LG 32LG3DCH (CHASSIS:LA76B) Service Manual ▷ View online
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EXPLODED VIEW
Many electrical and mechanical parts in this chassis have special safety-related characteristics. These
parts are identified by in the Schematic Diagram and EXPLODED VIEW.
It is essential that these special safety parts should be replaced with the same components as
recommended in this manual to prevent X-RADIATION, Shock, Fire, or other Hazards.
Do not modify the original design without permission of manufacturer.
parts are identified by in the Schematic Diagram and EXPLODED VIEW.
It is essential that these special safety parts should be replaced with the same components as
recommended in this manual to prevent X-RADIATION, Shock, Fire, or other Hazards.
Do not modify the original design without permission of manufacturer.
IMPORTANT SAFETY NOTICE
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.
CKE
001:S25;002:N9
0.1uF 50V
C209
MDATA[0-31]
001:X19
+2.6V_MVDD
002:C17;002:N11;002:P17;002:Z17;002:AB11;007:AG24
0.1uF
50V
C211
0.1uF
50V
C215
DQS0
001:J26
0.1uF
50V
C202
+2.6V_MVDD
002:C17;002:M17;002:N11;002:P17;002:AB11;007:AG24
DQM0
0.1uF
50V
C201
DQM3
0.1uF
50V
C203
0.1uF
50V
C212
DQS2
001:V24
0.1uF
50V
C214
CKE
001:S25;002:AB9
0.1uF
50V
C216
0.1uF
50V
C204
0.1uF
50V
C218
+2.6V_MVDD
DQM1
001:M25
DQS3
001:V19
0.1uF
50V
C207
+2.6V_MVDD
DQM2
DQS1
001:O25
0.1uF
50V
C213
0.1uF
50V
C200
0.1uF
50V
C205
MADR[0-12]
MADR[0-12]
001:AE17;002:N8
300
R215
300
R210
MCLKZ
001:T25;002:N10
MCLK
MCLKZ
001:T25;002:AB10
MCLK
001:S25;002:AB9
1K
1%
R220
1K
1%
R208
1K
1%
R206
1K
1%
R217
0.1uF
50V
C210
+2.6V_MVDD
+2.6V_MVDD
002:M17;002:N11;002:P17;002:Z17;002:AB11;007:AG24
22
R234
22
R235
22
R233
22
R232
CASZ_DDR
002:L3;002:Q9
BA0_DDR
002:L4;002:Q9
RASZ_DDR
002:L3;002:Q9
WEZ_DDR
002:L3;002:Q10
BA1_DDR
002:L4;002:Q8
BA1_DDR
WEZ_DDR
CASZ_DDR
RASZ_DDR
BA0_DDR
3225
22uF
16V
C221
3225
22uF
16V
C220
33
AR201
33
AR205
33
AR203
33
AR207
33
AR200
33
AR208
33
AR204
33
AR206
33
R209
33
R203
33
R213
33
R207
33
R202
33
R221
33
R214
33
R216
0.1uF
50V
C206
0.1uF
50V
C217
HY5DU561622FTP-4-C
IC200
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
A12
43
NC_4
44
CKE
45
CLK
46
/CLK
47
UDM
48
VSS_2
49
VREF
50
NC_5
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_6
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
HY5DU561622FTP-4-C
IC201
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
A12
43
NC_4
44
CKE
45
CLK
46
/CLK
47
UDM
48
VSS_2
