LG 32LN570B (CHASSIS:LT33B) Service Manual ▷ View online
- 33 -
PM
IC
TP
S6
51
78
R
SL
B
oo
st
C
on
ve
rte
r
B
uc
k 1
c
on
ve
rte
r(V
C
C
)
B
uc
k 2
c
on
ve
rte
r(V
co
re
)
B
uc
k 3
c
on
ve
rte
r(H
Vd
d)
B
uc
k 4
c
on
ve
rte
r(V
C
C
18
)
Po
sit
iv
e C
ha
rg
e P
um
p C
on
tro
lle
r
N
eg
ati
ve
C
ha
rg
e P
um
p C
on
tro
lle
r
6-C
h G
am
m
a B
uff
er(
D
A
C
ou
tp
ut)
Vc
om
re
fe
re
nc
e &
g
ain
R
es
et
PA
N
EL
_V
C
C
VC
C
18
VC
C
H
Vd
d
Vd
d
VC
O
M
_P
VC
O
M
_N
G
AM
4/5
/7
/1
2/1
4/1
5
C
TR
LN
SW
P
SW
N
C
TR
LP
VC
O
M
_L
O
O
P
PM
IC
_R
ES
ET
Vc
or
e
Le
ve
l S
hif
t
TP
S6
51
98
R
U
YR
TR
/
D
io
de
TR
/
D
io
de
VG
L
VG
H
- 34 -
M
TK
A
2
U
SB
1
U
SB
_D
P1
U
SB
_D
M
1
[U
SB
_D
P_
P2
]
[U
SB
_D
M
_P
2]
U
SB
2
U
SB
_D
P2
U
SB
_D
M
2
[G
PIO
43
]
[G
PIO
46
]
O
C
P
O
C
P
+5
V_
U
SB
_1
+5
V_
U
SB
_2
/U
SB
_O
C
D
1
U
SB
_C
TL
1
U
SB
_C
TL
2
/U
SB
_O
C
D
2
U
SB
_W
IF
I
W
IF
I_D
M
W
IF
I_D
P
M
oti
on
R
em
ote
R
ec
eiv
er
M
oti
on
R
em
ote
R
ec
eiv
er
M
_R
EM
O
TE
_R
X
M
_R
EM
O
TE
_T
X
M
_R
FM
od
ule
_R
ES
ET
[U
1R
X]
[U
1T
X]
[O
PC
TR
L4
9]
[O
PC
TR
L5
0]
[U
SB
_D
M
_P
3]
[U
SB
_D
P_
P3
]
R
EN
ES
AS
M
IC
O
M
[U
0T
X]
[U
0R
X]
SO
C
_T
X
SO
C
_R
X
U
SB
_D
P3
+5
V_
U
SB
_3
U
SB
_C
TL
3
/U
SB
_O
C
D
3
[U
SB
_D
M
_P
1]
[U
SB
_D
P_
P1
]
[G
PIO
42
]
[T
C
O
N
12
]
[U
SB
_D
M
_P
0]
[U
SB
_D
P_
P0
]
U
SB
3
U
SB
_D
M
3
[G
PIO
44
]
[A
D
IN
2_
SR
V]
C
TS
R
TS
[A
D
IN
4_
SR
V]
4P
in
d
eb
ug
gin
g
w
afe
r
- 35 -
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.
IMPORTANT SAFETY NOTICE
A2
A9
A10
900
200
400
540
521
570
530
500
301
910
120
300
510
123
122
121
Set + Stand
Stand Base
+
Stand Body
LV
1
AT
1
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.
