Audio Amp/Hp Out - Haier LET32/40T900 Service Manual

9) Audio Amp/HP Out

Main Speak CKT
220R/2000mA
FB632
+24V_16V
1 2
220R/2000mA
FB633
DV33 FB631 AUD_V33
220R/2000mA 1 2
1 2
C632 C633
+
100UF 35V 220UF 35V
C631
4.7uF 10V
AUD_V33
AUD_V33
C643
AUD_V33 VDD_PLL 100N 16V
R643
2.2OHM 1/10W SMD/0402 PWRDN
R645 2K2 1/16W 5%
C640 VDD_PLL
C639 C641 C642
100N 16V 100N 16V 4N7 50V 680pF 50V PLL_FILTER
SMD/0402 SMD/0402 SMD/0402 SMD/0402
R644 PLL_GND
0R05 1/10W I2S input MCLK
BICKI
Clos e to
LRCLK
U602
AOMCLK MCLK
R646
22R 1/16W 5% SDI
BICKI1 BICKI
R647
22R 1/16W 5% AUD_RST
AOLRCK LRCLK
R648
22R 1/16W 5%
AOSDATA0 SDI
R649
22R 1/16W 5% OSDA0 R651 22R 1/16W 5%
OSCL0 R652 22R 1/16W 5%
Clos e to
MT5365
DV33SB DV33
R693
10K 1/16W 5%
R691 R688
SPK_MUTE: 10K 1/16W 5% NC/10K 1/16W 5%
SMD/0402
NORMAL: Low
D696
MUTE: High
SPK_MUTE
1 2
A K
R692 10K 1/16W 5%
BAS316WS
SMD/0402
R694
4K7 1/16W 5%
SMD/0402
+24V_16V STB_PWR5V
D692
BAS316WS
D693
R695 R696
NC/0R05 1/10W 5% 0R05 1/10W 1 2 OFF_MUTE
A K
BAS316WS
D691
1 2
A K
BAS316WS C699
220UF 25V +
1 BC857BW
Q692 EC80 SMD
R697 4K7 1/16W 5%
SMD/0402
R698
0R05 1/16W
2 1 SMD/0402
K A
R699
D694 NC/100K1/16W
BAS316WS SMD/0402
DV33 DV33SB
REMOVE AC R689 R690
NC/10K 1/16W 5% 10K 1/16W 5%
POP
D695
SOUND CKT
HP_SC_MUTE SC_MUTE
1 2
A K
BAS316WS
REMOVE POP SOUND CKT
When AC ON and DC OFF
Clos e to AUD_V33
Clos e to
U602
U602 Pin8
Pin11
AUD_VCC
R641
4K7 1/16W 5%
SMD/0402
C634 C635 C636 C637
AUD_RST
+
100N 50V 1uF 50V 100N 50V 1uF 50V
C638
1UF16V
EAPD
TW
R659 10K 1/16W 5%
I2S AUDIO AMP
U602
19 18 DDX3A
EAPD/OUT4B OUT3A
20 17 DDX3B
TWARN/OUT4A OUT3B
21 16 C645
VDD_DIG CONFIG
22 15 100N 50V
GND_DIG VDD
23 14
PWRDN GND_REG
24 13 OUT1A
VDD_PLL OUT1A
25 12
FILTER_PLL GND1
26 11 AUD_VCC
GND_PLL VCC1
27 10 OUT1B
XTI OUT1B
28 9
BICKI OUT2A
29 8 AUD_VCC
LRCKI VCC2
OUT2A
30 7
SDI GND2
31 6 OUT2B
RESET OUT2B
32 5 C646
INT_LINE VCC_REG
33 4 100N 50V
SDA VSS
34 3
SCL TEST_MODE
35 2
GND_DIG SA
SMD/0402 36 1
VDD_DIG GND_SUB
37
Thermal Pad
A_ONSEL
STA339BWTR
A_GAIN
AUD_V33
SMD/0402
PWRDN PWRDN_Wof
R661
C644 0R05 1/16W
100N 16V
SMD/0402 EAPD R662
NC/0R05 1/16W
SMD/0402
DV33
OFF_MUTE Q633
BC847C
R681 4K7 1/16W 5%
PWRDN
Q691
BC847BW Sound Woofer CKT
Power AMP
37
GND
36
VCCSIGN
35
VCCSIGN
C666 C667 34
VSS
NC/0.1uF 50V NC/0.1uF 50V 33
VSS
DDX3B 32
IN2B
31
IN2A
30
IN1B
SMD/0402 DDX3A 29
IN1A
TW 28
TH_WAR
R660 27
FAULT
26
TRI-STATE
C669
C668 + PWRDN_Wof NC/10K 1/16W 5% 25
PWRDN
SMD/0402 24
CONFIG
NC/100uF 10V NC/0.1uF 50V 23
AUD_V33
VL
22
VDD
21
VDD
C670 C671 20
GND-REG
NC/0.1uF 50V NC/0.1uF 50V 19
