Grundig Toronto 32-7931a T, Service Manual

Page: 57 / 82

GRUNDIG Service Chassis T8 / T9
2 - 31
Chassisplatte T9 – Netzteil / Chassis Board T9 – Power Supply YVR190R-8
R918
4.7K
C900
1uF/16V
R917
4.7K
R913
10K
5
4
3
2
1
6
Q900
BC847BDW1T1
C920
1uF
L904
300R/100MHz
R916
10K
R914
22K
L903
NC
C907
1uF/16V
R919
1K
Panel_ON_OFF
VCC5V
PANEL-VCC +5V_ST
+12V
VCC3.3V-ST
Panel Power
Hi: Off
Lo: On
VCC2.5V-ST
VCC2.5V-ST
VCC3.3V-ST
TP46
C919
NC
C917
10uF/6.3V
1
3 2
T901
DMN3150
Pd=0.6W
2
3
1
IC902
ZTL431AFFTA
C915
1uF
VCC1.2V-ST
VCC1.2V-ST
450mA
C916
10uF/6.3V
C918
100nF
TP47
Pd=0.6W
Thermal pad required
1
3 2
T903
DMP2215
+12V
CB902
470nF
R920
4.7K
R922
4.7K
R921
4.7K
R923
1K
BRI_ADJ-PWM2
VBLCTRL
+5V_ST
+5V_ST
Power
Hi: Off
Lo: On
C922
220uF/16V
L905
120R/100MHz
L907
120R/100MHz
C924
220uF/16V
+5V_ST +12V
L906
120R/100MHz
P24V
L: Power OFF
H: Power ON
R924
4.7K
R926
4.7K
R925
4.7K
+5V_ST
+5V_ST
Hi: Off
Lo: On
L908
300R/100MHz
L909
300R/100MHz
VCC5V
R900 NC
R904 0R
R905
100R
VCC5V
VCC3.3V-ST
C908
1uF/16V
C909
100nF
C910
1uF/16V
5
4
3
2
1
6
Q901
BC847BDW1T1
Only for Analog Dimmimng
L917
60R/100MHz
C936
100nF
C937
100nF
R939
2.7K 1%
R942
2.7K 1%
C938
10uF/6.3V
+5V_ST
TP84
TP86
TP143
R485
(560R)
Power-ON/OFF
Power-ON/OFF
C903
10u 16V
VCC3.3V-ST
C906
10uF 16V
R903
390K %1
R902 120k %1
C902
10n
NR3015T1RON
L901 1uH
C912
10u/6V3
C913
10u/6v3
TP1
VCC3.3V-ST
R906
100k
AGND
1
N/C
2
PGND
3
SW
4
IN
5
N/C
6
BS
7
VCC
8
POK
9
IN
10
SW
11
PGND
12
EN/SYNC
13
FB
14
GN
D
15
IC900
MP2205A
C911
1u/10V X5R
C905
1uF/10V
R929
10k
max 1800mA
+5V_ST
R907
10K
2
1
6
T906B
BC847BDW1T1_A
5
4
3
T906A
BC847BDW1T1_A
System-RST
System-RST
VCC3.3V-ST
+5V_ST
R901
10K
TP2
+12V
+5V_ST
1 2
D900 GS1M
D901
PMEG2020EH
C901
10u/6v3
L902
120R/100MHz
C921
1n
1
3 2
T902
DMN3150
2
3
1
IC904
ZTL431AFFTA
TP112
TP113
TP114
TP111
TP110
R909
0R
R908
NC
R927
4.7K
ADJ
1
VOUT
2
VIN
3
IC903
AP1117YL-13
C904
NC(10uF/805)
C930
10uF/805
C931
100nF
P1
1
P2
2
P3
3
P4
4
P5
5
P6
6
P7
7
P8
8
P9
9
P10
10
P11
11
P12
12
P13
13
P14
14
P15
15
P16
16
S904
POWER
D902
PMEG2020EH
1
2
2 3
Trigger
AP1117
3
Thermal
Shutdown 1
2 Vout
Adj
1.25V +
+
CURRENT
LIMIT
Vin
-
+
+
1
GND
(FIXED)
-
1
2
power on (trigger: +5V_ST)