 3919
100R
6919 1K5
D
LPC
6909 BAS316
7906
BC817-25
BAS316 6910
3914
E
47K
# Provision only
1 2
8-4
2912 E10 3901 C2 3905 D10 3909 E6 3914 E2
2913 E3 3902 D6 3906 D5 3910 E6 3915 D3
2914 E8 3903 D7 3907 D9 3911 E8 3916 D7
2915 E9 3904 D8 3908 E5 3913 E2 3917 C2
3 4
SDKGA
1905 values 1911
75W /21 T3.15A
For /21 only
127V
75W /21 Twin SW T3.15A
75W /22 T2A
75W /37 T3.15A
100W /21 Twin SW T4A
100W /22 Twin SW T2A
240V
9905
7
For /22 and /37 only
6
4
9
12
LPS
BAS316
6907
9906
BAS316
5903
1906
6918
1m
T200mA
For /21
3915
5902
1m
1N4003
10M
2908
For /22
1N4003
220n
470n
For /21 and /37
2913
3 4
3918 D2 5901 A1 5905 D9 6904 D10 6908 D8
3919 D1 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
5 6
1907
B2P3-VH
1
To Mains
2
Transformer
1909
VH
1
T2A
1912
2
For /21 only
To Mains
T2.5A UL
T2.0A IEC
3 Transformer
4
/21 ONLY
1N4003 1N4003
6901 6902
1N4003
3906 2905
6906
100K
10n
BC857B
6912
2909
7901
10n
6916
7904
BZX79-C39
BC817-40
6917
5 6
8-4
6912 D5 6917 E6 6921 C10 7905 E7 9904 B4
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
7 8 9
Mains Transformer Primary winding
/37, /22 ONLY
/21 ONLY
WHITE
RED
BLUE
BLACK
BROWN
YELLOW
WHITE
BLACK
+5V6_ECO
+12V_M
PW_DN
5905
STBY
2903
3904
4
5
330R 47n
2
6908
1
1N4148
7902 6
3
BC337-40
2914
2915
4n7
BC327-40
2n2
7905
VOLTAGE REGULATION
7 8 9
10
A
1908
FE-ST-VK-N B
LPC
1
2
To AV
3
Board
5.6V
4
12V
5
C
LPS
2901
12V
BAS316 BAS316
100n
6903 6904
D
2904
100n
+5V6_ECO
BAS316
6911
E
8239 210 93432 dd wk0250
10