LG XXLA74*-Z, XXLA71*-Z, XXLA69/66*-Z, XXLA64/62/61*-Z, XXLN57*-Z Schematic
2013 LED/LCD TV
Copyright © 2013 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
LGE Internal Use Only
Engineering guide
< Applicable Model : Mid-end Platform >
XXLA74*-Z*
XXLA71*-Z*
XXLA69/66*-Z*
XXLA64/62/61*-Z*
XXLN57*-Z*
1/ 88
◈ CONTENT ◈
Copyright © 2013 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
LGE Internal Use Only
1. New features
2. Main PCBs
3. Block Diagrams, IIC Map
4. Structure of TV set and connection of sub ass’ys
5. New sub ass’ys
- Instruction of new sub ass’ys
6. Adjust way of new features
7. Repair guide
2/ 88
EPI Interface
Copyright © 2013 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
LGE Internal Use Only
EPI(Embedded Point-Point Interface)
Features
• Point-Point topology (support 2 Pair option)
• CDR (Clock Data Recovery)
• Bandwidth up to 1.85Gbps/pair
at FHD 120Hz 10 bit application
• Lock signal cascading and feedback to T-Con
• Embedded Control Data
Merits
VCC
TCON
LOCK
2
1
Figure1. Topology
• Better reliability on common noise
• No data skew and better EMI margin
• Fewer lines than mini-LVDS
• Slim PCB design
3/ 88
EPI Interface (mini-LVDS vs. EPI)
Copyright © 2013 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
LGE Internal Use Only
Comparison
HF mini-LVDS
HF mini-
LVDS
No. of Signal 36 36 72
Connector
60Hz 120Hz 240Hz
60pin
(2ea)
-Difficult to upgrade bandwidth limit
-Multiple number of wires needed for higher bandwidth
EPI (Embedded clock P-to-P Interface)
EPI
No. of Signal 12 12 32
Connector -
-Better reliability on common noise
-No data skew. Better EMI margin
-Lower cost ( Cable, Connector )
-Slim S-PCB design (14mm Æ 10mm) helps slimmer TV
60Hz 120Hz 240Hz
960ch 960ch 720ch
FHD (10bit)
60pin
(2ea)
FHD (10bit)
50 pin
(2ea)
80pin
(2ea)
70pin
(2ea)
What to change
LCM (T-con to S-Driver IC)
HF mini-LVDS
18
VCC
1
EPI
2
VCC
* Bandwidth Capability
- FHD 120Hz 10Bit : 594Mbps@36Lines → 1.65Gbps@12Lines
- FHD 240Hz 10Bit : 594Mbps@72Lines → 1.25Gbps@32Lines
1
TCON
18
(FHD 120Hz)
TCON
LOCK
(FHD 120Hz)
4/ 88
EPI Interface (mini-LVDS vs. EPI)
Copyright © 2013 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
LGE Internal Use Only
HF mini-LVDS EPI
Topology
Protocol
Features
@10bit, FHD120
Merit
TCON
• Multi Drop
• Data rate: 660Mbps
• External clock
• Simple structure
• Standardization
TCON
2
1
• Point to Point
• Data rate : 1.8Gbps
• Embedded clock, Control
• Fewer Lines : 12
• Embedded clock
: low EMI, Clock skew free
Lock
Demerit
• Too many lines : 36
• Clock skew
• EMI due to clock lines
• Bandwidth limit
• Easy to PCB design
• Transmission Overhead
: 4bit delimiter
5/ 88
NFC (Near field communication)
Copyright © 2013 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
LGE Internal Use Only
Near field communication (NFC) is a set of standards for smartphones and similar devices to establish radio communication
with each other by touching them together or bringing them into close proximity, usually no more than a few centimetres.
Present and anticipated applications include contactless transactions, data exchange, and simplified setup of more complex
communications such as Wi-Fi. Communication is also possible between an NFC device and an unpowered NFC chip, called
a "tag".