MT5398_TS_OUT[1]
CI_ADDR[5]
EMMC_DATA[6]
MT5398_TS_OUT[6]
CI_ADDR[4]
FE_DEMOD1_TS_DATA[1]
MT5398_TS_OUT[4]
CI_ADDR[12]
EMMC_DATA[3]
CI_DATA[1]
FE_DEMOD1_TS_DATA[6]
MT5398_TS_OUT[3]
CI_DATA[5]
EMMC_DATA[4]
FE_DEMOD1_TS_DATA[0]
CI_ADDR[6]
CI_ADDR[11]
MT5398_TS_OUT[2]
CI_ADDR[10]
CI_DATA[2]
MT5398_TS_OUT[7]
CI_ADDR[14]
CI_ADDR[9]
MT5398_TS_OUT[0]
FE_DEMOD1_TS_DATA[3]
EMMC_DATA[5]
CI_ADDR[13]
EMMC_DATA[2]
FE_DEMOD1_TS_DATA[5]
CI_DATA[3]
CI_DATA[6]
CI_DATA[0]
CI_ADDR[7]
CI_DATA[7]
CI_ADDR[8]
CI_ADDR[1]
EMMC_DATA[7]
FE_DEMOD1_TS_DATA[4]
CI_ADDR[2]
FE_DEMOD1_TS_DATA[7]
MT5398_TS_OUT[5]
CI_ADDR[0-14]
FE_DEMOD1_TS_DATA[2]
CI_DATA[4]
CI_ADDR[0]
CI_ADDR[3]
R111
33
EMMC_RST
SMARTCARD_RST/SD_EMMC_DATA[2]
M_RFModule_RESET
AVDD_33SB
SMARTCARD_RST/SD_EMMC_DATA[2]
+3.3V_NORMAL
OPCTRL7
R189
10K
10K
OPT
I2C_SCL4
R125
4.7K
OPT
R134
33
MT5398_XTAL_OUT
MT5398_MIVAL_ERR
STB_SDA
OPCTRL_11_SCL
R107
4.7K
MTK_HD
OPCTRL_10_SDA
/USB_OCD1
MODEL_OPT_5
I2C_SCL5
R183
4.7K
4.7K
MT5398_XTAL_OUT
R109
33
R128
4.7K
MODULE_V12
R184
4.7K
4.7K
EMMC_CMD
OSCL0
I2C_SCL6
R185
10K
EMMC_DATA[0]
R177
4.7K
4.7K
OPT
R142
2.7K
2.7K
HP_DET
MODEL_OPT_6
EMMC_CLK
/USB_OCD3
R132
2.7K
2.7K
R135
33
C112
4.7uF
10V
4.7uF
10V
/PCM_OE
R104
4.7K
NON_FRC_60Hz
R112
33
AMP_RESET_SOC
R123
4.7K
Country_AJJA
R117
33
/S2_RESET
SMARTCARD_PWR_SEL/SD_EMMC_DATA[1]
I2C_SDA6
FE_LNA_Ctrl1
AVDD_33SB
+3.3V_NORMAL
/PCM_REG
STB_SCL
OPC_EN
R187
4.7K
OPT
MT5398_TS_IN[5]
I2C_SDA_MICOM
R160
1K
1K
OPT
OPCTRL_1_SCL
+3.3V_NORMAL
R149
4.7K
MTK_EPI
R127
22
OPT
SC_DET
R178
22
CI_ADDR[0-14]
EMMC_CLK
SMARTCARD_DET/SD_EMMC_DATA[3]
I2C_SDA5
R140
4.7K
MTK_DVB_T2_TUNER
R126
22
OPT
L/DIM0_SCLK
R174
4.7K
4.7K
OPT
SMARTCARD_DET/SD_EMMC_DATA[3]
I2C_SDA5
IC101
M24C16-R
OPT
3
NC_3
2
NC_2
4
VSS
1
NC_1
5
SDA
6
SCL
7
WC
8
VCC
OSCL0
R108
4.7K
MTK_FHD
SOC_RX
R147
2.7K
2.7K
SMARTCARD_VCC/SD_EMMC_CMD
OSDA1
R193
4.7K
R146
4.7K
DDR_0.78G
OPCTRL3
R173
1K
1K
PWM1_PULL_DOWN_1K
R124
1.2K
1.2K
R182
33
OSDA1
AV1_CVBS_DET
R100
4.7K
OPT
R136
4.7K
MTK_NON_CP_BOX
USB_CTL3
MODEL_OPT_0
PWM_DIM1
OSDA0
SOC_RESET
+3.3V_NORMAL
USB_CTL1
LED_PWM0
R137
4.7K
MTK_CP_BOX
C107
4.7uF
10V
4.7uF
10V
SMARTCARD_DATA/SD_EMMC_CLK
I2C_SDA4
+3.3V_NORMAL
EMMC_DATA[1]
