LG | 37LT760H-ZA | User's Manual | LG 37LT760H-ZA User's Manual

Internal Use Only
North/Latin America
Europe/Africa
Asia/Oceania
http://aic.lgservice.com
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LED LCD TV
SERVICE MANUAL
CHASSIS : LD2FF
MODEL : 37LT760H
37LT760H-ZA
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
P/NO : MFL67659803 (1210-REV00)
Printed in Korea
CONTENTS
CONTENTS . ............................................................................................. 2
SAFETY PRECAUTIONS ......................................................................... 3
SERVICING PRECAUTIONS..................................................................... 4
SPECIFICATION........................................................................................ 6
ADJUSTMENT INSTRUCTION................................................................. 9
TROUBLESHOOTING GUIDE.................................................................. 17
BLOCK DIAGRAM.................................................................................... 26
EXPLODED VIEW .................................................................................. 27
SCHEMATIC CIRCUIT DIAGRAM ..............................................................
Copyright ©
LG Electronics. Inc. All rights reserved.
Only for training and service purposes
-2-
LGE Internal Use Only
SAFETY PRECAUTIONS
IMPORTANT SAFETY NOTICE
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
Leakage Current Hot Check (See below Figure)
Plug the AC cord directly into the AC outlet.
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 the circuitry 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.
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 exposed metallic part. 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.
Leakage Current Hot Check circuit
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.
Copyright ©
LG Electronics. Inc. All rights reserved.
Only for training and service purposes
-3-
LGE Internal Use Only
SERVICING PRECAUTIONS
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 conflict 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 module 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 specified 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 flammable mixture.
Unless specified 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 fixtures specified in this
service manual.
CAUTION: Do not connect the test fixture 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 field-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.
Copyright ©
LG Electronics. Inc. All rights reserved.
Only for training and service purposes
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 classified as “anti-static” can generate
electrical charges sufficient to damage ES devices.
5. Do not use freon-propelled chemicals. These can generate
electrical charges sufficient 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 floor can generate static electricity sufficient 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, suctiontype 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 flows 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
splashed solder with a small wire-bristle brush.
-4-
LGE Internal Use Only
IC Remove/Replacement
Some chassis circuit boards have slotted holes (oblong) through
which the IC leads are inserted and then bent flat 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).
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).
"Small-Signal" Discrete Transistor
Removal/Replacement
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.
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.
Copyright ©
LG Electronics. Inc. All rights reserved.
Only for training and service purposes
-5-
LGE Internal Use Only
SPECIFICATION
NOTE : Specifications and others are subject to change without notice for improvement.
1. Application range
This specification is applied to the LCD TV used LD23E
chassis.
3. Test method
2. Requirement for Test
Each part is tested as below without special appointment.
1) Performance: LGE TV test method followed
2) Demanded other specification
- Safety : CE, IEC specification
- EMC : CE, IEC
- Wireless : Wireless HD Specification (Option)
1) Temperature: 25 °C ± 5 °C(77 °F ± 9 °F), CST: 40 °C ± 5 °C
2) Relative Humidity: 65 % ± 10 %
3) Power Voltage
: Standard input voltage (AC 100-240 V~, 50/60 Hz)
* Standard Voltage of each products is marked by models.
4) Specification and performance of each parts are followed
each drawing and specification by part number in
accordance with BOM.
5) The receiver must be operated for about 20 minutes prior to
the adjustment.
4. Model General Specification
No.
1
Item
Market
Specification
Remarks
DTV & Analog (Total 33 countries)
DTV (MPEG2/4, DVB-T) : 33 countries
(Albania/Austria/Belarus/Belgium/Bosnia/Bulgaria/Croatia/
Czech/Estonia/France/Germany/Greece/Hungary/Ireland/
Italy/Kazakhstan/Latvia/Lithuania/Luxembourg/Morocco/
Netherlands/Poland/Portugal/Romania/Russia/Serbia/
Slovakia/Slovenia/Spain/Switzerland/Turkey/UK/Ukraine)
EU(PAL Market-33Countries)
DTV (MPEG2/4, DVB-C) : 33 countries
(Albania/Austria/Belarus/Belgium/Bosnia/Bulgaria/Croatia/
Czech/Estonia/France/Germany/Greece/Hungary/Ireland/
Italy/Kazakhstan/Latvia/Lithuania/Luxembourg/Morocco/
Netherlands/Poland/Portugal/Romania/Russia/Serbia/
Slovakia/Slovenia/Spain/Switzerland/Turkey/UK/Ukraine)
2
3
Broadcasting system
Receiving system
1) PAL-BG
2) PAL-DK
3) PAL-I/I’
4) SECAM L/L’, DK, BG, I
Analogue
VHF : E2 to E12, UHF : E21 to E69,
CATV : S1 to S20, HYPER : S21 to S47
5) DVB-T
6) DVB-C
Digital
VHF
UHF
► DVB-T
- Guard Interval(Bitrate_Mbit/s)
1/4, 1/8, 1/16, 1/32
- Modulation : Code Rate
QPSK : 1/2, 2/3, 3/4, 5/6, 7/8
16-QAM : 1/2, 2/3, 3/4, 5/6, 7/8
64-QAM : 1/2, 2/3, 3/4, 5/6, 7/8
Analog : Upper Heterodyne
Digital : COFDM, QAM
► DVB-C
- Symbolrate :
4.0Msymbols/s to 7.2Msymbols/s
- Modulation :
16QAM, 64-QAM, 128-QAM and 256-QAM
Copyright ©
LG Electronics. Inc. All rights reserved.
Only for training and service purposes
-6-
LGE Internal Use Only
No.
Item
Specification
4
Scart Input (1EA)
5
RS-232C
6
RGB Input (1EA)
7
HDMI Input (3EA)
8
9
Audio Input (1EA)
SPDIF out (1EA)
10
USB (2EA)
11
12
13
Ethernet Connect(2EA)
CI Slot(1EA)
Clock LED
Ext. Speaker out(1EA)
Ext. Volume control(1EA)
14
Remarks
Scart jack is Full scart and support
ATV/DTV-Out
(not support MNT-Out)
PAL, SECAM
SVC, Control, Power outlet
(Selectable 12V/1A or 5V/2A)
RGB-PC
HDMI1-DTV
HDMI2-DTV
HDMI3-DTV
RGB/DVI Audio
SPDIF out
EMF, DivX HD,
For SVC (download)
Ethernet Connect
CI
Clock LED
Ext. Speaker out
Ext. volume control
Analog (D-SUB 15PIN)
HDMI1 : ARC Support(HDMI Version 1.4)
Support HDCP
L/R Input
JPEG, MP3, DivX HD
WOL Support
EU PPV CH. Support
Clock Display
Stereo 1W / 8Ω, Variable
5. RGB input (PC)
No.
Resolution
H-freq(kHz)
V-freq.(Hz)
Pixel clock(MHz)
Proposed
1
720*400
31.468
70.08
28.321
2
640*480
31.469
59.94
25.17
VESA
3
800*600
37.879
60.31
40.00
VESA
4
1024*768
48.363
60.00
65.00
VESA(XGA)
5
1360*768
47.72
59.8
84.75
WXGA
6
1920*1080
66.587
59.93
138.625
WUXGA
Copyright ©
LG Electronics. Inc. All rights reserved.
Only for training and service purposes
Remark
For only DOS mode
-7-
Input 848*480 60Hz, 852*480 60Hz
→ 640*480 60Hz Display
FHD model
LGE Internal Use Only
6. HDMI Input
6.1. DTV mode
No.
Resolution
H-freq.(kHz)
V-freq.(Hz)
Pixel clock(MHz)
Proposed
Proposed
1.
720*480
31.469 / 31.5
59.94 / 60
27.00/27.03
SDTV 480P
2.
720*576
31.25
50
54
SDTV 576P
3.
1280*720
37.500
50
74.25
HDTV 720P
4.
1280*720
44.96 / 45
59.94 / 60
74.17/74.25
HDTV 720P
5.
1920*1080
33.72 / 33.75
59.94 / 60
74.17/74.25
HDTV 1080I
6.
1920*1080
28.125
50.00
74.25
HDTV 1080I
7.
1920*1080
26.97 / 27
231.97 / 24
74.17/74.25
HDTV 1080P
FHD model
8.
1920*1080
33.716 / 33.75
29.976 / 30.00
74.25
HDTV 1080P
FHD model
9.
1920*1080
56.250
50
148.5
HDTV 1080P
FHD model
10.
1920*1080
67.43 / 67.5
59.94 / 60
148.35/148.50
HDTV 1080P
FHD model
Proposed
6.2. PC mode
No.
Resolution
H-freq.(kHz)
V-freq.(Hz)
Pixel clock(MHz)
1.
720*400
31.468
70.08
28.321
Proposed
2.
640*480
31.469
59.94
25.17
VESA
HDCP
3.
