Grundig 22 XLE 3220 BA Service Manual page 46

GRUNDIG Service
Netzteil / Power Supply VTC194-22
IC201
Vin 6
Vin VI N
10uF
4
C202 PVI N
5
PVI N
4R7
13
100nF
BOOT
R208
C205
11
PH
12
PH
TPS54521RHL
Vout
Vout
22uF 22uF
C206 C207
+12V3
!
S2601
F2601
PWR
1 1 1 1
GND
2 2 2
T6,3A/250V
C2601 C2603
GND
3 3 3
D2602
1uF
STPS340
DS-216
DC Jack
GND
R2405
STBY
10K
J2401
24V
S2401
1
BZZD2402X84C12V
P1 P1
2
P2 P2
3
3
P3 P3
4
P4 P4
5
P5 P5
6
P6 P6
7
P7 P7
24V
8
P8
9
P9
10
P10
11
P11
12
P12 BL ON/OFF
13
P13 DIM
14 R2413
P14
0R
CON14
J2215
+12V3
C2218
J2214
100uF
R2221
25V
100R
C2206
100n/50V
C2211
19
VDD VDD
100n/50V
R2208
C2213
R
CAP
C2216 2
COMP COMP
CAP
R2211
1
R FBP FBP
R2222
R2212
3
R R FSW FSW
R2216
R2224
4
R R ISET ISET
R2217
BL ON/OFF
2.2K
C2217 5
EN EN
CAP
R2219
2.2K
6
PWM PWM
R2220
10K%1
IC2201
DIM
TPS61199
R2218
2.2K
Vout Vin
C201
R201
56K
33pF
7
VSENSE
14
PGOOD R202 R203
10K 220K
9 C203
SS
SS/TR
22nF
1
RT/CL K
R204
10 22K
EN
8
COMP
R206
560R
C208 100pF
C210
R205
22nF
*
C204 27K
BAV99
12VAC 1
3
*
2
R2601
C2602 D2601
1uF
+5V3
GND
J2601 J2602
J2603
C2605 C2604
S2602
1uF
1uF DC_DC
680uF
25V
To DC/DC Module
D2401
R2406 R2407
10K
22K
ES1D
R2408
4,7K
T2402
TRN SMD
R2409
220R
2
C2410
R2417
100n/50V
1
2.2K/1%
C2411
10uF/50V
R2414
3
FB FB
68K
R2418
2
COMP /RUN COMP /RUN
22k
MP3900
Signal Stage
SGND
5 6
C/50V
C2202
J2203
C2203 SWJ
C2204
C2205
100uF 10uF/50V 100n/50V
25V
L2202 L2201
BZX84C12V
10uH
2
3
D2202
1
R2206 R2205
17
GDRV GDRV
10R
R2207
10R
R2209
16 10K/1%
ISNS ISNS
100R 1%
C2215
R2210
15 220p/50V
GND GND
0.04R
J2202
20
OVP OVP
14
IFB1
IFB1 IFB1
12 IFB2
IFB3 IFB3
13
IFB3
IFB2 IFB2
11
IFB4
IFB4 IFB4
7 IFB5
IFB8 IFB8
9
IFB6
IFB6 IFB6
8 IFB7
IFB7 IFB7
10 IFB8
IFB5 IFB5
Vin Vac Vout
TPS54521
S201
DC_DC
UV
OV
ERROR
AMPLIFIER
VSENSE
Q201
1
Vac
SS/TR
* 100K
R207
C209
Voltage
Reference
Hiccup
Shutdown
COMP/RUN
R2401
?
R2402 R2403
1
0R 0R
+12V3
L2401
3
10uH/7A
T2401
BC807-40
FB2402
FB
5
ZD2401
BZX84C12V BZX84C12V
2 2
R2410
3 3
1 1
10R
D2404
IC2401
J2414 T2403
R2416
8 4 FDS8778
GATE GAT E
10R
R2415
R2419
5 10K/1%
ISENSE ISENSE
2.2K/1%
R2421
0.04R
7
C2201
D2201
C/50V
1
2
R
R
R2203 R2201
3
R R
VLED
R2204 R2202
BA T54C
D2203
SB560
220p/50V
C2212
220p/50V
C2214
J2201
S2201 S2202
R2214 R2215
3 3
P3 P3
4 4
82K/1% 82K/1% P4 P4
1 2
P1 P1
2 1
P2 P2
5 5
P5 P5
6 6
IFB1 IFB3 IFB5 IFB7
P6 P6
CON6 CON6
R2227 R2228
0R 0R
R2230 R2231 R2232 R2233
0R 0R 0R 0R
IFB2 IFB4 IFB6 IFB8
R2234 R2235 R2225 R2226
0R 0R 0R 0R
2 - 32
PWRGD
EN
Thermal
UVLO
Shutdown
Shutdown
Ip Ih
Enable
Comparator
Shutdown
Logic
Logic
Enable
Threshold
Hiccup
Shutdown
Shutdown
Minimum Clamp
Pulse Skip
Boot
UVLO
Power Stage
& Deadtime
HS MOSFET
Control
Current
Logic
Comparator
Slope
Compensation
Reg.
VIN
Oscillator LS MOSFET
Overload Recovery
with PLL Current Limit
and Clamp
COMP RT/CLK Exposed Thermal Pad
Internal
Slope
Bias
Enable
Oscillator
Compensation
Vref = 0.8V
Turn
Off
EA
+
+
I
TRP
--
FB --
Gates
Off
I
MP3900
MAX
Clamp
SGND
EA Translator
C2401
100n/50V
24V
FB2401
4
C2405
C2404
C2402
D2402 100n
10uF/50V 100uF
STPS5H100
50V
25V
6
7
Power Stage
VIN
VDD
VDD LDO
PWM
Logic
Oscillator
and
FSW Slope
Compensation
COMP
Protection
OVP
Protection
EA
Ref
OVP
EN Shutdown
FBP
ISET
ISET
PWM
TPS61199
C2210
220n/50V
S2205 S2203
3 2
P3 P3 P P 3 3 P3 P2 P2
4 4
P4 P4 P4 P P 4 4 P4 P4
6 3
P2 P2 P P 6 6 P6 P3 P3
5 1
P1 P1 P5 P5 P1 P1
2 5
P5 P5 P2 P P 2 2 P5 P5
1 6
P6 P6 P1 P1 P6 6
CON6 CON6
S2204
1
P1 P1
2
P2 P2
LG-PANEL
Chassis U2
VIN PVIN
Boot
Charge
Current
Sense
BOOT
PH
PH
Current
Sense
GND
GND
V
CC
Driver
GATE
S Q
R Q
PGND
ISENSE
D2403
UF4006
VDD
GDRV
ISNS
OC
160mV
8
IFBs
Selection
IFB1
EN
Current Sink
GND
IFB2
Current Sinks
IFB8