From Smart phone
to TV
User Action Area
Samrt phone close to
NFC Tag
Player choose
From TV
to Smart phone
6/ 88
Main PCB for Broadband
Copyright © 2013 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
LGE Internal Use Only
xxLA660S-Zx
To PSU
3
5
Main + TCON all in one
1
Chassis : LD33B
PCB P/No : EAX64797003
S
model
To module
6
WIFI/BT
Key+IR
2
Front Spk
4
2
Only S model
1
LNB IC Block
Main processor, DDR Memory
1
eMMC Memory
Micom for Key/IR sensing
2
1
2
3
4
5
6
PMIC
Audio AMP
EPI Wafer
Level shifter
7/ 88
1. LGE2122 Block Diagram
Copyright © 2013 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
LGE Internal Use Only
Cable
R
E
A
DVB-S
R
(H)
MHL 1A
SIL1392
MHL : I2C 4
Air/
T/C/S2 Without ATV
TUNER
(T/C/A)
TUNER
(S2)
DVB-S : I2C 4
MHL
DEMOD
(S2)
LNB
Tuner : I2C 6
USB1
S
(HDD)
I
USB2
D
USB3
E
HDMI1
S
I
HDMI2
D
HDMI3
E
H/P
AV/COMP
R
SCART
E
A
R
OPTIC
LAN
CI Slot
P_TS
IF (+/-)
P_TS
OCP
2.5A
OCP
1A
AMP
TI
P_TS
X_TAL
27MHz
T/C Demod
Analog Demod
P_TS
USB
HDMI
MUX
CVBS/YPbPr
CVBS/RGB
SPDIF OUT
ETHERNET
DDR3 1600 X 16
(512MB X 2EA)
LGE 2122
A B
I2C 5
I2C 1
LVDS
EPI
I2C 2
I2S Out
I2C 1
I2C 1
UART
KEY
USB_WIFI
DDR3 1600 X 16
(256MB X 1EA)
SYSTEM EEPROM
(256Kb)
HDCP EEPROM
(16Kb)
eMMC
(4GB)
51P
41P
50P
50P
IR
PM ICLEVEL
SHIFTER
Audio AMP
(NTP7513)
LOCAL DIMMING
BLUTOOTH
IR / NFC
KEY
WIFI
LOGO LIGHT
SUB
ASSY
I2C 3
Sub Micom
(RENESAS R5F1000G)
X_TAL
32.768KHz
2. LGE 2122 I2C Block Diagram
Copyright © 2013 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
LGE Internal Use Only
IC3000
Renesas MICOM
IC7700
PMIC
IC8101
NTP7513(AMP)
3.3KΩ
+3.5V_ST
100Ω
+3.3V_Normal
2.7KΩ
33Ω
+3.3V_Normal
2.7KΩ
33Ω
+3.3V_Normal
1.2KΩ
33Ω
IC105
LGE 2122
I2C_SDA3
I2C_SCL3
I2C_SDA2
I2C_SCL2
I2C_SDA1
I2C_SCL1
I2C_SDA4
I2C_SCL4
I2C_SDA5
I2C_SCL5
+3.3V_Normal
2.7KΩ
33Ω
+3.3V_Normal
2.7KΩ
33Ω
+3.3V_Normal
2.7KΩ
33Ω
22Ω
33Ω
IC3304
MHL
LNB
TUNER(S)
IC100
NVRAM
P7600
Local dimming
IC101
HDCP EEPROM
33Ω
22Ω
I2C_SDA6
I2C_SCL6
33Ω
33Ω
TUNER(D)
3. Power Block Diagram
(
)
y
(
)
)
)
L
)
)
A
(
)
Q)
T
)
Copyright © 2013 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
LGE Internal Use Only
3.5V
12V
24V
MICOM(VDD)
IR A'ssy
PANEL_VCC
PANEL_POWER
NTP_7400(PVDD1)
NTP_7400(PVDD2)
