Audio Amp - EUROCOM P270WM Service Manual

Audio AMP

FRONT R/L 1.5W 8ohm
0711-J
del R101,R87
12MIL
U4
FRONT_L R82 5.1K_1%_04 C113 0.47u_16V_Y 5V_06 5
35 FRON T_L 9 LIN-
C124 0.47u_16V_Y 5V_06
AUDG
LIN+
FRONT_R R100 5.1K_1%_04 C133 0.47u_16V_Y 5V_06 17
35 F RONT_R 7 RIN -
C115 0.47u_16V_Y 5V_06
AUDG
RIN +
12MIL
SPK_EN 19
SD#
R85 100K_04
AUDG
R84 * 100K_04 GAIN0_F 2
5VS GAIN0
R88 100K_04 GAIN1_F 3
GAIN1
R89 * 100K_04
AUDG
1
GND
11
13 GND
D03-1006J
20 GND
R84, R89 add "*"
GND
21
R85, R88 del "*"
EXPOSED PAD
TPA6017A2PWPR
AUDG
SURR R/L 1W 8ohm
5VS
L57
5VS_REAR
HCB1005KF -121T20
C396 C392 C384
0.1u_16V_Y 5V_04 1u_10V_Y 5V_06 10u_10V_Y 5V_08
AUDG
D03-1006J
R385
0¡÷5.1K
R339 0¡÷10K 5VS_REAR
12MIL
U17
2CH_SIDE_L R385 0_04 C425 0.15u_16V_X7R_06 5 6
9 LIN- PVDD 15
C412 0.15u_16V_X7R_06
AU DG
LIN+ PVDD 16
VDD
2CH_SIDE_R R339 0_04 C382 0.15u_16V_X7R_06 17
7 RIN- 4
C420 0.15u_16V_X7R_06
AU DG
RIN+ LOUT+
12MIL
8
LOUT-
SPK_EN 19
SD #
R390 *100K_04
AUDG
R386 *100K_04 GAIN0_S 2 18
5VS GAIN0 ROUT+
GAIN1_S 3
GAIN1 14
R382 100K_04
1 ROUT-
R387 *100K_04
AUDG GND
11
13 GND 10
20 GND BY PASS
GND
D03-1006J 21 12
EXPOSED PAD NC
R386,R387 add "*"
TPA6017A2PWPR
R382,R390 del "*"
AUDG
AUDG
12/07 5VS
U21 C503 0.1u_16V_Y 5V_04
2 12
35 SURR-OUT-L
F RONT_L 11 0B0 VCC
1B0
1 2CH_SIDE_L
10 A0 3
S0 GND
5 9
35 SURR-OUT-R 0B1 VCC
F RONT_R 8
1B1 4 2CH_SIDE_R
A1
7 6
33 DOLBY _SEL S1 GND
PI5A3158
L: 0Bx¡÷Ax, H: 1Bx¡÷Ax AUDG
6-03-53158-0J0
CENTER 1.5W 4ohm/ SUBWOOFER 2W 4ohm
5VS
L36
5VS_AMP
HCB1005KF -121T20
D03-1019J
Modify
C123 C125 C126
6 0.1u_16V_Y 5V_04
PVDD 15
PVDD 16
VDD
4
SPKOUTL+_C AUDG R1016 1K_04
35,54 SPK_EN
LOUT+
8 SPKOUTL-_C
LOUT-
20MIL 2CH _CENTER R1013 300K_04 C1063 1u_25V_Y 5V_06
18 SPKOUTR+_C R1019 *0_04
ROUT+
12 Mil C1061 1u_25V_Y 5V_06
14 AMPGND
SPKOUTR-_C SPKOUTR-_C
ROUT- GAIN0
10
GAIN1
BY PASS
12
C132 C121 R1018 10_06
NC AVCC
C1087 1u_25V_Y 5V_06
1u_10V_Y 5V_06 *0.47u_10V_Y 5V_04
AMPGND
C1081 1u_25V_Y 5V_06
AUD G AUDG C1082 1u_25V_Y 5V_06 R1014 10K_04
R1017 10K_04
C1067 1u_25V_Y 5V_06
AMPGND
12 Mil R1020 *0_04
2CH _SUBWOOFER_RC C1066 1u_25V_Y 5V_06
R1015 200K_04
D03-1019J
Modify
D03A Change
AMPGND
12V AVCC AMPGND
R1003 0.2_06
C1072
C1071 10u_6.3V_X5R_08 C1074
0.1u_10V_X5V_04 C1073 0.1u_10V_X5V_04
10u_6.3V_X5R_08
R1006 0.2_06
AMPGND
AVCC
SHUTDOWN TPA3110D2
L ( 0V~0.8V ) SHUTDOWN
R1008 R1009
*100K_04
*100K_04
H ( 2V ~ VDD ) ACTIVE Note:
GAIN1 GAIN0 GAIN ( dB ) GAIN0 GAIN1
0 0 20 when output under 6W stereo, please follow
R1010 R1011
1 0 26 0_04 demo board layout carefully then one can
0_04
20MIL
use Ferrite Bead & Capacitor (bead-C) directly
0 1 32
and can omit LC filter
SIDE_LO+_C 1 1 36
SIDE_LO-_C
SIDE_RO+_C
SIDE_RO-_C
C409