GND-CLEAN
OUTB
NC/330pF 50V
SMD/0402
NC/22 OHM 1/8W
OUTA
L602
47UH
C648 0.1UF50V C651
R653 1N 50V
22 OHM 1/4W SMD/0402
C653
C649 R654 C650 1N 50V
C647
0.1UF50V 12R 220N 50V SMD/0402
330PF 50V
SMD/0402 C652
1N 50V
SMD/0402
L603
47UH
C654 0.1UF50V LSPK+
LSPK-
RSPK+
R655 RSPK-
C655 12R
0.1UF50V
L/R SPK
L604
47UH
C657 0.1UF50V C660
R656 1N 50V
22 OHM 1/4W
SMD/0402
R657 C662
C658 12R C659 1N 50V
C656 0.1UF50V 220N 50V SMD/0402
330PF 50V
SMD/0402 C661
1N 50V
SMD/0402
L605
47UH
C697 0.1UF50V
R658
C696 12R
0.1UF50V
Close to MT5365
U606
AL1O
1 FB634 +24V_16V
GND-SUB
OUTB OUTB
2 NC/120R/6000mA
OUT2B
3
Clos e to U606 Pin4&Pin7
OUT2B
4 1 2
VCC2B
5
GND2B
6 C672 C673
GND2A
7 + C676 AR1O
VCC2A
8 NC/1UF 50V NC/0.1uF 50V
NC/220UF 35V
OUT2A
9
OUT2A
10
OUT1B
11
OUT1B
12
VCC1B
13
GND1B
14 C674 C675
GND1A
15
VCC1A
16 NC/1UF 50V NC/0.1uF 50V
OUT1A
17 OUTA OUTA
OUT1A
18
NC
NC/STA515W
Clos e to U606 Pin12&Pin15
R/A
L601
2 1
C678
NC/22uH
NC/0.1uF 50V
C677 CN605
C682 WSPK- 2
WSPK+
1
R663 NC/CONN
WOFFER
C681
NC/22uH
NC/0.1uF 50V
2 1
L606
81
CN601
4
3
2
1
CONN
DV33
R680
4K7 1/16W 5%
HPOUTR
SMD/0402
HPOUTL
HP_DET#
R685 C663 C664 C665
NC/0.05R R679 10N 50V 100N 50V 100N 50V
R684 NC/0R05 1/10W 5% SMD/0402
NC/0.05R
R683
0.05R
R682
0.05R
HEADPHONE R/L OUTPUT
HeadPhone CKT
U607
TPA6132A2RTER
R666 R668 C690 1UF16V 1
INL-
4K7 1/16W 5% C686 4K7 1/16W 5% C687
SMD/0402 470P 50V SMD/0402 470P 50V 2
INL+
C736 1UF16V
3
INR+
R667 R669 C691 1UF16V 4
INR-
4K7 1/16W 5% C688 4K7 1/16W 5% C689
SMD/0402 470P 50V SMD/0402 470P 50V
C737 1UF16V
+5V_SW +5V_SW
R674 R676
NC/10K1/16W 10K 1/16W 5%
SMD/0402 SMD/0402
R675 R677
0R05 1/16W NC/0R05 1/16W
SMD/0402 SMD/0402
+24V_16V
+24V_16V 4,8
+12V/5V
+12V/5V 4,5
STB_PWR5V
STB_PWR5V 4
+5V_SW
+5V_SW 4,5,7,10,11,13,14,15
DV33
DV33 4,5,6,7,8,13,14,15,16
DV33SB
DV33SB 5,6,7,11,13,14
GND 4,5,6,7,8,10,11,12,13,14,15,16,17
I2S audio input for SPK AMP
AOMCLK
AOMCLK 6,8
AOLRCK
AOLRCK 6,8
BICKI1
BICKI1 6,8
AOSDATA0
AOSDATA0 6
PWM audio input for HP AMP
AL1O
AL1O 6
AR1O
AR1O 6
Audio Control
HP_SC_MUTE
HP_SC_MUTE 6
SPK_MUTE
SPK_MUTE 6
OFF_MUTE
PHONEJACK OFF_MUTE 8,10
SC_MUTE
SC_MUTE 8,10
HP_DET#
5
HP_DET# 15
4 AUD_RST
AUD_RST 15
3
2
6
7
1 I2C for SPK AMP
CN602
OSDA0
OSDA0 6,7,16
OSCL0
OSCL0 6,7,16
BICKI
BICKI 6,8
MCLK
MCLK 6,8
LRCLK
LRCLK 6,8
R670 10R 1/10W 5%
HPOUTL
FB635
1 2
+5V_SW
120R/3000mA
C692 R671 SMD/0402
10U 10V 4K7 1/16W 5%
OFF_MUTE
R672
4K7 1/16W 5%
SMD/0402
Q632 R673 SC_MUTE
BC847C 4K7 1/16W 5%
SMD/0402
C693
12
HPVDD
2.2uF 10V
11
CPP
10 C694
PGND
1UF16V
9
CPN
C695 2.2uF 10V
R678 10R 1/10W 5%
HPOUTR