Grundig Apollo 42, Руководство по обслуживанию

Страница: 16 / 56

GR
UNDIG Ser
vice
Chassis PE
2 -
Audio - Verstärker / Amplifier - HW1.190
GND
GND
GND
O
U
TA
1
IN
A
(N
E
G
)
2
IN
A
(P
O
S
)
3
V
S
S
4
IN
B
(P
O
S
)
5
IN
B
(N
E
G
)
6
O
U
TB
7
V
D
D
8
U400
TDA1308
C411
220N
C413
220N
R455
4K7
R456
4K7
C433
2N2
C435
2N2
C436
2N2
C434
2N2
GND
GND
GND
C402
100N
GND
R402
10K
R403
10K
C432
10U50V
GND GND
R460
22K
R459
22K
C422
1N5
C423
1N5
C441
1N
C444
1N
C437
100U16V
C438
100U16V
GND
GND
L400
10UH_0805
C428
10U50V
C400
100N
GND GND
HP_R
HP_L
VCC_5V
+5V_HP
+5V_HP
FAV_HP_L
FAV_HP_R
FA
V
_H
P
_L
FA
V
_H
P
_R
PIN
1
NIN
2
AGND
3
EN
4
BS
5
VPP
6
SW
7
PGND
8
U751
MP7720
C768
2N7
R765
10K
C773
100N
R763
100K
R762
100K
C766
4.7U/16V/X5R
R764
10K
C763
22P
R761
120K
C765
4N7
FB751
C764
CAP100U50V
C767
1UF/25V/X7R
GND
R769
10
R
C775
390P
C771
330N / 0805
R767
10
K
D752
S
L2
3_
S
M
D
L751
10uH/3.5A
C772
47
0N
/M
et
al
F
ilm
C770
C
A
P
10
00
U
25
V
R768
10
R
C774
100N
C769
1UF/16V/X7R
R766
10
K
VCC_24V
GND
GND
MAIN_R
SOFT_MUTE
GND
GND
GND
GND
GND
GND
GND
GND
1
2
3
4
S750
MOLCON4
GND
PIN
1
NIN
2
AGND
3
EN
4
BS
5
VPP
6
SW
7
PGND
8
U750
MP7720
C755
2N7
R754
10K
C760
100N
R752
100K
R751
100K
C753
4.7U/16V/X5R
R753
10K
C750
22P
R750
120K
C752
4N7
FB750
FERRITE 0805 4A
C751
CAP100U50V
C754
1UF/25V/X7R
GND
R758
10
R
C762
390P
C758
330N / 0805
R756
10
K
D751
S
L2
3_
S
M
D
L750
10uH/3.5A
C759
47
0N
/M
et
al
F
ilm
C757
C
A
P
10
00
U
25
V
R757
10
R
C761
100N
C756
1UF/16V/X7R
R755
10
K
VCC_24V
11,7V
11,7V
GND
GND
MAIN_L
SOFT_MUTE
GND
GND
GND
GND
GND
GND
GND
GND
GND
Q750
BC848B
VCC_5V
R759
4K7
R760
4K7
GND
SOFT_MUTE
AMP_MUTE
AMP_MUTE
GND
D750
ZENER 6V2
D753
ZENER 6V2
1N4148-SOT23
D762
R781
20K
1N4148-SOT23
D764
R782
20K
D763
SL23_SMD
D761
SL23_SMD
MPS2_24V
MPS_24V
VCC_24V
C797
CAP2200U35V
GND
SPEAKER_LEFT
SPEAKER_RIGHT
R430
4K7
R431
4K7
GND
STBY_5V
1 2 3 4 5 6 7 8 9 10
S751
HEADER 10
VCC_24V
GND
M
A
IN
_L
M
A
IN
_R
S
O
FT
_M
U
TE
OPTIONAL 12V AMP
J751
0R
J750
0R
1
2
3
S400
MPS_24V
MPS2_24V
MPS2_24V
MPS_24V
J404
0R
L750a
10uH/3.5A_SMD
L751a
10uH/3.5A_SMD
TP403
TP405
TP404
TP401
TP402
R438
2K7
Q409
BC848B
D403
BZX84C18
GND
VCC_24V
Q408
BC858B
R437
20K
D402
BZX84C18
VCC_24V
GND
R439
12K
IC Block Diagram p. 2-39
5
6
5
6