LG 37LH250H Service Manual page 28

+1.8V_AMP & +24V_AMP
IC601
AZ1117H-1.8TRE1(EH13A)
+3.3V
INPUT ADJ/GND
3 1
2
OUTPUT
C646
C647
22uF
16V 0.1uF
GND
16V
+24V_AMP
+24V_AUDIO
L602
CB3216PA501E
NTP3100L
+3.3V
L605
R601
008:AB21 100
AMP_RST
C606
1000pF
50V
R603
008:V26
0
AUDIO_MASTER_CLK
1uF
+1.8V_AMP
+1.8V_AMP
C608
0.1uF
L604
C607
C604 1000pF
R600
L603
50V
0
100pF
R602
50V
3.3K
C600 C603
C605
C601 10uF
10uF 0.1uF
0.1uF
16V 16V
16V 16V
Mstar Application
R604 100
008:V26 MS_LRCH
R605 100
008:V26 MS_LRCK
R606 100
008:V26 MS_SCK
R607 100
008:AI4;010:B8 SDA_SUB/AMP
R608 100
008:AI4;010:B10 SCL_SUB/AMP
C609
33pF
50V
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
AMP
EXTERNAL SPEAKER OUT
E
2SA1530A-T112-1R
Q1104
+1.8V_AMP
B
C
C
B Q1103
EXT_SPK
2SC3875S(ALY)
008:V28
E
C2139
R2227
15pF
1.6K
50V
OPT
C2141
C648
C649 0.1uF
0.1uF
22uF
16V 16V
003:AF24
EXT_SPK_L-
+24V_AMP
R625
3.3
C643
C615
0.01uF
C602 0.01uF
50V
C620
C625 68uF
0.1uF
0.1uF
50V 50V
C614
22000pF
C618
50V
22000pF
50V
C619
1uF
16V
BST1A NC C622
1 42
C611
16V 1uF
VDR1A VDR2A C624
41
2
10V SIGN85 22000pF
RESET BST2A
3 40
50V
AD PGND2A_2
4 39
DVSS_1 38 PGND2A_1
5
VSS_IO OUT2A_2
6 IC600 37
CLK_I 36 OUT2A_1
7
VDD_IO PVDD2A_2
8 35
EAN60664001
DGND_PLL 34 PVDD2A_1
9
AGND_PLL PVDD2B_2
10 33
LFM PVDD2B_1
11 NTP-3100L 32
AVDD_PLL OUT2B_2
12 31
DVDD_PLL OUT2B_1
13 30
TEST0 PGND2B_2
14 29
+24V_AMP
+1.8V_AMP
C626
C627
0.01uF
0.1uF
50V
50V
C610 C617
1uF
10uF C613
10V C623
10V 0.1uF
16V
22000pF
50V
C616
33pF
50V
OPT
R627 47K
C612
33pF
+3.3V_ST
50V
R611
R610 0 10K
C
R612
B
Q600
R609
2SC3052
33K OPT 10K
E
C2143 C2144
10uF
0.1uF
16V
IC300
TPA6011A4PWPRG4
PGND_1 ROUT+
1 24
OPT
ROUT- SE/BTL R2235
2 23
PVDD_1 HP/LINE
3 22
R2231
0 R2234
RHPIN VOLUME 3.3K
4 21
RLINEIN SEDIFF
5 20
RIN SEMAX
6 19
R2229
OPT
VDD AGND
7 18
LIN BYPASS
8 17
C2145
LLINEIN FADE OPT 1uF
9 16
50V
R2230
LHPIN SHUTDOWN
10 15
PVDD_2 LOUT+
11 14
EXT_SPK_L+
LOUT- PGND_2
12 13 003:AF24
L606
R613
DA-8580
D601
100V 5.6
EAP38319001
OPT
2S 2F
C629
1000pF
50V
1S 1F
C630
1000pF
D602
50V
100V
OPT R614
5.6
R615 L607
DA-8580
D603 5.6
EAP38319001
100V
2S 2F
OPT C631
1000pF
50V
1S 1F
C632
1000pF
D604
50V
100V
OPT
R616
5.6
R626
3.3
C644
C645
C628
0.1uF 0.01uF
68uF
50V 50V
POWER_DET
AMP_MUTE
008:C13
+5V_GENERAL
L300
CB3216PA501E
SUB_MUTE
008:AB19;003:AC20
EXT_SPK_L-
003:P20
EXT_SPK_L+
003:W20
+5V_GENERAL
4.7K
R2240
R2237
100
R2239
9.1K
C
B
SUB_MUTE
Q1105
008:AB19;003:Z25
E
2SC3052
SPEAKER_L
SPK_L+ 003:AK13
C639
0.01uF
50V
R617
C635
R621
0.1uF
4.7K
50V
3.3
C633
0.47uF
50V
R622
C636 3.3
0.1uF R618
50V C640
4.7K 0.01uF
50V
SPK_L- 003:AK13
SPEAKER_R
SPK_R+ 003:AK12
C641
0.01uF
C634 C637 R619
0.47uF 50V
50V 0.1uF 4.7K R623
50V
3.3
R624
3.3
C638 R620
C642
0.1uF 4.7K
0.01uF
50V
50V
SPK_R- 003:AK12
8
SHIELD_PLATE
6B
T_TERMINAL2
7B
B_TERMINAL2
5
0 T_SPRING
R2250
4
0 R_SPRING
R2251
7A
B_TERMINAL1
C2148
C2149
6A
1uF OPT 1uF T_TERMINAL1
OPT
10V 10V
3
E_SPRING
PEJ024-01
JK300
WAFER-ANGLE
L608
120-ohm
003:AD16 SPK_L+
4
L609
120-ohm
003:AD14 SPK_L-
3
L611
120-ohm SIGN88
003:AD12 SPK_R+
2
L610
120-ohm
SIGN68
003:AD9 SPK_R-
1
P600
09.05.19
37LH250H
Audio Amp
3 14