Inhaltsverzeichnis
Werbung
Schaltpläne und Druckplattenabbildungen / Circuit Diagrams and Layout of PCBs
Gesamtschaltplan / General Circuit Diagram
Alle Spannungen gemessen ohne Eingangssignale
All voltages measured without aerial signals
SAT-Tuner mit LNB-Versorgung
SAT Tuner with LNB Supply
Q304
+21V
R301
TIP30A
1R3
+V/T
R302
R31 1
R312
Q306
4K7
270K
8K2
BC847
R303
R309
Q301
1K
680R
BC857
R307
10K
R304
R308
10K
1K
C301
Q305
100uF
Q302
BC847
25V
BC857
C302
C305
100nF
10nF
R305
Q303
4K7
BC847
Q308
BC847
C304
R310
R314
R306
C307
D301
10K
4n7F
680R
3K6
100nF
BZX79B6V8
CSYNC
+5V
+12V
D401
R412
R409
R458
R417
1N4148
C409
4K7
10K
1K
2K2
10uF
R414
270K
R415
R454
5
22K
Q402
R410
10K
270K
BC847
D407
1N4148
D408
1N4148
Q403
6
BC847
Q404
BC847
R457
R41 1
C408
R416
C452
R459
1uF
180K
180K
10nF
10K
56R
50V
Sync-Abtrennung / Sync Separator
SAT-Tuner mit LNB-Versorgung
SAT Tuner with LNB Supply
Q354
+21V
R351
TIP30A
1R3
+V/V
R352
R361
R362
Q356
4K7
270K
8K2
BC847
R353
R359
Q351
1K
680R
BC857
R357
10K
R354
R358
10K
1K
C351
Q355
100uF
Q352
BC847
25V
BC857
C352
C355
100nF
10nF
R355
Q353
4K7
BC847
Q358
BC847
R356
C354
R360
C357
R364
D351
10K
680R
100nF
3K6
4n7F
BZX79B6V8
3 - 3
+29V- Tuner
TUN100
LNB1
TBCE
8127INP
SAMSUNG
TBCE18127INP
17 18 19 20 21 22 23 24
+5V
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
R114
R115
4K7
4K7
LNBPOWER/T
FILT-VID/T
R109
R110
0R
470R
Q105
R1 11
L101
BC847
270R
4u7H
C415
C103
10nF
100pF
C306
Q104
100pF
BC857
R112
C104
100R
10uF
C102
16V
C101
2200uF
56pF
LK400
16V
R113
330R
10
R313
4K7
R316
18K
Q307
R315
BC847
4k7
R317
4K7
R430
560R
R528
470R
LEFT
3
16V
R529
470R
11
PL500
R461
DUAL-PHONO
RIGHT
2
100R
HSP-242V
C528
Q460
BC847
1
R460
2K2
R462
C453
C454
470pF
470R
100nF
+29V- Tuner
TUN150
LNB1
TBCE
8127INP
SAMSUNG
TBCE18127INP
+5V
17 18 19 20 21 22 23 24
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
LNBPOWER/V
FILT-VID/V
R160
R159
470R
0R
Q155
R161
L151
BC847
270R
4u7H
C915
C153
10nF
100pF
C356
Q154
100pF
BC857
R162
100R
C152
C151
2200uF
56pF
LK900
16V
C154
R163
10uF
330R
16V
10
R363
4K7
R366
18K
Q357
R365
BC847
4k7
R367
4K7
R930
560R
GRUNDIG Service
STR 6122 TWIN
Schaltpläne und Druckplattenabbildungen / Circuit Diagrams and Layout of PCBs
+12V
C401
R401
R403
220nF
27K
10K
C403
1nF
R402
R404
R405
1K5
3K3
51K
Q401
BC857
C402
C404
1n5F
1n5F
R466
5K1
R463
R465
C461
10K
15K
39pF
C460
10uF
16V
R426
5K1
+12V
R423
R425
C41 1
10K
1K5
+12V
100pF
C410
C445
C444
C459
10uF
10nF
100pF
16V
100uF
16V
R428
3K3
C413
R424
R422
10nF
470R
470R
L403
27uH
C422
C420
56pF
12pF
L401
L402
12uH
18uH
C412
C414
C419
C421
C423
R431
56pF
100pF
68pF
47pF
100nF
1K
+12V
C901
R901
R903
220nF
10K
27K
C529
1nF
1nF
C903
1nF
R904
R902
R905
1K5
3K3
51K
Q901
BC857
C902
C904
1n5F
1n5F
R966
5K1
C961
R963
R965
10K
15K
39pF
C960
10uF
16V
R926
5K1
+12V
R923
R925
C911
+12V
10K
1K5
100pF
C944
C959
C910
C945
100uF
100pF
10uF
10nF
16V
16V
R928
C913
3K3
R922
R924
10nF
