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Only for training and service purposes
- 3 -
SAFETY PRECAUTIONS
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 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 1W), keep the resistor 10mm 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 1MΩ and 5.2MΩ.
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 1.5K/10watt resistor in parallel with a 0.15uF 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
0.5mA.
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
1.5 Kohm/10W
To Instrument's
exposed
METALLIC PARTS
Good Earth Ground
such as WATER PIPE,
CONDUIT etc.
AC Volt-meter
IMPORTANT SAFETY NOTICE
0.15uF
Page 4
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Only for training and service purposes
- 4 -
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.
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 1.25cm) 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 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.
SERVICING PRECAUTIONS
Page 5
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Only for training and service purposes
- 5 -
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).
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.
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.
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.
Page 6
LGE Internal Use OnlyCopyright LG Electronics. Inc. All right reserved.
Only for training and service purposes
1. Application range
This spec sheet is applied all of the 32”,42”,47”,55”,60”, 72”
LCD TV with LT12B/C/D/E/N chassis.
2. Requirement for Test
Each part is tested as below without special appointment.
1) Temperature: 25 ºC ± 5 ºC, CST : 40 ± 5 ºC
2) Relative Humidity: 65 ± 10 %
3) Power Voltage : Standard input voltage(100-240V~, 50/60Hz)
* Standard Voltage of each product 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.
3. Test method
1) Performance: LGE TV test method followed
2) Demanded other specification
- Safety : CE, IEC specification
- EMC: CE,IEC
- 6 -
SPECIFICATION
NOTE : Specifications and others are subject to change without notice for improvement.
Page 7
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LGE Internal Use OnlyCopyright LG Electronics. Inc. All right reserved.
Only for training and service purposes
4. General Specification(TV)
No Item Specification Remark
32 wide Color Display Module Resolution: 1920*1080
42 wide Color Display Module Resolution: 1920*1080
47 wide Color Display Module Resolution: 1920*1080
55 wide Color Display Module Resolution: 1920*1080
65 wide Color Display Module Resolution: 1920*1080
1. Display Screen Device
72 wide Color Display Module Resolution: 1920*1080
Min Vertical Freq - 56 Hz
Max Vertical Freq - 62 Hz
Min Horiz. Freq - 30 kHz
Max Horiz. Freq - 80 kHz
Pixel Clock - 170 MHz
Page 16
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LGE Internal Use OnlyCopyright LG Electronics. Inc. All right reserved.
Only for training and service purposes
* Only 3DTV
9. HDMI Input(1.4a)
10. HDMI Input(1.3a)
No Resolution H-freq(kHz) V-freq.(kHz) Pixel clock Proposed 3D input proposed mode
1 1920*1080 53.95 / 54 23.98 / 24 148.35/148.5 HDTV 1080P Frame packing
2 1280*720 89.9 / 90 59.94/60 148.35/148.5 HDTV 720P Frame packing
3 1280*720 75 50 148.5 HDTV 720P Frame packing
4 1920*1080 67.5 60 148.5 HDTV 1080P Side by Side(half), Top and bottom
5 1920*1080 56.250 50 148.5 HDTV 1080P Side by Side(half), Top and bottom,
6 1280*720 45 60 74.25 HDTV 720P Side by Side(half), Top and Bottom
7 1280*720 37.5 50 74.25 HDTV 720P Side by Side(half), Top and Bottom
8 1920*1080 33.75 60 74.25 HDTV 1080i Side by Side(half), Top and Bottom
9 1920*1080 28.125 50 74.25 HDTV 1080i Side by Side(half), Top and Bottom
10 1920*1080 27 24 74.25 HDTV 1080P Side by Side(half), Top and Bottom
11 1920*1080 33.75 30 89.1 HDTV 1080P Side by Side(half), Top and Bottom
No Resolution H-freq(kHz) V-freq.(kHz) Pixel clock Proposed 3D input proposed mode
1 1280*720 45.00 60.00 74.25 HDTV 720P Side by Side, Top & Bottom
2 1280*72037.5005074.25 HDTV 720P Side by Side, Top & Bottom
3 1920*1080 33.75 60.00 74.25 HDTV 1080I Side by Side, Top & Bottom
4 1920*1080 28.125 50.00 74.25 HDTV 1080I Side by Side, Top & Bottom
5 1920*1080 27.00 24.00 74.25 HDTV 1080P Side by Side, Top & Bottom, Checkerboard
6 1920*1080 33.75 30.00 74.25 HDTV 1080P Side by Side, Top & Bottom, Checkerboard
