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
Shock, Fire, or other Hazards.
Do not modify the original design without permission of manufacturer.
General Guidance
An isolation Transformer should always be used during the
servicing of a receiver whose chassis is not isolated from the AC
power line. Use a transformer of adequate power rating as this
protects the technician from accidents resulting in personal injury
from electrical shocks.
It will also protect the receiver and it's components from being
damaged by accidental shorts of th e cir cuitry that may be
inadvertently introduced during the service operation.
If any fuse (or Fusible Resistor) in this TV receiver is blown,
replace it with the specified.
When replacing a high wattage resistor (Oxide Metal Film Resistor,
over 1 W), keep the resistor 10 mm away from PCB.
Keep wires away from high voltage or high temperature parts.
Before returning the receiver to the customer,
always perform an AC leakage current check on the exposed
metallic parts of the cabinet, such as antennas, terminals, etc., to
be sure the set is safe to operate without damage of electrical
shock.
Leakage Current Cold Check(Antenna Cold Check)
With the instrument AC plug removed from AC source, connect an
electrical jumper across the two AC plug prongs. Place the AC
switch in the on position, connect one lead of ohm-meter to the AC
plug prongs tied together and touch other ohm-meter lead in turn to
each exposed metallic parts such as antenna terminals, phone
jacks, etc.
If the exposed metallic part has a return path to the chassis, the
measured resistance should be between 1 MΩ and 5.2 MΩ.
When the exposed metal has no return path to the chassis the
reading must be infinite.
An other abnormality exists that must be corrected before the
receiver is returned to the customer.
Leakage Current Hot Check(See below Figure)
Plug the AC cord directly into the AC outlet.
Do not use a line Isolation Transformer during this check.
Connect 1.5 K / 10 watt resistor in parallel with a 0.15 uF capacitor
between a known good earth ground (Water Pipe, Conduit, etc.)
and the exposed metallic parts.
Measure the AC voltage across the resistor using AC voltmeter
with 1000 ohms/volt or more sensitivity.
Reverse plug the AC cord into the AC outlet and repeat AC voltage
measurements for each exp ose d metallic par t. Any voltage
measured must not exceed 0.75 volt RMS which is corresponds to
0.5 mA.
In case any measurement is out of the limits specified, there is
possibility of shock hazard and the set must be checked and
repaired before it is returned to the customer.
CAUTION: Before servicing receivers covered by this service
manual and its supplements and addenda, read and follow the
SAFETY PRECAUTIONS on page 3 of this publication.
NOTE: If unforeseen circumstances create conict between the
following servicing precautions and any of the safety precautions
on page 3 of this publication, always follow the safety precautions.
Remember: Safety First.
General Servicing Precautions
1. Always unplug the receiver AC power cord from the AC power
source before;
a. Removing or reinstalling any component, circuit board mod-
ule or any other receiver assembly.
b. Disconnecting or reconnecting any receiver electrical plug or
other electrical connection.
c. Connecting a test substitute in parallel with an electrolytic
capacitor in the receiver.
CAUTION: A wrong part substitution or incorrect polarity
installation of electrolytic capacitors may result in an explosion hazard.
2. Test high voltage only by measuring it with an appropriate
high voltage meter or other voltage measuring device (DVM,
FETVOM, etc) equipped with a suitable high voltage probe.
Do not test high voltage by "drawing an arc".
3. Do not spray chemicals on or near this receiver or any of its
assemblies.
4. Unless specied otherwise in this service manual, clean
electrical contacts only by applying the following mixture to the
contacts with a pipe cleaner, cotton-tipped stick or comparable
non-abrasive applicator; 10 % (by volume) Acetone and 90 %
(by volume) isopropyl alcohol (90 % - 99 % strength)
CAUTION: This is a ammable mixture.
Unless specied otherwise in this service manual, lubrication of
contacts in not required.
5. Do not defeat any plug/socket B+ voltage interlocks with which
receivers covered by this service manual might be equipped.
6. Do not apply AC power to this instrument and/or any of its
electrical assemblies unless all solid-state device heat sinks are
correctly installed.
7. Always connect the test receiver ground lead to the receiver
chassis ground before connecting the test receiver positive
lead.
Always remove the test receiver ground lead last.
8. Use with this receiver only the test xtures specied in this
service manual.
CAUTION: Do not connect the test xture ground strap to any
heat sink in this receiver.
Electrostatically Sensitive (ES) Devices
Some semiconductor (solid-state) devices can be damaged easily by static electricity. Such components commonly are called
Electrostatically Sensitive (ES) Devices. Examples of typical ES
devices are integrated circuits and some eld-effect transistors
and semiconductor “chip” components. The following techniques
should be used to help reduce the incidence of component damage caused by static by static electricity.
1. Immediately before handling any semiconductor component or
semiconductor-equipped assembly, drain off any electrostatic
charge on your body by touching a known earth ground. Alternatively, obtain and wear a commercially available discharging
wrist strap device, which should be removed to prevent potential shock reasons prior to applying power to the unit under test.
2. After removing an electrical assembly equipped with ES
devices, place the assembly on a conductive surface such as
aluminum foil, to prevent electrostatic charge buildup or exposure of the assembly.
3. Use only a grounded-tip soldering iron to solder or unsolder ES
devices.
4. Use only an anti-static type solder removal device. Some solder
removal devices not classied as “anti-static” can generate
electrical charges sufcient to damage ES devices.
5. Do not use freon-propelled chemicals. These can generate
electrical charges sufcient to damage ES devices.
6. Do not remove a replacement ES device from its protective
package until immediately before you are ready to install it.
(Most replacement ES devices are packaged with leads electrically shorted together by conductive foam, aluminum foil or
comparable conductive material).
7. Immediately before removing the protective material from the
leads of a replacement ES device, touch the protective material
to the chassis or circuit assembly into which the device will be
installed.
CAUTION: Be sure no power is applied to the chassis or circuit,
and observe all other safety precautions.
8. Minimize bodily motions when handling unpackaged replacement ES devices. (Otherwise harmless motion such as the
brushing together of your clothes fabric or the lifting of your
foot from a carpeted oor can generate static electricity sufcient to damage an ES device.)
General Soldering Guidelines
1. Use a grounded-tip, low-wattage soldering iron and appropriate
tip size and shape that will maintain tip temperature within the
range or 500 °F to 600 °F.
2. Use an appropriate gauge of RMA resin-core solder composed
of 60 parts tin/40 parts lead.
3. Keep the soldering iron tip clean and well tinned.
4. Thoroughly clean the surfaces to be soldered. Use a mall wirebristle (0.5 inch, or 1.25 cm) brush with a metal handle.
Do not use freon-propelled spray-on cleaners.
5. Use the following unsoldering technique
a. Allow the soldering iron tip to reach normal temperature.
(500 °F to 600 °F)
b. Heat the component lead until the solder melts.
c. Quickly draw the melted solder with an anti-static, suction-
type solder removal device or with solder braid.
CAUTION: Work quickly to avoid overheating the circuit
board printed foil.
6. Use the following soldering technique.
a. Allow the soldering iron tip to reach a normal temperature
(500 °F to 600 °F)
b. First, hold the soldering iron tip and solder the strand against
the component lead until the solder melts.
c. Quickly move the soldering iron tip to the junction of the
component lead and the printed circuit foil, and hold it there
only until the solder ows onto and around both the component lead and the foil.
CAUTION: Work quickly to avoid overheating the circuit
board printed foil.
d. Closely inspect the solder area and remove any excess or
Some chassis circuit boards have slotted holes (oblong) through
which the IC leads are inserted and then bent at against the circuit foil. When holes are the slotted type, the following technique
should be used to remove and replace the IC. When working with
boards using the familiar round hole, use the standard technique
as outlined in paragraphs 5 and 6 above.
Removal
1. Desolder and straighten each IC lead in one operation by
gently prying up on the lead with the soldering iron tip as the
solder melts.
2. Draw away the melted solder with an anti-static suction-type
solder removal device (or with solder braid) before removing
the IC.
Replacement
1. Carefully insert the replacement IC in the circuit board.
2. Carefully bend each IC lead against the circuit foil pad and
solder it.
3. Clean the soldered areas with a small wire-bristle brush.
(It is not necessary to reapply acrylic coating to the areas).
1. Remove the defective transistor by clipping its leads as close
as possible to the component body.
2. Bend into a "U" shape the end of each of three leads remaining
on the circuit board.
3. Bend into a "U" shape the replacement transistor leads.
4. Connect the replacement transistor leads to the corresponding
leads extending from the circuit board and crimp the "U" with
long nose pliers to insure metal to metal contact then solder
each connection.
Power Output, Transistor Device
Removal/Replacement
1. Heat and remove all solder from around the transistor leads.
2. Remove the heat sink mounting screw (if so equipped).
3. Carefully remove the transistor from the heat sink of the circuit
board.
4. Insert new transistor in the circuit board.
5. Solder each transistor lead, and clip off excess lead.
6. Replace heat sink.
Diode Removal/Replacement
1. Remove defective diode by clipping its leads as close as possible to diode body.
2. Bend the two remaining leads perpendicular y to the circuit
board.
3. Observing diode polarity, wrap each lead of the new diode
around the corresponding lead on the circuit board.
4. Securely crimp each connection and solder it.
5. Inspect (on the circuit board copper side) the solder joints of
the two "original" leads. If they are not shiny, reheat them and if
necessary, apply additional solder.
3. Solder the connections.
CAUTION: Maintain original spacing between the replaced
component and adjacent components and the circuit board to
prevent excessive component temperatures.
Circuit Board Foil Repair
Excessive heat applied to the copper foil of any printed circuit
board will weaken the adhesive that bonds the foil to the circuit
board causing the foil to separate from or "lift-off" the board. The
following guidelines and procedures should be followed whenever
this condition is encountered.
At IC Connections
To repair a defective copper pattern at IC connections use the
following procedure to install a jumper wire on the copper pattern
side of the circuit board. (Use this technique only on IC connections).
1. Carefully remove the damaged copper pattern with a sharp
knife. (Remove only as much copper as absolutely necessary).
2. carefully scratch away the solder resist and acrylic coating (if
used) from the end of the remaining copper pattern.
3. Bend a small "U" in one end of a small gauge jumper wire and
carefully crimp it around the IC pin. Solder the IC connection.
4. Route the jumper wire along the path of the out-away copper
pattern and let it overlap the previously scraped end of the
good copper pattern. Solder the overlapped area and clip off
any excess jumper wire.
