Grundig SEDANCE 27 Service Manual page 18

GRUNDIG Service
Hauptplatte / Main Board – VGA
1N4148
D400
VGA_5V
1N4148
D401
+5V
U400
1
A0 VCC
2
A1 WP
3
A2 SCL
4
GND GND SDA
24LC02
DDC_SDA_VGA
DDC_SCL_VGA
S420
HS_SD
J415
1
0R VS_SD
J416
2
0R
3 GND
RED_SD GND
J417
4
0R
J418 GREEN_SD
5
0R
BLUE_SD
J419
6
0R
7 GND
AUDIO_L_SD +3.3V_RGB
8
AUDIO_R_SD
9
10 GND
RxD
11
TxD
12
13 +5V_STBY
14 +5V_STBY
15
53398-1590
Hauptplatte – Verstärker / Main Board – Amplifier
to Audio Board
p. 2-14, S421
S421
1
2 +12V_AMP
MAIN_L
3
MAIN_R
4
MUTE_1
5
6 GND
7
MHDR1X7
L405
MAIN_L
MAIN_L
100MHz Bead
26
L406
MAIN_R
MAIN_R
100MHz Bead
+5V_STBY
R480
10K
MUTE_1
J405
0R
R481
Q410
MUTE
4K7 BC848B
GND
R423 R424 C406
47K 47K 100N
8
GND
7
GND
DB15 HD_SH
6
5
VGA_5V
11
R419
12
D406
BAV99L 100R
13
3
14
VGA_5V
R420
15
100R
GND
3
D405
BAV99L
GND
GND
PI3V512
RED_SD 24
A0 +3.3V
RED_DSUB 23
A1 OUT_A
GREEN_SD 22
B0 GND
GREEN_DSUB 21
B1 +3.3V
20
GND GND OUT_B
C262
100N 19
+3.3V OUT_C
BLUE_SD 18
C0 GND
HS_SD 17
D0 OUT_D
BLUE_DSUB 16
C1 +3.3V
HS_DSUB 15
D1 GND
VS_SD 14
E0 OUT_E
VS_DSUB 13
E1 SEL
U410
C411
1
GND
C473
1U50V
2
100N
3
4
5
R467
6
GND
8K2 %1
7
8
9
C460
R434 R437
10
22K 22K
CAP2.2U10V
11
12
13
C484
R435 R448
2 1 14
22K 22K
CAP2.2U10V
15
C493
16
GND
17
100N
R425
VDD
GND
18
1M
J403
C494
0R
GND 100N MUTE_1
L407
OUTP1
10uH
D407
D Schottky
GND
GND
L408
OUTM1
10uH
D408
28 L409
D Schottky
10uH
GND
OUTM2
GND
D409
D Schottky
L410
GND
10uH
OUTP2
GND
D410
D Schottky
VGA_5V
D402
BAV99L
3 RED_DSUB
VGA_5V
GND
GND
D403
P401 BAV99L
3 GREEN_DSUB
1
VGA_5V
6
2
7 GND
3
8
4
3 BLUE_DSUB
9
VGA_5V
5 D404
10 R428 BAV99L
10K
GND
R429 R430
10K 10K
VGACON
VS_DSUB
HS_DSUB
L414
1 +3.3V_RGB
+3.3V
10uH
2 RED_SW C261 C260
100N 10U50V
3
OUT_A
GND
2
GND GND
4 +3.3V_RGB
OUT_B
5 GREEN_SW C264
5
100N
6 BLUE_SW
GND
OUT_C
6
7
GND OUT_D
8
8 HS_SW
9 +3.3V_RGB
OUT_E
11
10 C263
GND
100N
SEL
12
11 VS_SW
GND
12
PC_SD_SW
C265
100N
GND
C259
+5VGEN 36
CPUMP
1U50V
DCAP2 35
PGND1 GND
DCAP1 34
NC
L411
V5D 33 VDD
VDDA
100MHz Bead
AGND1 32
NC
REF 31
OUTP1
OVERLOADB 30
VDD1
C258 C471
AGND2 29
VDD1 100N CAP180U25V
V5A 28
OUTM1
VP1 27
OUTM2
IN1 26
VDD2
C422 C472
MUTE 25
VDD2 100N CAP180U25V
24
NC OUTP2
23
VP2 NC
22
IN2 DGND GND
21
BIASCAP NC
20
AGND3
PGND2 GND
S409
19
SLEEP FAULT
SPEAKER
U402
TA2024
J404
0R
C496 C250 C254
470N 470N 1N
63V 63V
GND
C252
R465 100N
C497 10R C255
470N 1N
63V
C498 C251 C256
470N 470N 1N
63V 63V
GND
C253
R466 100N
C499 10R C257
470N 1N
63V
2 - 
Chassis
C400
J410 R400
RED_SW
0R
47R 10N
R406
C401
75R
R401 10N
C489
R426
GND
470R
10N
C402
J411 R402
GREEN_SW
0R 47R
10N
R407
75R
C403
84R5
GND
R403 10N
C404
J412 R404
BLUE_SW
0R 47R
R410 10N
C405
75R
R405
BLUE-
10N
GND
GND
J413 R412
VS_SW
0R
75R
R431
10K
GND
J414 R413
HS_SW
0R
75R
C452
22P
GND
A0 10
OAOUT1
24
A1
23
11
B0 INV1
22
B1
21
Processing
C0
18
&
D0
17
Modulation
C1
16
16 BIASCAP
D1
15
E0
5V
14
E1
13
MUTE
12
PI3V512
14
OAOUT2
15
INV2
6
Processing
REF
&
Modulation
3
DCAP1
2
DCAP2
18
SLEEP
4
V5D
VDD
5
AGND1
5V
9
V5A
8
AGND2
17
AGND3
13
+12V_AMP
21
C495
NC
1N 23
OUTP1 32
TA 2024
GND
34
VDD
GND
OUTM1
28
OUTM2
VDD
GND
OUTP2
§
SST
250G2-V04
29
•
ª
L5A-26"...32"
RED+
RED-
SOG_MCSS
GREEN+
GREEN-
BLUE+
VS_PC
C451
22P
GND
HS_PC
R432
10K
GND
VDD1
OUTP1
31
PGND1
VDD1
28 OUTM1
PGND1
19
7
VDD2
OUTP2
24
PGND2
VDD2
27 OUTM2
PGND2
36
CPUMP
33
VDDA
22
DGND
1
+5VGEN
30
VDD1
29
VDD1
35
PGND1
25
VDD2
26
VDD2
20
PGND2