7 1920*1080 67.50 60.00 148.5 HDTV 1080P Side by Side, Top & Bottom, Checkerboard
Single Frame Sequential
8 1920*1080 56.250 50 148.5 HDTV 1080P Side by Side, Top & Bottom, Checkerboard
Single Frame Sequential
Page 17
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Only for training and service purposes
11. Wireless Input(1.3)
12. RGB input 3D(PC)
No Resolution H-freq(kHz) V-freq.(kHz) Pixel clock Proposed 3D input proposed mode
1 1280*720 45.00 60.00 74.25 HDTV 720P Side by Side, Top & Bottom
2 1280*72037.5005074.25 HDTV 720P Side by Side, Top & Bottom
3 1920*1080 33.75 60.00 74.25 HDTV 1080I Side by Side, Top & Bottom
4 1920*1080 28.125 50.00 74.25 HDTV 1080I Side by Side, Top & Bottom
5 1920*1080 27.00 24.00 74.25 HDTV 1080P Side by Side, Top & Bottom, Checkerboard
6 1920*1080 33.75 30.00 74.25 HDTV 1080P Side by Side, Top & Bottom, Checkerboard
7 1920*1080 67.50 60.00 148.5 HDTV 1080P Side by Side, Top & Bottom, Checkerboard
Single Frame Sequential
8 1920*1080 56.250 50 148.5 HDTV 1080P Side by Side, Top & Bottom, Checkerboard
Single Frame Sequential
No Resolution H-freq(kHz) V-freq.(kHz) Pixel clock Proposed
PC DDC
1. 1920*1080 67.50 60.00 148.5 WUXGA (Reduced Blanking) (Side by Side), Top and Bottom
O
Page 18
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Only for training and service purposes
- 18 -
ADJUSTMENT INSTRUCTION
1. Application Range
This specification sheet is applied all of the LT12C/D/E/F/N
LCD TV models, which produced in manufacture department
or similar LG TV factory
2. Notice
(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 ºC ± 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 AC 100-220
V~ 50 / 60Hz.
(5) Before adjustment, execute Heat-Run for 5 minutes.
A After Receive 100% Full white pattern (06CH) then
process Heat-run
(or “8. Test pattern” condition of Ez-Adjust status)
A How to make set white pattern
1) Press Power ON button of Service Remocon
2) Press ADJ button of Service remocon. Select “8. Test
pattern” and, after select “White” using navigation
button, and then you can see 100% Full White pattern.
* In this status you can maintain Heat-Run useless any
pattern generator
* Notice: if you maintain one picture over 20 minutes
(Especially sharp distinction black with white
pattern – 13Ch, or Cross hatch pattern – 09Ch)
then it can appear image stick near black level.
3. Adjustment Items
3.1. PCB Assembly Adjustment
A MAC Address Download
A Adjust 480i Comp1
A Adjust 1080p Comp1/RGB
• If it is necessary, it can adjustment at Manufacture Line
• You can see set adjustment status at “1. ADJUSTCHECK” of the “In-start menu”
A EDID (The Extended Display Identification Data)/DDC
(Display Data Channel) download
3.2. Set Assembly Adjustment
A Color Temperature (White Balance) Adjustment
A Using RS-232C
A PING Test
A Selection Factory output option
4. PCB Assembly Adjustment
4.1. MAC Address
4.1.1. Equipment & Condition
• Play file: Serial.exe
• MAC Address edit
• Input Start / End MAC address
4.1.2 Download method
4.1.2.1 Communication Prot connection
Connect: PCBA Jig-> RS-232C Port== PC-> RS-232C Port
4.1.2.2 MAC Address Download
• Com 1,2,3,4 and 115200(Baudrate)
• Port connection button click(1)
• Load button click(2) for MAC Address write.
• Start MAC Address write button(3)
• Check the OK Or NG
4.1.3 Equipment & Condition
• Each other connection to LAN Port of IP Hub and Jig
PCBA
PC(RS-232C)
RS-23 2C Po r t
Page 19
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Only for training and service purposes
4.1.4 LAN inspection solution
• LAN Port connection with PCB
• Network setting at MENU Mode of TV
• Setting automatic IP
• Setting state confirmation
- If automatic setting is finished, you confirm IP and MAC
Address.
4.1.5 LAN Port Inspection (PING Test)
4.1.5.1 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
4.1.6 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
4.2. Using RS-232C
Adjust 3 items at 3.1 PCB assembly adjustments “adjustment
sequence” one after the order.
• xb 00 40: Change the mode to Component1 (No actions)
• ad 00 10: Adjust 480i Comp
• ad 00 10: Adjust 1080p Comp
• xb 00 60: Change to RGB-PC mode(No action)
• ad 00 10: Adjust 1080p RGB
• xb 00 90: Endo of Adjustmennt
Page 20
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LGE Internal Use OnlyCopyright LG Electronics. Inc. All right reserved.
