Grundig Davio 20 LCD 51-5710 Text GBF6600 Service Anleitung Seite 40

Netzteil-Platte / Power Supply Board Z1J194
L907
LINE FILTER
L904
PFC_LM
2 4
C906
C909
C956
R953
1n/1kV
1nF 250VAC
1K 2W
R901 470n
C908
1M
1n/1kV
C901
470nF/305VAC
L906
C907
2*28MH 3A
220p /1KV
C905
470nF/305VAC
L900
2*28MH 3A
C900
470nF/305VAC
R900
S14K385
C954 C955
FS900
C903
1nF 250VAC
1nF 250VAC
5A
100n
X900
MAINS
VCC
Overvoltage
20V
-
Protection
Foldback
+
Point Corr.
UVLO
PCS
+
-
Burst-Mode
-
1.5V
+
Reference
Voltage and
SRC +
+ Current
5V
-
-
2V
+
Ringing
+ 4.8V
-
Suppression
-
Time
1V 20k
+
4.4V
-
Start
5V
+
3.5V
-
50µs Timer
Latch
50ms Timer
Primary
25mV
Regulation
+
Digital Processing
RZI
-
Power
ZC-Counter
Driver
UP/DO-Counter
5.7V
SET Q
S
-
Q
R
+ CLR
1V
SET
OFC + D Q
-
1V
L Q
CLR
ICE1QS01
GND
SMPS HEATSINK
R943
470k 1/2W
DB900
KBU6M
C915 C910
22n/400V
150u/400V
4 1
R903
1M 1W
D918
C913
1N4148
1
680p
R961
1K8 1 8
NC VCC
2 7
PCS OUT
3 6
RZI GND
R915
4 5
SRC OFC
12K
IC900
ICE1QS01
R963
R964
C936
100R
0.1R
3 C958
1.5n 470pF
R912
47k R971
22k
C932
56p
R904
1M 1W
R949
560k 1/2W
C943
C952
C914
680p
p
47p
C904
100n
1 8
NC VCC
6 2 7
PCS OUT
3 6
RZI GND
R916
4 5
SRC OFC
12K
IC901
C937
1.5n ICE1QS01
5V
R914
47k
C934
56p
OUT
4 5
HS905
R962
FB900
0R R909
C918
U900
47k 3W FB
33n/630V
6
C922
220p/2kV
D910
2
BYT54M
C961
1n/50VJ
T900 1
R907
FQP12N600
R905
0R
C920
120
470p/2kV
2
D904
2
IMBD4148
C916
R952
47p
150R 1/4 W
3
D905
D906
IMBD4148
R917
27R
IMBD4148
4
ZD900
C940 C944
*
C938
18V 47u/50V
10n
100n SMPS_LM
FB901
R910
C919
47k 3W FB
33n/630V
6
SMPS HEATSINK
HS902 C923
220p/2kV
5
D911
UF4007F
R908
D907
T901
4
0R 1
IMBD4148 2SK3562
C921
R906
2 470p/2kV
2
120
C917
47p
D908 R954
D909
IMBD4148 120R
3
R939
R918
R948 IMBD4148
27R
27R
*
C945
C942
C939
22u/50V
10n
100n
ZD903
18V J914 J915 4
SMPS_LM
R940
100R
R923
4.7M 0.5W
C946
2.2n/250V
C946A
2.2n/250V
6
7
8
1
2
SMPS HEATSINK SMPS HEATSINK
9
R965
10
100R HS900 HS904
R966 C959
100R 1nF
R967
100R
D915
11
MBR30H100CT
12 1 2
3
C924 C925 C926
680u/35V 680u/35V 680u/35V
D916
MBR30H100CT
1 2
3
R947
0R
PH900
TCET1100
R928
R950
4 1
R925
0R
R933
820
100
39k
3 2
R929
1k
C933 C949
R941 56p 47n
IC902
0R
TL431C
R935
C948
2.7k %1
U901
47n
7
T902
8
BC848B
REG_EN
R931
R920 C941
22k
47k 10n
REG_EN
9
10
11
D917
3.3uH (mavi)
12 1 2
3 R913
C928 C929
47K
MBR30H100CT
1000u/25V 1000u/25V C930
R968
1000u/25V
100R
SMPS HEATSINK
R969 C960
100R 1nF
HS903
R970
100R
ZD902 ZD904
8V2 8V2
PH901
R951
TCET1100
0R
4 1
R926
820 R934
3 2
39k
C957
R930
1nF R960
1k
0R R942
C935 C951
56p 47n
0R
IC903
TL431C
R936
2.7k %1
C950
47n
T903
R932
R921
BC848B
22k
47k
3
24V
L902
S900
4.7UH
1
R911 2
R944
C927
47K
47K
220u/35V
3
4
5
6
R924 7
1,2k
8
9
R937
22k %1
10
2.5mm
S902
5mm
1
P1
12V 2
P2
3
P3
4
P4
R927
5
P5
10k
6
P6
7
P7
1-Enable
R922
T904
BC848B
47k
R902
47k
12V
S901
L903
1
P1
2
P2
3
P3
4
P4
C931
5
C340 R945
P5
1000u/25V
6
0.1uF
47K P6
7
P7
2.5mm
R946
500R
R938
10k
REG_EN