LG 22LF15R (CHASSIS:LP81K) Service Manual ▷ View online
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.
R_SOUND_N
12V_AMP
HEADPHONE_OUT_R
1K
R515
100
R513
30uH
L500
1K
R516
30uH
L504
L_SOUND_P
150
R504
100K
R500
0
R510
L_SOUND_N
R_SOUND_P
AUDIO_L
0.1uF
5
0
V
C515
100
R511
30uH
L503
HEADPHONE_OUT_L
AUDIO_R
AMP_MUTE
0
R518
HP_DET
KDS181
D501
0
R502
30uH
L501
KDS181
D500
R_SOUND_N
L_SOUND_P
R_SOUND_P
L_SOUND_N
1000pF
50V
C524
1000pF
50V
C526
1000pF
50V
C527
1K
R501
4.7K
R505
1000pF
50V
C525
100uF
16V
C506
47uF
25V
C501
330uF
25V
C513
100K
R509
100K
R514
330uF
25V
C510
4.7uF
16V
C511
4.7uF
1
6
V
C514
3216
4.7uF
16V
C507
4.7uF
1
6
V
C508
0.01uF
C522
50V
0.01uF
C523
50V
0.01uF
C502
50V
0.01uF
C503
50V
1uF
10V
C505
1uF
10V
C509
1uF
1
0
V
C517
10uF
16V
C516
0.1uF
50V
C519
KDS181
D502
YDA138-EZ(D-3)
IC500
26
VOL0
27
VOL1
28
PVDDML
29
OUTML
30
PVSSL_1
31
PVSSL_2
32
PVSSL_3
33
PVSSL_4
34
PVSSL_5
35
OUTPL
36
PVDDPL
37
HP
38
INL
39
VREFL
40
PVDDREG
41
REFA
42
HPOL
17
SLEEPN
3
VSSBGR
6
MUTEN
16
PROTN
15
PVDDMR
14
OUTMR
13
PVSSR_5
12
PVSSR_4
11
PVSSR_3
10
PVSSR_2
9
PVSSR_1
8
OUTPR
7
PVDDPR
4
VREFR
5
INR
2
AVSS
21
XI
1
HPOR
20
XO
19
CKIO
18
DVSS
23
MODE0
24
MODE1
25
MODE2
22
DVDD
READY
R506
READY
R512
READY
R517
1uF
2
5
V
C512
10K
R508
1uF
10V
C520
1uF
10V
C518
5.1K
R507
READY
2.2uF
25V
C500
0.47uF
C504
50V
0.47uF
C521
50V
2SC3052
Q501
E
B
C
2SA1530A-T112-1R
Q500
E
B
C
SMAW250-04
P500
1
2
3
4
500-ohm
L508
500-ohm
L506
500-ohm
L507
500-ohm
L505
500-ohm
L512
500-ohm
L510
500-ohm
L511
500-ohm
L509
ST_5V
SPK L
SPK R
Headphone
4 9
AMP
MUTEN
HP
Output
HH
L
H
Speaker
H
eadphone
Mute
L
X
<Option>
2007/11/19
LP81K
AUDIO AMP
MADR[9]
MDATA[0-15]
MADR[2]
MCLK
MADR[4]
MADR[4]
0.1uF
50V
C400
MADR[11]
MADR[10]
RASZ
MADR[7]
MADR[6]
MADR[8]
MADR[1]
CKE
MADR[11]
MADR[0-11]
0.1uF
50V
C409
1K
R408
0.1uF
50V
C403
MADR[3]
MADR[5]
1K
R407
0.1uF
50V
C401
MADR[0]
MADR[5]
150
R406
MADR[9]
MADR[7]
MADR[1]
MADR[2]
0.1uF
50V
C406
CASZ
MADR[0]
0.1uF
50V
C408
0.1uF
50V
C402
LDQM
0.1uF
50V
C405
0.1uF
50V
C404
MADR[3]
MADR[10]
DQS1
WEZ
MCLKZ
MADR[6]
2.5V_DDR
1000pF
50V
C407
2.5V_DDR
MADR[8]
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.