Only for training and service purposes
5 Factory Adjustment
5.1 Manual Adjust Component 480i/1080p
RGB 1080p
A Summary : Adjustment component 480i/1080i and RGB
1080p is Gain and Black level setting at Analog to Digital
converter, and compensate the RGB deviation
A Using instrument
• Adjustment remocon, 801GF(802B, 802F, 802R) or
MSPG925FA pattern generator (It can output 480i/1080i
horizontal 100% color bar pattern signal, and its output
level must setting 0.7V±0.1V p-p correctly)
A You must make it sure its resolution and pattern cause
every instrument can have different setting
A Adjustment method 480i Comp1, Adjust 1080p Comp1/RGB
(Factory adjustment)
• ADC 480i Component1 adjustment
- Check connection of Component1
- MSPG-925FA -> Model: 209, Pattern 65
• Set Component 480i mode and 100% Horizontal Color
Bar Pattern(HozTV31Bar), then set TV set to
Component1 mode and its screen to “NORMAL”
• ADC 1080p Component1 / RGB adjustment
- Check connection both of Component1 and RGB
- MSPG-925FA -> Model: 225, Pattern 65
• Set Component 1080p mode and 100% Horizontal Color
Bar Pattern(HozTV31Bar), then set TV set to
Component1 mode and its screen to “NORMAL”
• After get each the signal, wait more a second and enter
the “IN-START” with press IN-START key of Service
remocon. After then select “7. External ADC” with
navigator button and press “Enter”.
• After Then Press key of Service remocon “Right
Arrow(VOL+)”
• You can see “ADC Component1 Success”
• Component1 1080p, RGB 1080p Adjust is same method.
• Component 1080p Adjustment in Component1 input
mode
• RGB 1080p adjustment in RGB input mode
• If you success RGB 1080p Adjust. You can see “ADCRGB-DTV Success”
5.2 EDID (The Extended Display
Identification Data) / DDC (Display Data
Channel) Download.
A Summary
• It is established in VESA, for communication between PC
and Monitor without order from user for building user
condition. It helps to make easily use realize “Plug and
Play” function.
• For EDID data write, we use DDC2B protocol.
A Auto Download
• After enter Service Mode by pushing “ADJ” key,
• Enter EDID D/L mode.
• Enter “START” by pushing “OK” key.
=> Caution : - Never connect HDMI & D-sub Cable when
the user downloading .
- Use the proper cables below for EDID
Writing.
§ Edid data and Model option download (RS232)
Page 21
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LGE Internal Use OnlyCopyright LG Electronics. Inc. All right reserved.
Only for training and service purposes
5.2.1 Manual Download
A Write HDMI EDID data
• Using instruments
- Jig. (PC Serial to D-Sub connection) for PC, DDC
adjustment.
- S/W for DDC recording (EDID data write and read)
- D-sub jack
- Additional HDMI cable connection Jig.
• Preparing and setting.
- Set instruments and Jig. Like pic.5), then turn on PC and
Jig.
- Operate DDC write S/W (EDID write & read)
- It will operate in the DOS mode.
Pic.3) For write EDID data, setting Jig and another instruments.
See Working Guide if you want more information about EDID
communication.
LGE Internal Use OnlyCopyright LG Electronics. Inc. All right reserved.
Only for training and service purposes
5.3 Adjustment Color Temperature (White
balance)
A Using Instruments
• Color Analyzer: CA-210 (CH 9)
- Using LCD color temperature, Color Analyzer (CA-210)
must use CH 9, which Matrix compensated (White, Red,
Green, Blue compensation) with CS-2100. See the
Coordination bellowed one.
• Auto-adjustment Equipment (It needs when Autoadjustment – It is availed communicate with RS-232C :
Baud rate: 115200)
• Video Signal Generator MSPG-925F 720p, 216Gray
(Model: 217, Pattern 78)
A Connection Diagram (Auto Adjustment)
• Using Inner Pattern
• Using HDMI input
<Pic.5 Connection Diagram for Adjustment White balance>
A White Balance Adjustment
If you can’t adjust with inner pattern, then you can adjust it
using HDMI pattern. You can select option at “Ez-Adjust
Menu – 7. White Balance” there items “NONE, INNER,
HDMI”. It is normally setting at inner basically. If you can’t
adjust using inner pattern you can select HDMI item, and
you can adjust.
In manual Adjust case, if you press ADJ button of service
remocon, and enter “Ez-Adjust Menu – 7. White Balance”,
then automatically inner pattern operates. (In case of
“Inner” originally “Test-Pattern. On” will be selected in The
“Test-Pattern. On/Off”.
• Connect all cables and equipments like Pic.5)
• Set Baud Rate of RS-232C to 115200. It may set 115200
orignally.
• Connect RS-232C cable to set
• Connect HDMI cable to set
A RS-232C Command (Commonly apply)
• “wb 00 00”: Start Auto-adjustment of white balance.