At Other Connections
Use the following technique to repair the defective copper pattern
at connections other than IC Pins. This technique involves the
installation of a jumper wire on the component side of the circuit
board.
1. Remove the defective copper pattern with a sharp knife.
Remove at least 1/4 inch of copper, to ensure that a hazardous
condition will not exist if the jumper wire opens.
2. Trace along the copper pattern from both sides of the pattern
break and locate the nearest component that is directly connected to the affected copper pattern.
3. Connect insulated 20-gauge jumper wire from the lead of the
nearest component on one side of the pattern break to the lead
of the nearest component on the other side.
Carefully crimp and solder the connections.
CAUTION: Be sure the insulated jumper wire is dressed so the
it does not touch components or sharp edges.
Fuse and Conventional Resistor
Removal/Replacement
1. Clip each fuse or resistor lead at top of the circuit board hollow
stake.
2. Securely crimp the leads of replacement component around
notch at stake top.
This spec. sheet applies to LA46B Chassis applied LED TV all
models manufactured in TV factory
2. Specification
(1) Because this is not a hot chassis, it is not necessary to use
an isolation transformer. However, the use of isolation
transformer will help protect test instrument.
(2) Adjustment must be done in the correct order.
(3) The adjustment must be performed in the circumstance of
25 ±5 ºC of temperature and 65±10% of relative humidity if
there is no specific designation
(4) The input voltage of the receiver must keep 100~240V,
50/60Hz
(5) At first Worker must turn on the SET by using Power Only
key.
(6) The receiver must be operated for about 5 minutes prior to
the adjustment when module is in the circumstance of over
15
ºC
In case of keeping module is in the circumstance of 0°C, it
should be placed in the circumstance of above 15°C for 2
hours
In case of keeping module is in the circumstance of below
-20°C, it should be placed in the circumstance of above
15°C for 3 hours.
※ Caution
When still image is displayed for a period of 20 minutes or
longer (especially where W/B scale is strong.
Digital pattern 13ch and/or Cross hatch pattern 09ch), there
can some afterimage in the black level area
4. MAIN PCBA Adjustments
4.1. ADC Calibration
- An ADC cali bra tion is not necessary because MA IN SoC
(LGExxxx) is already calibrated from IC Maker
4.2. MAC Address, ESN Key and Widevine
Key, DTCP Key, HDCP1. 4, HDCP2.0
download
4.2.1. Equipment & Condition
1) Play file: keydownload.exe
4.2.2. Communication Port connection
1) Key Write: Com 1,2,3,4 and 115200 (Baudrate)
2) Barcode: Com 1,2,3,4 and 9600 (Baudrate)
4.2.3. Download process
1) Select the download items.
2) Mode check: Online Only
3) Check the test process
- US, C anada m odels : DETECT - > MAC_ WR ITE - >
WIDEVINE_WRITE
4) Play : START
5) Check of result: Ready, Test, OK or NG
6) Printer out (MAC Address Label)
4.2.4. Communication Port connection
1) Connect: PCBA Jig -> RS-232C Port == PC -> RS-232C
Port
3. Adjustment items
3.1. Final assembly adjustment
(1) White Balance adjustment
(2) RS-232C functionality check
(3) Factory Option setting per destination
(4) Shipment mode setting (In-Stop)
(5) GND and HI-POT test
3.2. Appendix
(1) Tool option menu, USB Download (S/W Update, Option
and Service only)
(2) Manual adjustment for ADC calibration and White balance.
(3) Shipment conditions, Channel pre-set
4.2.5. Download
1) US, Canada models (14Y LED TV + MAC + Widevine +
ESN Key + DTCP Key + HDCP1.4 and HDCP2.0)
5.1.1.1. W/B adj. Objective & How-it-works
(1) Objective: To reduce each Panel’s W/B deviation
(2) How-it-works: When R/G/B gain in the OSD is at 192, it
means the panel is at its Full Dynamic Range. In order to
prevent saturation of Full Dynamic range and data, one of
R/G/B is fixed at 192, and the other two is lowered to find
the desired value.
(3) Adj. condition: normal temperature
- Surrounding Temperature: 25±5 °C
- Warm-up time: About 5 Min
- Surrounding Humidity: 20% ~ 80%
- Before White balance adjustment, Keep power on status,
don’t power off
5.1.1.2. Adj. condition and cautionary items
(1) Lighting condition in surrounding area surrounding lighting
should be lower 10 lux. Try to isolate adj. area into dark
surrounding.
(2) Probe location: Color Analyzer (CA-210) probe should be
within 10cm and perpendicular of the module surface
(80°~ 100°)
(3) Aging time
- After Aging Start, Keep the Power ON sta tus during 5
Minutes.
- In case of LCD, Back-light on should be checked using no
5.1.5.2. Manual adjustment
(1) Set TV in Adj. mode using POWER ON
(2) Zero Calibrate the probe of Color Analyzer, then place it on
the center of LCD module within 10cm of the surface..
(3) Press ADJ key -> EZ adjust using adj. R/C à 9. White-
Balance then press the cursor to the right (KEY►). When
KEY(►) is pressed 206 Gray internal pa ttern will be
displayed.
(4) Adjust Cool modes
(i) Fix the one of R/G/B gain to 192 (default data) an d
decrease the others.
( If G gain is adjusted over 172 and R and B gain less than
192 , Adjust is O.K.)
(ii) If G gain is less than 172,
Increase G gain by up to 172, and then increase R gain and
G gain same amount of increasing G gain.
(iii) If R gain or B gain is over 255,
Readjust G gain less than 172, Conform to R gain is 255 or
B gain is 255
(5) Adjust two modes (Medium / Warm) Fix the one of R/G/B
gain to 192 (default data) and decrease the others.
(6) Adj. is completed, Exit adjust mode using “EXIT” key on
Remote controller.
▪ If internal pattern is not available, use RF input. In EZ Adj.
menu. 6.White Balance, you can select one of 2 Test-pattern:
ON, OFF. Default is inner (ON). By selecting OFF, you can
adjust using RF signal in 206 Gray pattern.
5.1.6. Reference (White Balance Adj. coordinate and
color temperature)
▪ Luminance: 204 Gray, 80IRE
▪ Standard color coordinate and temperature using CS-1000
(over 26 inch)
Mode
Cool0.2710.27013,000K0.0000
Medium0.2860.2899,300K0.0000
Warm0.3130.3296,500K0.0000
▪ S ta ndard color coord inate an d t emper at ure us ing
CA-210(CH 18) – ALEF
Mode
Cool0.271±0.0020.270±0.00213,000K0.0000
Medium0.286±0.0020.289±0.0029,300K0.0000
Warm0.313±0.0020.329±0.0026,500K0.0000
▪ S ta ndard color coord inate an d t emper at ure us ing
CA-210(CH-14)
Mode
Cool0.271±0.0020.270±0.00213,000K0.0000
Medium0.286±0.0020.289±0.0029,300K0.0000
Warm0.313±0.0020.329±0.0026,500K0.0000
Coordinate
XY
Coordinate
XY
Coordinate
XY
Temp△uv
Temp△uv
Temp△uv
5.1.7. Reference (White balance table)
▪ S ta ndard color coord inate and t emper ature us ing
CA-210(CH-14) – by aging time
(1) Normal line in Korea (From January to February) LGD
(LB5xxx, LB6xxx, LB7xxx, LB8xxx).
Aging time
(Min)
10-2286 295 301314328354
23-5284 290 299309326349
36-9282 287 297306324346
410-19279 283 294302321342
520-35276 278 291297318337
636-49274 275 289294316334
750-79273 272 288291315331
880-119272 271 287290314330
9Over 120271 270 286289313329
▪ S ta ndard color coord inate and t emper ature us ing
CA-210(CH-14) – by aging time
(2) Normal line (From March to December) : LGD
(LB5xxx, LB6xxx, LB7xxx, LB8xxx)
Aging time
(Min)
10-2282 289 297308324348
23-5281 287 296306323346
36-9279 284 294303321343
410-19277 280 292299319339
520-35275 277 290296317336
636-49274 274 289293316333
750-79273 272 288291315331
880-119272 271 287290314330
9Over 120271 270 286289313329
▪ S ta ndard color coord inate and t emper ature us ing
(1) RF input: Mono, 1KHz sine wave signal, 100% Modulation
(2) CVBS, Component: 1KHz sine wave signal (0.4Vrms)
(3) RGB PC: 1KHz sine wave signal (0.7Vrms)
6.2. Specification
NoItemMinTypMaxUnitRemark
1Audio
practical
max Output,
L/R
(Distortion=10%
max Output)
9.0
8.5
10.0
8.9
12.0
9.9WVrms
(1) Measurement
condition
- EQ/AVL/Clear
Voice: Off
(2) Speaker (8Ω
Impedance)
8. USB S/W Download
(optional, Service only)
(1) Put the USB Stick to the USB socket
(2) Automatically detecting update file in USB Stick
- If your downloaded program version in USB Stick is lower
than that of TV set, it didn’t work. Otherwise USB data is
automatically detected.
(3) Show the message “Copying files from memory”
7. GND and HI-POT Test
7.1. GND & HI-POT auto-check preparation
(1) Check the POWER CABLE and SIGNAL CABE insertion
condition
7.2. GND & HI-POT auto-check
(1) Pallet moves in the station. (POWER CORD / AV CORD is
tightly inserted)
(2) Connect the AV JACK Tester.
(3) Controller (GWS103-4) on.
(4) GND Test (Auto)
- If Test is failed, Buzzer operates.
- If Test is passed, execute next process (Hi-pot test).
(Remove A/V CORD from A/V JACK BOX)
(5) HI-POT test (Auto)
- If Test is failed, Buzzer operates.
- If Test is passed, GOOD Lamp on and move to next process
automatically.
7.3. Checkpoint
(1) Test voltage
- GND: 1.5KV/min at 100mA
- SIGNAL: 3KV/min at 100mA
(2) TEST time: 1 second
(3) TEST POINT
- GND Test = POWER CORD GND and SIGNAL CABLE GND.
- Hi-pot Test = POWER CORD GND and LIVE & NEUTRAL.
(4) LEAKAGE CURRENT: At 0.5mArms
(4) Updating is staring.
(5) Updating Completed, The TV will restart automatically
(6) If your TV is turned on, check your updated version and
Tool option.
* If downloading version is more high than your TV have, TV
can lost all channel data. In this case, you have to channel
recover. If all channel data is cleared, you didn’t have a DTV/
ATV test on production line.