SBA0
DQS0
SBA1
2.5V_DDR
UDQM
HY5DU281622FTP-5
IC400
26
BA0
27
BA1
28
A10/AP
29
A0
30
A1
31
A2
32
A3
33
VDD_3
34
VSS_1
35
A4
36
A5
37
A6
38
A7
39
A8
40
A9
41
A11
42
NC_4
43
NC_5
44
CKE
45
CK
46
/CK
47
UDM
48
VSS_2
49
VREF
50
NC_6
17
NC_2
3
VDDQ_1
6
VSSQ_1
16
LDQS
15
VDDQ_3
14
NC_1
13
DQ7
12
VSSQ_2
11
DQ6
10
DQ5
9
VDDQ_2
8
DQ4
7
DQ3
4
DQ1
5
DQ2
25
NC_3
24
/CS
23
/RAS
2
DQ0
22
/CAS
21
/WE
1
VDD_1
20
LDM
19
NC
18
VDD_2
51
UDQS
52
VSSQ_3
53
NC_7
54
DQ8
55
VDDQ_4
56
DQ9
57
DQ10
58
VSSQ_4
59
DQ11
60
DQ12
61
VDDQ_5
62
DQ13
63
DQ14
64
VSSQ_5
65
DQ15
66
VSS_3
1/16W
100
AR400
1/16W
100
AR401
1/16W
100
AR411
1/16W
100
AR410
0
R405
0
R409
MADR[6]
MDATA[0-15]
MDATA[0-15]
MDATA[0]
MADR[0-11]
MADR[4]
MDATA[1]
MDATA[8]
MDATA[10]
MDATA[9]
MDATA[7]
MDATA[11]
MDATA[12]
MDATA[6]
MDATA[2]
MDATA[13]
MADR[7]
MDATA[15]
MDATA[14]
MADR[8]
MADR[9]
MDATA[5]
MADR[11]
MDATA[4]
MDATA[3]
MADR[5]
3 9
DDR
2007/11/19
LP81K
DDR
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.
KST3906-MTF
Q302
E
B
C
100pF
50V
C308
12V_PANEL
4.7K
R311
LED_GR1
IR
PANEL_ON
100pF
50V
C307
LED_AM
KEY2
0.1uF
50V
C300
LED_AM1
LED_AM
4.7K
R313
LED_GR
4.7K
R312
KEY1
47pF
50V
C306
KST3906-MTF
Q303
E
B
C
100pF
50V
C305
100pF
50V
C303
4.7K
R310
LED_GR
100pF
50V
C304
RXE0+,RXE0-,RXE1+,RXE1-,RXE2+,RXE2-,RXE3+,RXE3-,RXEC+,RXEC-,RXO0+,RXO0-,RXO1+,RXO1-,RXO2+,RXO2-,RXO3+
,RXO3-,RXOC+,RXOC-
1000pF
50V
C302
SMW200-28C
P300
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
10K
R300
22K
R302
READY
SMAW200-03
P306
1
2
3
RL_ON
10K
R314
22K
R315
22K
R316
5V
R317
READY
22uF
16V
C309
100uF
16V
C311
1/4W
0
5%
R323
SI4925BDY
Q307
3
S2
2
G1
4
G2
1
S1
5
D
2_1
6
D
2_2
7
D
1_1
8
D
1_2
1uF
2
5
V
C310
2.2K
R324
C312
READY
0
R325
100uF
35V
C301
1/10W
1.3K
R319
1/10W
1.3K
R320
1/10W
1.3K
R321
1/10W
1.3K
R322
2SC3052
Q304
E
B
C
2SC3052
Q300
READY
E
B
C
2SC3052
Q305
E
B
C
12505WR-08A00
P307
1
2
3
4
5
6
7
8
9
KEY1
100
R326
100pF
50V
C313
0.1uF
50V
C314
MBW3216-501TF
L300
(5V_PANEL)
MBW3216-501TF
L304
BG2012B080TF
L305
BG2012B080TF
L306
BG2012B080TF
L307
BG2012B080TF
L308
BG2012B080TF
L310
BG2012B080TF
L309
ST_5V
10K
IR_OUT
R330
2SC3052
Q308
IR_OUT
E
B
C
10K
R329
IR_OUT
22
IR_OUT
R332
ST_5V
2SC3052
IR_OUT
Q309
E
B
C
47K
IR_OUT
R328
10K
IR_OUT
R331
0.1uF
50V
C315
IR_OUT
IR_OUT
ST_3.3V
ST_3.3V
ST_5V
ST_5V
0
R333
READY
0
READY
R334
MBW3216-501TF
(12V_PANEL)
L301
0
R327
5.6B
ZD300
READY
5.6B
ZD301
READY
5.6B
ZD302
READY
5.6B
ZD303
READY
5.6B
ZD304
READY
0.1uF
READY
C318
0.1uF
READY
C317
0.1uF
C316
READY
RXE3+
RXE3-
RXEC+
RXEC-
RXE2+
RXE2-
RXE1+
RXE1-
RXE0+
RXE0-
RXO3+
RXO3-
RXOC+
RXOC-
RXO2+
RXO2-
RXO1+
RXO1-
RXO0+
RXO0-
2 9
CONTROL
IR & LED
PANEL & Connector
2007/11/19
(1)
(1)
(1)
(1)
(1)
LG81K
[19"CMO LPL/22"LPL]
<Panel option>
LVDS
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