AMP
+12V_LNB
LNB option
1.5V DDR
5V USB 3A
3A
1.23V
2A
MTK (DDRV)
DDR(VDD)
DDR(VDDQ)
TUNER(+1.23V)
5V Normal
3A
1.2V Core
6A
3.3V Noraml
4A
5V USB
1CH DCDC 4A
2CH OCP 1.2A
USB1(DVR Max 1.5A
HDMI_EEPROM
RGB_EEPROM
CI (+5V_CI_ON)
TUNER(+5V_TU)
MTK(AVDD12_LVDS)
MTK
MTK(VCCK)
AVDD_
USB_WIFI
USB2(Max 1.2A)
USB3(Max 1.2A)
3.3V DAC
MTK(AVDD33_DAC)
SPDIF
IR A'ss
M_REMOTE
HDCP EEPROM
NVRAM
DVDD3V3
MTK
MTK (AVDD33_AADC
MTK (AVDD3V3
MTK(AVDD3V3_MEMPL
MTK(AVDD3V3_LVDS
MTK(AVDD33_STB
UDIO AMP
EARPHONE AMP
VCC
EMMC
EMMC(VCC
UNER(+3.3V_TU)
1.8V_TU
4. Tuner/CI Block Diagram
Copyright © 2013 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
LGE Internal Use Only
TDSQG501D
[+3.3V_S2_DEMOD] 32
[+3.3V_TUNER] 5
[+.1.8V_TUNER] 7
[+1.23V_S2_DEMOD] 30
[S2_F22_OUTPUT] 33
[LNB] 36
[S2_SCL] 34
[S2_SDA] 35
+3.3V_D_Demod
+3.3V_TU
+1.8_TU
+1.23V_D_Demod
LNB_TX
LNB_OUT
I2C_SCL4
+3.3V_NORMAL
3.3K Ω
22 Ω
10 [TONECTRL]
2 [LNB]
7 [SCL]
8 [SDA]
I2C_SDA4
[RESET] 2 AG24 [ADIN6_SRV]
[SLC] 3
[SDA] 4
[ERROR] 16
[SYNC] 17
[VALID] 18
[MCLK] 19
/TU_RESET1
IC2_SDA6
IC2_SCL6
FE_DEMOD1_TS_SYNC
FE_DEMOD1_TS_VAL
FE_DEMOD1_TS_CLK
33 Ω33Ω
FE_DEMOD1_TS_DATA [0-7]
[D0-7] 20-27
[S2_RESET] 31 AM18 [ADIN7_SRV]
[T/C_DIF[P]] 10
[T/C_DIF[N]] 11
IF_P
IF_N
/S2_RESET
Attenuator
TUNER_SIF(for T2/C/S)
ADCINP_DEMOD
ADCINN_DEMOD
AM27 [ADCINP_DEMOD]
AN27 [ADCINN_DEMOD]
TU_CVBS(for
T2/C/S)
IF_AGC
A8303SESTR-TB
IC6900
LGE 2122
AP6 [S CL3]
AR6 [S DA3]
AF19[OPCTRL1]
AJ19 [OPCTRL0]
R29 [DEMOD_TSSYNC]
P27 [DEMOD_TSVAL]
P30 [DEMOD_TSCLK]
[DEMOD_TSDATA0-7]
LNB
T34[DEMOD_RST]
P34[PVR_TSDATA1]
P33[PVR_TSDATA0]
R33[PVR_TSSYNC]
R35[CI_TSDATA0]
PCM_5V_CTL
CI 5V
Power detect
+5V_CI_ON
VCC
+5V_CI_ON +3.3V_NORMAL
F28[TCON12]
L33[SPI_CLK]
L30[SPI_CLK1]
M31[CI_TSCLK] CARD_EN1
N34[SPI_DATA]
N35[SPI_CLE]
[GPIO0-14]
[GPIO26-33]
N36[CI_INT]
R36[CI_TSVAL]
R37[CI_TSSYNC]
CI_ADDR[0-14] CI_A_ADDR[0-14]
CI_DATA[0-7] CI_A_DATA[0-7]
MTK5398_TS_CLK
R3[PVR_TSCLK]
[GPIO34-41] TS_OUT[0-7]
[GPIO18-25] TS_IN[0-7]
MTK5398_TS_VAL
MTK5398_TS_SYNC
MT5398_TS_IN[0-7] CI_TS_DATA[0-7]
MT5398_TS_OUT[0-7] CI_MDI[0-7]
10K Ω
/CI_CD1
/CI_CD2
CI_VS1
/PCM_CE1
/PCM_CE2
/PCM_IOWR
/PCM_IORD
PCM_RST
/PCM_WAIT
PCM_INPACK
/PCM_A_REG
/PCM_IRQA