* After downloading, TOOL OPTION setting is needed again.
(1) Push "IN-START" key in service remote controller.
(2) Select "Tool Option 1" and Push “OK” button.
(3) Punch in the number. (Each model has their number.)
CH14)
(2) Adj. Computer (During auto adj., RS-232C protocol is
needed)
(3) Adjust Remocon
(4) Vi deo Sig nal Generator MSP G-925F 720p/216 -Gray
(Model: 217, Pattern: 78)
9.1.3. Adjustment
(1) Set TV in Adj. mode using POWER ON
(2) Zero Calibrate the probe of Color Analyzer, then place it on
the center of LCD module within 10cm of the surface.
(3) Press ADJ key -> EZ adjust using adj. R/C -> 6. White-
Balance then press the cursor to the right (KEY►). When
KEY(►) is pressed 216 Gray interna l pattern will be
displayed.
(4) One of R Gain / G Gain / B Gain should be fixed at 192,
and the rest will be lowered to meet the desired value.
(5) Adj. is performed in COOL, MEDIUM, WARM 3 modes of
color temperature.
▪ If internal pattern is not available, use RF input. In EZ Adj.
menu 6.White Balance, you can select one of 2 Test-pattern:
ON, OFF. Default is inner(ON). By selecting OFF, you can
adjust using RF signal in 216 Gray pattern.
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.
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.
MID_MAIN_3
2011.12.09
10
A_RVREF1
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
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.
2011.12.09
DDR ONE SIDE12
SPDIF
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
SPDIF OUT
SPDIF_OUT
R3610
+3.3V_NORMAL
R3611
2.7K
OPT
33
C3602
0.1uF
16V
VINPUT
GND
Fiber Optic
1
VCC
2
JK3602
JST1223-001
3
4
FIX_POLE
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.
JACK HIGH / MID
2011.11.21
36
KEY1
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
KEY2
Place Near Micom
R4117
10K
5%
R4113
100
R4114
100
+3.5V_ST
R4118
10K
5%
LOGO_LIGHT
+3.5V_ST
+3.5V_ST
R4132
LOGO_LIGHT
10K
C4100
0.1uF
BLM18PG121SN1D
10K
OPT
R4133
C4120
0.1uF
16V
LOGO_LIGHT
C4102
0.1uF
D4100
5.6V
AMOTECH CO., LTD.
L4100
AMOTECH CO., LTD.
OPT
C4104
1000pF
50V
1K
R4134
LOGO_LIGHT
IR
D4101
5.6V
OPT
LED_R
LOGO_LIGHT
Q4100
MMBT3904(NXP)
+3.5V_ST
R4107
10K
B
R4125 10K
LOGO_LIGHT
C
E
C4107
100pF
50V
LED_R
R4131
22
D4104
5.6V
EYE_SCL
EYE_Q_10P
EYE_SDA
EYE_Q_10P
OPT
AMOTECH CO., LTD.
R4137
100
D4105
ADMC 5M 02 200L
OPT
R4138
100
D4106
ADMC 5M 02 200L
OPT
KEY1
KEY2
+3.5V_ST
LOGO/LED_R
12507WR-08L
12507WR-10L
GND
GND
IR
GND
NON_EYE_Q_8P
P4101
P4102
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
EYE_Q_10P
11
P4100
12507WR-06L
WIFI
7
L4111
MAX 0.4A
C4113
C4112
10uF
10uF
10V
10V
WIFI
WIFI
1
2
3
4
5
6
ZD4100
ADLC 5S 02 015
WIFI_ESD
22
R4130
OPT
22
R4136
WIFI
BLM18PG121SN1D
C4111
0.1uF
16V
WIFI
For EMI
WIFI_DM
WIFI_DP
ZD4101
ADLC 5S 02 015
WIFI_ESD
WOL/ETH_POWER_ON
WOL/WIFI_POWER_ON
WIFI
+3.5V_ST_WAKE
TP4100
TP4101
TP4102
TP4103
TP4104
RTS
M_REMOTE_RX
M_REMOTE_TX
M_RFModule_RESET
CTS
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.
IR / KEY
2011.11.21
41
DEBUG FOR INTERNAL AMOD.
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
OPT
R3801
0
TU_DEBUG
R3800
75
1%
DTV/MNT_V_OUT_SOC
For TU_Debug
Disconnet R374
UART FOR DEBUG
SOC_RX
SOC_TX
+3.5V_ST
UART_4PIN_STRAIGHT
P3800
12507WS-04L
1
2
3
4
5
AV/COMPONENT REAR
Mold_AV
PPJ245N2-01
JK3800-*1
7A
[GN/YL]E-LUG
6A
[GN/YL]O-SPRING
4A
[GN/YL]CONTACT
5B
[BL]O-SPRING
8C
[RD1]E-LUG-S
6C
[RD1]O-SPRING
4C
[RD1]CONTACT
5D
[WH]O-SPRING
4E
[RD2]CONTACT
6E
[RD2]O-SPRING
7E
[RD2]E-LUG
NON_Mold_AV
PPJ245-01
JK3800
7A
6A
4A
5B
8C
6C
4C
5D
4E
6E
7E
+3.3V_NORMAL
ZD3804
ADUC 5S 02 0R5L
OPT
R3806
D3803
5.6V
AV_COMP_ESD
COMP1/AV1/DVI_L_IN
D3802
5.6V
10K
R3811
1K
C3800
0.1uF
16V
COMP1/AV1/DVI_R_IN
+3.3V_NORMAL
R3810
10K
D3800
5.6V
AV_COMP_ESD
[GN]E-LUG
[GN]C-SPRING
[GN]CONTACT
[BL]C-SPRING
[RD1]E-LUG-S
[RD1]C-SPRING
[RD1]CONTACT
[WH]C-SPRING
[RD2]CONTACT
[RD2]C-SPRING
[RD2]E-LUG
COMP1_Pb
COMP1_Pr
D3801
5.6V
AV_COMP_ESD
AV_COMP_ESD
Apply "AV_COMP_ESD" when your model’s ESD Test is failed
AV1_CVBS_DET
R3812
1K
COMP1_Y/AV1_CVBS
COMP1_DET
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.
JACK_COMMON
2011.11.21
38
AMP_MUTE
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
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.
AMP_NEO
2011.11.21
54
EARPHONE AMP
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
HP_OUT_H13
C6104-*1
18pF
IC6100
TPA6138A2
HP_OUT_H13
C6109-*1
18pF
HP_ROUT_MAIN
HP_OUT_H13
R6103-*1
43K
1%
C6100
1uF
10V
HP_OUT
HP_ROUT_AMP
SIDE_HP_MUTE
HP_OUT
R6100
10K
C6104
180pF
R6103
33K
HP_OUT_MTK
HP_OUT_MTK
HP_OUT
R6106
43K
+3.3V_NORMAL
4.7K
R6105
HP_OUT
+INR
1
C6108
10pF
50V
C6102
1uF
10V
-INR
OUTR
GND_1
MUTE
VSS
CN
HP_OUT
1%
HP_OUT
2
3
4
5
6
7
HP_OUT
HP_OUT
C6103
1uF
10V
+INL
14
-INL
13
12
11
10
HP_OUT
OUTL
UVP
GND_2
VDD
9
CP
8
C6106
10pF
50V
HP_OUT_MTK
HP_OUT
R6104
43K
1%
+3.3V_NORMAL
HP_OUT
HP_OUT
C6109
180pF
R6102
33K
HP_OUT_MTK
L6100
120-ohm
BLM18P G12 1SN1D
HP_OUT
C6105
1uF
10V
C6107
0.1uF
16V
HP_OUT
R6101
10K
C6101
1uF
10V
HP_OUT
HP_LOUT_AMP
HP_LOUT_MAIN
HP_OUT_H13
R6102-*1
43K
1%
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.
HEADPHONE AMP
2011.09.29
61
LOCAL DIMMING
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
[To LED DRIVER]
P7600
12507WR-08L
L/DIM_OUT_8P
1
2
3
4
5
6
7
8
9
R7601
10K
L/DIM_OUT_8P
R7603
33
L/DIM_OUT_8P
R7602
33
L/DIM_OUT_8P
L/DIM0_SCLK_PWR
L/DIM0_MOSI_PWR
I2C_SCL1
I2C_SDA1
L/DIM0_VS_PWR
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.
LOCAL DIMMING
2011.12.13
76
eMMC I/F
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
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.
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
OPT
C5450
10uF
35V
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.
M13 EAX64872104 BASE
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
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.
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.
MID_MAIN_2
2013.07.16
509
FROM LPB & PSU
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
+3.5V_ST
5V
ZD2403
+12V
C2401
0.1uF
50V
IC2401-*5
APX803D29
VCC
P_DET_BOTH_12_3.5V_DIODES
P_DET_BOTH_12_3.5V
P_DET_BOTH_12_3.5V
RESET
3
2
1
GND
R2410-*1
2.7K
1%
R2409-*1
1.2K
1%
Power_DET
On-semi
+3.5V_ST
RL_ON
UBW2012-121F
C2406
0.1uF
16V
L2401
UBW2012-121F
MMBT3906(NXP)
R2408
10K
R2401
10K
L2402
L/DIM0_MOSI_PWR
IC2401-*3
APX803D29
VCC
3
1
GND
P_DET_BOTH_24_3.5V_DIODES
IC2401-*1
NCP803SN293
VCC
3
GND
R2418-*1
100
P_DET_BOTH_24_3.5V
R2416-*1
100K
P_DET_BOTH_24_3.5V
+12V
P_DET_ONLY_12V
R2410
2.7K
1%
P_DET_ONLY_12V
R2409
1.2K
1%
P_DET_BOTH_24_3.5V
P_DET_BOTH_24_3.5V
Q2401
3
1
2
RESET
2
RESET
2
1
P_DET_BOTH_24_3.5V_OnSemi
C2410-*1
0.1uF
50V
P_DET_BOTH_24_3.5V
+3.5V_ST
R2413
0
5%
P_DET_BOTH_24_3.5V
+3.5V_ST
+24V
R2400
R2412
0
8.2K
P_DET_BOTH_12_3.5V
R2411
1.5K
1%
P_DET_BOTH_12_3.5V
DEV_POWER_WAFER_18PIN
PWR ON
3.5V
3.5V
GND
24V
GND
12V
12V
GND
GND
GND
L/DIM0_MOSI
SMAW200-H18S5
DEV_POWER_WAFER_24PIN
VCC
C2411
0.1uF
16V
VCC
C2410
0.1uF
50V
P2400
SMAW200-H24S5
INV ON
1
1
2
2
PDIM#1
3
3
4
4
3.5V
5
5
6
6
PDIM#2
7
7
8
8
24V
10
10
9
9
GND
11
11
12
12
12V
13
13
14
14
NC
15
15
16
16
GND
17
17
18
18
GND
20
19
L/DIMO_VS
21
22
19
L/DIM0_SCLK
23
24
.
