Grundig davio GBF6300 Service Manual page 28

Netzteil-/Inverterplatte / Power Supply/Inverter Board XKV194-04
R2052
BL ON/OFF
BL ON/OFF
10K
C2056
10nF
R2056
56k
J2017 R2059
DI M
DI M
Jumper
27K
C2062
10nF
R2060
16.9K %1
C2066
1uF
OL P
T2050
BC848B
C2068
1uF
J2024
Jumper
18
J2049
C2050
Jumper
OL R
1nF
R2050
C2051
100K
1nF
RT
R2051
J2035
Jumper
82K
L2050
IC2050
68R / 100 Mhz
1 20
OL P RT1
2 19
OL R OUTB
3 18
ENA OUTA
C2057 220n 4 17 C2058
S_S VI N
1uF
5 16
GND PGND
REF 6 15
REF OUTC
7 14
ADI M OUTD
8 13 C2061
BDI M CT
220pF
9 12
R2061
EA_I N RT
C2064
27K
10 11 C2065 4.7nF
EA_OUT BCT
FAN7314
4.7nF
RT
J2037
Jumper
R2063 R2064
FB
100K 10K
R2085 R2065
19
9K1 9K1
R2066
OL P1 OL P2
330K
R2067 R2068
J2038 D2053
10K 10K
Jumper
1
1
3
3
2
2
C2070 C2071
D2056
2.2nF 2.2nF
BAW56
BAW56
R2082
0R
R2074
D2058
R2073 10K
10K
2
2
3
3
1
1
C2074 C2075
2.2nF 2.2nF
BAW56
& *
+12V_INV
C2053
F2050
470uF 16V TR2050
0R 1
C2006
100nF 2
J2120
Jumper 3
J2032
Jumper
4
J2004
Jumper
IC2051 5
FDS8958A
C2054 6
10uF
X5Y SMTTRAF O _ ETD29/16/10
1 8 17
S1 D1
D2052
OUTB 2 7
G1 D1
C2077
3
R2053
*
OL R
10K
3 6
S2 D2
OUTA 4 5
G2 D2
BAV70
TR2051
1
1 8 2
S1 D1
2 7 C2078 3
G1 D1
*
4
3 6 5
S2 D2
J2021 J2022
4 5 C2052 6
G2 D2
Jumper Jumper 10uF
IC2052 SMTTRAF O _ ETD29/16/10
FDS8958A
17
D2057
3
OL R
18
BAV70
OL P3
OL P4
(
12
11
10
9
8
7
C2059
C2055 12pF
12pF
OL P1
2 J2026
Jumper
D2050
R2058
C2060
BAV99
1K
10F
1
R2054
R2062
1K
C2063
1K
10nF
12
FB
11
10
9
8
7
C2067
12pF
OL P3
2
C2069 D2054
R2071 12pF BAV99
C2072
1K
10nF R2069
1
1K
R2072
C2073
J2042 Jumper 1K
Jumper
10nF
J2043
FB
RT OSCILLATOR
max. 2V
min. 0.5V
Output
CT -
Control
+
Logic
6µA
+
S_S
2.65V
M
RT1
RT1
OLP
Striking
Logic
S_S
EA_OUT
UVLO
ADIM + Error Amp.
EA_IN -
2.4V
S 105µA
olr
S 85µA
burst
Voltage
max. 2V V +α
a Reference
&
Internal
min. 0.5V
BCT -
Bias
S
burst
BDIM +
AGND UVLO
FAN7314
S2050
1
2 WARNING
S2051
1
WARNING
2
OL P2
D2051
BAV99
R2055
1K
S2052
1
2 WARNING
S2053
1
WARNING
2
OL P4
D2055
BAV99
R2070
1K
Jumper
J2046
OUTA
Output
Driver
OUTB
PGND
OUTC
Output
Driver
OUTD
1.4µA
+ OLP
V +α
Q SET S
OLP
- V
OLP
UVLO
Q R 2.5V 1.5V
CLR
+ OLR
S
olr
- 2V
2.5V
REF
REF
+ ENA
1.4V
-
V
IN
+ V
IN
UVLO 5V
-