/PCM_OE
/PCM_WE
47 Ω
47 Ω
47K Ω
CI_TS_CLK
CI_TS_VAL
CI_TS_SYNC
CI_DET1
CI_DET2
VS1M27[PVR_TS_VAL]
CARD_EN2
IOWD
IORD
ADDR[0-14]
DAT[0-7]
CI_RESET
CI_WAIT
INPACK
REG
/IRQA
O_EN
WR_EN
TS_OUT_CLK
TS_OUT_VAL
TS_OUT_SYNC
CI Slot
5. Video/Audio In Block Diagram
Copyright © 2013 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
LGE Internal Use Only
JK501
SCART
COMP1_Y/AV1_CVBS
COMP1_Pb
COMP1_Pr
COMP1/AV1/DVI_L_IN
COMP1/AV1/DVI_R_IN
SC_CVBS_IN
SC_ID/FB
SC_R/G/B
SC_L/R_IN
Jack Side
SoC Side
COMP1_Y/AV1_CVBS_SOC
COMP1_Pb_SOC
COMP1_Pb_SOC
COMP1/AV1/DVI_L_IN_SOC
COMP1/AV1/DVI_R_IN_SOC
SC_CVBS_IN_SOC
SC_FB_SOC
SC_R/G/B_SOC
SC_L/R_IN_SOC
[CVBS2P]
[PB0P]
[PR0P]
[AIN4_L_AADC]
[AIN4_R_AADC]
LGE 2122
[CVBS3P]
[ADIN0_SRV, SOY1]
[PR1P, PB1P, Y1P]
[AIN1_L/R_AADC]
JK4600
Tuner
TU_CVBS
TUNER_SIF, IF_P/N
Parallel TS / ERROR,VAL,SYNC,CLK
TU_CVBS
TUNER_SIF, IF_P/N
Parallel TS / ERROR,VAL,SYNC,CLK
[CVBS1P]
[MPXP, ADCINP_DEMOD, ADCINN_DEMOD]
6. Audio Out Block Diagram
Copyright © 2013 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
LGE Internal Use Only
COMP1/AV1/DVI_L_IN_SOC
COMP1/AV1/DVI_R_IN_SOC
JK501
SCART
[AIN4_L_AADC]
[AIN4_R_AADC]
[AL1_ADAC]
[AR1_ADAC]
SCART_L/Rout
IC6000
AZ4580MTR
OP AMP
Mute CTRL
(TR)
SCART_MUTE
LPF
SCART
DTV/MNT_L/R_OUT
JK4600
DVB only
JK4600
Tuner
SC_L_IN / SC_R_IN
DVB only
TR BUF
TUNER_SIF
[AIN1_L_AADC]
[AIN1_R_AADC]
LGE 2122
[MPXP]
[AOMCLK]
[AOSDATA0]
[AOLRCK]
[AOBCK]
[STB_SDA]
[STB_SCL]
[OPCTRL4]
[AL0_ADAC]
[AR0_ADAC]
[ASPDIF0]
AUD_MASTER_CLK
AUD_LRCH
AUD_LRCK
AUD_SCK
I2C_SDA1
I2C_SCL1
AMP_RESET_N
HP_L/ROUT_MAIN
SPDIF_OUT
IC6100
TPA6138A2PWR
HP AMP
IC8101
Audio AMP
NTP7513
AMP_MUTE
IC3000
MICOM
SIDE_HP_MUTE
HP_L/ROUT_AMP
LPF
LPF
LPF
JK3700
JK3602
4P WAFER
SPEAKER_L
SPEAKER_R
WOOFER
HEAD PHONE
7. HDMI
Copyright © 2013 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
LGE Internal Use Only
DDC_SCL_1_SOC
DDC_SDA_1_SOC
HDMI_ARC
TMDS Link 8bits
HDMI1
LGE 2122
DDC_SCL_2_JACK
DDC_SDA_2_JACK
TMDS Link 8bits
I2C_SCL4
I2C_SDA4
TMDS Link 8bits
SIL1292
5V_MHL
OCP
MHL_DET
DDC_SCL_3_JACK
DDC_SDA_3_JACK
TMDS Link or MHL Link
5V_BUS
X-tal
32.768kHz
HDMI2
HDMI3
CEC_REMOTE
Q3001
HDMI_CEC
RENESAS
MICOM
WOL_CTL
8. Panel Interface Block Diagram