800*600
37.879
60.31
40.00
VESA
HDCP
4.
1024*768
48.363
60.00
65.00
VESA(XGA)
HDCP
HDCP
5.
1360*768
47.72
59.8
84.75
WXGA
HDCP
6.
1280*1024
63.595
60.0
108.875
SXGA
HDCP / FHD model
7.
1920*1080
67.5
60.00
138.625
WUXGA
HDCP / FHD model
Copyright ©
LG Electronics. Inc. All rights reserved.
Only for training and service purposes
-8-
LGE Internal Use Only
ADJUSTMENT INSTRUCTION
1. Application Range
3.1.3. Adjustment method
2. Designation
3.2. MAC address D/L, CI+ D/L
(1) Adjustment method
- Don’t need to adjust ADC because there is data in OTP
and adjusted initially.
This spec. sheet applies to LD2FF Chassis applied LCD TV
all models manufactured in TV factory.
(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 °C ± 5 °C of temperature and 65 % ± 10 % of relative
humidity if there is no specific designation.
(4) The input voltage of the receiver must keep AC 100-240
V~, 50/60 Hz.
(5) The receiver must be operated for about 5 minutes prior to
the adjustment when module is in the circumstance of over
15.
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.
3.2.1. Equipment & Condition
1) Play file: keydownload.exe
3.2.2. Communication Port connection
1) Key Write: Com 1,2,3,4 and 115200 (Baudrate)
2) Barcode: Com 1,2,3,4 and 9600 (Baudrate)
3.2.3. Download process
1) Select the download items.
2) Mode check: Online Only
3) Check the test process
- DETECT -> MAC -> CI+
4) Play: START
5) Check of result: Ready, Test, OK or NG
6) Printer Out (MAC Address Label)
3.2.4. Communication Port connection
Connect: PCBA Jig → RS-232C Port== PC → RS-232C Port
[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.
3. MAIN PCBA Adjustments
3.1. ADC Calibration
3.2.5. Download
3.1.1. Overview
ADC adjustment is needed to find the optimum black level
and gain in Analog-to-Digital device and to compensate RGB
deviation.
3.1.2. Equipment & Condition
(1) USB to RS-232C Jig
(2) M SPG-925 Series Pattern Generator (MSPG-925FA,
pattern - 65)
- Resolution :1080P Comp1
1920*1080 RGB
- Pattern : Horizontal 100% Color Bar Pattern
- Pattern level : 0.7 ± 0.1 Vp-p
- Image
Play: Start
3.2.6. Inspection
- In INSTART menu, check these keys.
Copyright ©
LG Electronics. Inc. All rights reserved.
Only for training and service purposes
-9-
LGE Internal Use Only
3.3. LAN Inspection
3.5. Model name & Serial number Download
3.3.1. Equipment & Condition
3.5.1. Model name & Serial number D/L
Press "Power on" key of service remote control.
(Baud rate : 115200 bps)
▪ Connect RS232 Signal Cable to RS-232 Jack.
▪ Write Serial number by use RS-232.
▪ Must check the serial number at Instart menu.
▪ Each other connection to LAN Port of IP Hub and Jig
▪
3.5.2. Method & notice
(1) Serial number D/L is using of scan equipment.
(2) Setting of scan equipment operated by Manufacturing
Technology Group.
(3) Serial number D/L must be conformed when it is produced
in production line, because serial number D/L is mandatory
by D-book 4.0.
3.3.2. LAN inspection solution
▪ LAN Port connection with PCB
▪ Network setting at MENU Mode of TV(Instart -> menu ->
Network Setup)
▪ Setting automatic IP
▪ Setting state confirmation
→ If automatic setting is finished, you confirm IP and MAC
Address.
* Manual Download (Model Name and Serial Number)
If the TV set is downloaded by OTA or service man, sometimes
model name or serial number is initialized.(Not always)
It is impossible to download by bar code scan, so It need
Manual download.
1) Press the "Instart" key of Adjustment remote control.
2) Go to the menu "7.Model Number D/L" like below photo.
3) Input the Factory model name(ex 42LT760H-ZA) or Serial
number like photo.
3.4. LAN PORT INSPECTION(PING TEST)
3.4.1. Equipment setting
(1) Play the LAN Port Test PROGRAM.
(2) Input IP set up for an inspection to Test Program.
*IP Number : 12.12.2.2
Connect SET → LAN port == PC → LAN Port
SET
PC
4) Check the model name Instart menu. → Factory name
displayed. (ex 42LT760H-ZA)
5) C heck the Diagnostics.(DTV country only) → Buyer
model displayed. (ex 42LT760H-ZA)
3.4.2. LAN PORT inspection(PING TEST)
(1) Play the LAN Port Test Program.
(2) Connect each other LAN Port Jack.
(3) Play Test (F9) button and confirm OK Message.
(4) Remove LAN cable.
3.6. CI+ Key checking method
- Check the Section 3.2
Check whether the key was downloaded or not at ‘In Start’
menu. (Refer to below).
=> Check the Download to CI+ Key value in LGset.
Copyright ©
LG Electronics. Inc. All rights reserved.
Only for training and service purposes
- 10 -
LGE Internal Use Only
4. Manual Adjustment
3.6.1. Check the method of CI+ Key value
(1) Check the method on Instart menu
(2) Check the method of RS232C Command
1) Into the main ass’y mode(RS232: aa 00 00)
CMD 1
CMD 2
A
A
* ADC adjustment is not needed because of OTP(Auto ADC
adjustment)
Data 0
0
0
2) Check the key download for transmitted command
(RS232: ci 00 10)
CMD 1
CMD 2
C
I
4.1. E
DID(The Extended Display Identification
Data)/DDC(Display Data Channel) download
4.1.1. Overview
It is a VESA regulation. A PC or a MNT will display an optimal
resolution through information sharing without any necessity
of user input. It is a realization of "Plug and Play".
Data 0
1
0
4.1.2. Equipment
- Since embedded EDID data is used, EDID download JIG,
HDMI cable and D-sub cable are not need.
- Adjustment remote control
3) Result value
- Normally status for download : OKx
- Abnormally status for download : NGx
3.6.2. Check the method of CI+ key value(RS232)
4.1.3. Download method
(1) Press "ADJ" key on the Adjustment remote control then
select "12.EDID D/L", By pressing "Enter" key, enter EDID
D/L menu.
(2) S elect "Start" button by pressing "Enter" key, HDMI1/
HDMI2/ HDMI3/ HDMI4/ RGB are writing and display OK
or NG.
1) Into the main ass’y mode(RS232: aa 00 00)
CMD 1
CMD 2
A
A
Data 0
0
0
2) Check the mothed of CI+ key by command
(RS232: ci 00 20)
CMD 1
CMD 2
C
I
Data 0
2
For Analog
For HDMI EDID
D-sub to D-sub
DVI-D to HDMI or HDMI to HDMI
0
3) Result value
i 01 OK 1d1852d21c1ed5dcx
CI+ Key Value
3.7. WIFI MAC ADDRESS CHECK
(1) Using RS232 Command
Transmission
H-freq(kHz)
V-freq.(Hz)
[A][I][][Set ID][][20][Cr]
[O][K][X] or [NG]
(2) Check the menu on in-start
4.1.4. EDID DATA
▪ HDMI_EDID DATA_2D
0x00 0x01 0x02 0x03 0x04 0x05 0x06 0x07 0x08 0x09 0x0A 0x0B 0x0C 0x0D 0x0E 0x0F
0x00
00
0x01
FF
ⓒ
FF
FF
FF
FF
FF
00
1E
6D
01
03
80
A0
5A
78
0A
EE
91
A3
54
4C
99
ⓐⓓ
ⓑ
26
0x02 0F
50
54
A1
08
00
31
40
45
40
61
40
71
40
81
80
0x03
01
01
01
01
01
01
02
3A
80
18
71
38
2D
40
58
2C
0x04
45
00
A0
5A
00
00
00
1E
66
21
50
B0
51
00
1B
30
0x05
40
70
36
00
A0
5A
00
00
00
1E
00
00
00
FD
00
3A
0x06 3E
1F
53
10
00
0A
20
20
20
20
20
20
01
ⓔ1
14
03
20
21
0x07
ⓓ
ⓓ
0x00
02
03
26
F1
4E
10
9F
04
13
05
0x01
22
15
01
26
15
07
50
09
57
07
0x02
02
12
ⓕ
E3
05
00
00
00
1D
80
18
71
1C
16
20
58
2C
25
00
A0
5A
00
00
00
9E
01
1D
00
80
51
D0
1A
20
0x04 6E
88
55
00
A0
5A
00
00
00
1A
02
3A
80
18
71
38
0x05 2D
40
58
2C
45
00
A0
5A
00
00
00
1E
66
21
50
B0
0x06
51
00
1B
30
40
70
36
00
A0
5A
00
00
00
1E
00
00
0x07
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
ⓔ2
0x03
ⓕ
▪ RGB_EDID
0x00 0x01 0x02 0x03 0x04 0x05 0x06 0x07 0x08 0x09 0x0A 0x0B 0x0C 0x0D 0x0E 0x0F
0x00
00
0x01
FF
FF
FF
FF
FF
00
1E
6D
01
03
68
A0
5A
78
0A
EE
91
A3
54
4C
99
ⓐ
ⓑ
26
0x02 0F
50
54
A1
08
00
31
40
45
40
61
40
71
40
81
80
0x03
01
01
01
01
01
01
02
3A
80
18
71
38
2D
40
58
2C
0x04
45
00
A0
5A
00
00
00
1E
66
21
50
B0
51
00
1B
30
0x05
40
70
36
00
A0
5A
00
00
00
1E
00
00
00
FD
00
3A
0x06 3E
1E
53
10
00
0A
20
20
20
20
20
20
00
ⓔ3
0x07
Copyright ©
LG Electronics. Inc. All rights reserved.