0.47u_16V_Y5V_06
6-03-53158-0J0 5VS
AUDG
U19 C 482 0.1u_16V_Y 5V_04
2 12
35 AUDIO_CEN
FRONT_L 11 0B0 VC C
1B0
1 2CH_CENTER
A0
10 3
S0 GND
AUDG
5 9
35 LEF _OUT 0B1 VC C
FRONT_R 8
1B1 4
2CH_SUBWOOFER
7 A1 6
33 DOLBY _SEL S1 GND
PI5A3158
L: 0Bx¡÷Ax, H: 1Bx¡÷Ax AUDG
R588 0_04 R 86 *0_04
AMPGND AMPGND AUDG
12V
FRONT R/L & CENTER
D03-1018J
L101 L38
Modify
HCB1005KF -121T20 FCM1005KF-121T03
SPKOUTL+_C SPKOUTL+_R
SPKOUTL-_C SPKOUTL-_R
C1077 1000p_50V_X7R_04
L39 C196
U30 C1080 0.1u_16V_Y 5V_04 FCM1005KF-121T03
*180p_50V_NPO_04
1 28
C1078 10u_25V_Y 5V_12
SDZ PVCC
2 27
FAULTZ PVCC
3 26
C1062 0.22_16V_Y 5V_04 LP L40 F CM1005KF -121T03
INPL BSPL
CENTER_SPK+_C CENTER_SPK+_R
4 25 CENTER_SPK+_C CENTER_SPK-_C CENTER_SPK-_R
INNL OUTPL
20MIL
5 24
L41 F CM1005KF -121T03
GAIN0 PGND
6 23
CENTER_SPK-_C
GAIN1 OUTNL
D03-1017J L42
7 22 LN
Modify F CM1005KF -121T03
AVCC BSNL
C1064 0.22_16V_Y 5V_04 SPKOUTR+_C SPKOUTR+_R
8 21
C1065 0.22_16V_Y 5V_04 RN SPKOUTR-_C SPKOUTR-_R SPKOUTR-_R
GND BSNR
9 20 SUBWOOFER-_C L43 C211
GVDD OUTNR
F CM1005KF -121T03
10 19
20MIL *180p_50V_NPO_04
PLIMIT PGND
11 18 SUBWOOF ER+_C
INNR OUTPR
12 17 RP
INPR BSPR
C1068 0.22_16V_Y 5V_04
13 16
SURR R/L
NC PVCC
C1083 1000p_50V_X7R_04
14 15
PBTL PVCC
C1084 0.1u_16V_Y 5V_04
29 50 SID E_LO+_C
L79
GND GND
30 49 C1085 10u_25V_Y 5V_12 SID E_LO-_C L80
GND GND
31 48
32 GND GND 47
GND GND
33 46
GND GND
34 45 L102
GND GND
HCB1005KF -121T20
SID E_RO+_C
L54
AMPGND SID E_RO-_C L55
D03-1018J
TPA3113D2 12V Modify
AMPGND
Snubber(reserve)
SUBWOOFER
C1069
*1000p_50V_X7R_04
LP R1002 * 10_04
SUBWOOF ER+_C
SUBWOOF ER-_C
C1070
*1000p_50V_X7R_04
LN R1004 * 10_04
C1075 *1000p_50V_X7R_04
RN
R1005 * 10_04
C1076
*1000p_50V_X7R_04 D03-1018J
RP
R1007 * 10_04 add "*" for EMI
R983 0_04
C1052
*0.01u_16V_Y 5V_04
1 8
OUTPUT 1 VCC
2 7
R590 R986
INPUT 1- OUTPUT 2
0_1%_04 *16K_1%_04
3 6
2CH_SU BWOOF ER
INPUT 1+ INPUT 2-
C758 4 5
GND INPUT 2+
0.1u_10V_X5R_04
C107 C1054
R 1021 U63
* 10K_04 AMPGND *AS358
FILTER
AMPGND
AMPGND
DEFAULT
D03-1011J
Modify
OPTION USE U63 R986=R590
old R590 3.24k
add C107
Schematic Diagrams
C187
J_F RCENSPK1
* 180p_50V_NPO_04
1
2
3
4
5
6
87213-0600G
C201 C204
1000p_50V_X7R _04 1000p_50V_X7R_04
C208 6-20-53140-106
* 180p_50V_NPO_04
Sheet 36 of 63
J_SPKL1
SIDE_LO+_R
F CM1005KF -121T03
1
F CM1005KF -121T03 SIDE_LO-_R Audio AMP
2
85204-02001
J_SPKR1
SIDE_RO+_R
F CM1005KF -121T03
1
F CM1005KF -121T03 SIDE_RO-_R
2
85204-02001
L77
F CM1005KF -121T03 J_SUBWUF1
SUBWOOFER+_R
1
SUBWOOFER-_R
2
L78 C766 C773 85204-02001
F CM1005KF -121T03
1000p_50V_X7R_04 1000p_50V_X7R_04
5VS
C1051
2CH_SUBW OOF ER_RC
C1101
AMPGND R987
*100K_04
R989
*100K_04
AMPGN D
AMPGND
D03-1021J
Modify
Audio AMP B - 37