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GRUNDIG Service
Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
Netzteil / Power Supply
Vorabversion
Preliminary Version
Power
+12V_ST
+5V_ST
S904
L905
120R/100MHz
1
2
3
4
5
6
L906
7
120R/100MHz
8
L907
9
120R/100MHz
10
11
C922
12
220u/16V
13
14
POWER
H: Power ON
L: Power OFF
D901
+5V_ST
PMEG2020EH
L900
D900
S2A
120R/100MHz
+12V
C906
1u/16V X7R
GND
VCC3.3V
VCC3.3V-ST
R939
*
T907
+12V
PMV56XN
R940
10K
R941
100K
SUB-MICRO
PCB Index R-4
EXT_DIM_IN
EXT_DIM_OUT
P24V
NC when using
From Tcon
DCR from Tcon
when using DCR
L917
EXT_DIM_IN
120R/100MHz
C908
C923
C924
C909
1u/16V
10u/35V
100n/50V
220u/16V
VCC3.3V-ST
C905
10u
IC900
GND
1
2
C903
4u7
3
GND
4
R901
ST1S10
5K36 %1
GND
+5V_ST
VCC3.3V
+12V
C938
1uF
C939
100nF
Panel_ON_OFF
Hi: Off
Lo: On
VCC5V
R936
1K
R935
*
R934
10K
EXT_DIM_IN
EXT_DIM_OUT
R923
1K
+12V
CB902
470n
Only for
Analog Dimming
L908
300R/100MHz
L909
300R/100MHz
C936
C937
C910
1u/16V
100n/50V
100n/50V
C902
R903
4n7
15K %1
8
VIN_A
PGND
L901
7
INH (EN)
SW
3u3
6
VFB
VIN_SW
5
1
AGND
SYNC
GND
Panel Power
L915
1u
L903
FERRIT
L904
C900
C935
NC
1u/16V
+5V_ST
VCC3.3V-ST
R918
4K7
R919
1K
5
2 -
+5V_ST
T906
2N7002
R921
BRI_ADJ-PWM2
4K7
R922
VBLCTRL
+5V_ST
4K7
+5V_ST
R920
4K7
R924
+5V_ST
4K7
2
R926
Q901
5
BC847BDW1T1
4K7
R902
1K8 %1
1
L902
120R/100MHz
C912
C913
22u
22u
GND
T903
PMV65XP
PANEL-VCC
C920
R914
10K
100n
R916
1K
R917
4K7
2
Q900
BC847BDW1T1
Chassis SE
Hi: Off
Lo: On
R925
4K7
Power-ON/OFF
Hi: Off
Lo: On
VCC3.3V-ST
C901
C904
22u
NC
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