Only for training and service purposes
FF
ⓒ
- 11 -
ⓓ
ⓓ
LGE Internal Use Only
▪ Reference
- HDMI1 ~ HDMI3 / RGB
- In the data of EDID, bellows may be different by S/W or
Input mode.
4.2.3. Equipment connection MAP
Co lo r Analyzer
RS -232C
Probe
Co m p ut er
ⓐ Product ID
RS -232C
HEX
EDID Table
DDC Function
0001
01 00
Analog
0001
01 00
Digital
Signal Source
* If TV internal pattern is used, not needed
ⓑ Serial No: Controlled on production line.
ⓒ Month, Year: Controlled on production line:
ex) Monthly : ‘01’ → ‘01’
Year : ‘2012’ → ‘16’
ⓓ Model Name(Hex): LGTV
MODEL NAME
MODEL NAME(HEX)
LG TV
00 00 00 FC 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20 (LG TV)
RS -232C
Pat t ern Generat o r
4.2.4. Adj. Command (Protocol)
<Command Format>
START 6E
A
50
A LEN A 03
A
CMD
A
00
A
VAL
A
CS STOP
- LEN: Number of Data Byte to be sent
- CMD: Command
- VAL: FOS Data value
- CS: Checksum of sent data
- A: Acknowledge
Ex) [Send: JA_00_DD] / [Ack: A_00_okDDX]
ⓔ Checksum(LG TV): Changeable by total EDID data.
ⓔ1
ⓔ2
ⓔ3
HDMI1
43
15
X
HDMI2
43
5
X
HDMI3
43
F5
X
RGB
X
X
5C
▪ RS-232C Command used during auto-adjustment.
RS-232C COMMAND
[CMD
ID
DATA]
ⓕ Vendor Specific(HDMI)
Input
Model name(HEX)
HDMI1
67 03 0C 00 10 00 80 2D
HDMI2
67 03 0C 00 20 00 80 2D
HDMI3
67 03 0C 00 30 00 80 2D
4.2. White Balance Adjustment
4.2.1. Overview
▪ 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) Adjustment condition : normal temperature
1) Surrounding Temperature : 25 °C ± 5 °C
2) Warm-up time: About 5 Min
3) Surrounding Humidity : 20 % ~ 80 %
Explantion
wb
00
00
Begin White Balance adjustment
wb
00
10
Gain adjustment(internal white pattern)
wb
00
1f
Gain adjustment completed
wb
00
20
Offset adjustment(internal white pattern)
wb
00
2f
Offset adjustment completed
wb
00
ff
End White Balance adjustment
(internal pattern disappears )
Ex)
wb 00 00 -> Begin white balance auto-adj.
wb 00 10 -> Gain adj.
ja 00 ff -> Adj. data
jb 00 c0
...
...
wb 00 1f → Gain adj. completed
*(wb 00 20(Start), wb 00 2f(end)) → Off-set adj.
wb 00 ff → End white balance auto-adj.
4.2.2. Equipment
(1) Color Analyzer: CA-210 (LED Module : CH 14)
(2) Adjustment Computer(During auto adj., RS-232C protocol
is needed)
(3) Adjustment Remote control
(4) Video Signal Generator MSPG-925F 720p/216-Gray
(Model: 217, Pattern: 78)
→ Only when internal pattern is not available
▪ Color Analyzer Matrix should be calibrated using CS-1000.
Copyright ©
LG Electronics. Inc. All rights reserved.
Only for training and service purposes
- 12 -
LGE Internal Use Only
▪ Adj. Map
(2) O/S Module(AUO, CMI, Sharp,IPS…)
Adj. item
Cool
Command
(lower caseASCII)
Data Range
(Hex.)
CMD1
MIN
MAX
CMD2
Default
(Decimal)
y
Temp
∆uv
j
g
00
C0
Cool
0.271 ± 0.002
0.276 ± 0.002
13,000 K 0.0000
G Gain
j
h
00
C0
Medium
0.287 ± 0.002
0.296 ± 0.002
9,300 K
0.0000
B Gain
j
i
00
C0
Warm
0.315 ± 0.002
0.332 ± 0.002
6,500 K
0.0000
R Cut
▪ Standard color coordinate and temperature using CA-210
(CH 14) - by aging time
1) Edge LED models (applied only LGD Module) in LGERS
B Cut
R Gain
j
a
00
C0
G Gain
j
b
00
C0
B Gain
j
c
00
C0
R Gain
j
d
00
C0
G Gain
j
e
00
C0
B Gain
j
f
00
C0
R Cut
G Cut
B Cut
Warm
x
R Gain
G Cut
Medium
Coordinate
Mode
R Cut
G Cut
4.2.5. Adjustment method
(1) Auto WB calibration
1) Set TV in ADJ mode using P-ONLY key(or POWER ON
key)
2) Place optical probe on the center of the display
- It need to check probe condition of zero calibration
before adjustment.
3) Connect RS-232C Cable.
4) Select mode in ADJ Program and begin a adjustment.
5) When WB adjustment is complete with OK message,
adjustment status of pre-set mode(Cool, Medium, Warm)
6) Remove probe and RS-232C cable
▪ W/B Adj. must begin as start command “wb 00 00” , and
finish as end command “wb 00 ff”, and Adj. offset if need.
Cool
0.269
0.273
13000 K
0.0000
Medium
0.285
0.293
9300 K
0.0000
Warm
0.313
0.329
6500 K
0.0000
Aging
time
(Min)
1
2
3
4
5
6
7
8
9
0-2
3-5
6-9
10-19
20-35
36-49
50-79
80-149
Over 150
Cool
X
y
269
273
279
288
278
286
277
285
276
283
274
280
272
277
271
275
270
274
269
273
Medium
x
y
285
293
295
308
294
306
293
305
292
303
290
300
288
297
287
295
286
294
285
293
Warm
x
y
313
329
319
338
318
336
317
335
316
333
314
330
312
327
311
325
310
324
309
323
2) Edge LED models (applied only LGD Module) in LGEKR
(GUMI) (wintertime)
4.2.6. Reference (White balance Adj. coordinate and
color temperature)
▪ Luminance : 204 Gray, 80IRE
▪ Standard color coordinate and temperature using CS-1000
(over 26 inch)
Coordinate
Mode
Temp
∆uv
x
y
GP2
GP2
Aging
time
(Min)
1
2
3
4
5
6
7
8
9
281
280
279
277
275
273
271
270
269
Cool
X
y
269
273
293
297
290
296
289
295
286
293
282
291
278
289
276
287
274
286
273
285
Medium
x
y
285
293
313
321
310
320
309
319
306
317
302
315
298
313
296
311
294
310
293
309
Warm
x
y
313
329
343
338
340
336
339
335
333
333
332
330
328
327
326
325
324
324
323
323
4.3. Tool Option selection
▪ Method : Press "ADJ" key on the Adjustment remote control,
then select Tool option.
▪ Standard color coordinate and temperature using CA-210(CH 14)
(1) LGD
Mode
Coordinate
x
y
Temp
∆uv
Cool
0.269 ± 0.002
0.273 ± 0.002
13,000 K 0.0000
Medium
0.285 ± 0.002
0.293 ± 0.002
9,300 K
0.0000
Warm
0.313 ± 0.002
0.329 ± 0.002
6,500K
0.0000
Copyright ©
LG Electronics. Inc. All rights reserved.
Only for training and service purposes
- 13 -
LGE Internal Use Only
4.4. Wi-Fi Test
(2) Check the sound from the TV Set
Step 1) Turn on TV
Step 2) Select Network Connection option in Network Menu.
Instart menu -> Menu -> Network Setup
(3) Check the Sound from the Speaker or using AV & Optic
TEST program (It’s connected to MSHG-600)
Step 3) Select Start Connection button in Network Connection.