MODEL_OPT_6
OPCTRL_0_SDA
MODEL_OPT_0
I2C_SCL2
EPI_LOCK6
R106
4.7K
FRC_120Hz
OSCL2
C100
0.1uF
OPT
16V
R170
10K
/PCM_CE1
MODEL_OPT_5
EMMC_DATA[2-7]
/PCM_WE
R179
PWM_DIM2
22
C117
0.1uF
16V
16V
R188
4.7K
4.7K
R119
33
SMARTCARD_PWR_SEL/SD_EMMC_DATA[1]
R113
33
I2C_SDA1
R169
10K
NON_EU
I2C_SCL1
PWM_DIM2
R186
22
OSDA0
/PCM_IRQA
CI_A_VS1
R168
10K
C109
0.1uF
0.1uF
C111
0.1uF
0.1uF
CTS
IC100
AT24C256C-SSHL-T
NVRAM_ATMEL
3
A2
2
A1
4
GND
1
A0
5
SDA
6
SCL
7
WP
8
VCC
MODEL_OPT_7
R143
4.7K
MTK_NON_DVB_S_TUNER
R152
2.7K
2.7K
NON_TU_Q_KR
+3.3V_NORMAL
MT5398_TS_IN[2]
R151
2.7K
2.7K
R141
2.7K
2.7K
R163
1K
1K
MT5398_MCLKI
OPCTRL_10_SDA
MT5398_TS_CLK
MODEL_OPT_3
MODEL_OPT_8
RTS
R150
2.7K
2.7K
SMARTCARD_VCC/SD_EMMC_CMD
FE_DEMOD1_TS_DATA[0-7]
MODEL_OPT_7
MODEL_OPT_3
R155
1K
1K
R110
33
MT5398_TS_VAL
FE_LNA_Ctrl2
OPCTRL3
AVDD_33SB
STB_SCL
OPCTRL_0_SDA
R139
4.7K
MTK_NON_DVB_T2_TUNER
SC_ID_SOC
/PCM_IOWR
SMARTCARD_CLK/SD_EMMC_DATA[0]
R101
4.7K
SMARTCARD_DATA/SD_EMMC_CLK
R161
1K
1K
OPT
/PCM_WAIT
OSCL1
R115
33
OSCL1
+3.3V_NORMAL
R122
4.7K
Non_Country_AJJA
R114
33
MT5398_XTAL_IN
R138
2.7K
2.7K
IC100-*2
R1EX24256BSAS0A
NVRAM_RENESAS
3
A2
2
A1
4
VSS
1
A0
5
SDA
6
SCL
7
WP
8
VCC
MODEL_OPT_10
COMP1_DET
R130
4.7K
MODULE_V13
OSDA2
MT5398_TS_IN[7]
R156
1K
1K
R176
1K
1K
PWM2_PULL_DOWN_1K
/TU_RESET1
MT5398_TS_IN[1]
LED_PWM1
R116
33
OPCTRL_1_SCL
AMP_RESET_N
IC100-*1
M24256-BRMN6TP
NVRAM_ST
3
E2
2
E1
4
VSS
1
E0
5
SDA
6
SCL
7
WC
8
VCC
SOC_TX
L/DIM0_MOSI
RF_SWITCH_CTL
/CI_CD2
STB_SDA
MODEL_OPT_2
MT5398_TS_IN[3]
R105
4.7K
Country_TW
I2C_SDA2
R154
1K
1K
OPT
MODEL_OPT_1
L/DIM0_VS
MT5398_TS_IN[0]
LED_PWM0
/S2_RESET
FE_DEMOD1_TS_CLK
/CI_CD1
+3.3V_NORMAL
R144
4.7K
NON_DDR_0.78G
CI_DATA[0-7]
R102
4.7K
OPT
FE_DEMOD1_TS_VAL
R103
4.7K
NON_Country_TW
MT5398_TS_IN[6]
/PCM_IORD
R129
4.7K
MTK_DDR_1.5GB
AMP_RESET_SOC
/USB_OCD2
I2C_SCL5
R145
4.7K
MTK_DVB_S_TUNER
R153
2.7K
2.7K
NON_TU_Q_KR
MT5398_MISTRT
R121
1.2K
1.2K
R158
22
OPCTRL_11_SCL
MT5398_TS_IN[4]
MODEL_OPT_9
M_REMOTE_RX
SMARTCARD_CLK/SD_EMMC_DATA[0]
C110
0.1uF
0.1uF
I2C_SCL1
+3.3V_NORMAL
I2C_SCL_MICOM
MT5398_TS_SYNC
WOL/ETH_POWER_ON
M_REMOTE_TX
I2C_SDA1
MT5398_TS_OUT[0-7]
R162
1K
1K
R118
33
OPCTRL7
R148
4.7K
MTK_NON_EPI
MT5398_XTAL_IN
