Main Circuit Diagram - Grundig DAVIO 37 P 37-2201 Service Manual

Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
Hauptschaltplan / Main Circuit Diagram
Kennzeichen für Chip-Bauteil
Mark of chip components
STAND_BY
TXT
C401
CVBS_TXT
220n
GR
R476
3.3V
non-GR
R410 R408
R409 0R
1.5k
1.5k
680R
R412
SW403 SW402 SW401
R478 4.7k C404
R411 47n
4.7k
0R
non-GR
R477 1.5k
R413
GR
STATUS
AFT 1k
BCL
CABEL7B BC848B
3.3V
T417
R484
R414 10k
10k 3.3V
R485
T402
C431
C410 BC848 10k
47n
R415 R418
H_SYNC 3.3V
10k
R417
1n
15k
BC848B
33k
T403
R416 R486 T418
BC848
6.8k
CABEL6A
1k
1k
R422 R403
V_SYNC
1k
R487
0R
DE_INTERLACE
12.5V 3.3V
R482
R425
150R
T404 ***
BC848
R427 ZD401
***
P3
C414
10k
10n
R431
P1
100R
R433 T405
X401 5
BC848
P2
IC403
10k TSOP1838
4
C417
10n
3
2
R440
R439
1
220R
15k
MULTIMEDIA
T406
BC848
X404
5
KEY
3.3V
4
3
IR
2
1
LED
KEYBOARD
SEITE / PAGE 3-2
3 - 9
C419
4.7u/16V
3.3V
R445
10k
R401
IC401
3.3k
1 52
STAND_BY VOLUME
3.3V
2 51
D401
LED
3 50
T401 12.6
LED BC858
R404
4 49
LED SDA0
R405 10k
1k
5 48
SCL0
R406
270R LNF
R449
6 47 0R
LNF
7 46
RGB_SEL
MM
3.3V
R452
8 45
MM
D402
VDD_2.5V 0R
1N4148 VDD_3.3V
L401
9 44
VDD_2.5V VDD_3.3V
10uH C421
C402 C403
R407 47n
47u/16V 47n
1M
10 43 T411
VSS VSS
3.3V BC858
L402 VDD_2.5V
VDD_3.3V
10uH
C422
1 1 42
VDD_3.3V VDD_2.5V
C406 47n
C405
VDD_2.5V'
47n
47u/16V
R455
41
12
R456
CVBS FBL_OSD
100R
3.3V VDD_2.5V' 330R
D404
L403 R458
40
13
1N4148
VDDA_2.5V B_OSD
10uH
C408 100R
D403
C409
47n R459
1N4148 C407 39
14
47u/16V VSSA G_OSD
10n
100R
R460
38
15
KEY R_OSD
100R
VDD_2.5V'
R481
16 37
R402
STATUS VDDA_2.5V
C423
0R JUMPER
9V C411 47n
1k
R419
22n 17 36
AFT VSSA
R421 C424
10k C412
R420
33k
47n
33p
2.2k
D409 18 35
POWER_CTRL XTAL1
1N4148
Q401
CABEL6B R423 6MHz
19 34
H_SYNC XTAL2
C425
1k
33p
C413
20 33
V_SYNC RESET
220p
C426
R424 10u/16V
21 32
ODD/EVEN AV/TV
220R
R428
22 31 3.3V
TV/INT L/L'
VDD_3.3V
3.3V 100R
C415 R429
R467
23 30
47u/16V ON_LINE VDD_3.3V 4.7k
R483
100R C427
2.7k
47n
R432
24 29
IR VSS
470R
C416
R434 R469
220p 28
25
***
AV_SEL SCL1
100R
3.3V
27 R470
26
SERVICE SDA1
C418 100R
C430
R471
100p SDA5552
4.7k
R437 2.2n
47k X402
SERVICE
4
3 T416
R441
4.7k BC848
T407
R443
2
BC848
1k
1
SERVICE
GRUNDIG Service
