Philips FW-C798/21/37 Service Manual page 59

MAINS BOARD - CIRCUIT DIAGRAM
1902 A3 1912 A10 1923 A6 2902 D3 2912 F3
1903 D1 1913 A10 1924 B6 2903 E3 2913 F3
1904 D2 1914 E7 1925 C6 2904 E3 2921 A7
1905 B2 1921 A6 1926 C6 2905 E3 2922 A7
1911 A10 1922 A6 2901 D2 2911 F2 2923 A8
1 2
: PROVISION
*
Note : Some values may varies, see respective parts list for correct value.
A
For /22
5906 2422 535 94821
9903
1 5906 2
1905
4 3
T6.3A UL
T5A IEC
8902_B
L
B
N
4 5902 3
8901_B
1 2
9904
For /21
5902 3104 210 50950
C
not in /21
120 OHM / 1W for /37
470 OHM / 1W for /22
3902
9907
OPTIONAL FOR
/22, /37
1903
T200mA
1904
T200mA
5903
D
1
98TS-037A-5
gnd_s
9908
gnd_s
E
3955
LPS
1K
6915
1N4148
F
gnd_s
1 2
11-3
2924 A8 2929 B9 2942 C7 2947 D7 2998 B8 3905 D4
2925 A8 2930 B9 2943 C8 2948 F4 3901 E1 3906 D4
2926 A8 2931 B9 2944 C8 2949 D7 3902 D1 3907 E2
2927 B8 2932 B9 2945 D7 2953 D10 3903 E2 3912 F3
2928 B9 2941 C6 2946 D7 2997 B8 3904 E2 3913 F3
3 4
SDKGA
5008
1902
127V
5007
5006
240V
5005
5905
4
1
5004
3 2
5003
6910 6911
1N4148 1N4148
7901
BYV10-40
BC327-25
6908
7902
BC547B
*
1N4003
gnd_s
gnd_s 7.6V
/21only
6909
3913
LPS
10K
8.2V
7911
BC547B
3912
100K
0V
*
*
gnd_s
gnd_s gnd_s
gnd_s
3 4
3914 E5 3942 E7 3955 F1 6900 D3 6905 E1 6910 C3
3921 B6 3951 C8 5902 B1 6901 D2 6906 E2 6911 C3
3922 B7 3952 D9 5903 D1 6902 D2 6907 E4 6915 F2
3923 B8 3953 D9 5905 B3 6903 D3 6908 D4 6916 F4
3941 D8 3954 D10 5906 A1 6904 D3 6909 E4 6917 E6
5 6 7
T5A
1921
5921
3
T5A
1922
5920
6921
GBU6D
1
5919
T5A
2
1923
5918
T5A
1924
5917
9925
5916
F1
1R
5915
3921
*
F2
5914
NTC
5913
GND
T2A5
1925
5912
T1A6
1926
5911
5910
7912
* *
BC547B
0V
1.2V
GND
To L/R + Sup
FE-BT-VK-N
1914
1
-Vkk
2
F1
gnd_s gnd_s 3
F2
4
PD
5
NTC
6
LSTBY
7
LPS
GND_D
5 6 7
11-3
6918 E6 6925 C7 6955 D10 7912 D5 8902_B B1
6921 A7 6926 C7 6956 D6 7951 C9 9900 E4
6922 A8 6927 C7 7901 D4 7952 C10 9903 A1
6923 C6 6928 C7 7902 E4 8230 F8 9904 B1
6924 C6 6930 F1 7911 F3 8901_B B1 9907 D1
8 9
3
4 1 6922 4
GBU6D
2
*
7951 7952
BC327-40 BC327-40
-43V
-37V
6K8 6K8
-33V
3952 -38V 3953
GND
*
*
70W
2997 3m3/50V
2927
3m3/50V
2998
2928
70W others 2929
3952 2930
3K3 6K8
3953 3K3 6K8 2931
3954 2932
220R 390R
8230
LPC
L
GND
Z
gnd_s
H
3139 118 53730...for 88160...3433 pt7 dd wk0139
8 9
9908 D2 9924 B6 9931 B10
9910 D4 9925 B6
9921 A6 9926 B7
9922 A6 9927 B7
9923 B6 9930 A10
10
To C/S_DPL To L/R + Sup
DIPMATE
DIPMATE
1911 1912 1913
1
1 A1
2 A
2
B1
3
3
GND_D
4
GND_D
4
5
5 B2
6
6 A2
7 +D
8
GND
B
9 +D2
GND_D
C
FTD bias
-VKK
-33V
390R
3954
D
GND_D
100W 135W
- -
E
- 4m7/50V 4m7/50V
- -
- 4m7/50V 4m7/50V
- - -
- - 3m3/50V
- - -
- - 3m3/50V
lpc relay Mode
float OFF LSTB
F
H ON DEMO, 12V OFF
H ON ON, 12V ON
10