• “wb 00 10”: Start Gain Adjustment (Inner pattern)
• “jb 00 c0” :
• …
• “wb 00 1f”: End of Adjustment
* If it needs, offset adjustment (wb 00 20-start, wb 00 2f-
end)
•“wb 00 ff”: End of white balance adjustment (inner pattern
disappear)
CA-100+
COL OR
ANALYZER
TYPE; CA-100+
Full W hite Pattern
RS-232C
Page 23
-- 23 -
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O Notice) Adjustment Mapping information
• When Color temperature (White balance) Adjustment
(Automatically)
- Press “Power only key” of service remocon and operate
automatically adjustment.
- Set BaudRate to 115200.
• If it needs, then adjustment “Offset”.
A White Balance Adjustment (Manual adjustment)
• Test Equipment: CA-210
- Using LCD color temperature, Color Analyzer (CA-210)
must use CH 9, which Matrix compensated (White, Red,
Green, Blue compensation) with CS-2100. See the
Coordination bellowed one.
• Manual adjustment sequence is like bellowed one.
- Turn to “Ez-Adjust” mode with press ADJ button of
service remocon.
- Select “10.Test Pattern” with CH+/- button and press
enter. Then set will go on Heat-run mode. Over 30
minutes set let on Heat-run mode.
- Let CA-210 to zero calibration and must has gap more
10cm from center of LCD module when adjustment.
- Press “ADJ” button of service remocon and select
“7.White-Balance” in “Ez-Adjust” then press “
G ” button
of navigation key.
(When press “
G ” button then set will go to full white
mode)
- Adjust at three mode (Cool, Medium, Warm)
- If “cool” mode
Let B-Gain to 192 and R, G, B-Cut to 64 and then
control R, G gain adjustment High Light adjustment.
- If “Medium” and “Warm” mode
Let R-Gain to 192 and R, G, B-Cut to 64 and then
control G, B gain adjustment High Light adjustment.
- All of the three mode
Let R-Gain to 192 and R, G, B-Cut to 64 and then
control G, B gain adjustment High Light adjustment.
- With volume button (+/-) you can adjust.
- After all adjustment finished, with Enter (A key) turn to
Ez-Adjust mode. Then with ADJ button, exit from
adjustment mode
Attachment: White Balance adjustment coordination and
color temperature.
• Using CS-1000 Equipment.
- COOL : T=11000K, ∆uv=0.000, x=0.276 y=0.283
- MEDIUM : T=9300K, ∆uv=0.000, x=0.285 y=0.293
- WARM : T=6500K, ∆uv=0.000, x=0.313 y=0.329
• Using CA-210 Equipment. (9 CH)
- Contrast value: 216 Gray
• Using CA-210 Equipment. (14 CH)
- White Balance adjustment coordination and color
temperature for Edge / IOP LED, ALEF
-White Balance adjustment table for Edge (IOP) LED
Color coordination is different according to heat run time.
LGD IOP LED, LGD EDGE LED, LGD 3D EDGE LED
(for LV5500, LW5700)
White Balance adjustment table for ALEF Model
(LW9500)
White Balance adjustment table for IOL LED MODEL
(LZ9700)
LGE Internal Use OnlyCopyright LG Electronics. Inc. All right reserved.
Only for training and service purposes
5.4 EYE-Q function check
1) Turn on TV
2) Press EYE key of Adj. R/C
3) Cover the Eye Q II sensor on the front of the using your
hand and wait for 6 seconds
4) Confirm that R/G/B value is lower than 10 of the “Raw Data
(Sensor data, Back lignt )” . If after 6 seconds, R/G/B value
is not lower than 10, replace Eye Q II sensor
5) Remove your hand from the Eye Q II sensor and wait for 6
seconds
6) Confirm that “ok” pop up.
If change is not seen, replace Eye Q II sensor
5.5 HDCP (High-Bandwidth Digital
Contents Protection) Setting
• No Need.
5.6 Test of RS-232C control.
Press In-Start button of Service Remocon then set the
“4.Baud Rate” to 115200. Then check RS-232C control and
5.7 Selection of Country option.
Selection of country option is allowed only North American
model (Not allowed Korean model). It is selection of Country
about Rating and Time Zone.
Models: All models which use LA75A Chassis (See the first
page.)
Press “In-Start” button of Service Remocon, then enter the
“Option” Menu with “PIP CH-“ Button
Select one of these three (USA, CANADA, MEXICO) defends
on its market using “Vol. +/-“button.
* Caution : Don’t push The INSTOP KEY after completing
the function inspection.
6. GND and ESD Testing
6.1 Prepare GND and ESD Testing.
A Check the connection between set and power cord
6.2 Operate GND and ESD auto-test.
A Fully connected (Between set and power cord) set enter the
Auto-test sequence.
A Connect D-Jack AV jack test equipment.
A Turn on Auto-controller(GWS103-4)
A Start Auto GND test.
A If its result is NG, then notice with buzzer.
