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Bedien-/Netzteil-/Inverterplatte / Keyboard Control/Power Supply/Inverter Board XKU194-03
J338
J309
Jumper
Jumper
BL ON/OFF
BL ON/OF F
R301
10K
C304
10nF
REF
C309
R306
R305
1u
0
J302
R308
56k
DIM
DI M
Jumper
R309
22K
C312
22K
C314
10nF
4.7nF
REF
OLP
Q300
BC847B
C319
1uF
+12V_I NV
C300
1nF
RT
R300
82K
J306
Jumper
IC304
L309
1
20
FB_3A
OLP
RT1
2
19
OLR
OUTB
3
18
ENA
OUTA
4
17
C306
OUTB
S_S
VI N
0.22uF
1uF
C305
5
16
GND
PGND
R304
REF
6
15
REF
OUTC
7
14
10K
OUTA
ADI M
OUTD
8
13
C311
BDI M
CT
220pF
9
12
EA_I N
RT
R311
27K
10
11
C315
EA_OUT
BCT
4.7nF
FAN7314
RT
R312
R313
J310
FB
Jumper
100K
10K
R314
9K1
19
18
J311
OLR
Jumper
R315
C316
100K
??
104338R
R316
OLP1
OLP2
330K
R317
R318
D305
10K
10K
1
1
3
3
2
2
D307
C321
C322
BAW56
2.2nF
2.2nF
BAW56
&
*
TR301
1
12
2
11
IC305
C302
3
10
*
4
9
1
8
S1
D1
5
8
2
7
G1
D1
6
7
C307
10uF
X5Y
SMTTRAF O _ ETD29/16/10
3
6
D302
S2
D2
17
4
5
G2
D2
OLR
3
FDS8958A
BAV70
(
S306
1
2
WARNI NG
LAMP2
C303
12pF
OLP1
OLP2
C308
D300
D301
12pF
BAV99
BAV99
R302
1K
1
R307
C310
1K
10nF
2
R310
C313
1K
10nF
GND1
GND1 GND1
FB
GND1 GND1
R336
0R
GND1
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
Q
SET
S
ADIM
+
Error Amp.
UVLO
Q
R
CLR
EA_IN
-
2.4V
S
S
105µA
olr
olr
S
85µA
2.5V
burst
Voltage
REF
max. 2V
V
+α
a
Reference
&
Internal
min. 0.5V
BCT
-
Bias
S
burst
BDIM
+
V
IN
+
AGND
UVLO
FAN7314
-
S305
1
2
WARNI NG
LAMP1
R303
1K
OUTA
Output
Driver
OUTB
PGND
OUTC
Output
Driver
OUTD
1.4µA
+
OLP
V
+α
OLP
-
V
OLP
2.5V 1.5V
+
OLR
-
2V
REF
+
ENA
1.4V
-
V
IN
UVLO 5V
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