Grundig GDRH 5625, Service Manual

Page: 22 / 43

Netzteil / Power Supply
C906
150uF\400V
D901~D904
1N4007
C905
0.
1u
F
/2
75
V
C904
0.
1u
F
/2
75
V
F901
250V/T2AL
C927
10nF(103)/1KV
R905
47
K
/2
W
D914
FR157
R903
150K
C901
HJE102M
C902
HJE102M
R904
150K
R901
1.5M
R902
1.5M
R916
68R
R918
22K
R917
68R
D912
HER306
+ C932
10
00
uF
/2
5V
L902
4.7uH/3A
+
C921
470uF/25V
+12V / 1.2A ( for L oader)
U931
AZ431BZ
R931
10K
R923
10k
U902B
PC817X3
R920
1K
D906
FR103
Q901
STP10NK 60
R934
0.33/ 2W
R915 15K
1
INV
2
COMP
3
V
F
F
6
G
N
D
7
GD
8
V
C
C
4
CS
5
ZCD
U901
L6565
R914
47k
R913
10K
C909 152
C908
152
ZD901 1N5245B
15V
U902A
PC817X3
R925
3.3K
C912
104
R922
22K
+
C911
47uF/50V
C910
104
J900
L901
JLF0002
C903 HJE102M
R912
200R
R921
100K/1W
U906B
PC817X3
R933
9.1K
D918 STPS1545D
+
C915
22
00
uF
/1
6V
+ C917
10
00
uF
/1
6V
D923
1N5822
L904
4.7uH/4A
+
C916
22
00
uF
/1
6V
+ C918
10
00
uF
/1
6V
+
C919
100uF/16V
D919
RL252
+5V / 2A
GND
C934
2200pF/1KV
2.5V / 1.5A
C920
0.068uF/50V
D905
FR103
1
2
3
4
8
7
6
5
U905
VIPER12A
+
H
V
+
H
V
D909
FR107
R927
22R
D910
FR107
U906A
PC817X3
+ C925
22uF/50V
D916
FR107
D917
FR107
D913
FR107
+ C922
47uF/50V
+
C923
47uF/50V
+
C931
100uF/16V
+
C926
22uF/50V
L905
10uH/200mA
ZD902 1N5231B
5.1V/0.5W
ZD904 BZX 55C3V9
3.9V
FIP1
FIP2
25NV
GND
5V/STB
T902 / JTP4500-19-2
T901 / JTP5550-2(E R3531)
Q902
2N5551
PWR CTL
R938
2.2K
R911
10K
R929
47K
C933
104
L903
4.7uH/4A
U907B
PC817X3
U907A
PC817X3
R932
3.3K
Q903
PNP1 S8550
R937
68K
R919 10k
D911
FR102
-12V / 50mA
D922
1N5822
+
C913
47uF/35V
D915 SR3100 + C930
2200uF/25V
+12V / 0.7A (for H DD)
D924 FR203
+ C928
220uF/25V
L906
10uH/200mA
+ C929
47uF/25V
+12V / 100mA (f or IC)
L907
4.7uH/3A + C907
2200uF/25V
D920
RL252
3.3V / 1A
C924
0.1uF/50V
R942
200R
+
C914
100uF/16V
+
C941
1000uF/25V
R935
1K
R936
1K
R940
1K
3
1
4
2
1
2
3 4
L6565
+
-
V
REF2
VOLTAGE
REGULATOR
INTERNAL
SUPPLY
+
-
2.5V
R1
R2
+ -
DRIVER
+
-
ZERO CURRENT
DETECTOR
2.1V
1.6V
V
CC
8
1
3 2
4
ZCD
V CC
INV
COMP
VFF
CS
GD
7
5
GND
6
20V
40K
5pF
BLANKING
LINE VOLTAGE
FEEDFORWARD
Hiccup-mode
OCP
DISABLE
R
S
Q
STARTER
2 V
+ -
Hiccup-mode
OCP
Starter
STOP
Q
UVLO
Blanking
START
VIPer12AS
ON/OFF
0.23 V
DRAIN
SOURCE
VDD
PWM
LATCH
60kHz
OSCILLATOR
BLANKING
+
_
8/14.5V
_
+
FF
S
R1
R4
Q
R3
FB
REGULATOR
INTERNAL
SUPPLY
OVERVOLTAGE
LATCH
OVERTEMP.
DETECTOR
1 k
Ω
42V
_
+
R2
FF
S
R
Q
230
Ω
GR
UNDIG Ser
vice
GDRH 5625
2 -
2