A If its result is OK, then automatically it turns to ESD Test.
A Operate ESD test
A If its result is NG, then notice with buzzer.
A If its result is OK, then process next steps. Notice it with
Good lamp and STOPER Down.Check Items.
A Test Voltage
• GND: 1.5KV/min at 100mA
• Signal: 3KV/min at 100mA
A Test time: just 1 second.
A Test point
• GND test: Test between Power cord GND and Signal
cable metal GND.
• ESD test: Test between Power cord GND and Live and
neutral.
A Leakage current: Set to 0.5mA(rms)
7. Preset Ch information.
In case of POWER ONLY, System color is operated multi
system
In case of IN STOP, System color is operated default system
(PAN-M)
Page 25
- 25 -
LGE Internal Use OnlyCopyright LG Electronics. Inc. All right reserved.
Only for training and service purposes
8. Default Service option.
8.1 ADC-Set.
A R-Gain adjustment Value (default 128)
A G-Gain adjustment Value (default 128)
A B-Gain adjustment Value (default 128)
A R-Offset adjustment Value (default 128)
A G-Offset adjustment Value (default 128)
A B-Offset adjustment Value (default 128)
8.2 White balance. Value.
9. USB DOWNLOAD (*.epk file
download)
9.1 Put the USB Stick to the USB socket
9.2 Press Menu key, and move OPTION
9.3 Press “FAV” Press 7 times.
9.4 Select download file (epk file)
9.5 After download is finished, remove the
USB stick.
9.6 Press “IN-START” key of ADJ remote
control, check the S/W version.
Page 26
LGE Internal Use OnlyCopyright LG Electronics. Inc. All right reserved.
Only for training and service purposes
- 26 -
300
200
530
540
521
400
710
810
910
900
120
510
511
¿˝¿¸∏µ ø‹∫¿‘∑
§ø§
¿‘√øµªÛ
3D
TV
¿∑
¿ß¡¨
Ω∏∆ TV
¿Ã¿¸
∞∆º¡§
3D ø…º«
≥∞±
»Æ¿Œ
«ˆ¿Áπº¤
πº¤æ»≥ ¡§∫«•Ω
≥»
º±»£√≥
∆¿Ã¡ˆ
øµªÛ√≥∏∑
¡øÎ»˜
º±≈
¡ˆøÚ
«—/øµ/º˝¿⁄
ó
»√∞
¿Ã¿¸√≥
!
A2
A5
!
!
!
!
!
!
!
A10
LV1
LV2
EXPLODED VIEW
Many electrical and mechanical parts in this chassis have special safety-related characteristics. These
parts are identified by in the Schematic Diagram and EXPLODED VIEW.
It is essential that these special safety parts should be replaced with the same components as
recommended in this manual to prevent X-RADIATION, Shock, Fire, or other Hazards.
Do not modify the original design without permission of manufacturer.
CI_ADDR[8]:
0: RESETOUTb (in On/Off only) stay asserted until software releases them.
1: Fix amount of delay for de-assertion on RESETOUTb (in On/IOff only)
at end of RESETb pulse (O)
NAND_DATA[3]:
0: MIPS will boot from external flash (O)
1: MIPS will boot from ROM
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.
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.
Run Along COMP_Y_IN,COMP_Pr_IN,COMP_Pb_IN/SC R,G,B Trace
INCM_R
INCM_G
INCM_B
INCM_VID_COMP1
INCM_VID_AV2
INCM_TUNER
INCM_VID_AV1
INCM_VID_SC/COMP2
BCM35230_with_CAP_220pF
IC101-*1
LGE35230
B6
BCM_CAP
VI_R