* Remark: Inspect in Power Only Mode and check SW version
in a master equipment
5. Check Commercial features
Mode info.
Step 4) If the system finds any AP like blow PIC, it is working
well.
Name
inch
LT760H-ZA 32/37/42/47
Commercial Feature
IR
Out
DC
Power
Out(12V)
Ext
SPK
Out
RJP
(HDMI
interface)
Pro:Idiom
O
O
O
O
O
5.1. External SPK Out
4.5. HDMI ARC Function Inspection
4.5.1. Test equipment
- Optic Receiver Speaker
- MSHG-600 (SW: 1220 ↑)
- HDMI Cable (for 1.4 version)
4.5.2. Test method
5.1.1. Equipment & Condition
▪ Jig (Speaker out JIG) or Oscilloscope
▪ Power only mode
(1) Insert the HDMI Cable to the HDMI ARC port from the
master equipment (HDMI1)
5.1.2. Check the speaker out
1) Connect the External Speaker : check the sound
Connect oscilloscope, you can see this waveform.
Copyright ©
LG Electronics. Inc. All rights reserved.
Only for training and service purposes
- 14 -
LGE Internal Use Only
5.2. IR Out and DC Power Outlet (12V)
(1) Equipment & Condition
▪ Jig (commercial check JIG)
▪ Special 232C Cable for commercial check Jig
▪ Power only mode
▪ PCB mode (instart menu -> menu -> Configuration Setup
-> RS232 DC Power Outlet )
(2) Check the power out & IR out - commercial check jig
1) Connect each other RS232c port on the Commercial
Check JIG
2) P ress RED Color Button on SVC Remote-control in
power only mode (or PCB mode)
3) Check the LED of jig board
- +12V LED (OK condition: Turn On)
- IR LED (OK condition: blinking)
6. AUDIO output check
6.1. Audio input condition
1) RF input: Mono, 1 KHz sine wave signal, 100 % Modulation
2) CVBS, Component: 1 KHz sine wave signal 0.5 Vrms
3) RGB PC: 1 KHz sine wave signal 0.7 Vrms
6.2. Specification
Item
Min
Typ
Max
Unit
Au dio practical max Output,
L/R (Distortion=10% max
Output)
9.0
8.5
10.0
8.9
12.0
9.9
W
Vrms
Remark
(1) Measurement condition
- EQ/AVL/Clear Voice: Off
(2) Speaker (8Ω Impedance)
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.
(3) Check the power out & IR out - mini jig
1) Connect mini jig on RS232c port
2) Press RED Color Button on SVC Remote control in
power only mode (or PCB mode)
3) Check the LED of mini jig
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.
- H i-pot Test = POWER CORD GND and LIVE &
NEUTRAL.
(4) LEAKAGE CURRENT: At 0.5 mArms
(4) Pro:Idiom Check
1) Connect the RF Cable
2) Turn to the Pro:Idiom channel (No. 333)
3) Check the video & sound
** Only displayed at “POWER ONLY” mode
Copyright ©
LG Electronics. Inc. All rights reserved.
Only for training and service purposes
- 15 -
LGE Internal Use Only
8. USB S/W Download(Service only)
4) Press the In-start Key on the ADJ remote after at least 1
min of signal reception. Then, select 7.External ADC.
And Press OK or Right Button for going to sub menu.
5) Press OK in Comp 480i menu
6) Give a 1080p Mode, Horizontal 100% Color Bar Pattern
to Comp1. (MSPG-925FA → Model: 225, Pattern: 65)
7) Press OK in Comp 1080p menu
8) Perform (6) and (7) in RGB-PC
9) If ADC Comp is successful, “ADC Component Success”
is displayed. If ADC calibration is failure, “ADC
Component Fail” is displayed.
10) I f ADC calibration is failure, after rechecking ADC
pattern or condition, retry calibration
11) I f ADC RGB calibration is successful, “ADC RGB
Success” is displayed. If ADC calibration is failure,
“ADC RGB Fail” is displayed.
12) If ADC calibration is failure, after recheck ADC pattern
or condition, retry calibration
(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 Low,
it didn't work. But your downloaded version is High, USB
data is automatically detecting.(Download Version High &
Power only mode, Set is automatically Download)
(3) Show the message "Copying files from memory".
9.2. Manual White balance Adjustment
(4) Updating is starting.
9.2.1. Adj. condition and cautionary items
(5) Updating Completed, The TV will restart automatically.
(6) If your TV is turned on, check your updated version and
Tool option. (explain the Tool option, next stage)
* 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.
(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 10 cm and perpendicular of the module surface (80
°~ 100 °)
(3) Aging time
1) After Aging Start, Keep the Power ON status during 5
Minutes.
2) In case of LCD, Back-light on should be checked using
no signal or Full-white pattern.
9.2.2. Equipment
(1) Color Analyzer: CA-210(NCG: CH 9/ WCG: CH12/ LED: CH14)
(2) Adj. Computer(During auto adj., RS-232C protocol is needed)
(3) Adjust Remote control
(4) Video Signal Generator MSPG-925F 720p/216-Gray
(Model: 217, Pattern: 78)
* After downloading, have to adjust Tool Option again.
(1) Push "IN-START" key in service remote control.
(2) Select "Tool Option 1" and push "OK" key.
(3) Punch in the number. (Each model has their number)
9.2.3. Adjustment
9. Optional adjustments
9.1. Manual ADC Calibration
9.1.1. Equipment & Condition
(1) Adjustment Remote control
(2) 801GF(802B, 802F, 802R) or MSPG925FA Pattern Generator
- Resolution: 480i Comp1(MSPG-925FA: model-209, pattern-65)
- Resolution: 1080p Comp1(MSPG-925FA: model-225, pattern-65)
- Resolution : 1080p RGB (MSPG-925FA: model-225, pattern-65)
- Pattern : Horizontal 100% Color Bar Pattern
- Pattern level: 0.7±0.1 Vp-p
9.1.2. Adjust method
(1) ADC 480i/1080p Comp1, RGB
1) Check connected condition of Comp1/RGB cable to the
equipment
2) Give a 480i Mode, Horizontal 100% Color Bar Pattern to
Comp1. (MSPG-925FA → Model: 209, Pattern: 65)
3) Change input mode as Component1 and picture mode as
“Standard”
Copyright ©
LG Electronics. Inc. All rights reserved.
Only for training and service purposes
- 16 -
(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. WhiteBalance then press the cursor to the right (Key ►).
W
hen Key(►) is pressed 216 Gray internal 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,
LGE Internal Use Only
TROUBLESHOOTING GUIDE
1. Power-Up Boot Fail Trouble Shooting guide
Check P2401 All
Voltage Level (3.5V, 12V, 24V).
N
Check power connector and
RL_ON signal OK?
N
Replace Power Board.
Y
Check Q2407 output
Voltage(12V).
N
Check Q2407 application circuit
Or replace Q2407.
Y
N
Check LVDS Cable.
Replace Cable.
Y
Check LCD Module
Control board
2. No OSD Trouble Shooting guide
Check P2401 All
Voltage Level (3.5V, 12V, 24V).
N
Check power connector and
RL_ON signal OK?
N
Replace Power Board.
Y
N
Check IC8700 RESET pin.
Check switch SW8700.
Y
Check X8701 Clock
10MHz.
N
Check X8701 application circuit
or Replace X8701.
Y
Check IC8700 IIC
Communication status.
N
Check IIC line or replace
IC8700.
Y
Check IR input state of IC8700
13pin.
N
Check IR board.
Y
Re-download NEC Micom
Copyright ©
LG Electronics. Inc. All rights reserved.
Only for training and service purposes
- 17 -
LGE Internal Use Only
3. Analog RF Video Trouble Shooting guide
Check RF cable & signal.
Y
Check TU6500 Pin8.
(Video output)
N
Replace Tuner..
Y
N
Check tuner 5V power R6513.
N
Check IC2404.
Replace IC2404.
Y
N
Check tuner 3.3V power L6502.
Replace L6502
Y
Check tuner 1.8V power IC6501
2pin : 1.8V
N
Replace IC6501.
Y
N
Check MTK LVDS output.
Copyright ©
LG Electronics. Inc. All rights reserved.
Only for training and service purposes
Replace IC105.
- 18 -
LGE Internal Use Only
4. Digital RF Trouble Shooting guide
Check RF cable & signal.
Y
N
Check tuner 5V power R6513.
N
Check tuner 5V power R6513.
Replace IC2404.
Y
Check IIC Signal
TU6500 Pin#3,4.
N
Replace TU6500.
Y
Check DIF Signal
TU6500 Pin#10,11.
N
Replace TU6500.
Y
Check X100 and application
circuit.
N
Replace X100.
Y
Replace IC105.
Copyright ©
LG Electronics. Inc. All rights reserved.
Only for training and service purposes
- 19 -
LGE Internal Use Only
5. AV Video Trouble Shooting guide
Check input signal format.
