LG 55LB5500, Руководство по обслуживанию

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THERMAL
THERMAL
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
POWER
13/08/13
2 of 6
L14_NON_OS
ZD202
5V
OPT
PANEL_VCC
C208
0.1uF
25V
OPT
R234
100K
+3.5V_ST
C211
0.1uF
16V
R229
1.2K
1%
PANEL_CTL
R230
2.7K
1%
Q202
MMBT3904(NXP)
E
B
C
+12V
+3.5V_ST
POWER_ON/OFF
+12V
C232
0.1uF
POWER_DET
+3.3V_NORMAL
C222
0.1uF
16V
R213
10K
R233
0
OPT
+3.5V_ST
Q203
MMBT3904(NXP)
E
B
C
L203
UBW2012-121F
C207
10uF
6.3V
C201
10uF
6.3V
R206
1
+3.3V_NORMAL
IC204
APX803D29
RESET_IC_DIODES
1
GND
3
VCC
2
RESET
Q204
DMP2130L
FET_3.3V_DIODES
G
D S
POWER_DET_RESET
ZD201
2.5V
+1.8V_DDR
R235-*1
100
SOC3.5V
R236
4.7K
R238
10K
+3.5V_ST
C233
0.039uF
50V
R237
2.7K
1%
C228
270pF
50V
ZD203
2.5V
OPT
+1.15V_VDDC
C230
0.1uF
16V
C220
0.1uF
16V
OPT
C231
0.1uF
16V
C221
0.1uF
16V
OPT
C234
0.01uF
50V
C235
390pF
50V
R209
1K
+3.5V_ST
C200
1uF
10V
C206
0.1uF
50V
PWM_DIM
+3.5V_ST
C204
0.1uF
16V
R207
33K
OPT
R202
10K
RL_ON_Buffer
R210
10K
+12V
R201
10K
RL_ON_Direct
Q200
MMBT3906(NXP)
RL_ON_Buffer
1
2
3
+3.5V_ST
L201
CB2012PK501T
R200
10K
C205
4.7uF
50V
OPT
R208
100
Q201
MMBT3904(NXP)
E
B
C
R211
10K
+24V
+3.3V_NORMAL
INV_CTL
C203
4.7uF
16V
OPT
RL_ON
Q205
DMP2130L
FET_12V_DIODES
G
D S
R219
3.3K R223
3.3K
OPT
IC200
AZ1117EH-ADJTRG1
ADJ/GND
OUT
IN
C209
4.7uF
10V
C214
10uF
6.3V
C226
10uF
6.3V
OPT
PWM_DIM2
IC203 TPS5432DDAR
3
PH
2
VIN
4
GND
1
BOOT
5
VSENSE
6
COMP
7
EN
8
SS
9
[EP]GND
R215
10K
R214
4.7K
R217
12K
R216
1.8K
C210
10uF
16V
C202
10uF
10V
C227
22uF
16V
R224
15K
C212
100pF
50V
OPT
/MHL_OCP_DET
R222
100K
C218
0.047uF
25V
R218
4.7K
OPT
C223
82pF
50V
USB1_OCD
+5V_USB
C213
4700pF
50V
R226
10
+5V_NORMAL
AVDD_5V_MHL
D200
30V
MBR230LSFT1G
MHL_5V_EN
R220
4.7K
C216
10uF
16V
5V_HDMI
R221
0
OPT
+3.3V_NORMAL
USB1_CTL
R227
3.3K
1%
R225
100K
OPT
TPS65282REGR
IC201
1
EN
3
SS
7
FAULT2
9
SW_OUT2
10
RLIM
11
AGND
12
SW_OUT1
13
SW_IN_1
14
SW_IN_2
15
FB
16
LX_1
17
LX_2
18
BST
19
PGND_1
20
PGND_2
21
VIN_1
22
VIN_2
23
PGOOD
24
V7V
5
EN_SW2
8
FAULT1
6
EN_SW1
4
ROSC
2
COMP
25
[EP]GND
10uF
16V
C215
+3.3V_NORMAL
+12V
R228
18K
1%
MHL_OCP_EN
MHL_CD_SENSE
IC202
74LVC1G08GW
GateIC_STC
3
GND
2
A
4
Y
1
B
5
VCC
MHL_5V_EN
C219
10uF
16V
C217
10uF
10V
P200
SMAW200-H18S5
14
12V
9
24V
4
PDIM#1
18
GND
13
12V
8
PDMI#2
3
3.5V
17
GND
12
GND
7
GND
2
DRV ON
16
NC
11
GND
6
3.5V
1
PWR ON
15
12V
10
24V
5
3.5V
19
.
+3.3V_NORMAL
R212
10K
R204
2.7K
1%
R205
1.2K
1%
R203
0
RL_ON_Direct
L205
4.7uH
L207
3.6uH
L204
PZ1608U121-2R0TF
AR200 10K 1/16W
R235
300
SOC_RESET_PD_IC
VA201
ICVS0518150FR_
OPT
IC202-*1
TC7SZ08FU_TOSHIBA
CI_GateIC_Toshiba
3
GND
2
IN_A
4
OUT_Y
1
IN_B
5
VCC
Q205-*1
PMV48XP
FET_12V_NXP
G
D S
L202
MLB-201209-0120P-N2
L200
MLB-201209-0120P-N2 Q204-*1
PMV48XP
FET_3.3V_NXP
G
D S
IC204-*1
BD48K28G
CI_RESET_IC_ROHM
1
GND
2
VOUT
3
VDD
VA200
5.5V
C229
10uF
10V
L206
CB2012PK501T
R232
20K
1%
R231
47K
1%
C236
0.33uF
16V
C224
22uF
6.3V
C225
22uF
6.3V
C237
1000pF
50V
ZD200
5V
SEMTECH_3.3V_TVS
PANEL_Vcc
+1.8V_DDR
+3.5V_ST --> 3.375V --> 3.46V
+3.3V_Normal
L14 K-TASK POWER BLOCK
Power_DET
R1
R2
Vout=1.25*(1+R2/R1)
+12V --> 3.58V --> 3.82V (3.68V)
3A
R1
+1.15V_VDDC
R2
Vout=0.808*(1+R1/R2)
+5V_USB & MHL W/ OCP
FROM LIPS or POWER B/D
Vgs=8.15V
Vgs=3.04V
16K(1.6A)->14K(1.8A)
4A
Vout=0.8*(1+R1/R2)
R2
R1
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