25
P2401
P_DET_BOTH_12_24V
P_DET_BOTH_12_24V
P_DET_BOTH_12_24V
P_DET_BOTH_12_24V
R2417
100K
IC2402
NCP803SN293
3
2
1
GND
P_DET_OnSemi
P_DET_BOTH_12_3.5V
R2416
100K
IC2401
NCP803SN293
3
2
1
GND
P_DET_BOTH_12_3.5V_OnSemi
M13 vs 14y Smart TV
Apply New Wafer (P2401-1*1)
Change Pin Assign(P2401)
R2412-*1
8.2K
R2411-*1
1.5K
1%
R2410-*2
2.7K
1%
R2409-*2
1.2K
1%
R2419
RESET
RESET
100
R2418
100
P_DET_BOTH_12_3.5V
PWM_DIM1
PWM_DIM2
P_DET_BOTH_12_24V
R2416-*2
100K
R2418-*2
100
P_DET_BOTH_12_24V
+3.5V_ST
R2421
10K
OPT
not to RESET at 8kV ESD
+3.3V_NORMAL
R2425
100
L2403
UBW2012-121F
L/DIM0_VS_PWR
L/DIM0_SCLK_PWR
IC2401-*4
APX803D29
VCC
3
GND
IC2401-*2
NCP803SN293
VCC
3
GND
IC2402-*1
APX803D29
VCC
3
1
GND
POWER_DET
C2412
0.1uF
16V
24V-->3.48V
12V-->3.58V
ST_3.5V-->3.5V
R2426
1K
INV_CTL
+24V
OPT
C2413
0.1uF
50V
RESET
2
1
P_DET_BOTH_12_24V_DIODES
RESET
2
1
P_DET_BOTH_12_24V_OnSemi
RESET
2
P_DET_DIODES
C2458
10uF
35V
C2410-*2
0.1uF
50V
P_DET_BOTH_12_24V
L/DIM_OUT
R2459
L/DIM0_SCLK
L/DIM0_MOSI
L/DIM0_VS
+24V
L/DIM_OUT
L/DIM_OUT
R2457
4.7K
L2406
BLM18PG121SN1D
C2417
10uF
35V
33
R2458
33
R2456
33
L/DIM_OUT
C2422
0.1uF
50V
DDR MAIN 1.5V
HDMI LEAKAGE Workaround in MTK A2(A0) (Default= with HDMI_LEAKAGE)
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.
OPT
2.5V
ZD2402
DDR MAIN 1.5V
POWER_ON/OFF2_1
10K
R2430
C2420
3A
EP[GND]
1
THERMAL
2
3
4
3A
AGND
0.1uF
16V
BOOT14PWRGD15EN16VIN_3
13
PH_3
12
PH_2
11
17
PH_1
10
IC2403
SS/TR
TPS54319TRE
9
7
5
8
COMP
RT/CLK6VSENSE
+3.5V_ST
L2405
BLM18PG121SN1D
VIN_1
VIN_2
C2448
10uF
10V
C2418
10uF
10V
C2419
0.1uF
16V
GND_1
GND_2
Vout=0.827*(1+R1/R2)=1.521V
R2431
15K
1/16W 5%
C2455
0.1uF
16V
0.01uF
R2432
C2450
50V
330K1/16W5%
4700pF
NR5040T2R2N
C2421
50V
L2411
2.2uH
C2456
10uF
10V
C2451
10uF
10V
C2454
10uF
10V
C2447
10uF
10V
R2433
56K
1/16W
1%
R2455
R1
47K 1%
R2
+1.5V_DDR
C2452
100pF
50V
C2457
0.1uF
16V
OPT
2.5V
ZD2401
BLM18PG121SN1D
Placed on SMD-TOP
C2430
10uF
16V
POWER_ON/OFF2_2
L2409
+3.3V_NORMAL
+12V
IC2405
TPS54327DDAR
EN
1
VFB
9
2
THERMAL
VREG5
C2431
10uF
16V
10K
R2414
C2436
0.1uF
C2434
0.1uF
16V
OPT
16V
3
SS
4
C2415
C2416
1uF
3300pF
10V
50V
Vout=0.765*(1+R1/R2)
30K
3.3K
10K
1%
1/16W
1%
R1
1%
R2
+3.3V_NORMAL
5V
ZD2400
ZENER_3.3V_NORMAL
MAX 3.4 A
L2410
[EP]GND
VIN
16V
8
0.1uF
C2437
VBST
7
SW
6
GND
5
2uH
NR8040T2R0N
MID_POWER
C2438
10uF
10V
C2439
10uF
10V
C2442
10uF
10V
C2444
10uF
10V
C2445
100pF
50V
OPT
R2427
R2440
R2428
2011.11.25
24
Renesas MICOM
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
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.
NetCast4.0
MICOM (RENESAS)
2013.02.05
530
SIDE
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
BODY_SHIELD
GND
20
FREEPORT
19
18
17
16
15
14
13
12
11
10
EAG62611204
51U019S-312HFN-E-R-B-LG
JK3301
SIDE
BODY_SHIELDGND
20
HP_DET
FREEPORT
19
5V
18
GND
17
DDC_DATA
16
DDC_CLK
15
ARC
14
CE_REMOTE
13
CK-
12
CK_GND
11
CK+
10
D0-
9
D0_GND
8
EAG62611204
D0+
7
D1-
6
D1_GND
5
D1+
4
D2-
3
D2_GND
2
D2+
1
JK3303
51U019S-312HFN-E-R-B-LG
9
8
7
6
5
4
3
2
1
HP_DET
5V
GND
DDC_DATA
DDC_CLK
NC
CE_REMOTE
CK-
CK_GND
CK+
D0-
D0_GND
D0+
D1-
D1_GND
D1+
D2-
D2_GND
D2+
VA3302
VA3304
ADUC 20S 02 010L
VA3305
ADUC 20S 02 010L
CEC_REMOTE
ADUC 20S 02 010L
BLM18PG121SN1D
VA3303
ADUC 20S 02 010L
CEC_REMOTE
CK+_HDMI4_JACK
D0-_HDMI4_JACK
D0+_HDMI4_JACK
D1-_HDMI4_JACK
D1+_HDMI4_JACK
D2-_HDMI4_JACK
D2+_HDMI4_JACK
5V_HDMI_3_JACK
MMBT3904(NXP)
R3327
100K
HDMI_ARC
D3320
IP4294CZ10-TBR
VA3313
ADUC 20S 02 010L
1
2
3
4
5
D3321
IP4294CZ10-TBR
1
2
3
4
5
5VBUS
L3303
VA3300
ADUC 20S 02 010L
R3386
180K
R3387
120K
UI : HDMI3
R3330
1K
C
Q3303
B
E
VA3306
ADUC 20S 02 010L
10
9
8
7
6
10
9
8
7
6
UI : HDMI1
+12V
+12V
R3308 100
R3309 100
VA3301
ADUC 20S 02 010L
R3373
1K
1/16W
C3322
5%
0.1uF
16V
OPT
R3331
1K
R3328 100
R3329 100
VA3307
ADUC 20S 02 010L
CK-_HDMI3_JACK
CK+_HDMI3_JACK
D0-_HDMI3_JACK
D0+_HDMI3_JACK
D1-_HDMI3_JACK
D1+_HDMI3_JACK
D2-_HDMI3_JACK
D2+_HDMI3_JACK
OPT
R3384
1K
G
R3370
1K
G
DDC_SDA_MHL
DDC_SCL_4_JACK
Q3301
MMBT3904(NXP)
R3336
4.7K
SIL_HPD/CBUS
S
OPT
Q3304
2N7002K
D
R3371
820
D
Q3314
PMBFJ177
S
+3.5V_ST
R3374
10K
C
B
E
HDMI_HPD_3_JACK
DDC_SDA_3_JACK
DDC_SCL_3_JACK
R3375
10K
R3376
0
B
E
MMBT3906(NXP)
Q3302
C
(CD_SENCE)
SIDE
BODY_SHIELD
FREEPORT
EAG62611204
JK3300
51U019S-312HFN-E-R-B-LG
MHL_DET
20
Improve EMI(Apply the Mold B/C Model)
HOT_PLUG_DETECT
VDD[+5V]
DDC/CEC_GND
SDA
SCL
RESERVED
CEC
TMDS_CLK-
TMDS_CLK_SHIELD
TMDS_CLK+
TMDS_DATA0-
TMDS_DATA0_SHIELD
TMDS_DATA0+
TMDS_DATA1-
TMDS_DATA1_SHIELD
TMDS_DATA1+
TMDS_DATA2-
TMDS_DATA2_SHIELD
TMDS_DATA2+
5V_HDMI_1_SOC
MMBT3904(NXP)
R3301
100K
CEC_REMOTE
D3319
IP4294CZ10-TBR
1
2
3
4
5
D3318
IP4294CZ10-TBR
1
2
3
4
5
BODY_SHIELD
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
HP_DET
5V
GND
DDC_DATA
DDC_CLK
NC
CE_REMOTE
CK-
CK_GND
CK+
D0-
D0_GND
D0+
D1-
D1_GND
D1+
D2-
D2_GND
D2+
BODY_SHIELD
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
FOOSUNG
DAADR019A
JK3300-*1
VA3310
ADUC 20S 02 010L
VA3311
ADUC 20S 02 010L
10
9
8
7
6
10
9
8
7
6
Q3300
20
FOOSUNG
DAADR019A
JK3301-*1
C
E
19
HOT_PLUG_DETECT
18
VDD[+5V]
17
DDC/CEC_GND
16
SDA
15
SCL
14
RESERVED
13
CEC
12
TMDS_CLK-
11
TMDS_CLK_SHIELD
10
TMDS_CLK+
9
TMDS_DATA0-
8
TMDS_DATA0_SHIELD
7
TMDS_DATA0+
6
TMDS_DATA1-
5
TMDS_DATA1_SHIELD
4
TMDS_DATA1+
3
TMDS_DATA2-
2
TMDS_DATA2_SHIELD
1
