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GRUNDIG Service
Hauptplatte – Verstärker / Main Board – Amplifier
LOUD_OUT_L
AMP_STANDBY
LOUD_OUT_R
AUDI O_MUTE
R506
SUBWOOF ER
10K
C623
1nF
R707
10K
GND
SUBWOOF ER_STBY
C419
?
GND
C415
1UF25V
GND
SCART_ROUT2
SCART_LOUT2
HP_VOL
Downloaded From TV-Manual.com Manuals
L334
+12V
3,3uH- 053875
C638
220U %20 /25V
C628
470N
R394 1K
GND
C627
470N
C620
C619
1nF
1nF
GND
GND
GND
J303
*
+5V_MAIN
J304
0R
GND
J305
*
+5V_MAIN
J306
0R
GND
+5V_MAIN
+5V_MAIN
C630
470N
R395
1K
GND
C629
C621
C622
1nF
1nF
470N
GND
GND
T319
2N7002
R567
100
GND
+12V
3,3uH - 053875
1UF25V
C641
IC322
MP7731
R708
1
NC
180K
2
PIN1
C644
C640
2.2n
R706
3
NIN1
10K
4
AGND1
1UF25V
5
NC
C417
10nF
6
EN1
7
NIN2
C645
GND
8
2.2n
PIN2
9
AGND2
10
EN2
+12V
R496
GND
100K 1%
R497
100K 1%
GND
GND
1
NC
2
VC1
3
C634
NC
470n
4
VI 1
5
VP
6
VI 2
7
C635
SGND
470n
8
VC2
IC338
TDA7053AT
R718
GND
15K
R719
47K
GND
AUVDD
C446
C447
100N
100N
GND
GND
GND
GND
9
31
INL-
OUTL+
32
OUTL+
10
INL+
29
OUTL-
14
30
REG
OUTL-
C631
470N
13
AGND
6
CIP
11
SHDN
5
CIN
17
GAIN1
18
7
GAIN2
CHOLD
19
FS1
12
SS
20
FS2
27
OUTR+
28
OUTR+
15
INR-
25
OUTR-
16
26
INR+
OUTR-
IC321
MAX9704
R658
GND
100
C646
15P
R709
150K
L336
SUBVCC
C449
C648
100n
1000U16V
GND
GND
GND
20
PGND1
19
SW1
18
C642
VPP1
1UF25V
17
BS1
16
NC
15
PGND2
14
SW2
C643
13
VPP2
1UF25V
12
BS2
11
NC
GND
GND
R715
150K
C647
15P
+12V
C452
C650
100n
100U16V
GND
C363
L355
16
OUT1+
15
NC
100U16V
14
FB
PGND
13
OUT1-
12
OUT2-
11
NC
10
C367
L356
PGND2
9
OUT2+
100U16V
FB
GND
C351
C352
C353
10n
10n
10n
GND
GND
2 - 20
C639
220U %20 /25V
C473
GND
22N
L335
FL05RD200AT
C472
053516
22N
L339
FL05RD200AT
053516
C476
22N
C450
100N
GND
GND
C649 1UF25V
GND
C632
470N
C477
GND
22N
GND
L340
FL05RD200AT
C475
053516
22N
L341
FL05RD200AT
053516
C478
22N
GND
GND
10
9
19
20
16
15
11
17
18
12
C495
14
10n
D328
13 AGND
IMBD4148
R710
20K
BZX84C6V2
L342
ZD359
10uH
R711
10R
ZD362
MBRS130L TR
C651
390P
GND
GND
L343
10uH
R717
ZD360
10R
ZD361
BZX84C6V2
C652
390P
R716
20K
GND
GND
D329
MBRS130L TR
SUBVCC
IMBD4148
S309
3
2
1
MOLCON3
GND
C354
10n
GND
GND
Chassis LM
R701
100R
GND
C474
22N
C448
100N
HS350
ARC COOL ER
C479
22N
GND
R712
100R
S308
1
2
3
4
R713
MOLCON4
100R
GND
C480
22N
C451
100N
C481
22N
R714
100R
1
2
3
4 21 22
23 24
PGND
V
V
PGND
DD
DD
INL+
OUTL+
32
OUTL+
31
MODULATOR
H-BRIDGE
OUTL-
30
INL-
OUTL-
29
FS1
OSCILLATOR
FS2
OUTR+
28
INR+
OUTR+
27
H-BRIDGE
MODULATOR
OUTR-
26
INR-
25
OUTR-
SHDN
G1
GAIN
G2
CONTROL
MAX9704
SS
6
SHUTDOWN
C1P
REG
CONTROL
CHARGE PUMP
5
C1N
CHOLD
7
C633
470N
S310
1
C637
470N
GND
2
MOLCON2
C636
470N
GND
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