FE_DEMOD1_TS_SYNC
R133
2.7K
2.7K
PCM_RST
R131
4.7K
MTK_DDR_1.25GB
R120
33
R157
1K
1K
OPT
VDD3V3
LED_PWM1
R190
10K
D100
100V
1N4148W
OTP_WRITE
R180
4.7K
+3.3V_NORMAL
OTP_WRITE
VDD3V3
R194
10K
R195
10K
Q100
PMV48XP
G
D
S
C115-*1
2.7pF
50V
2.7pF
50V
ATSC_2.7pF
C114-*1
2.7pF
50V
2.7pF
50V
ATSC_2.7pF
#SIL_RESET
R153-*1
1.5K
TU_Q_KR
R152-*1
1.5K
TU_Q_KR
C114
1.0pF
50V DVB_1pF
1.0pF
50V DVB_1pF
C115
1.0pF
50V
1.0pF
50V
DVB_1pF
X100
27MHz
4
GND_2
1
X-TAL_1
2
GND_1
3
X-TAL_2
/RST_HUB
/RST_HUB
CAM_SLIDE_DET
CAM_SLIDE_DET
R196
240
240
IC105
LGE2122[A2_M13]
JTCK
AK10
JTDI
AK11
JTDO
AL9
JTMS
AJ11
JTRST
AJ12
OSDA0
AH11
OSCL0
AH10
OSDA1
AF11
OSCL1
AG11
XTALI
AN29
XTALO
AM29
AVDD33_XTAL_STB
AN30
AVSS33_XTAL_STB
AL29
AVDD33_VGA_STB
AN17
AVSS33_AVSS33_VGA_STB
AL17
AVDD33_PLL
AL26
AVSS33_PLLGP
AC21
AVSS33_CPUPLL
H21
AVDD10_LDO
AM17
AVDD10_ELDO
AN16
U0TX
AH15
U0RX
AH14
U1TX
AH13
U1RX
AG13
POWE
D24
POOE
B25
POCE1
D25
POCE0
A25
PDD7
C22
PDD6
B22
PDD5
A22
PDD4
C23
PDD3
A23
PDD2
B23
PDD1
D23
PDD0
C24
PARB
C25
PACLE
A26
PAALE
B26
EMMC_CLK
C21
OPWRSB
AL15
ORESET
AK20
OIRI
AF17
FSRC_WR
C20
STB_SCL
AL14
STB_SDA
AK15
POR_BND
AE14
IC105
LGE2122[A2_M13]
GPIO0
B30
GPIO1
A31
GPIO2
B31
GPIO3
A32
GPIO4
C30
GPIO5
A33
GPIO6
B32
GPIO7
C31
GPIO8
E30
GPIO9
F29
GPIO10
F27
GPIO11
F28
GPIO12
C32
GPIO13
F30
GPIO14
F32
GPIO15
D30
GPIO16
D32
GPIO17
F31
GPIO18
F33
GPIO19
E31
GPIO20
E32
GPIO21
D31
GPIO22
D33
GPIO23
E29
GPIO24
C33
GPIO25
B33
GPIO26
A30
GPIO27
E28
GPIO28
C29
GPIO29
J28
GPIO30
H29
GPIO31
J26
GPIO32
G30
GPIO33
G27
GPIO34
E27
GPIO35
D29
GPIO36
D28
GPIO37
H28
GPIO38
J27
GPIO39
G29
GPIO40
G31
GPIO41
G28
GPIO42
B28
GPIO43
K28
GPIO44
E25
GPIO45
D21
GPIO46
G23
GPIO47
C28
GPIO48
F24
GPIO49
AB8
GPIO50
AA7
GPIO51
AD6
GPIO52
AC8
GPIO53
AC7
GPIO54
AB6
GPIO55
AC6
ADIN0_SRV
AJ23
ADIN1_SRV
AH23
ADIN2_SRV
AE28
ADIN3_SRV
AD28
ADIN4_SRV
AF22
ADIN5_SRV
AK21
ADIN6_SRV
AG24
ADIN7_SRV
AM18
DEMOD_RST
P30
DEMOD_TSCLK
N32
DEMOD_TSDATA0
R27
DEMOD_TSDATA1
T26
DEMOD_TSDATA2
T27
DEMOD_TSDATA3
P26
DEMOD_TSDATA4
R28
DEMOD_TSDATA5
U27
DEMOD_TSDATA6
U26
DEMOD_TSDATA7
R26
DEMOD_TSSYNC
R29
DEMOD_TSVAL
P27
CI_INT
L25
CI_TSCLK
N33
CI_TSDATA0
K26
CI_TSSYNC
N30
CI_TSVAL
N31
PVR_TSCLK
M31
PVR_TSVAL
M27