TMDS_DATA2+
R3304
1K
R3305
1K
B
R3302 100
R3303 100
VA3308
ADUC 20S 02 010L
VA3309
CK-_HDMI1_SOC
CK+_HDMI1_SOC
D0-_HDMI1_SOC
D0+_HDMI1_SOC
D1-_HDMI1_SOC
D1+_HDMI1_SOC
D2-_HDMI1_SOC
D2+_HDMI1_SOC
UI : HDMI2
#SIL_RESET
BODY_SHIELD
20
19
18
17
16
15
14
13
12
11
10
FOOSUNG
DAADR019A
JK3303-*1
R3306
4.7K
HDMI_INTERNAL_EDID
HDMI_HPD_1_SOC
R3321
4.7K
HDMI_EXT_EDID
ADUC 20S 02 010L
HOT_PLUG_DETECT
VDD[+5V]
DDC/CEC_GND
SDA
SCL
RESERVED
CEC
TMDS_CLK-
TMDS_CLK_SHIELD
TMDS_CLK+
9
TMDS_DATA0-
8
TMDS_DATA0_SHIELD
7
TMDS_DATA0+
6
TMDS_DATA1-
5
TMDS_DATA1_SHIELD
4
TMDS_DATA1+
3
TMDS_DATA2-
2
TMDS_DATA2_SHIELD
1
TMDS_DATA2+
DDC_SDA_1_SOC
DDC_SCL_1_SOC
VDD3V3_HDMI
R3356
10K
C3314
OPT
0.1uF
16V
MHL_DET
DDC_SDA_MHL
DDC_SCL_MHL
SIL_HPD/CBUS
MHL_DET
ADUC 20S 02 010L
1.2V_MHL
PWR5V_DET
R3351
OPT
4.7K
5V_MHL
C3313
0.1uF
16VCK-_HDMI4_JACK
DDC_SCL_4_JACK
CEC_REMOTE
VA3312
VDD3V3_HDMI
RSVDL1
VDD12_1
RSVDL2
RESET
INT
DSDA
DSCL
CBUS/HPD
VDD5_IN
+3.5V_ST
5V_MHL
R3379
R3381
22K
B
HDMI_EXT_EDID
D3303
IP4294CZ10-TBR
VDD33_2
[EP]GND
40
1
2
3
4
5
6
7
8
9
10
11
RSVDNC
5V_MHL
R3361
47K
22K
C
Q3311
MMBT3904(NXP)
E
E0
E1
E2
VSS
D2-_HDMI4_JACK
D2+_HDMI4_JACK
9
10
1827364
RX1+
RX2-
RX2+
37
38
39
THERMAL
41
IC3304
SIL1292CNUC
12
13
14
PS_CTRL
HDMI_DET
VREG33_OUT
HDMI_DET
A2CA1
D3301
MMBD6100
PMV48XP
HDMI_EXT_EDID
MMBT3904(NXP)
IC3300
M24C02-RMN6T
1
2
HDMI_EXT_EDID
3
4
D0+_HDMI4_JACK
D1+_HDMI4_JACK
D1-_HDMI4_JACK
9
10
D3302
IP4294CZ10-TBR
1827364
5
5.1
R3388
R3389
RXC+
RX0-
RX0+
RX1-
34
35
36
15
16
17
CSDA18CSCL
GPIO0
GPIO1/CI2CA
R3363 10K
I2C_SDA4
5V_MHL
30V
BAT54_SUZHO
D3304
Q3309
D
S
G
Q3313
VCC
8
WC
7
SCL
6
SDA
5
CK-_HDMI4_JACK
CK+_HDMI4_JACK
D0-_HDMI4_JACK
5
VDD3V3_HDMI
5.1
VDD33_1
RXC-
31
32
33
30
29
28
27
26
25
24
23
22
21
19
20
1.2V_MHL
CEC_A
VDD12_2
I2C_SCL4
R3338
10K
30V
R3380
1.8K
E
B
C
HDMI_EXT_EDID
R3319
22
HDMI_EXT_EDID
R3320
22
HDMI_EXT_EDID
Field Issue
Latch Up
(+3.3V_NORMAL -> VDD3V3)
1.2V_MHL
AVDD12
TXCTXC+
TX0TX0+
TX1TX1+
TX2TX2+
HPD_IN
VDD3V3_HDMI
OPT
R3355
4.7K
OPT
R3345
4.7K
DDC_SCL_MHL
30V
D3312
D3313
BAT54_SUZHO
BAT54_SUZHO
R3307
1.8K
DDC_SDA_MHL
DDC_SCL_MHL
5V_HDMI_1_SOC
EDID_WP
HDMI_EXT_EDID
R3390
10K
R3323
47K
HDMI_EXT_EDID
CK-_HDMI4_MHL
CK+_HDMI4_MHL
D0-_HDMI4_MHL
D0+_HDMI4_MHL
D1-_HDMI4_MHL
D1+_HDMI4_MHL
D2-_HDMI4_MHL
D2+_HDMI4_MHL
+5V_NORMAL
A2CA1
MMBD6100
D3300
R3325
47K
HDMI_EXT_EDID
R3348
10K
#MHL_OCP
C3312
10uF
10V
DDC_SCL_1_SOC
DDC_SDA_1_SOC
CHANGE NET Demod_Core
Demod_Core
BLM18PG121SN1D
TU_DEMOD_CORE
VDD3V3_HDMI
5V_MHL
HDMI_HPD_4_MHL
R3358
4.7K
OPT
MHL_DET
TP3300
5VBUS
D3322
R3359
100K
#MHL_OCP
30V
C3302
0.1uF
16V
L3302
C3311
0.1uF
16V
1.2V_MHL
C3318
0.1uF
16V
R3357
10K
Current Limit
OUT
1
GND
2
OC
3
+5V_NORMAL
A2CA1
R3339
R3337
47K
47K
Close to SIL1292
C3320
C3316
0.1uF
0.1uF
16V
16V
+5V_NORMAL
BLM18PG121SN1D
5V_MHL
R3362
10K
C
Q3310
B
MMBT3904(NXP)
E
IC3301
TPS2051BDBVR
D3314
MMBD6100
L3301
IN
5
ZD501
5V
OPT
EN
4
R3340
47K
HDMI_INTERNAL_EDID
R3377
47K
R3332
5V_MHL
HDMI_DET
5V_MHL
10K
R3378
C3321
0.1uF
16V
C3315
0.1uF
16V
MHL_DET
47K
HDMI_INTERNAL_EDID
DDC_SCL_1_SOC
DDC_SDA_1_SOC
DDC_SDA_MHL
DDC_SCL_3_JACK
DDC_SDA_3_JACK
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.
HDMI 4
2013.07.16
533
RS-232C Control INTERFACE(NORTH AMERICA)
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
+3.5V_ST
RS232C_US
C3713
0.1uF
VCC
16
GND
15
DOUT1
14
RIN1
13
ROUT1
12
DIN1
11
DIN2
10
ROUT2
9
SOC_RX
SOC_TX
RS232C_US
RS232C_US
RS232C_US
RS232C_US
C3708
C3709
C3710
C3711
0.1uF
0.1uF
0.1uF
0.1uF
DOUT2
RS232C_US
IC3700
MAX3232CDR
C1+
1
V+
2
C1-
3
C2+
4
C2-
5
V-
6
7
RIN2
8
EAN41348201
OPT
ZD3702
ADUC 20S 02 010L
20V
OPT
ZD3703
ADUC 20S 02 010L
20V
HP_ROUT
HP_LOUT
HP_DET
Closed to Jack
+3.3V_NORMAL
R3706
10K
R3705
1K
100
100
R3720
R3721
RS232C_US
RS232C_US
E_SPRING
R_SPRING
T_SPRING
B_TERMINAL2
T_TERMINAL2
PEJ034-01
3
4
5
7B
6B
JK3700
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.
14Y Phone Jack
2013.08.27
537
/USB_OCD1
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
USB_CTL1
R4500
10K
OPT
+3.3V_NORMAL
R4501
10K
+5V_NORMAL
C4500
0.1uF
16V
OCP USB1
IC4500
AP2171DM8G
GND
1
IN_1
2
IN_2
3
EN
4
USB1
DVR Ready
+5V_USB_1
MAX 1.5A
+5V_USB_1
NC
8
OUT_2
7
OUT_1
6
FLG
5
C4501
10uF
10V
USB_DM1
USB_DP1
USB_Serial_2.2ohm
USB_Serial_2.2ohm
C4502
10uF
10V
R4502
2.2
R4503
2.2
3AU 04S-3 05-Z C-(LG )
JK4 500
1234
USB DOWN STR EAM
5
USB_Serial_0ohm
R4502-*1
0
USB_Serial_0ohm
R4503-*1
0
C4302
0.1uF
16V
USB_CTL2
USB_CTL3
OCP USB2/3
+5V_NORMAL
GND
IN
EN1
EN2
USB2/3_OCP_TI
DIODES TAIWAN INC
GND
IN
EN1
EN2
USB2/3_OCP_DIODES
IC4306
TPS2066CDGNR
1
9
2
THERMAL
3
4
IC4306-*1
1
9
2
THERMAL
3
4
8
7
6
5
8
7
6
5
[EP]GND
FLT1
OUT1
OUT2
FLT2
C4337
10uF
[EP]GND
FLG1
OUT1
OUT2
FLG2
+5V_USB_2
+3.3V_NORMAL
10K
10K
R4301
R4302
+5V_USB_2
+5V_USB_3
C4301
10uF
10V
10V
/USB_OCD2
/USB_OCD3
USB_DM2
USB_DP2
+5V_USB_3
C4322
10uF
10V
USB2
MAX 1.5A
USB_Serial_2.2ohm
R4303
2.2
USB_Serial_2.2ohm
R4304
2.2
USB3
3AU 04S-3 05-Z C-(LG )
JK4 302
1234
USB DOWN STR EAM
5
USB_Serial_0ohm
R4303-*1
0
USB_Serial_0ohm
R4304-*1
0
MAX 1.5A
3AU 04S-3 05-Z C-(LG )
USB_DM3
USB_DP3
C4310
10uF
10V
USB_Serial_2.2ohm
R4305
2.2
USB_Serial_2.2ohm
R4306
2.2
JK4 300
1234
USB DOWN STREAM
5
USB_Serial_0ohm
R4305-*1
0
USB_Serial_0ohm
R4306-*1
0
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.