Is it supported?
Y
Check AC cable for damage
For damage or open conductor.
Y
Check JK4600
Can you see the normal
waveform?
N
Replace JK4600.
Y
Check the input of MTK(IC105).
Measure waveform at C616 because it’s more easy to check.
Can you see the normal waveform?
Y
This board has big problem because Main chip (MTK) have some troubles.
After checking thoroughly all path once again, You should decide to replace MTK or not.
Copyright ©
LG Electronics. Inc. All rights reserved.
Only for training and service purposes
- 20 -
LGE Internal Use Only
6. HDMI Video Trouble Shooting guide
Check input signal format.
Is it supported?
Y
Check AC cable for damage
For damage or open conductor
Y
Check JK3301/JK3302/JK3303
Can you see the normal waveform?
N
Replace JK3301, JK3302,
JK3303
Y
Check HDCP key NVRAM(IC100)
Power & I2C signal
N
Replace IC100.
Y
Check the input of MTK(IC105).
Measure waveform at R323, R324 because it’s more easy to check.
Can you see the normal waveform?
Y
This board has big problem because Main chip (MTK) have some troubles.
After checking thoroughly all path once again, You should decide to replace MTK or not.
Copyright ©
LG Electronics. Inc. All rights reserved.
Only for training and service purposes
- 21 -
LGE Internal Use Only
7. RGB-PC Video Trouble Shooting guide
Check input signal format.
Is it supported?
Y
Check AC cable for damage
For damage or open conductor.
Y
Check JK3603
Can you see the normal waveform?
N
Replace JK3603.
Y
Check the input of MTK(IC105).
Measure waveform at R323, R324 because it’s more easy to check.
Can you see the normal waveform?
Y
This board has big problem because Main chip (MTK) have some troubles.
After checking thoroughly all path once again, You should decide to replace MTK or not.
Copyright ©
LG Electronics. Inc. All rights reserved.
Only for training and service purposes
- 22 -
LGE Internal Use Only
8. Analog RF Audio Trouble Shooting guide
Check RF cable & signal.
Y
Check TU6500 Pin6.
(SIF output)
N
Replace Tuner.
Y
Check Audio AMP output L5402,
L5403, L5404, L5405.
N
Replace L5402, L5403, L5404,
L5405.
Y
N
Check IC5400.
Replace IC5400.
Y
Check C352.
(SIF signal to IC105)
Y
Replace IC105.
Copyright ©
LG Electronics. Inc. All rights reserved.
Only for training and service purposes
- 23 -
LGE Internal Use Only
9. AV / RGB-PC Audio in Trouble Shooting guide
Check input signal format.
Is it supported?
Y
Check AC cable for damage
For damage or open conductor
Y
Check JK4600/JK3604
Can you see the normal waveform?
N
Replace JK4600/JK3604.
Y
Check the input of MTK(IC105).
Measure waveform at C610, C611, C319, C320 because it’s more easy to check.
Can you see the normal waveform?
Y
Check Audio AMP output L5402,
L5403, L5404, L5405.
N
Replace L5402, L5403, L5404,
L5405.
Y
This board has big problem because Main chip (MTK) have some troubles.
After checking thoroughly all path once again, You should decide to replace MTK or not.
Copyright ©
LG Electronics. Inc. All rights reserved.
Only for training and service purposes
- 24 -
LGE Internal Use Only
10. HDMI Audio in Trouble Shooting guide
Check input signal format.
Is it supported?
Y
Check AC cable for damage
For damage or open conductor.
Y
Check JK3301/JK3302/JK3303.
Can you see the normal waveform?
N
Replace JK3301, JK3302,
JK3303.
Y
Check Audio AMP output L5402,
L5403, L5404, L5405.
N
Replace L5402, L5403, L5404,
L5405
Y
This board has big problem because Main chip (MTK) have some troubles.
After checking thoroughly all path once again, You should decide to replace MTK or not.
Copyright ©
LG Electronics. Inc. All rights reserved.
Only for training and service purposes
- 25 -
LGE Internal Use Only
Copyright ©
LG Electronics. Inc. All rights reserved.
Only for training and service purposes
M ICOM
To
USB2
M-Remote
Wi-Fi
R ealtek WOL
Magic WOL
- 26 -
HDMI1
HDMI2
HDMI3
SPDIF
Vol+/ -
PHY
Chip
Rear
Ext SPK
AMP
PC Audio
RGB, H/V
SYSTEM
DDR3 X 4
(2Gb)
RGB PC
SPDIF OUT
L/R OUT
Ext. Speaker
Vol Control
Audio
RGB,H/V
I2S Out
LVDS
TS
CVBS
Demod
LGE2112
(EU Commercial)
Ethernet
HDMI
S/W
USB
Video,RGB
Video
Audio
Audio
Full Scart
SC_ID, FB
ID,FB
DTV/MNT_Vout & Audio out
Video, Audio out
Ethernet
HUB IC
Ext. Speaker R/L
PC- RGB
A/V1
AUX LAN
LAN
Ext. SPK
USB to
Serial
USB1
Side
NAND
Flash
(16Gb)
37/42/47
HDCP
EEPROM
Audio
AMP
32
30P(HD)
CI Slot
R
L
Intelligent
Sensor
IR&Key
CLOCK
Display
Pro:idiom
TS_Serial_OUT
NEC
Sub Micom
51 P (FHD)
URAT
TS_Serial_IN
CLK
S/W
CI_Common
CI_Parallel_ IN
CI_Parallel_ OUT
SIF
CVBS(M)
DIF(+/-)
SYSTEM EEPROM X 1
(256Kb)
RS-232C
DVB T/C
H/N TU
RF
Rear
Speaker
BLOCK DIAGRAM
LGE Internal Use Only
EXPLODED VIEW
IMPORTANT SAFETY NOTICE
810
* Set + Stand
* Stand Base + Body
300
A2
A4
A10
501
500
510
570
200
120
900
550
910
530
540
LV1
521
401
400
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.
Copyright ©
LG Electronics. Inc. All rights reserved.
Only for training and service purposes
- 27 -
LGE Internal Use Only
EAX6430790* : LD22* / LC22*
EAX6443420* : LT22* / LJ22* / LA22* / LB22*
12pF Crystal&load cap.
