Audio Amp - EUROCOM X8100 Service Manual

Schematic Diagrams

Audio AMP

Sheet 27 of 55
Audio AMP
REAR R/L
? ? ? ?
26 S I D E -L
2 6 S I D E -R
B - 28 Audio AMP
FRONT R/L 2W 4ohm
? ? ? ? ? R ev _3 .0
R E A R _L
R E A R _R
R 4 76 7. 5 K _ 1 % _0 4 C 5 62 0 . 47 u _1 6 V _ Y 5 V _ 06
2 6 F R ON T_ L
R 4 78 7. 5 K _ 1 % _0 4 C 5 71 0 . 47 u _1 6 V _ Y 5 V _ 06
A U D G
R 4 74 7. 5 K _ 1 % _0 4 C 5 61 0 . 47 u _1 6 V _ Y 5 V _ 06
2 6 F R O N T _R
R 4 80 7. 5 K _ 1 % _0 4 C 5 69 0 . 47 u _1 6 V _ Y 5 V _ 06
A U D G
Re v_ 3. 0
R 4 67 1 0 0K _0 4 S P K _ E N
5 V S
R 4 68 * 10 0 K _ 04
A U D G
GA I N 0
GA I N 1
R 4 69 * 10 0 K _ 04
R 4 73 1 0 0K _0 4
A U D G
A U D G
3 . 3 V S
U 2 3C
74 L V C 0 8 P W
9
1 7 S B _ MU TE #
8
1 0
3 . 3 V S 3 . 3 V S
U 2 3 A
7 4L V C 08 P W
1 U 2 3 B
3 1 K B C _ M U T E #
3 R 2 35 1 0 M_ 0 4 7 4L V C 08 P W
3 . 3 V S
2 4
1 2, 2 6 H D A _ R S T #
5
32 H P _P L U G
1.5W 4ohm
Fcut(-3db)=1965H z
2000Hz High Pass Filter
R ev _3 .0
R E A R _ R
C 5 97 *1 8 00 p _5 0 V _ X7 R _0 6
R E A R _ L C 5 98 *1 8 00 p _5 0 V _ X7 R _0 6
U 41
Z 2 3 12
R 52 0 0 _ 0 4 C 5 5 9 1 8 00 p _ 50 V _ X 7R _ 06 5
L I N - P V D D
R 52 1 0 _ 0 4 C 5 5 7 1 8 00 p _ 50 V _ X 7R _ 06 9
A U D G L I N + P V D D
R 52 2 0 _ 0 4 C 5 5 0 1 8 00 p _ 50 V _ X 7R _ 06 Z 2 3 13 1 7
R I N -
R 52 3 0 _ 0 4 C 5 5 8 1 8 00 p _ 50 V _ X 7R _ 06 7
A U D G
R I N + LO U T +
L OU T -
S P K _ E N 1 9
S D #
R 4 65 * 10 0 K _ 04
A U D G
R 4 71 1 0 0K _ 0 4 GA I N 0 2
5V S GA I N 0 R O U T +
GA I N 1 3
GA I N 1
R 4 70 * 10 0 K _ 04
R OU T -
R 4 64 1 0 0K _ 0 4 1
A U D G GN D
1 1
GN D
1 3
GN D B Y P A S S
2 0
GN D
2 1
E X P OS E D P A D
T P A 6 0 17 A 2 P W P R
A U D G
S I D E _L O +_ C R 4 6 3 *2 0 m i l _ P _ 04
S I D E _L O -_C R 4 6 6 *2 0 m i l _ P _ 04
S I D E _R O+ _ C
R 4 5 8 *2 0 m i l _ P _ 04
S I D E _R O-_ C
R 4 5 7 *2 0 m i l _ P _ 04
5 V S
L5 1
5V S _ A M P H C B 10 0 5 K F -1 21 T 2 0
C 56 3 C 5 64 C 5 6 6
U 4 2
5 6 0 . 1 u_ 1 6 V _ Y 5 V _0 4 1 u _ 10 V _ 0 6 10 u _ 10 V _ Y 5 V _ 0 8
L I N - P V D D
9 1 5
L I N + P V D D
1 6
V D D
1 7
R I N -
7 4 S P K O U T L +_ C A U D G
R I N + LO U T +
8 S P K O U T L -_C
L O U T -
1 9
S D #
2 1 8 S P K O U T R + _ C
G A I N 0 R O U T +
3
G A I N 1
1 4 S P K O U T R -_ C
R O U T -
1
G N D
1 1
G N D
1 3 1 0
G N D B Y P A S S
2 0
G N D
2 1 1 2 C 57 0 C 5 94
E X P OS E D P A D N C