49
VREF
50
NC_5
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_6
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
56
R205
56
R204
56
R222
CASZ_DDR
002:D9;002:Q9
BA1_DDR
002:D8;002:Q8
BA0_DDR
002:D9;002:Q9
BA1
001:P25
56
R224
RASZ_DDR
002:D9;002:Q9
WEZ_DDR
002:D10;002:Q10
BA0
001:P25
56
R225
56
R223
CASZ
001:O25
56
R226
RASZ
001:O25
WEZ
001:O25
MADR[2]
MADR[5]
MADR[10]
MDATA[13]
MDATA[1]
MDATA[21]
MADR[1]
MDATA[16]
MDATA[0]
MDATA[20]
MDATA[19]
MDATA[3]
MDATA[9]
MDATA[18]
MADR[3]
MDATA[0-31]
MDATA[0-31]
MADR[11]
MDATA[2]
MDATA[10]
MDATA[12]
MDATA[8]
MDATA[5]
MADR[8]
MDATA[17]
MDATA[4]
MADR[0]
MADR[9]
MADR[7]
MDATA[11]
MDATA[28]
MDATA[29]
MDATA[24]
MDATA[25]
MDATA[26]
MDATA[27]
MADR[12]
MADR[6]
MADR[4]
MADR[3]
MADR[1]
MADR[2]
MADR[0]
MADR[10]
MADR[11]
MADR[9]
MADR[12]
MADR[5]
MADR[7]
MADR[8]
MADR[6]
MADR[4]
MDATA[7]
MDATA[6]
MDATA[15]
MDATA[14]
MDATA[23]
MDATA[22]
MDATA[31]
MDATA[30]
DDR
2008.3.14
2 12
DDR
1 mil = 0.0254 mm
20 mil = 0.508 mm
40 mil = 1.016 mm
ADDRESS TOTAL LENGTH < 3000 mil (76.2mm)
DDR1 & DDR2 different length range = +/- 25 mil (max +/- 50 mil)
32LG3DCH
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.
GND
0.1uF
50V
C310
+5V_ST
KST3906-MTF
Q304
OPT
E
B
C
GND
4.7K
R321
OPT
LED_GR1
009:Z31
LED_AM
003:P14
4.7K
R323
OPT
LED_AM1
009:Z31
4.7K
R324
OPT
KEY_CTL_0
009:AL27
0.1uF
50V
C307
KEY_CTL_1
009:AL27
KST3906-MTF
Q305
OPT
E
B
C
LED_GR
003:P15
3.3K
R320
R320
3.3K
R318
R318
1000pF
50V
C306
0.1uF
C305
PANEL_POWER
007:I15
+3.3V_IR
1/10W
2K
R301
1/10W
2K
R300
220uF
16V
C301
12505WR-08A00
P304
8PIN
1
2
3
4
5
6
7
8
9
100pF
50V
C315
IR
001:R7;009:AG6
0.1uF
50V
C313
1000pF
50V
C314
+5V_ST
OPT
R332
1000pF
50V
C316
LED_GR
003:U9
LED_AM
003:U11
1000pF
50V
C317
GND
0
R312
OPT
SMW200-26C
P301
19
14
9
4
18
13
8
3
17
12
7
2
16
11
6
1
20
15
10
5
21
22
23
24
25
26
0
R333
R333
OPT
+3.3V_VDDP
0
R334
0
R335
R335
+3.3V_VDDP
0
R337
100
R339
100
R340
4.7K
R
3
3
6
OPT
4.7K
R
3
3
8
OPT
0
OPT
R345
4.7K
R322
OPT
+5V_ST
0
R342
0
R341
+5V_ST
0
OPT
R343
0
R344
BG2012B080TF
L314
BG2012B080TF
L311
BG2012B080TF
L315
BG2012B080TF
L308
BG2012B080TF
L317
BG2012B080TF
L316
BG2012B080TF
L309
MBW3216-501TF
L313
12505WS-15A00
P302
15PIN
1
2
3
4
5
6
7
8
9
10
11
12
13
14
16
15
5.1V
ZD300
5.1V
ZD301
5.1V
ZD302
5.1V
ZD303
5.1V
ZD304
RXE_0N
RXE_1N
RXE_2N
RXE_CKN
RXE_3N
RXE_0P
RXE_1P
RXE_2P
RXE_CKP
RXE_3P
(1)
FROM LGE1854B[LVDS AND TTL]
IR & LED & CONTROL
(1)
Module&Ctl
2008.3.14
3 12
Module
32LG3DCH
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