X100-*1
27.0MHZ
Crystal Matching Test result
: 27pF -> 20pF -> 24pF
12pF Crystal
+3.5V_ST
R103
4.7K
+3.3V_NORMAL
+3.3V_NORMAL
NVRAM
X-TAL
X100
27MHz
Write Protection
R105
4.7K
OPT
R104
4.7K
NC
1
8
2
7
E2
3
VSS
6
4
5
JTAG
R146
10K
MTK_JTAG
AR100
10K
MT5369_XTAL_OUT
1
R182
2.7K
WP
SCL
R136
SDA
R183
2.7K
33
R137
33
R1030 OPT
R1031 OPT
33
SCL_NVRAM
JTDI
3
JTMS
4
JTCLK
5
SDA_NVRAM
EMMC_CLK
R174
10K
IC105
LGE2112
6
I2C_SCL4
33
JTDO
I2C_SDA4
R143
33
AP14
7
JTCLK
MTK_JTAG
+3.3V_NORMAL
8
R144
10K
AM14
JTDI
AR14
JTDO
AR15
JTMS
10
AN14
JTRST#
11
HDCP_EEPROM_MICRO
HDCP EEPROM
A0 1
HDCP_EEPROM_ST
IC100
M24C16-R
NC_2
NC_3
VSS
8
2
7
3
6
4
5
12
R145
10K
MTK_JTAG
IC100-*1
24LC16B
+3.3V_NORMAL
1
0
2
JTRST#
9
NC_1
C115
24pF
C113
24pF
Close to eMMC Flash
(IC8100)
MTK_JTAG
R152 MTK_JTAG
P100
1K
12507WS-12L
VCC
OPT
E1
MT5369_XTAL_IN
- Low : Normal Operation
- High : Write Protection
+3.5V_ST
IC104
M24M01-HRMN6TP
C113-*1
C115-*1
8pF
8pF
50V
50V
12pF Crystal
12pF Crystal
R119
C101
0.1uF
16V
VCC
WC
SCL
SDA
8
AN12
OSCL0
WP
A2 3
6
SCL
5
SDA
AN15
OSCL1
AU34
MT5369_XTAL_OUT
4.7K
R191
22
R192
JTMS
U1RX
JTRST
U1TX
AH26
C116
0.1uF
I2C_SCL1
OSDA0
POWE
POOE
POCE1
OSDA1
POCE0
OSCL1
PDD7
PDD6
XTALI
PDD5
XTALO
PDD4
PDD3
AVDD33_XTAL_STB
PDD2
AVSS33_XTAL_STB
PDD1
PDD0
22
I2C_SDA1
PARB
R147
1K
OPT
STRAPPING
R153
1K
OPT
R150
1K
LED_PWM0
LED_PWM1
AVDD_33SB
OPCTRL3
PACLE
AK18
LED_PWM0
ICE mode + 27M + Serial boot
0
0
0
ICE mode + 27M + ROM to Nand boot
0
0
1
ICE mode + 27M + Rom to eMMC boot
from eMMC pins (share pins w/s NAND)
0
1
0
C117
0.1uF
AK17
AVDD33_VGA_STB
AVSS33_VGA_STB
PAALE
MTK_NEC_TX
EMMC_CMD
C33
B34
EMMC_DATA[2-7]
D33
D29
EMMC_DATA[7]
C30
EMMC_DATA[6]
D30
EMMC_DATA[5]
B31
EMMC_DATA[4]
A31
EMMC_DATA[3]
B32
EMMC_DATA[2]
R157
4.7K
OPT
A32
C32
D32
A34
EMMC_DATA[0]
C29
R154
1K
EMMC_CLK
ICE mode + 27M + ROM to eMMC boot
from SDIO pins
0
1
C118
0.1uF
1
AM27
AVDD33_PLLGP
ORESET
OPT
AVSS33_PLLGP
AU21
IR
+3.3V_NORMAL
R128
1.2K
R131
1.2K
R134
2.7K
R139
2.7K
R142
2.7K
R173
2.7K
R185
2.7K
R188
2.7K
R156
2.7K
R160
2.7K
R164
2.7K
SOC -> Pro:Idiom or CI SLOT
OPT
R177
2.7K
R1026
STB_SCL
R110
33
I2C_SCL1
STB_SDA
R111
33
I2C_SDA1
OPCTRL_11_SCL
R112
33
OPCTRL_10_SDA
R113
33
I2C_SDA2
OSCL1
R114
33
I2C_SCL3
OSDA1
R115
33
I2C_SDA3
OSCL2
R116
33
R117
33
I2C_SDA4
R118
33
I2C_SCL5
OSDA0
R121
33
I2C_SDA5
OPCTRL_1_SCL
R122
33
I2C_SCL6
OPCTRL_0_SDA
R123
33
I2C_SDA6
F37
CI_ADDR[2]
F36
TS_S_OUT_VAL
CI_ADDR[3]
G37
CI_ADDR[4]
G36
CI_ADDR[5]
G35
0
SOC -> CI SLOT
MT5369_MIVAL_ERR
R1022
0
MT5369_MISTRT
R1023
0
CI_ADDR[6]
G34
CI_ADDR[7]
H34
CI_ADDR[8]
L34
CI_ADDR[9]
L32
CI_ADDR[10]
K33
CI_ADDR[11]
K32
CI_ADDR[12]
H33
CI_ADDR[13]
L35
CI_ADDR[14]
K36
J32
J34
R1028
10K
IC106
NLASB3157DFT2G
K34
MT5369_TS_OUT[0]
TCLK_SEL
B1
I2C_SCL4
OSDA2
CI_ADDR[1]
TS_S_OUT_DATA
MT5369_TS_OUT[0-7]
+3.3V_NORMAL
I2C_SCL2
OSCL0
0
TS_S_OUT_CLK
GND
B0
1
6
2
5
3
MT5369_MCLKI
4
SELECT
+3.3V_NORMAL
VCC
A
CI_DATA[0-7]
C121
0.1uF
K35
K37
MT5369_TS_OUT[3]
J37
MT5369_TS_OUT[4]
J35
MT5369_TS_OUT[5]
J33
J36
MT5369_TS_OUT[6]
G33
MT5369_TS_OUT[7]
OPT
R1027
0
MT5369_TS_OUT[1] R1024
MT5369_TS_OUT[2]
MT5369_MCLKI_SW
0
H35
CI_DATA[0]
H31
CI_DATA[1]
F34
CI_DATA[2]
E36
CI_DATA[3]
N33
CI_DATA[4]
P32
CI_DATA[5]
M35
CI_DATA[6]
M37
CI_DATA[7]
M33
F35
MT5369_TS_IN[0]
E35
MT5369_TS_IN[1]
Model Option
+3.3V_NORMAL
E37
MT5369_TS_IN[2]
CI SLOT -> SOC
N32
MT5369_TS_IN[3]
M34
MT5369_TS_IN[4]
M36
MODEL_OPT_0
MODEL_OPT_1
LG FRC2
Reserved
0
1
1
0
1
0
1
E32
WARM_MODE
LOW
C106
0.1uF
OPT
C123
0.1uF
OPT
C122
0.1uF
OPT
/USB2SER_RESET
LAN1_DET
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.
F31
E29
Not Support
MODEL_OPT_9
MODEL_OPT_10
Reserved
EPI
Default
Support
Not Support
M24
Not Support
Support
SC_ID_SOC
MDS62110214
Support
S Tuner
M23
T2 Tuner
MODEL_OPT_8
GASKET9.5T_HEATSINK
MODEL_OPT_7
MDS62110213
MODEL_OPT_8
MODEL_OPT_9
GASKET3.5T_HEATSINK
Disable
Enable
M22
DDR_Default
AP9
AT9
MODEL_OPT_7 M_RFModule_ISP
MODEL_OPT_5
NON_3D_Depth_IC
MDS62110213
DDR_768MB
M21
MODEL_OPT_6
CP BOX
3D_Depth_IC
GASKET3.5T_HEATSINK
DDR
MDS62110213
3D DEPTH
E30
E31
MODEL_OPT_3
GASKET3.5T_HEATSINK
MODEL_OPT_4
MODEL_OPT_5
NON_OPTIC
MODEL_OPT_10
MTK_NON_EPI
R190
4.7K
MTK_NON_DVB_C2_TUNER
R187
4.7K
MTK_NON_DVB_S_TUNER
R184
4.7K
MTK_NON_DVB_T2_TUNER
R141
4.7K
MTK_NON_CP_BOX
R138
4.7K
MTK_DDR_DEFAULT
R133
4.7K
M_RFModule_ISP MODEL_OPT_7
OPTIC
MODEL_OPT_3
M20
MODEL_OPT_6
0
ERROR_OUT
MDS62110213
MODEL_OPT_5
R1033
MODEL_OPT_0
MODEL_OPT_1
GASKET3.5T_HEATSINK
/S2_RESET MODEL_OPT_4
MTK_NON_3D_DEPTH_IC
R129
4.7K
A29
C31
HD
FHD
F32
D31
C102
0.1uF
OPT
MODEL_OPT_3
MTK_NON_OPTIC_Tx_IC
R127
4.7K
100
USB_CTL1
MODEL_OPT_2
MTK_HD
R109
4.7K
R1010
USB_CTL2
MODEL_OPT_0
HIGH
MTK_NO_FRC/FRC3
R107
4.7K
E33
/USB_OCD2
