Read LG 22LT380C / 22LT380H (CHASSIS:LD2AY) Service Manual 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.
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.
4.7K
R383
AMP_MUTE
NEC_RX
22
R397
EXT5V_CTRL
10K
R381
FLMD0
AMP_RESET
NEC_DBG_TX
NEC_IR
+3.5V_ST
+3.5V_ST
22
R370
+5V_ST
2SA1504S
Q310
E
B
C
SCART1_MUTE
10K
R382
4.7K
R373
R373
2SA1504S
Q308
E
B
C
22
R350
PKLCS1212E4001-R1
BU300
1
2
22
R331
OPT
22
R398
MICOM_RESET
EEPROM_SW
22
R313
POWER_ON/OFF_1
22
R327
+3.5V_ST
22uF
25V
25V
3 . 3 V t o 5 V
C303
10K
CLOCK
R303
22
R346
TOOL1
UART_DBG_SW
4.7K
R372
R372
22
R328
+5V_ST
+5V_ST
0
R362
22
R319
22
R367
OPT
22
R322
MICOM_RESET
POWER_DET
22
R351
10K
R379
0
R334
13pF
C305
TOOL0
4.7K
R371
R371
22
R399
CEC_REMOTE_NEC
UART_SW2
10K
NON_CLOCK
R302
13pF
C307
4.7K
R384
RL_ON
22
R325
22
OPT
R324
22
R337
CLOCK_SDA
PANEL_CTL
BLM18PG121SN1D
L302
+5V_ST
MST_NEC_TX
22
R366
22
R344
MODEL1_OPT_2
10MHz
X300
47K
R352
22
R332
FLMD0
22
R329
CLOCK_SCL
MST_NEC_RX
+3.5V_ST
+3.5V_ST
2 . 2 u F
10V
10V
3 . 3 V t o 5 V
C302
2SA1504S
Q309
E
B
C
JTP-1127WEM
SW300
1
2
4
3
22
R357
22
R368
TOOL0
22
R321
OPT
IR_OUT_CTRL
22
R369
2SA1504S
Q307
E
B
C
SIDE_HP_MUTE
THERMAL
SC632ULTRT
3 . 3 V t o 5 V
IC300
3
C1-
2
C1+
4
IN
1
GND
5
EN
6
OUT
7
C2+
8
C2-
9
[EP]GND
22
R316
NEC_TX
NEC_DBG_RX
2 . 2 u F
10V
10V
3 . 3 V t o 5 V
C301
10K
R378
+3.5V_ST
LED_R/BUZZ
EXT_PWR_DET
22
OPT R318
22
R355
4.7K
R312
MODEL1_OPT_0
22
R353
22
R336
22
R330
INV_CTL
22
R354
4.7K
R310
KEY1
EXT12V_CTRL
2SA1504S
Q306
E
B
C
+5V_ST
22
OPT
R356
TOOL1
0
R361
22
R323
BLM18PG600SN1D
L301
UART_SW1
22uF
25V
25V
3 . 3 V t o 5 V
C300
1M
R345
SUB_AMP_MUTE
+5V_ST
12507WS-06L
P300
1
2
3
4
5
6
7
22
R365
KEY2
NEC_EEPROM_SCL
NEC_EEPROM_SDA
10K
R333
OPT
DBG_SW
KID65003AF
IC303
3
I 3
2
I 2
4
I 4
1
I 1
6
I 6
5
I 5
7
I 7
8
GND
9
COMMON
10
O7
11
O6
12
O5
13
O4
14
O3
15
O2
16
O1
22
R360
100K
R348
22
R349
22
R320
UPD78F1164GF(S)
NEC_MICOM
IC301
1
P60/SCL0
2
P61/SDA0
3
P62
4
P63
5
P31/TI03/TO03/INTP4
6
P64/RD
7
P65/WR0
8
P66/WR1
9
P67/ASTB
10
P77/EX23/KR7/INTP11
11
P76/EX22/KR6/INTP10
12
P75/EX21/KR5/INTP9
13
P74/EX20/KR4/INTP8
14
P73/EX19/KR3
15
P72/EX18/KR2
16
P71/EX17/KR1
17
P70/EX16/KR0
18
P06/WAIT
19