USB2_USB3
2013.11.25
543
MOLD_LAN_JACK
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
JK5000-*1
RV3-2032ADA3
Ethernet Block
C5000
C5001
0.1uF
0.01uF
16V
50V
METAL_LAN_JACK
JK5000
RJ45VT-01SN002
TD+
1
TCT
2
TD-
3
RD+
4
RCT
5
RD-
6
R7
7
GND
8
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
D5000
5.5V
LAN_ESD
D5001
5.5V
LAN_ESD
D5002
5.5V
LAN_ESD
D5003
5.5V
LAN_ESD
EPHY_TDP
EPHY_TDN
EPHY_RDP
EPHY_RDN
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.
LAN_VERTICAL
2013.11.26
550
A1A1B1
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
47
SHIELD
DEV_TU_AJ_T
TU6401-*1
TDJH-G101D
B1[+3.3V]
1
NC_1
2
IF_AGC
3
SCL
4
SDA
5
IF[P]
6
IF[N]
7
NC_2
8
NC_3
9
B1
DEV_TU_BR
TU6402-*1
TDJM-B101F
B1[+3.3V]
1
RF_SW_CTL
2
AIF_AGC
3
SCL_RF
4
SDA_RF
5
AIF[P]
6
AIF[N]
7
NC_1
8
NC_2
9
NC_3
10
NC_4
11
ERROR
12
GND_1
13
MCLK
14
SYNC
15
VAILD
16
D0
17
D1
18
D2
19
D3
20
D4
21
D5
22
D6
23
D7
24
RESET_DEMOD
25
B2[+3.3V]
26
SCL_DEMOD
27
B3[+1.1V]
28
NC_5
29
SDA_DEMOD
30
A1
B1B1A1
47
SHIELD
DEV_TU_CO_T2
TU6402-*2
TDJM-K101F
B1[+3.3V]
1
RF_SW_CTL
2
AIF_AGC
3
SCL_RF
4
SDA_RF
5
AIF[P]
6
AIF[N]
7
NC_1
8
NC_2
9
NC_3
10
NC_4
11
ERROR
12
GND_1
13
MCLK
14
SYNC
15
VAILD
16
D0
17
D1
18
D2
19
D3
20
D4
21
D5
22
D6
23
D7
24
RESET_DEMOD
25
B2[+3.3V]
26
SCL_DEMOD
27
B3[+1.1V]
28
NC_5
29
SDA_DEMOD
30
A1
B1B1A1
47
SHIELD
DEV_TU_AJ_T2
TU6402-*3
TDJM-G105D
B1[+3.3V]
1
NC_1
2
AIF_AGC
3
SCL_RF
4
SDA_RF
5
AIF[P]
6
AIF[N]
7
NC_2
8
NC_3
9
NC_4
10
B2[+3.3V]
11
ERROR
12
GND_1
13
MCLK
14
SYNC
15
VAILD
16
D0
17
D1
18
D2
19
D3
20
D4
21
D5
22
D6
23
D7
24
RESET_DEMOD
25
B3[+3.3V]
26
SCL_DEMOD
27
B4[+1.1V]
28
F22_OUTPUT
29
SDA_DEMOD
30
A1
B1B1A1
47
SHIELD
DEV_TU_HK
TU6402-*4
TDJM-C301D
B1[+3.3V]
1
RF_SW_CTL
2
NC_1
3
SCL_RF
4
SDA_RF
5
NC_2
6
NC_3
7
SIF
8
CVBS
9
NC_4
10
NC_5
11
ERROR
12
GND_1
13
MCLK
14
SYNC
15
VAILD
16
D0
17
D1
18
D2
19
D3
20
D4
21
D5
22
D6
23
D7
24
RESET_DEMOD
25
B2[+3.3V]
26
SCL_DEMOD
27
B3[+1.1V]
28
NC_6
29
SDA_DEMOD
30
A1
B1B1A1
47
SHIELD
A1
A1
DEV_TU_KR_US
TU6401
TDJH-H101F
B1[+3.3V]
1
NC_1
2
IF_AGC
3
SCL
4
SDA
5
IF[P]
6
IF[N]
7
NC_2
8
NC_3
9
B1
B1
47
SHIELD
TU_GND_A
TU_GND_B
TU_GND_A
DEV_TU_TW
TU6403
TDJK-T101F
B1[+3.3V]
1
RF_S/W_CTL
2
IF_AGC
3
SCL
4
SDA
5
IF[P]
6
IF[N]
7
NC_1
8
NC_2
9
A1
A1
47
SHIELD
B1
B1
TU_GND_B
DEV_TU_KR_PIP
TU6402
TDJM-H101F
B1[+3.3V]
1
NC_1
2
M_DIF_AGC
3
SCL_RF
4
SDA_RF
5
M_DIF[P]
6
M_DIF[N]
7
S_SIF
8
S_CVBS
9
NC_2
10
B2[+3.3V]
11
S_ERROR
12
GND_1
13
S_MCLK
14
S_SYNC
15
S_VALID
16
S_DATA
17
NC_3
18
NC_4
19
NC_5
20
NC_6
21
NC_7
22
NC_8
23
NC_9
24
S_RESET_DEMOD
25
B3[+3.3V]
26
SCL_DEMOD
27
B4[+1.1V]
28
NC_10
29
SDA_DEMOD
30
+3.3V_LNA_TU
RF_SWITCH_CTL_TU
IF_AGC_TU
I2C_SCL6_TU
I2C_SDA6_TU
IF_P
IF_N
TU_SIF_TU
TU_CVBS_TU
+3.3V_TU
FE_DEMOD1_TS_ERROR
FE_DEMOD1_TS_CLK
FE_DEMOD1_TS_SYNC
FE_DEMOD1_TS_VAL
FE_DEMOD1_TS_DATA[0]
FE_DEMOD1_TS_DATA[1]
FE_DEMOD1_TS_DATA[2]
FE_DEMOD1_TS_DATA[3]
FE_DEMOD1_TS_DATA[4]
FE_DEMOD1_TS_DATA[5]
FE_DEMOD1_TS_DATA[6]
FE_DEMOD1_TS_DATA[7]
/TU_RESET1_TU
+3.3V_DEMOD_TU
I2C_SCL4_TU
D_Demod_Core
LNB_TX
I2C_SDA4_TU
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
TU_GND_B
TU_GND_A
C6401
1000pF
630V
TU_TW/CO/BR
R6402
R6401
0
0
TU_EU/AJ/JA
TU_EU/AJ/JA
Global flag
C6402
1000pF
630V
TU_TW/CO/BR/KR/US
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.
TU_GND_A
A1
A1
B1
B1
47
SHIELD
TU_GND_B
TUNER
2013.07.16
564
Global F/E Option Name
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
1. TU
2. Tuner Name = TDS’S’,TDS’Q’...
3. Country Name = T,T2,S2,KR,US,BR ...
Example of Option name
TU_Q_T2 = apply TDSQ type tuner and T2 country
TU_M/W = apply TDSM&TDSW Type Tuner
13’ Tuner Type for Global
TDS’S’-G501D : T/C Half NIM Horizontal Type
TDS’Q’-G501D : T/C/S2 Combo Horizontal type
TDS’Q’-G601D : T2/C/S2 Combo Horizontal Type
TDS’Q’-G651D : T2/C/S2 Combo Vertical Type
TDS’Q’-G705D : Singapore DVB-T2 (V1.3.1)
TDS’M’-C601D : China NIM with Isolater Type
TDS’W’-J551F : Japan Dual NIM
TDS’W’-B651F : Brazil 2Tuner
TDS’W’-A651F : Taiwan 2Tuner
TDS’W’-K651F : Colombia DVB-T2 2Tuner
3. Signal Width >= 12mils
Signal to Signal Width = 12mils
RF_SWITCH_CTL
Ground Width >= 24mils
IF_AGC
TU_HK
R6513 0
I2C_SCL4
I2C_SDA4
+3.3V_NORMAL
C6508
0.1uF
16V
TUNER_SIF
TU_NO_DEMOD_CORE
IC6515
AZ1117BH-1.2TRE1
OUTIN
GND/ADJ
+3.3V_TUNER
TU_HK
R6516
200
E
TU_HK
B
Q6502
MMBT3906(NXP)
C
1.2V_MHL
TU_NO_DEMOD_CORE
1608 perallel
because of derating
TU_HK
R6517
200
TU_NO_DEMOD_CORE
R6515
1
C6514
10uF
10V
TU_CVBS
C6519
0.1uF
16V
TU_NO_DEMOD_CORE
+3.3V_TUNER
+5V_NORMAL
C6515
1uF
+3.3V_NORMAL
BLM18PG121SN1D
C6526
0.1uF
16V
TU_DEMOD_CORE
IC6500
TU_DEMOD_CORE
R6518
10K
AP2132MP-2.5TRG1
1
PG
2
EN
3
VIN
2A
4
VCTRL
EAN61387601
TU_DEMOD_CORE
C6516
0.1uF
TU_DEMOD_CORE
Vout=0.6*(1+R1/R2)
DELETE 1.8V POWER
L6502
9
THERMAL
mA(MAX)
8
7
6
5
[EP]
C6529
22uF
10V
85C
GND
ADJ
VOUT
NC
/TU_RESET2_TU
+3.3V_TUNER
C6530
0.1uF
16V
R6519
11K
1%
R6520
10K
1%
T2 : Max 1.7A
else : Max 0.7A
TU_1.2V
R6521
20K
R2
1%
TU_1.2V
R1
TU_1.2V
TU_DEMOD_CORE
Demod_Core
R6521-*1
18K
14K
R6519-*1
2K
R6520-*1
C6518
10uF
16V
/TU_RESET2
FE_DEMOD1_TS_ERROR
TU_1.1V
TU_1.1V
TU_1.1V
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.