/USB_OCD1
MODEL_OPT_2
MTK_NO_FRC/Int_FRC
R102
4.7K
L33
MT5369_TS_IN[7]
MODEL_OPT_1
Copyright © 2012 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
M32
MT5369_TS_IN[6]
0
NO_FRC
MTK_EPI
R189
4.7K
MTK_DVB_C2_TUNER
R186
4.7K
MTK_DVB_S_TUNER
R175
4.7K
MTK_DVB_T2_TUNER
R140
4.7K
MTK_CP_BOX
R135
4.7K
MTK_DDR_768MB
R132
4.7K
MTK_3D_DEPTH_IC
R130
4.7K
MTK_OPTIC_Tx_IC
R125
4.7K
MTK_FHD
R108
4.7K
MTK_Int_FRC/URSA5
R106
4.7K
MTK_FRC3/URSA5
R101
4.7K
MT5369_TS_IN[5]
SoC
internal
FRC
STB_SCL
AR21
AR9
AU9
MODEL_OPT_6
GPIO1
DEMOD_TSCLK
GPIO2
DEMOD_TSDATA0
GPIO3
DEMOD_TSDATA1
GPIO4
DEMOD_TSDATA2
GPIO5
DEMOD_TSDATA3
GPIO6
DEMOD_TSDATA4
GPIO7
DEMOD_TSDATA5
GPIO8
DEMOD_TSDATA6
GPIO9
DEMOD_TSDATA7
GPIO10
DEMOD_TSSYNC
GPIO11
DEMOD_TSVAL
GPIO12
CI_INT
GPIO14
CI_TSCLK
GPIO15
CI_TSDATA0
GPIO16
CI_TSSYNC
GPIO17
CI_TSVAL
GPIO18
GPIO19
GPIO20
PVR_TSCLK
PVR_TSVAL
GPIO21
PVR_TSSYNC
GPIO22
PVR_TSDATA0
GPIO23
PVR_TSDATA1
GPIO24
GPIO25
SPI_CLK
GPIO27
SPI_DATA
GPIO28
SPI_CLE
GPIO29
AN23
R176
R162
10K
AN24
10K
AP23
R163
10K
AR23
AU23
M_RFModule_RESET
OPC_EN
/TU_RESET
/S2_RESET
AT23
R1016
100
AM24
AM23
T36
OPWM2
GPIO31
OPWM1
GPIO32
OPWM0
C114
0.1uF
16V
SOC <- P:I
U36
TS_S_IN_0_CLK
T33
TS_S_IN_0_VAL
T30
TS_S_IN_0_SYNC
V33
TS_S_IN_0_DATA
V32
V31
V30
T35
T31
/PCM_REG
T37
/PCM_CE1
R35
MT5369_TS_SYNC CI SLOT -> SOC
/PCM_WE
R37
R36
/PCM_OE
R34
R1005
0
R32
R1006
0
R33
R1007
0
P33
R1008
0
P34
R1001
0
P35
N34
N35
MT5369_TS_VAL CI SLOT -> SOC
CI_A_VS1
MT5369_TS_CLK CI SLOT -> SOC
/PCM_IRQA
/PCM_WAIT
+3.3V_NORMAL
/CI_CD2
/CI_CD1
R168
4.7K
OPT
/PCM_IORD
/PCM_IOWR
AU12
GPIO30
R166
2.7K
OPT
AT12
R161
4.7K
OPT
R171
22
R170
22
R169 10K
AR12
PWM_DIM2
PWM_DIM1
A_DIM
OPT
GPIO33
C120
2.2uF
10V
OPT
PWM2_PULL_DOWN_1K
PWM1_PULL_DOWN_1K
A37
GPIO34
SD_D0
GPIO35
SD_D1
GPIO36
T32
N37
SPI_CLK1
GPIO26
22
PCM_RST
N36
GPIO13
SD_D2
GPIO37
SD_D3
GPIO38
SD_CMD
GPIO39
SD_CLK
R197
1K
C35
A36
B35
R198
1K
B36
B37
GPIO40
GPIO41
AT11
GPIO42
LDM_CS
GPIO43
LDM_CLK
GPIO44
LDM_VSYNC
GPIO45
LDM_DO
GPIO46
LDM_DI
AU11
L/DIM0_SCLK
AR10
L/DIM0_VS
AM9
L/DIM0_MOSI
AP10
GPIO47
GPIO48
AN22
GPIO49
LED_PWM1
GPIO50
LED_PWM0
LED_PWM1
AP21
LED_PWM0
GPIO51
GPIO52
5V Tolerance
GPIO53
AU20
GPIO54
OPCTRL11
GPIO55
OPCTRL10
OPCTRL9
NON_EU
R193
10K
MODEL_OPT_4
DEMOD_RST
GPIO0
R172
STB_SDA
T34
H32
TS_S_OUT_SYNC
SOC -> Pro:Idiom or CI SLOT
R1021
MT5369_MCLKI_SW
E
AT21
SOC_RESET
R1002
10K
OPT
4.7K
STB_SDA
CI_ADDR[0]
AMP, L/DIMMING,HDCP KEY
T-CON
MICOM
S/Demod,T2/Demod, LNB
NVRAM
TUNER_MOPLL(T/C,ATV)
R159
FSRC_WR
STB_SCL
CI_ADDR[0-14]
C
33
R158
OPT
D27
AVDD10_LDO
C108
2.2uF
10V
R155
10K
OPT
Q1001
MMBT3904(NXP)
OPT
B
R1003 100
AM22
AK23
AJ20
I2C
+3.3V_NORMAL
OPWRSB
VDD3V3
C107
2.2uF
10V
:
:
:
:
:
:
R178
4.7K
OPT
EMMC_DATA[1]
C34
OIRI
I2C_1
I2C_2
I2C_3
I2C_4
I2C_5
I2C_6
+3.3V_NORMAL
AM20
OPCTRL3
R151
1K
OPT
MTK_NEC_RX
AT16
EMMC_CLK
LED_PWM1
R148
1K
SOC_RX
A35
AK27
+3.3V_NORMAL
SOC_TX
AP18
AU16
AT34
MT5369_XTAL_IN
AVDD_33SB
R181
JTDO
AP15
OSDA1
7
U0RX
OSCL0
VCC
A1 2
VSS 4
13
U0TX
JTDI
AP12
OSDA0
R149
10K
MTK_JTAG
AR18
JTCK
OPCTRL8
ADIN0_SRV
OPCTRL7
ADIN1_SRV
OPCTRL6
ADIN2_SRV
OPCTRL5
ADIN3_SRV
OPCTRL4
ADIN4_SRV
OPCTRL3
ADIN5_SRV
OPCTRL2
ADIN6_SRV
OPCTRL1
ADIN7_SRV
OPCTRL0
OPCTRL_11_SCL
AT20
OPCTRL_10_SDA
AN18
LAN2_DET
AP20
SC_DET
AM18
AN19 R1025
AP19
AR19 R1014
AN21 R1015
AM19 R1009
AN20
AR20
DSUB_DET
100
0 OPT
33 OPT
TCLK_SEL
HDMI_CEC
MAIN_AMP_RESET
OPCTRL3
0
EXT_SPK_DET
OPCTRL_1_SCL
OPCTRL_0_SDA
MODEL OPTION 8 is just for CP Box
It should not be appiled at MP
xxLT760H-UA
MID_MAIN_1
2011.09.29
8
LGE Internal Use Only
PLACE AT JACK SIDE
C319
10uF
16V
1608 sizs For EMI
R314
PC_L_IN_SOC
PC_L_IN
0
R300
C314
100pF
50V
OPT
C300
560pF
50V
OPT
470K
OPT
C320
10uF
16V
1608 sizs For EMI
R336
PC_R_IN_SOC
PC_R_IN
0
R301
470K
OPT
C315
100pF
50V
OPT
C301
560pF
50V
OPT
+5V_NORMAL
R308
1.2K
OPT
R302
180
C311
ARC
HDMI_ARC
1uF
10V
R303
82
DSUB_VSYNC
R324
C329
5pF
50V
OPT
R309
100K
22
DSUB_HSYNC
C330
5pF
50V
OPT
R323
22
DSUB_VSYNC_SOC
OPT
R325
2K
DSUB_HSYNC_SOC
OPT
R326
2K
IC105
LGE2112
IC105
LGE2112
CHANGE SYMBOL
OPT
To NEC & HDMI
R380
HDMI_CEC
0
AA32
AE33
AC33
AH32
DDC_SCL_4_JACK
AD33
AB33
AH33
DDC_SDA_4_JACK
5V_HDMI_2_JACK
5V_HDMI_3_JACK
R304
1K
AG31
R305
1K
AE31
AC31
R307
5V_HDMI_4_JACK
1K
HDMI_0_RX_1
HDMI_1_SCL
HDMI_0_RX_1B
HDMI_2_SCL
HDMI_0_RX_2
HDMI_3_SCL
HDMI_0_RX_2B
HDMI_0_RX_C
AH31
HDMI_0_SDA
HDMI_1_RX_0
HDMI_3_SDA
HDMI_1_RX_0B
HDMI_1_RX_1
HDMI_0_PWR5V
HDMI_1_RX_1B
HDMI_1_PWR5V
HDMI_1_RX_2
HDMI_2_PWR5V
HDMI_1_RX_2B
HDMI_3_PWR5V
HDMI_1_RX_C
AE32
AC32
AJ32
HDMI_HPD_4_JACK
HDMI_1_HPD
HDMI_2_RX_0
HDMI_2_HPD
HDMI_2_RX_0B
HDMI_3_HPD
Y24
W24
AB24
HDMI_2_RX_1
HDMI_2_RX_1B
AA24
C356
10uF
10V
AVDD12_HDMI_0_RX
HDMI_2_RX_2
AVDD12_HDMI_1_RX
HDMI_2_RX_2B
AVDD12_HDMI_2_RX