A6
VI_INCM_R
C7
VI_G
A7
VI_INCM_G
B7
VI_B
C8
VI_INCM_B
C13
HSYNC_IN
A13
VSYNC_IN
C9
VI_Y1
A9
VI_PR1
B9
VI_PB1
B8
VI_INCM_COMP1
C11
VI_SC_R1
A10
VI_SC_G1
B10
VI_SC_B1
C10
VI_INCM_SC1
D10
VI_FB_1/GPIO
F13
VI_FS1
A12
VI_SC_R2
C12
VI_SC_G2
B12
VI_SC_B2
B11
VI_INCM_SC2
E12
VI_FB_2/GPIO
E14
VI_FS2
E15
VI_L1
F17
VI_C1_1
E16
VI_INCM_LC1_1
F14
VI_C1_2
E11
VI_INCM_LC1_2
C18
VI_CVBS1
B18
VI_INCM_CVBS1
A18
VI_CVBS2
C19
VI_INCM_CVBS2
A19
VI_CVBS3
B19
VI_INCM_CVBS3
C20
VI_CVBS4
B20
VI_INCM_CVBS4
E19
VI_SIF1_1
D19
VI_INCM_SIF1_1
E10
VI_SIF1_2
F11
VI_INCM_SIF1_2
SCL3_3.3V
SDA3_3.3V
+3.3V_Normal
R301
1.2K
C301
33pF
50V
PHONE JACK
INCM_AUD_SC/COMP2
R302
1.2K
M_REMOTE_TX
C302
33pF
50V
PC_L_IN
PC_R_IN
AV1_L_IN
AV1_R_IN
INCM_AUD_AV1
AV2_L_IN
AV2_R_IN
INCM_AUD_AV2
SC/COMP2_L_IN
SC/COMP2_R_IN
C3051uF 10V
C3061uF 10V
C3071uF 10V
C3081uF 10V
C3091uF 10V
C3101uF 10V
C3111uF 10V
C3121uF 10V
C3131uF 10V
C3141uF 10V
C3151uF 10V
C3161uF 10V
NON_BCM_CAP
SPDIF_INC_P
SPDIF_INC_N
SPDIF_IND_P
SPDIF_IND_N
I2SSCK_IN/GPIO
I2SWS_IN
I2SSD_IN/GPIO
AADC_LINE_L1
AADC_LINE_R1
AADC_INCM1
AADC_LINE_L2
AADC_LINE_R2
AADC_INCM2
AADC_LINE_L3
AADC_LINE_R3
AADC_INCM3
AADC_LINE_L4
AADC_LINE_R4
AADC_INCM4
AADC_LINE_L5
AADC_LINE_R5
AADC_INCM5
AADC_LINE_L6
AADC_LINE_R6
AADC_INCM6
AADC_LINE_L7
AADC_LINE_R7
AADC_INCM7
IC101
I2SSCK_OUTA/GPIO
I2SWS_OUTA/GPIO
I2SSD_OUTA0/GPIO
I2SSOSCK_OUTA/GPIO
I2SSD_OUTA1/GPIO
I2SSD_OUTA2/GPIO
I2SSCK_OUTC/GPIO
I2SWS_OUTC/GPIO
I2SSD_OUTC/GPIO
I2SSOSCK_OUTC/GPIO
I2SSCK_OUTD/GPIO
I2SWS_OUTD/GPIO
I2SSD_OUTD/GPIO
I2SSOSCK_OUTD/GPIO
SPDIF_OUTA/GPIO
LGE35230(BCM35230KFSBG)
B15
C15
C14
B14
G4
F4
G5
C25
B24
A24
E22
E23
D23
C24
C23
B23
E21
D21
D22
B22
C22
A22
F21
D20
E20
A21
C21
B21
AUDMUTE_0/GPIO
AUDMUTE_1
ADAC_AL_N
ADAC_AL_P
ADAC_AR_N
ADAC_AR_P
ADAC_CL_N
ADAC_CL_P
ADAC_CR_N
ADAC_CR_P
ADAC_DL_N
ADAC_DL_P
ADAC_DR_N
ADAC_DR_P
AF8
AF9
AG9
AC9
AD8
AD9
E2
F2
E3
F3
G2
G3
G1
H1
B13
AG8
E13
C28
C27
D28
D27
C26
A27
B27
B28
B25
A25
A26
B26
R326100
R327100
R328100
R329100
TU_RESET_SUB
HP_DET
AV1_CVBS_DET
TU_RESET
SC_RE1
SC_RE2INCM_AUD_PC
/RST_HUB
S2_RESET
SPDIF_OUT
HP_LOUT_N
HP_LOUT_P
HP_ROUT_N
HP_ROUT_P
SCART1_Lout_N
SCART1_Lout_P
SCART1_Rout_N
SCART1_Rout_P
C337
22pF
OPT
C338
22pF
OPT
C339
22pF
OPT
C340
33pF
OPT
AUD_SCK
AUD_LRCK
AUD_LRCH
AUD_MASTER_CLK
Near
Near
Near
Near
Near
JK1102
JK1103
JK2501
JK1104
JK801
TU2101/2
TU2201/2/3
R3210
R3220
R3230
R3240
AUDIO INCM
Route Between AV1_L_IN & AV1_R_IN Trace
Route Between SC/COMP2_L_IN & SC/COMP2_R_IN Trace
Route Between AV2_L_IN & AV2_R_IN Trace
Route Between PC_L_IN & PC_R_IN Trace
Route Along With TUNER_SIF_IF_N
INCM_AUD_AV1
INCM_AUD_SC/COMP2
INCM_AUD_AV2
INCM_AUD_PC
INCM_SIF
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.
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.
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.
