Schéma Général - Grundig DAVIO 37 P 37-2201 Service Manual

Circuit imprimés et schémas électriques / Layout of PCBs and Circuit Diagrams
Schéma général / Main Circuit Diagram
Marquage d`un composant a`puce
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
SW401
SW403 SW402
R478 4.7k C404
R411
47n
4.7k
0R
non-GR
R477 1.5k
GR R413
STATUS
AFT 1k
BCL
CABEL7B BC848B
3.3V
T417
R484
R414 10k
3.3V
10k
R485
T402 C431
10k
C410 BC848
47n
R418
R415
H_SYNC 3.3V
10k
1n R417
15k
BC848B
33k
T403
R416 R486 T418
BC848
6.8k
CABEL6A
1k
R403 1k
R422
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
PAGE 3-8
3 - 9
Châssis / Chassis 12.6
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
BC858
LED
R404
4 49
LED SDA0
10k
R405
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
C421
10uH
C402 C403
R407 47n
47u/16V 47n
1M
10 43 T411
VSS VSS
BC858
3.3V
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
330R
3.3V VDD_2.5V'
D404 L403
R458
40
1N4148 13
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
2.7k 100R C427
47n
R432
24 29
IR VSS
470R
C416
R434 R469
28
220p
25
***
AV_SEL SCL1
100R
3.3V
27 R470
26
SERVICE SDA1
C418
100R
C430
R471
100p SDA5552
4.7k
R437 2.2n
47k
SERVICE X402
4
3 T416
R441
BC848
T407 4.7k
R443
2
BC848
1k
1
SERVICE
GRUNDIG Service
Circuit imprimés et schémas électriques / Layout of PCBs and Circuit Diagrams
9V
R113
10k
R112
4.7k
R109
4.7k
R444
L/L'
15k
non-L = 0 R
T102
C170
470P BC848 JUMPER
TU101 TUNER
* Les tensions sont des valeurs approximatives mesurées
sans 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
9V 9V D101
R453
1N4148
330R
R105
C101
T410
10u/16V
BC858 L = 12k
non L = 0 R
D408
CABEL4A
RGP10J
D405 R479
R457
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
40.4MHz 2.2k 2
C106 BA682
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
C103 R104
C102
47n 100u/10V 1k
R106
100k
T101
R107
BC848
CABEL8A
10k
R108
D106 10k
CABEL8B
1N4148
D410
1N4148 D41 1
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'
R209 680R
560R R223
R208 560R LL'=270R
C202
100R 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
1 R227
33k
1k 15k C209
2.2k
0R
C206 220p
C205
FRONT_AV_1
JUMPER
220p 470p CABEL9A
VERS / TO X10
PAGE 3-14
9V
T201
R215 BC848
68R
X202
2 CABEL1A CABEL1B
R233
R216
2.2k 1
FRONT_AV_2
VERS / TO X11
R217
PAGE 3-14
75R
R230
390R
R231
390R
R232
390R
T204
BC848B
Châssis / 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
C1 10
100n
CABEL10
R236
560R
R237
220R
RGB=470R
I
R234 R235
1k
1k 1k
OPTIO
R241
CA
T205 10k
R240
BC848B
10k
R239
FR_A
10k
R229
T206
BC848B
10k CA
R238
R243
R228
10k
10k
0R JUMPER
GRUNDIG Service