Audio Amp - Sharp LC-42SB45U Service Manual

13.AUDIO AMP

1 2
U400G
MT5382AR
A
AV1_LIN
J23 C22
AIN0_L ALIN
AV1_RIN
J24 B22
AIN0_R ASPDIF
AV2_LIN
J25 A24
AIN1_L AOMCLK
AV2_RIN J26 B23
AIN1_R AOLRCK
AV3_LIN K23 A23
AIN2_L AOBCK
AV3_RIN K24 D22
AIN2_R AOSDATA0
VGA_LIN
K25 C23
AIN3_L AOSDATA1
VGA_RIN
K26 B24
AIN3_R AOSDATA2
L23 A25
AIN4_L AOSDATA3
L24 B25
AIN4_R AOSDATA4
L25 F26
AIN5_L AL1
L26 G25
AIN5_R AR1
M23 E26
AIN6_L AL2
M24 F25
AIN6_R AR2
M25 H23 AVDD33_ADAC1
AIN7_L AVDD33_ADAC1
M26 G24 AVSS33_ADAC0
AIN7_R AVSS33_ADAC0
AVDD33_AADC AVSS33_ADAC1
N23 H22
AVDD33_AADC AVSS33_ADAC1
AVSS33_AADC AVSS33_ADAC0
J22 G23
AVSS33_AADC AVSS33_ADAC0
B AVSS33_AADC AVDD33_ADAC0
K22 F24
AVSS33_AADC AVDD33_ADAC0
AVSS33_AADC
L22
AVSS33_AADC
AVSS33_AADC ADAC_VCM
M22 G26
AVSS33_AADC ADAC_VCM
VIMD_AADC AVDD33_DIG
H24 P23
VMID_AADC AVDD33_DIG
REFP_AADC H25 N22 AVSS33_DIG
REFP_AADC AVSS33_DIG
REFN_AADC H26
REFN_AADC
D601 BAS32L
2 1
K A
R608
DV33SB
C
ENGAGE
10K 1/10W 5%
R607
10K 1/16W 5% C621
470N 16V X7R +-10%
R612
MUTE Q600
BC847BW
1K 1/16W 5%
MUTE (OPCTRL4)
SMD/0402
L:Sound Active
R616
1K 1/16W 5%
+12V
D
SMD/0402
R617
10K 1/16W 5%
D603 BAS32L
SMD/0402
2 1
K A
R620
Q605
1
BC857BW
1K 1/16W 5% SMD/0402
R622
1 2 NC/10K 1/16W 5%
A K
D600 BAS32L + C624 SMD/0402
220uF 25V
E
F
+5V_SW
SMD/0402
R633
SOUND_EN POWERUP
100R 1/16W 5%
R634
SMD/0402 20K 1/16W 5%
SOUND_EN(GPIO_9):
SMD/0402
H:Sound Active
G
R636
Audio_Power_UP
NC/100R 1/16W 5%
SMD/0402
H
1 2
3 4 5
ASPDIF
AV33
AOLRCK VIMD_AADC 1
AOBCK FB601
120R/500mA
C601 C602 C603
4.7UF 10V 100N 16V 1uF/16V
0402/SMD
AL2
AR2
+
C620 C619
AV33
1 2 AVDD33_ADAC0
FB600
120R/500mA
C609 C610 C600
1uF/16V 4.7UF 10V 100N 16V
0402/SMD
AVSS33_ADAC0
FB605 75R W6RH3.5X10X1.0
+24V 1 2 AUDIO-VDD
+ C622 + C623
100uF 35V 470uF 35V
R619 R626
AL2 AL2O
100R 1/16W 5% 12K1/10W
SMD/0402
C690
ROUTE SYMMETRICALLY
10N 50V
R618 R628
AL2_GND
0R05 1/16W 5% SMD/0402 12K1/10W
ENGAGE
Close to MT5381
POWERUP
AUDIO-VDDA
SMD/0402
R621 R639
AR2 AR2O
100R 1/16W 5% 12K1/10W
SMD/0402
C691
ROUTE SYMMETRICALLY
10N 50V R600 R641
AR2_GND
0R05 1/16W 5% 12K1/10W
SMD/0402
Close to MT5381
3 4 5
6 7
AV33
2 REFP_AADC 1 2 AVDD33_DIG
FB602
120R/500mA
C604 C605 C606 C607
4.7UF 10V 100N 16V 1uF/16V 4.7UF 10V
0402/SMD
REFN_AADC AVSS33_DIG
AV33
AV33
AVDD33_ADAC1
1 2
FB603
120R/500mA
