Grundig DVD-P 8600, Руководство по обслуживанию

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Hauptplatte – Netzteil / Main-Board – Power Supply
VCC3
IR
R1 0
47K
L17
FB / 0805
R2 7
10K
Q2
2307
1
2 3
D14
1N4148
GND
+33V
R131
10K
QP 2
UT CLD1117/ NC/TO-252
1
3 2
AD
J
IN OUT
BC20
0.1uF
GND
C470 .22uF
D1
1N4148
R130
30K
EC 21
47uF/16V
VC C3 [2,3,4]
RP 2
4.7k
DI
SC
HA
R
CHAR GE _L ED
ON SW
DC
VCC3
U8
1410
1
2
3
4 5
6
7
8
BS
Vin
Vs w
GNDF B
Comp
EN
Sy nc
ON SW
UR ST O# [2]
Q4
3904
1
3
2
L2 FB / 0805
EC 24
100u F/16V
+5V
DISC HAR [5]
DC_IN [2]
GND
GND
DV D_O FF
J1
DC JACK(+9V ~+12V
1
2
3
GND
GND
CHAR
LE D1
1 2 3
DC_IN
OV ER
GND
DC_IN
GND
9V _IN
RP 5
150R
DC_IN
L19F B / 0805
+18V
+18V
GND
C46
0.01uF
DISC HAR
9V _M ONITOR
BC11
0.1uF
R128
27k
EC 23
47uF/16V
CH_IN
DC_IN
R1 5
10k
GND
C45
0.01uF
R129
10K
DC_IN
BC10
0.1uF
EC 26
47uF/16V
EC 5
100u F/16V 2
1
CHAR GE _L ED
[5]
CH
AR
CH_IN
+33V
VC C3 [2,3,4]
R136
10K
Q27
3904
1
3
2
D13
1N4148
GND
VCC3
IR
2
R2 0
18K
9V _IN
R134
100K
R7
10K
GND
ON SW [2]
+5V
L16 22uH/1.2A(SMD6)
RP 4
270R
L1 22uH/1.2A(SMD6)
9V _IN [2,3]
DC
9V _IN
R1 2
100k
R127
47k
GND
ON SW
CP 1
0.1uF
U7
1410
1
2
3
4 5
6
7
8
BS
Vin
Vs w
GNDF B
Comp
EN
Sy nc
R125
200K
BC21
0.1uF
RP 1
NC
Q6
3904
1
3
2
R135
10K
EC 25
47uF/16V
R1 6
1.5K
C48
0.01uF
UR ST O#
ON SW
C43
0.01uF
DV D_O FF
RB 1
4.7K
GND
CHAR [5]
EC 27
47uF/16V
VCC3
+5V
GND
R1 9
30K
R1 14 .7K
Q5
SI2307
1
2 3
EC 20
47uF/16V
+5VC ON20/SMT/A
ON SW
Q8
3904
1
3
2
+33V [2,4]
R132
10K
GND
QP 1
3904
1
3
2
GND
+18V [2]
RP 3
10k
L18 22uH/1.2A(SMD6)
U9
1410
1
2
3
4 5
6
7
8
BS
Vin
Vs w
GNDF B
Comp
EN
Sy nc
BC8
0.1uF
GND
D5
SS1 4
1 2
GND
GND
R126
200K
LP
1.8V Power for DSP Kernel
1
FB / 0805
C190 .22uF
Q26
2307
1
2 3
BC9
0.1uF
F1
2A_F US E
L4
FB
VCC3
C6
0.01uF
IR [2,3]
9V _M ONITOR
9V _M ONITOR
Q7
3904
1
3
2
GND
DV D_O FF
OV ER
R8
10K
DV D_O FF
C440 .22uF
R1 34 .7K
R1 4
4.7K
+18V
VCC3
CHAR GE _L ED
DC
DP 1
15v
1
2
EC 22
100u F/16V
C8
0.01uF
R6
100K
MP1410
Σ
40/400KHz
Oscillator
Slope
Compensation
1.8V
Current
Comparator
Internal
Regulators
2
1uA
2.30/2.53V
0.7V
7
Shutdown
Comparator
Lockout
Comparator
3
4
M2
M1
6
1.22V
5
Error Amplifier
gm= 630uA/Volt
IN
EN
COMP
FB
GND
SW
BS
1
0.7V
Frequency
Foldback
Comparator
5V
CLK
S
R
Q
Q
Current
Sense
Amplifier
GR
UNDIG Ser
vice
D
VD-P 8600…
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