Power Supply Vtc194-22 - Grundig 22 XLE 3220 BA Service Manual

Netzteil / Power Supply VTC194-22
!
220pF 250V
C2005
! !
S2001
!
!
L2004
10mH,0.7A
AC input
01
02
!
F2001
T2AL/250V
C2004
220pF 250V
!
S2002 VCC5V3
1
P1 P1
2
P2 P2
3
P3 P3
4
P4 P4
5
R2038
P5 P5 0R BL ON/OF F
6 VCC12V3
R2039
P6 P6 0R DI M
7
P7 P7
8
P8 STBY
9
P9
10
J 2001
P10
11
P11 SWJ
12
P12 SWJ VCC5V3
13
P13
J 2002
14
P14
To MAINBOARD
HV
4
OVP
Latch
OTP
Protection
Line Voltage
OLP for ML
Sample Circuit
Brownout Protection
HV
V Adjustment
Limit
Start-up
OSC
Internal
VDD 7
BIAS
UVLO
Green
Mode
16,5V/9V
FAN6754
Debounce OVP
V
DD-OVP
RT 5
t
D-OTP1
Counter OTP
1,05V
t
D-OTP2 OLP
Counter
I
RT
0,7V
1
GND
!
220pF 250V
C2056
ZD2001
2
DI156S
DB2001
1
C2014
C2023
82uF 450V
IC2001
1
GND
FB 2
FB
3
NC2
NC SENSE
D2007
R2008 R2012 R2015 R2017
4
HV
68K %1 82K %1 82K %1 82K %1
UF1010G
FAN6754
C2055
220pF 250V
!
NC
3
Re-start
OLP for MR
Protection
Soft
Driver
8 GATE
S Q
R
1
Mode: Standby
Soft-start
Comparator
Soft-start
Circuit
Current Limit 6 SENSE
Blanking
Comparator
V
Limit
PWM
5V
Comparator
Slope Comp.
2 FB
3R
R
OLP
Delay
4,6V
OLP
Comparator
1
3
2
3 NC1
L2003 Pri_VCC 1
10uH
22V
120R/100Mhz 3A
D2002
100R
R2011 BAV99 FB2002
3
2
D2004
D2005
UF4006
1
C2013 SW
3
22uF 25V
2
100nF
VDD 1
Pri_VCC
BAT54C T2001
R2018
8 1
TK8A65
GATE
0R
R2019 C2022
R2020
7
4 0R 100pF 1kV
VDD
47K %1
R2021
6
CS
100R
5
RT
ZD2002
R2022
R2023 DIODE
C2024
1R
100R
1nF
HEATSINK_2PIN
* HS2003 HS2001
2
Mode: Standby
3
2
! * C2001 C2002
C2003 12VAC
220pF 250V *
TR2001
30100CT
SMTTRAFO _ ETD29/16/10
R2004
1
*
! 1
+12V3
2
11
12 3
D2001 C2008
C2010
680uF 25V
1uF
30100CT
J 2013
6 7 1
+5V3
8
2
3
R2016 C2015 C2016
4
*
D2006
680uF 1uF
* C2019 C2021
25V
9
*
10
3
120R/100Mhz 3A
2 1
C2025
F B2001
220pF 250V
!
!
HEATSINK_2PIN
HS2002
+5V3
!
R2025 IC2002
+5V3 4 1
FB
0R
3 2
BAV99
+5V3
C2026
100nF
IC2003
TL431A
D2003
C2009
FOD817C
220nF
Output Regulation Block
MH2001 MH2002 MH2003
J2004 TP46
5204 5204 5204
TP48
J2005
4
VCC12V3
L2002
10uH
C2007 C2011
R2037
*
220uF 25V 1uF
J 2021 J 2022
VCC5V3
L2005
4.7uH
*
C2017 C2018
R2036
680uF 25V
1uF
VCC12V3 VCC5V3
J2016
R2024
1.2K
R2026
1K2
C2027
R2029
15k %1
220nF
J 2003
2
R2030
560k
R2031
10k %1
MH2004
TP47
5204
TP49