BCM35230
MICOM
6
50
Page 32
BODY_SHIELD
20
EAG62611201
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
ARC
CE_REMOTE
CK-
CK_GND
CK+
D0-
D0_GND
D0+
D1-
D1_GND
D1+
D2-
D2_GND
D2+
5V_HDMI_1
R730
3.6K
OPT
VR703
10V
OPT
CEC_REMOTE
CK-_HDMI1
CK+_HDMI1
D0-_HDMI1
D0+_HDMI1
D1-_HDMI1
D1+_HDMI1
D2-_HDMI1
D2+_HDMI1
R737
0
DUAL COMPONENT
D707,D708
D713
D710,D711
D713
R754
27K
BODY_SHIELD
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+
5V_HDMI_4
R735
3.6K
OPT
VR707
10V
OPT
CEC_REMOTE
CK-_HDMI4
CK+_HDMI4
D0-_HDMI4
D0+_HDMI4
D1-_HDMI4
D1+_HDMI4
D2-_HDMI4
D2+_HDMI4
R727
0
OPT
C717
0.1uF
16V
OPT
DDC_SDA_4
DDC_SCL_4
VR708
10V
OPT
R729
1K
OPT
HDMI_HPD_4
* HDMI CEC
BAT54_SUZHO
CEC_REMOTE
GND
20
EAG62611201
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
R77 5
150
R77 6
63. 4
R728
1K
OPT
HDMI_HPD_1
HDMI_ARC
VR706
10V
OPT
C714
OPT
0.1uF
16V
OPT
DDC_SDA_1
DDC_SCL_1
ARC
C730
0.1uF
1ST : 0DD184009AA 2ND : 0DSIH00028A
1ST : T-BAT54_SUZHO, 2ND : 0DSON00138A
+3.5V_ST
G
SBD
Q710
BSS83
R741
120K
HDMI_CEC
+3.3V_Normal+3.3V_HDMI
L701
BLM18PG121SN1D
C720
0.1uF
16V
C718
10uF
C719
10uF
JK703
RSD-105156-100
BODY_SHIELD
20
EAG62611201
JK701
RSD-105156-100
BODY_SHIELD
20
EAG62611201
JK702
RSD-105156-100
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
19
18
17
16
15
14
13
12
11
10
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+
CE_REMOTE
CK-
CK_GND
CK+
D0-
9
D0_GND
8
D0+
7
D1-
6
D1_GND
5
D1+
4
D2-
3
D2_GND
2
D2+
1
HP_DET
5V
GND
DDC_DATA
DDC_CLK
NC
5V_HDMI_2
R740
3.6K
OPT
5V_HDMI_3
R739
3.6K
OPT
VR701
10V
OPT
VR702
10V
OPT
R725
0
OPT
R731
0
HDMI1
HDMI_HPD_2
R736
VR704
1K
10V
OPT
OPT
C715
0.1uF
16V
OPT
DDC_SDA_2
DDC_SCL_2
CEC_REMOTE
CK-_HDMI2
CK+_HDMI2
D0-_HDMI2
D0+_HDMI2
D1-_HDMI2
D1+_HDMI2
D2-_HDMI2
D2+_HDMI2
HDMI2
HDMI_HPD_3
R726
VR705
1K
10V
OPT
OPT
C716
OPT
0.1uF
16V
OPT
DDC_SDA_3
DDC_SCL_3
CEC_REMOTE
CK-_HDMI3
CK+_HDMI3
D0-_HDMI3
D0+_HDMI3
D1-_HDMI3
D1+_HDMI3
D2-_HDMI3
D2+_HDMI3
RSD-105156-100
JK704
+5V_Normal
D707
R713
4.7K
+5V_Normal
D708
R714
4.7K
5V_HDMI_1
A1CA2
5V_HDMI_3
A1CA2
R715
4.7K
R716
4.7K
HDMI3
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.
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.
BCM35230
2010.10.21
8COMMON JACK
58
Page 34
Q901,Q902,Q903
Q904,Q905,Q906
D903,D904
D905,D906
DUAL COMPONENT
1ST : 0TRIY80001A 2ND : 0TR387500AA
1ST : EAH42720601, 2ND : EAH60994401
IR & KEY
IR
Q901
2SC3052
+3.5V_ST
R903
47K
R902
0
+3.5V_ST
KEY1
KEY2
3.5V
3.3V
S/T_SCL
ST_SDA
GND
GND
IR
GND
GND
IR_15P
P901
12507WR-15L
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
.