AVDD12_HDMI_3_RX
HDMI_2_RX_C
AA29
Y29
AC29
C304
0.1uF
C307
0.1uF
HDMI_3_RX_0
AVDD33_HDMI_1_RX
HDMI_3_RX_0B
AVDD33_HDMI_2_RX
HDMI_3_RX_1
AVDD33_HDMI_3_RX
HDMI_3_RX_1B
HDMI_3_RX_2
AF31
AF32
AVSS33_HDMI_RX_1
AO4N
AO4P
D1-_HDMI2_JACK
AF35
AOCLKN
D2+_HDMI2_JACK
AF34
AOCLKP
D2-_HDMI2_JACK
AH35
AO2N
CK+_HDMI2_JACK
AH34
AO2P
CK-_HDMI2_JACK
D0+_HDMI3_JACK
AE36
AD34
E27
MODEL_OPT_9
D0-_HDMI3_JACK
D1+_HDMI3_JACK
AD35
F30
MODEL_OPT_10
F29
R318 OPT 22
R319 OPT 22
D1-_HDMI3_JACK
AC35
MAIN_AMP_MUTE
D2+_HDMI3_JACK
AC34
EXT_AMP_MUTE
D2-_HDMI3_JACK
AE35
EXT_SPK_VOL+
CK+_HDMI3_JACK
AE34
EXT_SPK_VOL-
CK-_HDMI3_JACK
PANEL_CTL
AB35
INV_CTL
AB34
MODEL_OPT_2
AA35
PCM_5V_CTL
AA34
EMMC_RST
HDMI_3_RX_2B
AVSS33_HDMI_RX_2
HDMI_3_RX_C
AVSS33_HDMI_RX_3
HDMI_3_RX_CB
B27
A27
R316
22
EXT_SPK_CONTROL
B28
R317
R348
0
EXT_SPK_CONTROL
OPT
OPT
A28
R347
22
0
C28
D28
E28
F28
B29
USB2 W/O HUB
C37
TCON2
AO0P
TCON3
TCON4
AE4N
TCON5
AE4P
TCON6
AE3N
TCON7
AE3P
TCON8
AECLKN
TCON9
AECLKP
TCON10
AE2N
TCON11
AE2P
TCON12
AE1N
+1.2V_MTK_AVDD
AA36
AE0N
AC37
AC36
AJ6
C350
0.1uF
D0+_HDMI4_JACK
AK34
C354
0.1uF
AJ34
AJ36
AJ33
AK33
AE6
C347
0.1uF
D1-_HDMI4_JACK
AJ37
AF6
AH7
D0-_HDMI4_JACK
D1+_HDMI4_JACK
AJ35
VDD3V3
AVDD12_LVDS_1
AG5
D2-_HDMI4_JACK
AF5
CK+_HDMI4_JACK
AE5
CK-_HDMI4_JACK
AH5
BO4N
AVDD12_VPLL
BO4P
AVDD33_LVDSB
BO3N
AVDD33_LVDSA
BO3P
BOCLKN
AVSS12_LVDS_2
BOCLKP
AVSS12_LVDS_1
BO2N
AVSS12_VPLL
BO2P
AVSS33_LVDSB
BO1N
AVSS33_LVDSA
BO1P
BO0N
AG7
REXT_VPLL
USB_DP_P0
BE4P
BE3N
USB_DM_P1
AU13
WIFI_DM
BE3P
BECLKN
USB_DP_P2
BECLKP
USB_DM_P2
BE2N
AT14
USB2SER_DP
AU14
USB2SER_DM
USB_DP_P3
SC_R_IN_SOC
BE2P
USB_DM_P3
SC_L_IN_SOC
BE1N
BE1P
D35
AP13
BE0N
AVDD33_USB_P0P1
AU37
AU35
AVSS33_USB_P1
AVSS33_USB_P2
PC_R_IN_SOC
W35
+1.2V_MTK_AVDD
W34
Y34
Y35
VDD3V3
C316
0.1uF
PCIE11_TXN
TXVP_0
AVDD33_PCIE11
AM16
AD15
REXT
PCIE11_REFCKN
PCIE11_REFCKP
R310
30K
AT37
AU36
AP34
EPHY_RDN
AR37
EPHY_RDP
AR33
AP32
PHYLED0
W36
W37
AT17
AN16
PHYLED1
AVSS12_PCIE11
AT35
AT36
RXVP_1
W30
30K
EPHY_TDN
AU17
RXVN_1
AVDD12_PCIE11
R311
PC_L_IN_SOC
EPHY_TDP
AU18
TXVN_0
PCIE11_RXN
PCIE11_RXP
U24
V24
C308
0.1uF
AT18
PCIE11_TXP
24K
+1.2V_MTK_AVDD
EPHY_ACTIVITY
AR36
EPHY_LINK
AP37
AR35
R315
AP36
AD14
AVDD12_REC
AD16
AVDD33_COM
AD17
AVDD33_LD
C321
10uF
10V
AR0_ADAC
AIN0_L_AADC
AL0_ADAC
AIN1_L_AADC
AR1_ADAC
AIN2_R_AADC
AL1_ADAC
AIN2_L_AADC
AIN3_R_AADC
AR2_ADAC
AIN3_L_AADC
AL2_ADAC
AIN4_R_AADC
AIN4_L_AADC
AR3_ADAC
AIN5_R_AADC
C352
AVSS12_REC
AVDD33_DAC
AIN6_L_AADC
AVDD33_DAC1
C362
0.1uF
AJ28
AVDD33_AADC
Close to Tuner
IF_N
R331
0
C309
OPT
ALIN
ASPDIF0
ASPDIF1
AOBCK
AN28
AOLRCK
AOMCLK
C363
1uF
25V
C358
0.01uF
50V
AOSDATA4
AOSDATA3
AOSDATA2
51
AOSDATA1
C336
1uF
10V
1uF
R335
AU32
51
AT32
10V
VDD3V3
AK3
AK4
AJ3
AJ4
AJ1
AJ2
AH3
AH4
TXA4N
AU2
CI_ADDR[0-14]
CH3
TXA4P
AT1
CI_ADDR[0]
TXA3N
AU1
TXACLKP
AP1
CH2
C341
0.047uF
VSYNC
RP
BP
AVDD12_DEMOD
C351
0.1uF
R342
AJ26
10K
AVSS33_DEMOD
PB1P
C355
PR1P
U35
Close to MT5369 TP300
IF_AGC
Y1P
RF_AGC
SOY1
COM0
AP31
AN30
LOUTN
PB0P
LOUTP
PR0P
Y0P
V35
OSCL2
V34
OSDA2
OSCL2
TXA0P
CI_ADDR[10]
CI_ADDR[11]
TXB4N
AU6
CI_ADDR[12]
TXB4P
AP6
CI_ADDR[13]
TXB3N
AR6
CI_ADDR[14]
AR29
VDACX_OUT
SC0
AR5
TXBCLKP
AT4
TXB2N
AU4
CH6
TXB2P
AP4
TXB1N
AR4
TXB1P
AP3
TXB0N
AR3
TXB0P
CH5
For PCB Pattern
CH4
SCART_ROUT_SOC
AN34
TU_CVBS
R340
100
C359
0.047uF
AR31
AN29
C361
1uF
AP30
CVBS3P
AK24
AK25
CI_DATA[0]
AM32
CI_DATA[1]
CI_DATA[2]
TP338
TP339
TP340
CI_DATA[3]
TP341
CI_DATA[4]
TP342
CI_DATA[5]
AM33
TP343
CI_DATA[6]
AM36
1.2K
R376
AM35
1.2K
R377
1.2K
R378
1.2K
R379
TP345
C399
1200pF
C398
1200pF
C397
1200pF
TP344
CI_DATA[7]
C3001
1200pF
AF30
DAC_3V3
C365
0.01uF
AE30
PLACE AT JACK SIDE
SPDIF_OUT
C380
0.1uF
ARC
L300
/CI_CD2
BLM15BD121SN1
Y32
AR11
R366
100
AP11
R367
100
AM12
R368
100
R371
AM10
AM11
AN11
AUD_SCK
C333
47pF
50V
R322
75
AUD_LRCK
/CI_CD1
D301
ADLC 5S 02 015
5.5V
AUD_MASTER_CLK
100
C387
22pF
OPT
Don’t use as GPIO
AN10
AUD_LRCH
C389
22pF
OPT
C393
22pF
OPT
C396
33pF
OPT
L301
BLM15BD121SN1
DSUB_HSYNC_SOC
AM25
0.01uF
C366
100
R356
AR24
0.01uF
C367
AU24
0.01uF
C368
100
R358
AP24
0.01uF
C369
100
R359
AT24
1500pF
C370
100
AR22
TP355
TP356
TP357
/PCM_IOWR
TP358
PCM_RST
/PCM_REG
TP307
/PCM_CE1
TP309
/PCM_WE
C335
47pF
50V
TP311
R321
75
C334
47pF
50V
R320
75
/PCM_OE
TP308
D300
ADLC 5S 02 015
5.5V
TP359
DSUB_VSYNC_SOC
R357
L304
/PCM_WAIT
DSUB_B+
BLM15BD121SN1
RGB_DDC_SDA
AP22
TP354
/PCM_IORD
DSUB_G+
AN9
AR25
SC_ID_SOC
DSUB_R+
AR16
RGB_DDC_SCL
D302
ADLC 5S 02 015
5.5V
SC_COM_SOC
AR26
SC_G_SOC
AP26
AU26
AP25
TP364
SC_R_IN_SOC
TP365
SC_L_IN_SOC
TP366
SC_CVBS_IN_SOC
TP367
SC_COM_SOC
TP368
SC_G_SOC
TP369
SC_R_SOC
TP370
SC_B_SOC
TP371
SC_R_SOC
SC_FB_SOC
TP372
SC_B_SOC
DTV/MNT_V_OUT_SOC
TP373
SC
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