T P A 6 0 17 A 2 P W P R 1 0 u _1 0 V _ Y 5 V _ 08 * 0 . 47 u _ 10 V _ Y 5 V _ 0 4
Re v _3. 0
A U D G A U D G
3 . 3V S
U 23 D
R 2 2 5 10 0 K _ 04 7 4 LV C 0 8P W
1 2
11 S P K _ E N
S P K _ E N 26
1 3
6
H P _ E N G
Q2 1
MT N 70 0 2 Z H S 3
CENTER
? ? ? ?
5V S
L5 0
5 V S _ R E A R
H C B 10 0 5 K F -12 1 T 20
Fcu t(-3db)=1012.3Hz
100 0Hz High Pass Filter
C 5 4 9 C 5 4 8 C 5 6 0
6 0. 1 u _ 16 V _ Y 5 V _ 0 4 1 u_ 1 0 V _0 6 10 u _ 10 V _ Y 5 V _ 0 8
1 5
2 6 A U D I O _ C E N
1 6
V D D
S I D E _ LO + _C
4 A U D G
A U D G
8 S I D E _ LO -_ C
1 8 S I D E _ R O +_ C
S I D E _ R O -_C
1 4
1 0 Z 2 31 7
1 2 C 5 5 6
N C
0. 4 7 u _1 6 V _ Y 5 V _ 06 C E N T E R _S P K + _ C
Re v_ 3. 0 C E N T E R _S P K - _C
A U D G
S I D E _ L O+ 2 6
S I D E _ L O- 26
S I D E _ R O+ 2 6
S I D E _ R O- 2 6
S P K O U T L +_ C S P K OU TL +
R 47 5 *2 0m i l _P _ 0 4
S P K O U T L -_C S P K OU TL -
R 47 9 *2 0m i l _P _ 0 4
S P K O U T R + _ C S P K OU TR +
R 47 2 *2 0m i l _P _ 0 4
S P K O U T R -_ C R 47 7 *2 0m i l _P _ 0 4 S P K OU TR -
L 38
F C M1 0 0 5K F - 12 1 T0 3
S P K OU T L+ S P K OU T L+ _ R
S P K OU T L- S P K OU T L-_ R
L 39 C 3 87 C 38 6
F C M1 0 0 5K F - 12 1 T0 3
*1 80 p _ 50 V _ N P O _ 04 * 18 0 p _5 0 V _ N P O _0 4
L 40 F C M 10 0 5 K F -1 21 T 0 3
C E N TE R _ S P K +
C E N TE R _ S P K -
L 41 F C M 10 0 5 K F -1 21 T 0 3
L 36
F C M1 0 0 5K F - 12 1 T0 3
S P K OU T R + S P K OU T R + _ R
S P K OU T R - S P K OU T R -_ R
L 37 C 3 85 C 38 4
F C M1 0 0 5K F - 12 1 T0 3
*1 80 p _ 50 V _ N P O _ 04 * 18 0 p _5 0 V _ N P O _0 4
1.5W 4ohm
F cut(- 3db)=1809.4Hz
2 000Hz Low Pass Fil ter
C 28 0 22 0 0p _ 5 0V _ X 7 R _ 0 6
C 29 4 22 0 0p _ 5 0V _ X 7 R _ 0 6
C 2 8 1 0 . 0 2 2u _ 50 V _ Y 5 V _ 0 6 U 22
R 2 2 4 8. 2 K _ 0 4 4 5 C E N T E R _S P K +_ C
I N - V O+
R 2 3 8 8. 2 K _ 0 4 3
I N + C E N T E R _S P K -_C
C 2 9 5 0 . 0 2 2u _ 50 V _ Y 5 V _ 0 6 8
V O-
2
B Y P A S S
C 2 8 9 1 u _1 0 V _ 06 6
V D D
Re v_3 .0
S P K _ E N 1 7 C 2 9 3
S D # GN D
T P A 6 2 11 A 1 D G N R 0. 1 u _ 16 V _ Y 5 V _ 0 4
A U D G
A U D G
R 2 2 3 * 20 m i l _ P _ 0 4 C E N TE R _ S P K +
R 2 3 7 * 20 m i l _ P _ 0 4 C E N TE R _ S P K -
3 . 3 V S 3 , 8. . 1 2 , 1 4, 1 6 . . 2 4, 26 , 2 8. . 35
5 V S 1 0 , 11 , 1 9 . . 21 , 2 3 . . 26 , 3 2 . . 35
J _F R C E N S P K
1
2
3
4
5
6
8 5 2 04 -0 6 00 1
5V S
L 2 8
H C B 1 0 05 K F -1 2 1 T2 0
5 V S _ C E N
C 28 7
1 0 u _1 0 V _ Y 5 V _ 08