470R
470R
L903
27uH
C920
C922
56pF
12pF
L901
L902
12uH
18uH
C921
R931
C919
C923
C912
C914
56pF
100pF
1K
47pF
100nF
68pF
3 - 4
Signalverarbeitung / Signal Processing
IC400
STV0056A
R406
1
56
3.6V
0V
1M
FC R
AGND R
2
55
PK IN R
2.4V
3.6V
FC L
3
54
C405
1.7V
2.3V
LEVEL R
PK IN L
100nF
4
53
1.6V
S1 VID RTN
LEVEL L
5
52
2.7V
3.4V
S3 VID RTN
PK OUT L
6
51
4.8V
3.4V
VOL R
PK OUT R
R418
100R
7
50
S3 VID OUT
1.6V
2.3V
I ref
R419
100R
8
49
CPUMPR/T
1.6V
4.8V
S1 VID OUT
CPUMP R
9
48
S2 VID OUT
2.2V
U75 R
10
47
4.8V
2.3V
VOL L
DET R
11
46
S2 VID RTN
2.6V
1.4V
AMPLK R
12
45
12V
S2 OUT L
A 12V
13
44
2.7V
2.4V
CLAMP IN
V ref
VREF/T
14
43
S2 OUT R
4.9V
0V
A GND L
15
42
3.7V
4.6V
UNCL DEEM
AGC R
16
41
VIDEEM2/T
VIDEEM2/22KHz
2.4V
1.3V
AMPLK L
17
40
12V
2.3V
V 12V
U75 L
18
39
VIDEEM1/T
VIDEEM1
2.5V
2.4V
DET L
19
38
CPUMPL/T
0V
4.8V
V GND
CPUMP L
20
37
B-BAND IN
2.5V
0V
GND 5V
21
36
4.7V
5V
S2 RTN L
Vdd 5V
22
35
4.7V
4.0V
S2 RTN R
XTL
23
34
FM IN
2.4V
2.6V
J17 L
24
33
4.7V
2.2V
S3 RTN L
J17 R
25
32
S3 RTN R
4.7V
5V
HA
26
31
4.6V
5V
AGC L
SDA
27
30
S3 OUT L
0V
5V
SCL
28
29
0V
2.5V
S3 OUT R
I/O/22KHz
C450
47pF
Signalverarbeitung / Signal Processing
IC900
STV0056A
R906
1
56
1M
3.6V
0V
FC R
AGND R
2
55
PK IN R
2.4V
2.5V
FC L
3
54
C905
1.7V
2.4V
LEVEL R
PK IN L
100nF
4
53
1.7V
S1 VID RTN
LEVEL L
5
52
S3 VID RTN
2.7V
2.4V
PK OUT L
6
51
1.5V
2.4V
VOL R
PK OUT R
R918
100R
7
50
S3 VID OUT
0.2V
2.4V
I ref
8
49
R919
100R
CPUMPR/V
1.2V
0.7V
S1 VID OUT
CPUMP R
9
48
S2 VID OUT
0V
2.3V
U75 R
10
47
1.5V
2.3V
VOL L
DET R
11
46
1.3V
S2 VID RTN
AMPLK R
12
45
0V
12V
S2 OUT L
A 12V
13
44
3.3V
2.3V
CLAMP IN
V ref
VREF/V
14
43
S2 OUT R
0V
0V
A GND L
15
42
3.7V
4.7V
UNCL DEEM
AGC R
16
41
VIDEEM2/V
VIDEEM2/22KHz
2.4V
1.3V
AMPLK L
17
40
12V
2.4V
V 12V
U75 L
18
39
VIDEEM1/V
VIDEEM1
2.5V
2.3V
DET L
19
38
CPUMPL/V
0V
4.8V
V GND
CPUMP L
20
37
2.5V
0V
B-BAND IN
GND 5V
21
36
S2 RTN L
5V
Vdd 5V
22
35
4.0V
S2 RTN R
XTL
23
34
FM IN
2.4V
2.4V
J17 L
24
33
4.7V
2.3V
S3 RTN L
J17 R
25
32
S3 RTN R
4.7V
0V
HA
26
31
4.7V
5V
AGC L
SDA
27
30
S3 OUT L
0V
5V
SCL
28
29
0V
0V
S3 OUT R
I/O/22KHz
C950
47pF
STR 6122 TWIN
C4
R433
220
27K
C4
1n
R434
R4
3K3
1K
R407
R408
51K
1M
C406
C407
1n5F
100nF
D410 BZT52CC8V2
C427
10uF
R436
C428
16V
47K5
100nF
+12V
D404
100uF
C447
BA V99
16V
C430
R439
2
3
2n7F
27K
D
C446
10nF
1
B
D41 1
BZT52CC8V2
+5V
C442
R442
C433
R443
100nF
560K
100nF
C436
560K
10uF
16V
C448
100uF
16V
C443
1nF
C440
C441
D
10nF
10nF
B
2
R450
R451
R452
R453
1
39K
4K7
39K
4K7
R448
220R
C451
47pF
R449
220R
C
R933
2
27K
C
R934
R
3K3
1
R907
R908
51K
1M
C906
C907
1n5F
100nF
D910
BZT52CC8V2
C927
10uF
R936
C928
16V
47K5
100nF
+12V
100uF
C947
D904
16V
BA V99
C930
R939
2
2n7F
27K
C946
10nF
1
D91 1
BZT52CC8V2
+5V
C942
R942
C933
R94
100nF
560K
100nF
560
C936
10uF
16V
C948
100uF
16V
C943
1nF
C940
C941
10nF
10nF
2
R950
R951
R952
R953
39K
4K7
39K
4K7
R948
220R
C951
47pF
R949
220R
GRUNDIG Service
Werbung
Inhaltsverzeichnis