Chassis 12.6 Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
9V
R113
10k
R112
4.7k
R109
4.7k
R444
L/L'
15k
non-L = 0 R
C170 T102
470P BC848 JUMPER
TU101 TUNER
* Spannungen sind ca.-Werte gemessen ohne Signal
* Voltages are approximates measured without signal
IC402
5 4
SDA GND
4,6V*
6 3
SCL E2
7 2
MODE_WC E1
VDD_3.3V
8 1
VCC E0
24C04
R103
Secam L only 15k
D101
9V 9V
R453
1N4148
330R
R105
C101
T410
10u/16V
BC858 L = 12k
non L = 0 R
D408
CABEL4A
RGP10J
R457 D405 R479
680R
1N4148 0R JUMPER
33V
SCL
SK201
3.3V 3.3V
SDA
SCART
R464 R488
8.2k 2.7k
Audio GND
R465
R214
0R LL'
100R R466
15k
5V
1k R202 R201
LL' 3.9k
R468
4.7k
T415 ***
BC848
D406 C428
R203
100p
82R
R204
5V 82R
C429
R205
100p
R472 82R
4.7k
R206
82R
D407
1N4148
3 - 10
9V"
L102
10uH
9V
R115 R116
4.7k 4.7k
D102
1
C107
4.7n BA682
R117
F101 D103
2.2k
40.4MHz 2
BA682
C106
68p R118
22k
R119 T104
T105
BC848
BC848
T103
4.7k
BC848
R120
10k
15
GND4
14
GND3
13
GND2
12
GND1
C168
R101 5V
C169
***
220R ***
R102
C104 L105
L101
4.7u/63V
10uH 1uH
220R
DK
C102 C103 R104
47n 100u/10V 1k
R106
100k
T101
R107
CABEL8A BC848
10k
R108
D106 10k
1N4148 CABEL8B
D410
D41 1
1N4148
D412
1N4148
9V
1N4148
R218
LL'=390R %1
0R
L L '
T202
R220
R219
non-L BC848
0R
R221 1k
9V
0R R222
C207
LL' = 220R
R207
47u/16V
LL'
680R
560R R209 R223
R208 560R LL'=270R
100R C202 9V
1n
560R C201 X 2 0 1
FR_AV
L'L = 220R 1n AV_SEL
5
R225
R210 R21 1
NON-FR.AV
4
33k
C210
C208 T203
1k 15k 220P
C204 R224 3 BC848
C203
470p 0R
2 2 0 p
2 10u/16V
R212 R213
9V
R242
R226 R227
1
33k
1k 15k C209
2.2k
0R
C206 220p
C205
FRONT_AV_1
JUMPER
220p 470p CABEL9A
ZU / TO X10
9V SEITE / PAGE 3-14
T201
R215 BC848
68R
X202
2 CABEL1A CABEL1B
R233
R216
2.2k
1
FRONT_AV_2
ZU / TO X11
R217
SEITE / PAGE 3-14
75R
R230
390R
R231
390R
R232
390R
T204
BC848B
Chassis 12.6
R114
100R
F102 K9456M
4
5
IC103 TDA9380
1 16
IF_IN IF_IN
2 15
NC NC
3 14
C_AGC V_P1
4 13
C_REF GND
C108
5 12
4.7u/16V
NC MUTE
C109 6 1 1
AM_OUT V_P2
4.7u/16V
7 10
AM_IN SWITCH
8 9
CABEL12
AF_OUT EXT_IN
CABEL11
C110
CABEL10 100n
R236
560R
R237
220R
RGB=470R
I
R234 R235
1k
1k 1k
OPTIO
R241
CA
T205
R240 10k
BC848B 10k
R239 FR_A
R229 10k
T206
BC848B
10k CA
R238
R243
R228
10k
10k
0R JUMPER
GRUNDIG Service