Inhaltsverzeichnis
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GRUNDIG Service
Display-Platte – Netzteil / Display Board – Power Supply
LP1
22UH
+5V
RP6
1K
EL7630
1
1
5
5
CP5
2
2
4
4
1uF
3
3
D1
ICP1
3
CP8
1
2
1uF
DA204
RP12
RP14
L7
V CC _M
47UH
CP24
10U/25V
RP17
1.5K
Vin
Vin
Enable
Enable
1.2MHz Oscillator and Ramp
1.2MHz Oscillator and Ramp
Generator
Generator
PWM
PWM
PWM Logic
PWM Logic
FET
FET
Comparator
Comparator
Controller
Controller
Driver
Driver
Current
Current
Sense
Sense
GM
GM
Amplifier
Amplifier
GM Amp
GM Amp
95mV
95mV
Compensation
Compensation
(shared with PGND
(shared with PGND
in TSOT5 package) GND
in TSOT5 package) GND
Display-Platte – Inverter / Display Board – Inverter
P 1
LH1
VC C _ M
C H8
R H1
V IN
47UH
10U/25V
1K
C RH3
C RH4
5.6V
R H3
13V
OPE N
R H2
10K
C H1
0.01U
R 22
R H4
1K
47K
P 2
G ND
VDD33
R 28
10K
B L_EN
QH1
R 27
4.7k
3904
VC C _ M
VC C _ M
B L_EN
B L_EN
VDD33
VDD33
3
RP21
1k
CP20
2
1
4.7uF/25V
1uF
D2 DA204
S85
CP1
RP8
LP10 10UH
DP1
0.1uF
CP2
30K
4.7uF/25V
RP10
4.3K
LP11 10UH
CP10
CP11
0.1uF
4.7uF/25V
RP11
0.5
U2
390
RP13
220
8
1
0.5
7
2
ss6615
6
3
RP15
CP23
51
5
4
100P
RP16
8.2K
RP18
10K
EL7630
EL7630
LX
LX
PGND
PGND
FB
FB
Bandgap
Bandgap
Reference
Reference
Generator
Generator
C H2
1UF
U3
DIM
1
20
IL
2
19
3
18
R EF
4
17
5
16
104*5R/10V
C H5
C H3
6
15
1U
7
14
C H6
105*5R/16V
8
13
9
12
C H7
10
11
103*7R/25V
MP1029
R H5
4.7K
R EF
C RH2 1N4148
C RH1 1N4148
V GH
V GH
LP21
10UH
CP21
CP22
V GL
0.1uF
AVDD
DP2
OPEN
CP3
CP4
0.1U
4.7uF/25V
V GL
DP3
OPEN
CP12
CP13
0.1U
4.7uF/25V
Q1
MOSFET P 338
L8
+5V
47UH
DP8
CP25
SS14
47U/16V
R H6
330K
R EF
IS
C H10
0.01U
LV
R 30 R
C H11 1U
C H12
0.01U
C H13
1U
C H4
105*5R/16V
R EF
C H9
103*7R/25V
R H10
0
2 -
V GH
4.7U
V GL
4.7U
ICP2
LP4
+5V
1
3
1117-33
1UH
4.7U
CP6
CP7
0.1U
10U/16V
CP9
47U/16V
D8
V CC
4.7U
4148
CP14
CP15
0.1U
10U/16V
AVDD33
V DD25
V DD33
V CC
AVDD
+5V
B L_EN
V CC _M
J1
13
V CC _M
G ND
12
11
B L_EN
+5V
10
9
G ND
IR
8
IR
7
IR
6
IR
5
IR
4
IR
3
2
IR
IR
1
CON26_0
T 1
C H14
105*7R/16V
1
8
C H15
N.A
2
7
3
4
R H8
1K
5
6
9
T R9_2
C H18
OPE N
C H17
C H16
R H9
N.A
0
0
DVD-P 8600...
LP2
V CC
AVDD33
LP3
V DD33
LP5
V DD25
LP6
AVDD33
V DD25
V DD33
V CC
AVDD
+5V
B L_EN
V CC _M
IL
R H11
510
P 3
R TN
R H12
R H13
N.A
270
P 4
HV
C H19
10PF /C 0G /3KV
LV
C H20
472*7R/16V
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