TUNER_CIRCUIT
2013.07.16
565
LVDS
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
LVDS_51PIN
P7100
FI-RE51S-HF-J-R1500
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
GND
[51Pin LVDS OUTPUT Connector]
NC
NC
NC
NC
NC
AUO_65_MIRROR
LVDS_SEL
NC
NC
L/DIM_ENABLE
GND
RA0N
RA0P
RA1N
RA1P
RA2N
RA2P
GND
RACLKN
RACLKP
GND
RA3N
RA3P
RA4N
RA4P
GND
BIT_SEL
RB0N
RB0P
RB1N
RB1P
RB2N
RB2P
GND
RBCLKN
RBCLKP
GND
RB3N
RB3P
RB4N
RB4P
GND
GND
GND
GND
GND
NC
VLCD
VLCD
VLCD
VLCD
R7100 33
LGD_2D/3D_CTRL
R7105 33
CP_BOX
R7106 33
CP_BOX
R710733
LGD_T-Con_Scanning
R7110
33
AUO_L/D_EN
R7108
OPC_EN
33
R71090
OPT
2D/3D_CTL
PWM_DIM1
PANEL_VCC
I2C_SDA1
I2C_SCL1
OPC_EN
TXA0N
TXA0P
TXA1N
TXA1P
TXA2N
TXA2P
TXACLKN
TXACLKP
TXA3N
TXA3P
TXA4N
TXA4P
TXB0N
TXB0P
TXB1N
TXB1P
TXB2N
TXB2P
TXBCLKN
TXBCLKP
TXB3N
TXB3P
TXB4N
TXB4P
L7100
BLM18SG121TN1D
LVDS_51PIN
C7100
C7101
10uF
1000pF
16V
50V
OPT
OPT
LVDS_SEL
+3.3V_NORMAL
R7101
3.3K
LVDS_SEL_HIGH
R7102
10K
LVDS_SEL_LOW
BIT_SEL
C7102
0.1uF
50V
OPT
[41Pin LVDS OUTPUT Connector]
LVDS_41PIN
P7101
FI-RE41S-HF-J-R1500
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
R7103
10K
BIT_SEL_LOW
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
GND
NC
NC
NC
NC
NC
NC
NC
NC
GND
RC0N
RC0P
RC1N
RC1P
RC2N
RC2P
GND
RCCLKN
RCCLKP
GND
RC3N
RC3P
RC4N
RC4P
GND
GND
RD0N
RD0P
RD1N
RD1P
RD2N
RD2P
GND
RDCLKN
RDCLKP
GND
RD3N
RD3P
RD4N
RD4P
GND
GND
R7104 33
AUO_2D/3D_CTRL
2D/3D_CTL
TXC0N
TXC0P
TXC1N
TXC1P
TXC2N
TXC2P
TXCCLKN
TXCCLKP
TXC3N
TXC3P
TXC4N
TXC4P
TXD0N
TXD0P
TXD1N
TXD1P
TXD2N
TXD2P
TXDCLKN
TXDCLKP
TXD3N
TXD3P
TXD4N
TXD4P
LVDS_HD
[30Pin HD 60Hz]
HD
P7102
10031HR-30
T-CON
Pin
Assign
GND
NC
NC
NC
GND
RD+
RD-
GND
RCL+
RCLK-
GND
RC+
RC-
GND
RB+
RB-
GND
RA+
RA-
GND
NC
LVDS SEL
GND
GND
GND
GND
VLCD
VLCD
VLCD
VLCD
1
30
2
29
3
28
4
27
5
26
6
25
7
24
8
23
9
22
10
21
11
20
12
19
13
18
14
17
15
16
16
15
17
14
18
13
19
12
20
11
21
10
22
9
23
8
24
7
25
6
26
5
27
4
28
3
29
2
30
1
31
Pin Assign is same as
LN570B LVDS Cable
(EAD62296501)
TXA0N
TXA0P
TXA1N
TXA1P
TXA2N
TXA2P
TXACLKN
TXACLKP
TXA3N
TXA3P
LVDS_SEL
+3.3V_NORMAL
OPT
R1109
3.3K
OPT
R1110
10K
PANEL_VCC
120OHM
HD
L1101
UBW2012-121F
HD
C1101
0.1uF
16V
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.
LVDS_HIGH_MID
2013.07.16
571
Contents of LCD TV Standard Repair Process
)
)
Vertical/Horizontal bar, residual image, light spot
,
,g,p
First of all, Ch
SVC Bulletin in GCSC Syst
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
No.Error symptom (High category
1No video/Normal audio 1
2 No video/No audio2
3
4Color error4
5
6
7Off when on
8
9Wrecked audio/discontinuation/noise9
A. Video error
B. Power error
C. Audio error
Picture broken/ Freezing
external device color error
No power6
No audio/Normal video 8
Error symptom (Mid category
,
off while viewing, power auto on/off7
PageRemarks
3
5
10
D. Function error
11External device recognition error 11
12E. NoiseCircuit noise, mechanical noise12
13F. Exterior errorExterior defect13
14APPENDIXPower Off History
eck whether there is
Remote control & Local switch checking
1/ 97
10
em for these model.
Contents of LCD TV Standard Repair Process Detail Technical Manual
9
LCD TV
A8
(
residual image, light spot
()
A11
A11
AUO
17
Exchange T
Con Board (2)
A-2/5
g
)
A
g()
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
No.Error symptomContentPageRemarks
1
Check LCD back light with naked eyeA1
2LED driver B+ 24V measuring methodA2
A. Video error_ No video/Normal audio
3Check White Balance valueA3
4Power Board voltage measuring methodA5
6
TUNER input signal strength checking methodA6
A. Video error_ No video/Video lag/stop
7LCD-TV Version checking methodA7
connection diagram
10Tuner Checking PartA9
A. Video error_Color error
A10
11Check Link Cable (LVDS) reconnection condition
A11
12Adjustment Test pattern - ADJ KeyA12
13
14Check Link Cable
A. Video error_Vertical/Horizontal bar,
LCD TV connection diagram A8
A10
LVDS) reconnection condition
A10 : 32/37/42/47/55
A11 : 32 AUO
A10 : 32/37/42/47/55
: 32
15Adjustment Test pattern - ADJ KeyA12
16Exchange T-Con Board (1)A-1/5
<Appendix>
18Exchange LED driver Board (PSU) A-3/5
Defected Type caused by T-Con/ Inverter/
Module
19Exchan
20Exchange Module itself (2)A-5/5
-
e Module itself (1
2/ 97
55” : driver board
Other : PSU
-4/5
Standard Repair Process
dat
Error
A.Videoerror
(
)
2014. 1 .2
A
(,,p,,
)
j
Repair Power
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
Established
LCD TV
First of all, Check whether all of cables between board is inserted properly or not.
Main B/D↔ Power B/D, LVDS Cable,Speaker Cable,IR B/D Cable,ETC…
symptom
No video/ Normal audio
Revised date
☞A4☞A1
e
1/13
No video
Normal audio
※Precaution
Always check & record S/W Version and White
Balance value before replacing the Main Board
Normal
audio
Move to No
video/No audio
☞A7 & A3
Y
N
Check Back Light
On with naked eye
☞A2
Check Power Board 24V output
On
Normal
voltage
Board or parts
Replace Main Board
Y
N
Y
N
Check Power Board
12V,3.5V etc.
Replace Inverter
or module
Normal
voltage
Repair Power Board
or parts
End
Re-enter White Balance value
Y
N
Replace T-con Board
or module
nd Adjust VCOM
☞A28
3/ 97
Standard Repair Process
A.Videoerror
dat
Error
2014. 1 .2
C
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
LCD TV
symptom
No Video/
No audio
☞A4
heck various voltages
of Power Board
( 3.5V,12V or 24V…)
No video/ No audio
Normal
voltage?
Y
Check and
replace
MAIN B/D
Established
e
Revised date
2/13
N
Replace Power
Board and repair
parts
End
4/ 97
Standard Repair Process
dat
Error
2014. 1 .2
A.Videoerror
A6
N
Y
Y
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
LCD TV
symptom
Picture broken/ Freezing
Established
e
Revised date
3/13
☞
Check RF Signal level
Normal
Signal?
Check RF Cable
Connection
1. Reconnection
2. Install Booster
Normal
Picture?
Close
Y
N
. By using Digital signal level meter
. By using Diagnostics menu on OSD
( Menu → Settings → Support → Signal Test )
- Signal strength (Normal : over 50%)
- Signal Quality (Normal: over 50%)
Check whether other equipments have problem or not.
(By connecting RF Cable at other equipment)
→ DVD Player ,Set-Top-Box, Different maker TV etc`
☞ A7
Normal
Picture?
N
Contact with signal distributor
or broadcaster (Cable or Air)
Y
Check
S/W Version
SVC
Bulletin?
S/W Upgrade
Normal
Picture?
Y
N
Check
Tuner soldering
N
Replace
Main B/D
Close
5/ 97
A
r
Standard Repair Process
dat
Error
2014. 1 .2
☞
A8
contact
N
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
LCD TV
Check color by input
-External Input
-COMPONENT
-AV
-HDMI/DVI
☞A12
Check Test pattern
symptom
Color
error?
Check error color
input mode
Y
N
External Input/
Component/ AV
. Video erro
Color error
☞ A10/ A11
※ Check and
replace Link
Cable
(LVDS) and
condition
error
Color
error?
N
Check
external
device and
cable
Y
Replace Main B/D
Established
e
Revised date
External device
/Cable
normal
Color
error?
End
Y
4/13
Y
Replace module
N
Replace Main B/D
HDMI/DVI
error
Check external
device and
cable
6/ 97
Request repair
for external
device/cable
N
External device
/Cable
normal
Y
Replace Main B/D
A
r
Standard Repair Process
dat
Error
2014. 1 .2
Module
HDMI/DVI
error
andcable
Repl
Screen
HDMI/
B
End
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
. Video erro
LCD TV
symptom
Vertical / Horizontal bar, residual image,
light spot, external device color error
Vertical/Horizontal bar, residual image, light spot
☞A8
Check color condition by input
-External Input
-Component
-AV
-
☞A12
Check Test pattern
Screen
normal?
N
Replace
module
Check external
Y
device
connection
condition
Request repair
for external
device
External device screen error-Color error
Check screen
condition by input
Check S/W Version
Check
version
S/W Upgrade
N
Y
-External Input
-Component
-AV
-HDMI/DVI
Normal?
N
Component/AV
☞ A10/ A11
Check and
Y
replace Link
Cable
External
Input
error
Established
e
Revised date
☞ A28
Screen
normal?
N
Replace Main B/D
(adjust VCOM)
For LGD panel
Y
End
Replace Main B/D
For other panel
Connect other external device
(Check normal operation of
External Input, Component, AV
and HDMI/DVI by connecting Jig,
pattern Generator ,Set-top Box
etc.
N
normal?
Y
Request repair for
external device
5/13
Replace
N
Screen
normal?
Y
End
ace
Main B/D
Normal
screen?
