GRUNDIG Service
Chassis KY
2 - 11
C151
1uF
16V
R146
22K
TCON_ON
PANEL-VCC
VCC3V3-ST
Hi: Off
Lo: On
1
3
2 T101
PMV65XP
C150
NC
TP29
2
1
6
T104B
BC847BDW1T1
1
3
5
7
2
4
6
8
R150
22K
TCON_ON
5
4
3
T104A
BC847BDW1T1
VCC_PANEL
1
3
2 T102
NC
2.7K
R125
15.4K
R123
R121
0R
VCC12V
VCC
4
GND
1
RST
2
MR
3
IC106
APX812-29UG-7
POWER_DROP POWER_DROP
+5V_USB
C109
10uF 6.3V
C110
NC
TP3
VCC12V
+5V_USB
C115
1uF 6V3
C114
47nF
60R 3A
L101
1.5UH
L103
C101
100nF
Ic=3500mA max
VFB
1
VREG5
2
SS
3
GND
4
PG
5
EN
6
PGND1
7
PGND2
8
SW1
9
SW2
10
SW3
11
VBST
12
VIN1
13
VIN2
14
VCC
15
VO
16
EPAD
17
IC101
TPS54426RSAR
C102
10uF 35V
C108
10uF 6.3V
R110
2.7K %1
R106
15.4K %1
R111 100R
R103
4.7K
R122
NC
R120
NC
VCC_AUDIO
TP4
TP13
VCC1V25
VCC1V25
C117
NC
TP6
450mA
VCC3V3-ST
VCC3V3_FE
C119
1uF
VCC5V
+5V2_ST
Vout
1
GND
2
CE
3
Vin
4
EP
AD
5
IC108
XC8102AA01GR-G
C137
100nF
C136
100nF
VCC5V
20mA
TP17
C140
10uF 6.3V
C141
100nF
VBIAS
1
VSS
2
VIN
3
VOUT
4
NC
5
CE
6
GN
D
7
IC110
XC6602A131ER-G
VCC1V5
C142
1uF 6.3V
Ic=400mA
VCC3V3
150mW
C145
100nF
TP20
TP21
R130
1K
1
3
5
7
2
4
6
8
R152
1K
VCC5V
C111
1nF
60R
3A
L109
R124
NC
POWER_SENSE POWER_SENSE
R156
1K
R154
100K
R157
10K
R155
10K
VCC12V
1
3
5
7
2
4
6
8
R158
NC/10K
+5V2_ST
C158
NC/10nF
R159
NC
FRC_TCON_ON
FRC_TCON_ON
R160
0R
C159
NC
PWR_SW3
PWR_SW3
R109
4.7K
T2 DEMOD CORE POWER
C168
10uF 6.3V
C169
100nF
VBIAS
1
VSS
2
VIN
3
VOUT
4
NC
5
CE
6
GN
D
7
IC113
XC6602A121ER-G
VCC1V5
C170
1uF 6.3V
Ic=400mA
VCC3V3
150mW
C171
100nF
TP19
1
3
5
7
2
4
6
8
R166
1K
MCP_VDDC
+5V2_ST
MR_SOC
PD
3
1
2
D105
R171
1.2K %1
1
3
2
T1
BC847B
R1
69
2.
7K
%1
R1
67 470
R
R168
10K
1
3
5
7
2
4
6
8
R170
10K
3
1
2
D103
BAT54CW
1
3
2
IC114
AP432SRG-7
3
1
2
D104
BAT54CW
MR_SOC
PD
4.7UF
C172
RES_AU
RES_AU
4A
L116
UHD FARKI
VCC3V3
TP12
VCC3V3_FE
OUT
1
GN
D
2
FLT
3
EN
4
IN
5
IC102
TPS2530
VCC3V3
C138
1uF
VCC3V3-ST
VCC3V3
C139
NC/100n
TP18
OUT
1
GN
D
2
FLT
3
EN
4
IN
5
IC109
TPS2530
R132
1K
200mA
PG2
R115
1K
PWR_SW3
5
Chassisplatte – Netzteil / Chassis Board – Power Supply
SW
VBST
EN
VO
VFB
GND
PGND
4
6
9
10
11
1
2
7
12
VIN1
SS
VREG5
EN
Logic
UV
OV
Protection
Logic
Ref
SS
UV
OV
UVLO
UVLO
Softstart
SS
REF
TSD
Ref
VREG5
5
PG
13
8
VCC
3
VIN2
+20%
-10%
Ref
VREG5
Control logic
1 shot
XCON
-35%
OCP
SW
PGND
ZC
SW
PGND
14
VREG5
TPS54426
Charge
Pump
Driver
UVLO
Current
Limit
Thermal
Sense
8-ms
Deglitch
IN
GND
OUT
Current
Sense
OTSD
EN
FLT
TPS2530
CS
APX811/812
Vcc
RESET
MR
Vref
Delay
Circuit
Driver
XC8102
each
circuit
ON/OFF
Control
GATE
CONTROL
Current
Limit
VIN
VSS
VOUT
CE
Rdischg
CE/
XC6602
Soft Start
only A-type
CE
CE
CE
+
–
ON/OFF
Control
Volt.
Ref.
Error
Amp
Under Volt.
Lock Out
Thermal
Shutdown
Curr.
Limit
V
IN
V
BIAS
V
OUT
V
SS
CE
5