P05/CLKOUT
20
EVSS1
21
P80/EX0
22
P81/EX1
23
P82/EX2
24
P83/EX3
25
P84/EX4
26
P85/EX5
27
P86/EX6
28
P87/EX7
29
P30/INTP3/RTC1HZ
30
EVDD1
31
P50/EX8
32
P51/EX9
33
P52/EX10
34
P53/EX11
35
P54/EX12
36
P55/EX13
37
P56/EX14
38
P57/EX15
39
P17/EX31/TI02/TO02
40
P16/EX30/TI01/TO01/INTP5
41
P15/EX29/RTCDIV/RTCCL
42
P14/EX28/RXD3
43
P13/EX27/TXD3
44
P12/EX26/SO00/TXD0
45
P11/EX25/SI00/RXD0
46
P10/EX24/SCK00
47
AVREF1
48
P110/ANO0
49
P111/ANO1
50
AVREF0
51
AVSS
52
P157/ANI15
53
P156/ANI14
54
P155/ANI13
55
P154/ANI12
56
P153/ANI11
57
P152/ANI10
58
P151/ANI9
59
P150/ANI8
60
P27/ANI7
61
P26/ANI6
62
P25/ANI5
63
P24/ANI4
64
P23/ANI3
65
P22/ANI2
66
P21/ANI1
67
P20/ANI0
68
P130
69
P131/TI06/TO06
70
P04/SCK10/SCL10
71
P03/SI10/RXD1/SDA10
72
P02/SO10/TXD1
73
P01/TO00
74
P 0 0 / T I 0 0
75
P145/TI07/TO07
76
P144/SO20/TXD2
77
P143/SI20/RXD2/SDA20
78
P142/SCK20/SCL20
79
P141/PCLBUZ1/INTP7
80
P140/PCLBUZ0/INTP6
81
P120/INTP0/EXLVI
82
P47/INTP2
83
P46/INTP1/TI05/TO05
84
P45/SO01
85
P44/SI01
86
P43/SCK01
87
P42/TI04/TO04
88
P41/TOOL1
89
P40/TOOL0
90
RESET
91
P124/XT2
92
P123/XT1
93
FLMD0
94
P122/X2/EXCLK
95
P121/X1
96
REGC
97
VSS
98
EVSS0
99
VDD
100
EVDD0
+3.5V_ST
22
R326
10K
R358
4.7K
R374
R374
22
R347
74LX1G14CTR
IC302
3
GND
2
1A
4
1Y
1
NC
5
VCC
+3.5V_ST
2 . 2 u F
10V
10V
C308
10K
R380
BLM18PG600SN1D
3 . 3 V t o 5 V
L300
4.7K
R376
R376
+5V_ST
SOC_RESET
/PI_RESET_NEC
CEC_ON/OFF
12507WR-12L
P301
1
2
3
4
5
6
7
8
9
10
11
12
13
MODEL1_OPT_1
MODEL1_OPT_2
MODEL1_OPT_0
MODEL1_OPT_1
10K
OPT
R308
10K
OPT
R309
10K
OPT
R311
10K
OPT
R317
0.1uF
16V
C304
0.1uF
16V
C306
0 . 1 u F
16V
16V
C309
MMBT3904(NXP)
Q301
E
B
C
MMBT3904(NXP)
Q302
E
B
C
MMBT3904(NXP)
Q303
E
B
C
MMBT3904(NXP)
Q304
E
B
C
MMBT3904(NXP)
Q305
E
B
C
5V_ON/OFF
22
R315
5V_ON/OFF
10K
R300
3 . 3 V t o 5 V
SIGN190368
MODEL_OPT_3
MICOM MODEL OPTION
Closed to Crystal
S t e p U p r e g u l a t o r 3 . 3 V t o 5 V ( M A X 2 5 0 m A )
MODEL OPTION
78
HIGH
80
MODEL_OPT_2
MODEL_OPT_0
PIN NAME
79
MODEL_OPT_1
PIN NO.
LOW
2 0 1 1 . 0 8 . 2 1
3 2 0
EMEA INTERACTIVE
SUB MICOM
GP4_MSTAR
CLOCK
OPT
OPT
OPT
OPT
NON_CLOCK
C a n n o t u s e G P I O - P 6 2 , P 6 3
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