Copyright © 2013 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
LGE Internal Use Only
PANEL_VCC
(+12V)
LGE 2122
EPI Tx
Block
VCC
VCC1.8
VDD
PMIC
H_VDD
TPS65178
VCOM_P
SWP
CTRLP
6
GMA4/GMA5/GAM7/GMA12/GMA14/ GMA15
2
2
2
SWN
CTRLN
EPI CH1 +/EPI CH2 +/EPI CH3 +/-
VCOM_DYN VCOMLFB
VCOM_N
TR/
Diode
TR/
Diode
VCOM_LOOP
VGH
VGL
VCOM
EO
GST
GCLK
MCLK
Level Shift
TPS65198
2
VGL_I
GIP_RST
VST
CLK1_I~CLK6_I
2
6
50Pin X 2
6
GMA1/GMA3/GAM9/GMA10/GMA16/GMA18
VGH_EVEN/VGH_ODD
VGH_F/VGH_R
EPI_LOCK3
Z_Out
VCOMRFB
2
2
2
GMA4/GMA5/GAM7/GMA12/GMA14/GMA15
EPI CH4 +/EPI CH5 +/EPI CH6 +/-
EPI_LOCK6_SOURCE EPI_LOCK6
9. PMIC & Level Shift Bloc Diagram
Copyright © 2013 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
LGE Internal Use Only
PANEL_VCC
Boost Converter
Buck 1 converter(VCC)
Buck 2 converter(Vcore)
Buck 3 converter(HVdd)
Buck 4 converter(VCC18)
Positive Charge Pump Controller
Negative Charge Pump Controller
6-Ch Gamma Buffer(DAC output)
Vcom reference & gain
Reset
Vdd
VCC
Vcore
HVdd
VCC18
SWN
CTRLN
SWP
CTRLP
GAM4/5/7/12/14/15
VCOM_P
VCOM_N
VCOM_LOOP
PMIC_RESET
TR/
Diode
TR/
Diode
Level Shift
TPS65198
VGL
VGH
TPS65178
PMIC
10. USB / WIFI / M-REMOTE / UART
Copyright © 2013 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
LGE Internal Use Only
[USB_DM_P2]
[USB_DP_P2]
[GPIO43]
[GPIO46]
[USB_DM_P1]
[USB_DP_P1]
[GPIO42]
[TCON12]
[USB_DM_P0]
[USB_DP_P0]
[GPIO44]
[ADIN2_SRV]
[USB_DM_P3]
[USB_DP_P3]
[U1RX]
[U1TX]
[ADIN4_SRV]
[OPCTRL49]
[OPCTRL50]
USB_DM1
USB_DP1
/USB_OCD1
USB_CTL1
USB_DM2
USB_DP2
/USB_OCD2
USB_CTL2
USB_DM3
USB_DP3
/USB_OCD3
USB_CTL3
WIFI_DM
WIFI_DP
USB1
USB2
USB3
+5V_USB_1
+5V_USB_2
+5V_USB_3
M_REMOTE_RX
M_REMOTE_TX
M_RFModule_RESET
RTS
CTS
OCP
OCP
USB_WIFI
Motion Remote
Receiver
[U0TX]
[U0RX]
LGE 2122
SOC_TX
SOC_RX
RENESAS MICOM
HDMI2
4Pin debugging
wafer
HDMI3
Interconnection - 1
Copyright © 2013 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
LGE Internal Use Only
47LA660S-ZA
[PCBs]
3
2
3
4
1
5
2
6
1
1
2
3
4
5
Main PCB
Power Board
Local key Assy
RF Assy
WIFI Assy
[Cables]
1
Main / LPB 24Pin + Local
Dimming Cable
Main / Module EPI Cable
2
50& 50Pin
LED driver / PSU
3
4
IR 8Pin Cable
4 5
1 / 88
5
WiFi 6Pin + RF 8Pin Cable