+
C611 C612 C613 C614
1uF/16V 4.7UF 10V 100N 16V 100uF 10V
0402/SMD
AVSS33_ADAC1
+24V R625 AUDIO-VDDA
10R 1/4W 1206 L_OUT
C625 L_RETURN
470N 50V
NEAR AMP
R_RETURN
R_OUT
C626
U600
TDA8932BTW
470N 16V
1 32
VSSD/HW VSSD/HW
C631
2 31
IN1P OSCIO
3 30
IN1N HVP1
470N 16V
4 29
DIAG VDDP1
5 28
ENGAGE BOOT1
6 27
POWER UP OUT1
7 26
CGND VSSP1
8 25
VDDA STAB1
39K 1/16W 5% R635
9 24
VSSA STAB2
100N 50V C637
10 23
OSCREF VSSP2
100N 50V C641
11 22
HVPREF OUT2
47uF 25V C642
12 21
INREF BOOT2
100N 50V C644 13 20
TEST VDDP2
C645
14 19
IN2N HVP2
470N 16V
15 18
IN2P DREF
16 17
VSSD/HW VSSD/HW
C685
470N 16V
6 OHM/10W FOR 42"
6 7
77
8 9 10
1,2 +12V
1,2 +24V
1,2,3,4,5,6,7,8,9,10,11,12,14 GND
2,8,12,14 AV33
1,5,7,9,12 DV33SB
C608
1,2,8,10,11,12,14 +5V_SW
100N 16V
0402/SMD
5 SOUND_EN
10 AV1_RIN
10 AV1_LIN
10 AV2_RIN
10 AV2_LIN
11 AV3_RIN
11 AV3_LIN
10 VGA_RIN
10 VGA_LIN
11 ASPDIF
0402/SMD
AVDD33_AADC
1 2
4 AOBCK
FB604
4 AOLRCK
120R/500mA
C615 C616 C617
5 MUTE
1uF/16V 4.7UF 10V 100N 16V
9 Audio_Power_UP
AVSS33_AADC
Speaker L OUT
CN604
+
1
2 -
63382 2P 2.0MM
Speaker R OUT
CN605
+
1
-
2
3
63383 3P 2.0mm
+ C630
680uF 25V
L_RETURN
AUDIO-VDD
C632
R629
22R 1/4W
470P 50V C635
470N 50V
L_OUT
L600 33uH
R_OUT
L601 33uH
C640
470N 50V
C643 R638
470P 50V
22R 1/4W
AUDIO-VDD
R_RETURN
+ C684
680uF 25V
8 9 10
LC-42SB45U
11
+12V
A
+24V
GND
AV33
DV33SB
+5V_SW
SOUND_EN
AV1_RIN
AV1_LIN
AV2_RIN
AV2_LIN B
AV3_RIN
AV3_LIN
VGA_RIN
VGA_LIN
ASPDIF
AOBCK
AOLRCK
MUTE
Audio_Power_UP
C
CN604 D9 CN605 E9
C600 C5 C601 A4
C602 A4 C603 A5
C604 A6 C605 A6
C606 A7 C607 A8
D
C608 A8 C609 C4
C610 C4 C611 C6
C612 C6 C613 C7
C614 C8 C615 C8
C616 C9 C617 C9
C619 B3 C620 B3
C621 C2 C622 D3
C623 D4 C624 E2
C625 D6 C626 E5
C627 E6 C628 E7
C629 E8 C630 E8
C631 F5 C632 F8
C633 F7 C634 F9
C635 F9 C636 F7
C637 F6 C638 F7
C639 F9 C640 F9
E
C641 F6 C642 G6
C643 G8 C644 G6
C645 G5 C646 G6
C647 G7 C648 G8
C649 G8 C684 G8
C685 G5 C690 E4
C691 G4 D600 E1
D601 C2 D603 D1
FB600 C4 FB601 A5
FB602 A7 FB603 C6
FB604 C8 FB605 D4
L600 F8 L601 F8
Q600 C2 Q605 E2
R600 G4 R607 C2
R608 C2 R612 C2
R616 D2 R617 D2
F
R618 F4 R619 E4
R620 E1 R621 G4
R622 E2 R625 D6
R626 E5 R627 E6
R628 F5 R629 F9
R630 F2 R632 F8
R633 G2 R634 G2
R635 F6 R636 G2
R637 F8 R638 G9
R639 G5 R640 G6
R641 G5 R642 F8
R643 F8 TP615 D8
TP617 D8 U400G A2
G
H
11