Y
N
DVI
Connect other external device
and cable
(Check normal operation of
External Input, Component, AV
and HDMI/DVI by connecting
Jig, pattern Generator ,Set-top
ox etc.
Y
Screen
normal?
N
Replace
Main B/D
7/ 97
r
Standard Repair Process
dat
Error
2014. 1 .2
☞
A17
☞
A19
Check ST
5V
Normal
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
LCD TV
Check
Power LED
. Stand-By: Red or Logo Light ON
. Operating : off
Check Power cord
was inserted properly
symptom
Power LED
On?
N
Normal?
Y
Close
N
Y
※
☞A18
B. Power erro
No power
DC Power on
by pressing Power Key
On Remote control
-BY 3.
Y
Y
voltage?
N
Established
e
Revised date
Normal
operation?
N
Check Power
On ‘”High”
Y
Replace Main B/D
☞A4
Measure voltage of each output of Power B/D
Normal
voltage?
Replace Power B/D
Y
N
Replace Main B/D
OK?
Y
6/13
Replace
Power
B/D
Replace Power
B/D
8/ 97
r
Standard Repair Process
dat
Error
2014. 1 .2
p
p
g
1
g
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
LCD TV
Check outlet
Check A/C cord
Check for all 3- phase
ower out
symptom
Error?
Y
Fix A/C cord & Outlet
and check each 3
phase out
B. Power erro
Off when on, off while viewing, power auto on/off
☞A22
N
Check Power Off
Mode
☞A19
(If Power Off mode is
not displayed)
Check Power B/D
voltage
※ Caution
Check and fix exterior
of Power B/D Part
Established
Revised date
CPU
Abnormal
Abnormal
Normal
e?
volta
N
Replace Power B/D
e
Replace Main B/D
Y
Replace Main B/D
Normal?
Replace Power B/D
Y
N
7/13
End
* Please refer to the all cases which can be displayed on power off mode.
Click the below Hyper_link
9/ 97
Standard Repair Process
C.Audioerror
dat
Error
2014. 1 .2
Screen normal
Speaker?
voltage
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
LCD TV
symptom
☞A24☞A25
No audio/ Normal video
Established
e
Revised date
8/13
No audio
Check user
menu >
Sound Out
TV
Change the TV Speaker
Check Speaker
disconnection
Y
N
Check audio B+ 24V
of Power Board
Replace Power Board and repair parts
Y
Replace Speaker / Cable
Normal
N
Replace MAIN Board
Y
N
EndDisconnection
10 / 97
Standard Repair Process
C.Audioerror
dat
Error
2014.1.2
Signal
W
/
R
Repl
B/D
End
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
LCD TV
→ abnormal audio/discontinuation/noise is same after “Check input signal” compared to No audio
Check input
signal
-RF
-External Input
signal
symptom
normal?
N
Y
(When RF signal is not
received)
equest repair to external
cable/ANT provider
(In case of External
Input signal error)
Check and fix
external device
Wrecked audio/ discontinuation/noise
Wrecked audio/
Discontinuation/
Noise for
all audio
Wrecked audio/
Discontinuation/
Noise only
for D-TV
recked audio
Discontinuation/
Noise only
for Analog
Wrecked audio/
Discontinuation/
Noise only
for External Input
Established
Revised date
Check and replace
speaker and
connector
Replace Main B/D
Connect and check
other external device
e
9/13
☞A25
Check audio
B+ Voltage (24V)
Y
Normal
voltage?
N
Replace Power B/D
ace Main
N
Normal
audio?
Y
Check and fix external device
11 / 97
Standard Repair Process
dat
Error
2014.1.2
Y
N
N
p
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
LCD TV
symptom
Remote control & Local switch checking
1. Remote control(R/C) operating error
☞A27
Check R/C itself
Operation
Check R/C Operating
When turn off light
in room
If R/C operate,
Explain the customer
cause is interference
from light in room.
Normal
operating?
N
Check & Replace
Baterry of R/C
Y
Normal
operating?
Check & Repair
Cable connection
Connector solder
Close
N
D. General Function Problem
☞A27
Normal
operating?
Close
N
Check B+ 3.5V
On Main B/D
Established
e
Revised date
☞A27
Normal
Voltage?
Y
Output signal
☞A4
Check 3.5v on Power B/D
Replace Power B/D or
Replace Main B/D
(Power B/D don’t have problem)
Check IR
10/13
Replace
Main B/D
Normal
Signal?
Repair/Replace
IR B/D
Y
Replace R/C
12 / 97
r
Standard Repair Process
dat
Error
2014.1.2
input
g
C
t
Replace Main B/D
DVI,Optical
Replace Main B/D
Fix in
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
LCD TV
Check
signal
D. Function erro
symptom
Y
Signal
input?
N
Check and fix
external device/cable
External device recognition error
Check technical
information
- Fix information
information?
-S/W Version
accordance
with technical
Technical
Y
information
External Input and
N
Recognition error
Recognition error
omponen
HDMI/
Established
e
Revised date
11/13
13 / 97
Standard Repair Process
dat
Error
2014.1.2
of noise
noise type
noise
noise
(For models without any fix information, provide
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
LCD TV
Identify
E. Noise
symptom
Circuit
Mechanical
noise
※ Mechanical noise is a natural
phenomenon, and apply the 1st level
description. When the customer does not
agree, apply the process by stage.
※ Describe the basis of the description in
“Part related to nose” in the Owner’s Manual.
Check location
Check location of
Circuit noise, mechanical noise
OR
Replace PSU(with LED driver)
Replace LED driver
※ When the nose is severe, replace the module
(For models with fix information, upgrade the S/W or
provide the description)
OR
※ If there is a “Tak Tak” noise from the cabinet,
refer to the KMS fix information and then proceed
as shown in the solution manual
the description)
Established
e
Revised date
12/13
14 / 97
Standard Repair Process
F. Exterior defect
dat
Error
2014.1.2
Cabinet
damage
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
LCD TV
symptom
Exterior defect
Established
e
Revised date
13/13
Zoom part with
exterior damage
Module
damage
damage
Remote
controller
Stand
dent
Replace module
Replace cabinet
Replace remote controller
Replace stand
Adjust VCOM
☞A28
15 / 97
Contents of LCD TV Standard Repair Process Detail Technical Manual
ppg
22
Check power input Voltage & ST
-
BY 3.5V
A18
25
viewing
there is no audio
controller, key error
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
Continued from previous page
No.Error symptomContentPageRemarks
21Check front display LEDA17
23Checking method when power is ONA19
24POWER BOARD voltage measuring methodA5
26
27
28
29
30
31
B. Power error_No power
B. Power error_Off when on, off while
viewing
B. Power error_Off when on, off while
C. Audio error_No audio/Normal video
C. Audio error_Wrecked
audio/discontinuation
D. Function error_ No response in remote
POWER OFF MODE checking methodA22
POWER BOARD PIN voltage checking methodA19
Checking method in menu when there is no
audio
Voltage and speaker checking method when
Voltage and speaker checking method in case of
audio error
Remote controller operation checking methodA27
A24
A25
A25
32D. VCOM AdjustmentSequence of the Vcom adjustmentA28
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Standard Repair Process Detail Technical Manual
A. Video error_No video/Normal audio
t
2014.1.2
3. AfterrecordingtheR, G, B(GAIN, Cut)valueofColorTemp(Cool/Medium/Warm), re
-
3. After recording the R, G, B (GAIN, Cut) value of Color Tem p (Cool/Medium/Warm), re
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
LCD TV
<ALL MODELS>
Error
symp
Content
om
Check White Balance value
Established
date
Revised
date
A3
Entry method
Entry method
1. Press the ADJ button on the remote controller for adjustment.
1. Press the ADJ button on the remote controller for adjustment.
2. Enter into White Balance of item 6.
2. Enter into White Balance of item 7.
enter the value after replacing the MAIN BOARD.
enter the value after replacing the MAIN BOARD.
17 / 97
-
Standard Repair Process Detail Technical Manual
A. Video error_No video/ Audio
t
2014.1.2
9
24V
10
24V
17
GND
18
GND
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
① Check the contact condition of or 24V connector of Main Board
② Measure the 24V input voltage supplied from Power Board
(If there is no input voltage, remove and check the connector)
onnect the tester
to the speaker terminal and if you hear the
and output terminal, the speaker is normal.
29 / 97
The Wafer,18Pin and 24Pin, is used by operating LocalDimming or not
LocalDimming
-
n wafer is applied operating L/D at power and main
- 18Pin wafer is applied not operating L/D at power and main B/D
sound when you touch the
Standard Repair Process Detail Technical Manual
k
r
t
2014. 1 .6
P4102
9
EYE_SCL
g
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
LCD TV
<ALL MODELS>
Error
symp
Content
D. Function error_ No response in remote controller,
om
ey erro
Remote controller operation checking method
Established
date
Revised
date
③
④
A27
1
2
3
4
5
6
7IR
8GND
10EYE_SDA
GND
KEY1
KEY2
+3.5V_ST
GND
LOGO/LED_R
①
Checking order
1, 2. Check IR cable condition between IR & Main board.
3. Check the st-by 3.5V on the terminal 6.
4. When checking the Pre-Amp when the power is in ON condition, it is normal when the Analog
Tester needle moves slowly, and defective when it does not move at all.
②
30 / 97
Standard Repair Process Detail Technical Manual
D. VCOM Adjustment
t
2014.1.2
■
LCD
■
ServiceRemotecontroller
■
A
COM
Which i
y
y
j
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
LCD TV
Error
symp
Content
om
Sequence of the Vcom adjustment
Established
date
Revised
date
1. Case
module change
■ T-Con board change
2. Equipment
3. Adjust sequence
■ Press the ‘adj’ key
■ select V-COM
s pushing the right or the left button on the remote controller, And find the V-
minimized the Flicker.
(If there is no flicker at default value, Press the exit key and finish the VCOM adjustment.)
■ Push the OK key to store the value. Then the message “Saving OK” is pop.
■ Press the exit ke
to finish V-COM adjustment.
value
A28
s no or
31 / 97
Appendix : Power OFF History
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
StatusPower off ListExplanation
POWER_OFF_BY_REMOTE KEY POWER_OFF_BY_REMOTE CONTROL
POWER_OFF_BY_OFF_TIMERPOWER_OFF_BY_OFF TIMER
POWER_OFF_BY_SLEEP_TIMERPOWER_OFF_BY_SLEEP TIMER
POWER_OFF_BY_TS_ENDPOWER_OFF_BY_REMOTE or LOCAL KEY While recording