6
SPK Cable
Interconnection - 2
Copyright © 2013 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
LGE Internal Use Only
47LA660S-ZA
[PCBs]
7
8
6
6
IR Assy
[Cables]
IR to Local Key 3Pin Cable
7
8
IR to Logo Assy 4Pin Cable
2 / 88
Introductions of 13Y RF ass’y + Magic Remote control
Copyright © 2013 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
LGE Internal Use Only
1. System
2. Remote Buttons
3. MR13 Block Diagram
4. Function List
5. Pairing/Un-pairing Method
3 / 88
1. System
Copyright © 2013 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
LGE Internal Use Only
RF
UART
or USB
RF Receiver
Remote
Pairing Information Transmission (Send to TV after Paired)
• Static Calibration Data (Bypass only)
• Remote FW ver. (Save also in Receiver)
• BD_ADDR (Save also in Receiver)
• Pairing Information Transmission Sequence
• When it is paired, the remote sends packets(pairing success, F/W version, BD_ADDR) to the receiver.
• The receiver sends the pairing success packet to TV directly.
• F/W version and BD_ADDR packets are just saved on the receiver.
• The receiver sends F/W version or BD_ADDR packet to TV when it is required.
Motion Data Transmission
• Period : 7.5msec
• Motion Data : gyro, accelerometer
Voice Data Transmission
• Period : 10msec
• Voice sampling : 16khz 16bit
TV
4 / 88
2. Remote Buttons (M4 vs. MR13)
Copyright © 2013 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
LGE Internal Use Only
POWER
BACK HOME
↑
OK
← →
BACK SMART
POWER
↑
OK
← →
↓
VOICE
↓
Screen RMT
Q.MENU
MUTE
MUTE
VOL CH
3D MYAPPS
3D
VOL CH
M4 Remote MR13 Remote
Phsical
Buttons
Logical
Buttons
BUTTON
POWER 0x08 NONE Y IR only
BACK 0x28 0x8028 Y
SMART 0x7C 0x807C Y
← 0x07 0x8007 Y
→ 0x06 0x8006 Y
↑ 0x40 0x8040 Y
↓ 0x41 0x8041 Y
OK 0x75 0x8044 Y
VOICE 0xDE 0x808B Y = VOICE_START
3D 0xDC 0x80DC Y
Screen RMT
/ Q.MENU
CH + 0x00 0x8000 Y
CH - 0x01 0x8001 Y
VOL + 0x02 0x8002 Y
VOL - 0x03 0x8003 Y
MUTE 0x09 0x8009 Y
AUTO_WAKEUP X 0x800C
VOICE_START X 0x800A
VOICE_STOP X 0x800D
POINT_START X 0x803E
POINT_STOP X 0x803F
RF Unpaired
IR_CODE
0xDE
RF Paired
RF_CODE
0x80DE
IR continuous
repeat
Y
ETC.
5 / 88
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