PVR_TSSYNC
L27
PVR_TSDATA0
M29
PVR_TSDATA1
M30
SPI_CLK1
L30
SPI_CLK
L33
SPI_DATA
L32
SPI_CLE
K27
OPWM2
AL8
OPWM1
AM8
OPWM0
AM9
SD_D0
D27
SD_D1
C27
SD_D2
D26
SD_D3
C26
SD_CMD
A28
SD_CLK
E24
LED_PWM1
AF15
LED_PWM0
AG15
OPCTRL11
AL16
OPCTRL10
AM16
OPCTRL9
AE17
OPCTRL8
AG19
OPCTRL7
AH17
OPCTRL6
AE19
OPCTRL5
AH19
OPCTRL4
AK16
OPCTRL3
AG17
OPCTRL2
AJ17
OPCTRL1
AF19
OPCTRL0
AJ19
R152-*2
1.2K
TU_N_TW/BR
R153-*2
1.2K
TU_N_TW/BR
8
MID_MAIN_1
2011.12.13
HDCP EEPROM
CI SLOT -> SOC
MODEL_OPT_4
I2C
NON_DDR_0.78G
GPIO45(EMMC_RST) is dedicated to reset
EMMC for improving A1’s leakage current
EMMC for improving A1’s leakage current
X-TAL
DDR_1.25G
MODEL_OPT_4
Support
CI SLOT -> SOC
NVRAM
HD
Write Protection
- Low : Normal Operation
- High : Write Protection
- High : Write Protection
Not Support
CP BOX
CI SLOT -> SOC
SOC -> CI SLOT
EAX64797001* : LD33B
EAX64872101* : LA33B
EAX64872101* : LA33B
Support
MODEL_OPT_2
Disable
Non_AJJA
Module
EPI
Close to eMMC Flash
(IC8100)
(IC8100)
Enable
MODEL_OPT_8
MODEL_OPT_9
Model Option
EXTERNAL DEMOD
-> SOC
-> SOC
AJJA
T2 Tuner
MODEL_OPT_5
DDR_1.5G
MODEL_OPT_7
Not Support
MODEL_OPT_6
DDR
Wake On Lan
Not Support
STRAPPING LED_PWM0 LED_PWM1 OPCTRL3 OPCTRL7
ICE mode + 27M + serial boot 1 0 0 0
ICE mode + 27M + ROM to Nand boot 1 0 0 1
ICE mode + 27M + ROM to 60bit ECC Nand boot 1 0 1 0
ICE mode + 27M + ROM to eMMC boot from 1 0 1 1
EMMC pins (share pins w/s NAND)
EMMC pins (share pins w/s NAND)
ICE mode + 27M + ROM to eMMC 1 1 0 0
Boot from SDIO pins
Boot from SDIO pins
Support
SOC -> CI SLOT
FHD
MODEL_OPT_3
DDR
MODEL_OPT_10
CI SLOT -> SOC
S Tuner
5V Tolerance
I2C_1 : AMP, L/DIMMING,HDCP KEY
I2C_2 : T-CON,
I2C_3 : MICOM
I2C_4 : S/Demod,T2/Demod, LNB, MHL(Sil1292)
I2C_5 : NVRAM
I2C_6 : TUNER_MOPLL(T/C,ATV)
I2C_2 : T-CON,
I2C_3 : MICOM
I2C_4 : S/Demod,T2/Demod, LNB, MHL(Sil1292)
I2C_5 : NVRAM
I2C_6 : TUNER_MOPLL(T/C,ATV)
MODEL_OPT_1
Non_TW
MODEL_OPT_0
No FRC(60Hz)
LOW
HIGH
FRC(120Hz)
Country_TW
FRC
V12
V13
Panel
Country_AJJA
DDR_0.78G
MODEL_OPT_5
MODEL_OPT_9
DDR_1.25G
DDR_1.5G
DDR_0.768G
High
Low
Low
Low
High
High
TW
MODEL_OPT_4
Click on the first or last page to see other 32LN570B (CHASSIS:LT33B) service manuals if exist.