LG 26LQ630H Service Manual page 35

JK1500
NC
2
ON/OFF
1
CH_UP CH_DN
3 6
AUDIO
5
COM
4
P_GND
D r a w i n g w i t h L i n e p a t t e r n
U n i v e r c i a l P i l l o w V o l t a g e
014:D10;014:L10;014:U28;014:AK11
5VD
R1555
014:H13;014:L10;014:U28;014:AK11
5VD
1/4W
5%
10
R1553
C1517
10uF
16V
C
016:AA11
Q1504 B
2SC3875S(ALY) SEL_PILLOW_0
E
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.
w s p e a k e r / H P
Copyright ⓒ 2012 LG Electronics. Inc. All right reserved.
Only for training and service purposes
T1501
EFD3030(APPLIED FOR BPR)
12 1
11 2
C1503 C1509
0 . 1 u F 9 22000pF
50V
50V
8 5
UPS_Power
7 6 GND
0
R1511
GND
0 1 4 : I 6 ; 0 1 4 : N 1 8
12VDC_1
R1517 R1522
1K 470
1/10W 1/10W
5% 5%
0 1 4 : I 6 ; 0 1 4 : N 2 0
12VDC_1
R1518 R1523
1K 470
1/10W 1/10W
5% 5%
USP_1 12VD
1/10W 1%
200
014:D10;014:H13;014:U28;014:AK11
5VD
12VD
1/4W 5%
10
R1558
C1525
10uF
16V
OPT
L1505
C
016:AA11
Q1506 B
2SC3875S(ALY) SEL_PILLOW_1
C1500
0 . 1 u F
50V
E
12VDC_1
+3.5V_ST
PILLOW_OUT 5VD
014:AO25
10K
R2717
IC1501
PC17L1(5V/35V 4P)
R1534 R1547
33 33
1 4
P_CH_UP
016:A17
2 3
IC1502
PC17L1(5V/35V 4P)
R1535
1 4 33
2 3
IC1503
PC17L1(5V/35V 4P)
R1542
33
1 4
P_ON_OFF
0 1 6 : I 1 7
2 3
IC1504
PC17L1(5V/35V 4P)
R1539
1 4 33
P_CH_DN
016:A18
2 3
GND
USP_1 UPS_Power
C1501
0 . 1 u F
50V
P_GND
D r a w i n g w i t h L i n e p a t t e r n
USP_1
Pillow PWM AMP
+12V/+15V
+5V_Normal
10K
R2705
10K
R2701
PILLOW_MUTE_INV
014:AF24
C
4.7K
B
R2702
Q2701
C 014:AB25 4.7K
2SC3052 E
PVCCL_1
PILLOW_MUTE_INV
001:AL22;009:U20;016:AF16
B R2772
PILLOW_MUTE
Q2700
2SC3052 E
PVCCL_2
R2709
0
C2704
002:V10 0 . 1 u F
PILLOW_SPK
C2705
0 . 1 u F
AGND_1
AGND_2
PVCCR_1
VCLAMP
PVCCR_2
C2700 C2701
1uF 1uF
25V 25V
C2706
C2702
0 . 1 u F
10uF 50V
35V
P i l l o w P o w e r C o n t r o l
R1550
22K
C1520
2 . 2 u F
25V
R1551
2.2K
C
Q1503
Pillow_POWER_MANAGE
B
R1544
47K
E
+12V_C
+12V_C
C1518
2 . 2 u F
25V
R1545
47K
R1546
47K
Q1502 C
R1533
Pillow_POWER_MANAGE
47K
B
E
LA1EY
S 6 5 0 0 ( S a t u r n 7 L R )
G a i n 1
G a i n 0
( d B )
0 0
20
0 1 26
1 0
32
1 1 36
C2720
C2721
0 . 1 u F
10uF
C2707
50V 35V
0 . 1 u F
50V
PILLOW_OUT
L2705 R2712 C2712 C2714
IC2700
22.0uH 4.7K 2 . 2 u F 2 . 2 u F
TPA3124D2PWPR 50V 50V
L2704
22.0uH
PGNDL_2
1 24 C2713 C2715
R2713
2 . 2 u F 2 . 2 u F
4.7K
50V 50V
SD PGNDL_1
2 23
LOUT C2716
3 22
22uF
25V R2716
C2709
0 . 2 2 u F
MUTE BSL
4 21 25V
LIN AVCC_2
5 20
RIN AVCC_1
6 19
R2710
10K
BYPASS GAIN0
R2714
7 18
10K
GAIN1
8 17
OPT OPT
R2711 R2715
BSR
10K 10K
9 16
C2708
0 . 2 2 u F
ROUT
25V
10 15
PGNDR_2
11 14
PGNDR_1
12 13
C2710 C2711
0 . 1 u F 10uF
50V 35V
+5V_ST
0 1 4 : D 1 0 ; 0 1 4 : H 1 3 ; 0 1 4 : L 1 0 ; 0 1 4 : U 2 8
5VD
Q1505
AO4813
S2 1 8 D2_2 12VD
C1521
100uF
G2 2 7 D2_1
16V
S1 3 6 D1_2
G1 4 5 D1_1
C1523
22uF
25V
C1519
47uF
25V
2 0 1 1 . 0 8 . 1 6
P i l l o w / H P 1 4 1 4
LGE Internal Use Only
200