IR_12P
P902
12507WR-12L
1
2
3
4
5
6
7
8
9
10
11
12
13
EEPROM_SCL
EEPROM_SDA
LED_B/LOGO
LED_R/BUZZ
C911
100pF
50V
R933
100
R934
100
R9281.5K
D907
5.6V
AMOTECH
LED_R/BUZZ
D903
CDS3C05HDMI1
5.6V
D904
CDS3C05HDMI1
5.6V
D905
CDS3C05HDMI1
5.6V
D906
CDS3C05HDMI1
5.6V
R929
1.5K
LED_B/LG_LOGO
+3.3V_Normal
BLM18PG121SN1D
16V
EEPROM_SCL
EEPROM_SDA
L902
C913
0.1uF
16V
ESD_ATSC
R920
R919
10K
10K
1%
1%
R915
100
KEY1
R916
+3.5V_ST
R908
47K
COMMERCIAL_EU
Q903
2SC3052
COMMERCIAL_EU
WIRELESS
Q904
2SC3052
WIRELESS
+3.5V_ST
R909
3.3K
OPT
+3.5V_ST
R911
47K
C
B
E
COMMERCIAL_EU
COMMERCIAL_US
R910
0
+3.5V_ST
R912
47K
C
B
E
R905
47K
R904
C
10K
B
E
OPT
Q902
2SC3052
C
B
E
COMMERCIAL
R906
COMMERCIAL
22
IR_OUT
WIRELESS
R907
WIRELESS
22
IR_PASS
KEY2
R913
10K
R914
10K
WIRELESS
R917
COMMERCIAL
Q905
2SC3052
COMMERCIAL
R918
WIRELESS
Q906
2SC3052
WIRELESS
100
+3.5V_ST
47K
+3.5V_ST
47K
C
B
E
C
B
E
R921
47K
COMMERCIAL
R922
47K
WIRELESS
+3.5V_ST
C901
0.1uF
C902
0.1uF
OPT
BLM18PG121SN1D
16V
L901
S/T_SCL
S/T_SDA
C903
0.1uF
C904
0.1uF
D901
5.6V
AMOTECH
16V
OPT
Zener Diode is
close to wafer
C905
1000pF
50V
R935
100
R936
100
D902
5.6V
AMOTECH
ESD_ATSC
C912
0.1uF
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.
BCM35230
IR/KEY
9
50
Page 35
WIRELESS READY MODEL
D1001,D1002
Q1001
Q1002
DUAL COMPONENT
1ST : EAH42720601 2ND : EAH60994401
1ST : EBK61012601, 2ND : 0TRDI80002A
1ST : EBK60752501, 2ND : EBK61011501
Wireless power
+24V
R1002
22K
WIRELESS
R1003
2.2K
WIRELESS
WIRELESS_PWR_EN
R1001
10K
WIRELESS
B
C1002
2.2uF
WIRELESS
Q1002
AO3407A
WIRELESS
C
Q1001
MMBT3904(NXP)
WIRELESS
E
JK1001
KJA-PH-3-0168
DETECT
INTERRUPT
GND_1
RESET
GND_2
I2C_SCL
I2C_SDA
GND_3
UART_RX
UART_TX
GND_4
GND_5
IR
WIRELESS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20GND_6
21
SHIELD
VCC(24V/20V/17V)_1
VCC(24V/20V/17V)_2
VCC(24V/20V/17V)_3
VCC(24V/20V/17V)_4
VCC(24V/20V/17V)_1
VCC(24V/20V/17V)_1
+3.3V_Normal
S
G
D
L1001
MLB-201209-0120P-N2
WIRELESS
C1004
10uF
35V
WIRELESS
WIRELESS_DET
WIRELESS_SCL
WIRELESS_SDA
IR_PASS
R1008
WIRELESS
R1007 1K
WIRELESS
D1001
CDS3C05HDMI1
WIRELESS
10K
5.6V
WIRELESS
D1002
5.6V
CDS3C05HDMI1
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.
Wireless I2C connection with I2C_1
Address : 0X20
WIRELESS_SCL
WIRELESS_SDA
R100533
WIRELESS
R100633
WIRELESS
SCL2_3.3V
SDA2_3.3V
BCM35230
10
50WIRELESS
Page 36
CVBS 1 PHONE JACK
D1105
D1107
5.6V
5.6V
ZD1115
5.1V
ZD1116
5.1V
D1108
5.6V
R1110
JK1102
KJA-PH-1-0177
5 M5_GND
4 M4
3 M3_DETECT
1 M1
6 M6
COMPONENT 1 PHONE JACK
D1101
JK1101
KJA-PH-1-0177
5 M5_GND
4 M4
3 M3_DETECT
1 M1
6 M6
5.6V
ZD1117
5.1V
ZD1110
5.1V
ZD1111
5.1V
ZD1112
5.1V
ZD1113
5.1V
ZD1114
5.1V
R1109
75
1%
470K
R1111
470K
+3.3V_Normal
R1105
2.7K
R1106
75
1%
R1107
75
1%
R1108
75
1%
+3.3V_Normal
R1112
2.7K
C1106
47pF
50V
C1107
560pF
50V
C1108
560pF
50V
R1137
10
R1138
10
R1139
10
R1143
22
R1144
22
R1114
1K
C1102
47pF
50V
C1103
27pF
50V
C1104
27pF
50V
R1113
1K
R1136
10
L1110
CM2012FR10KT
L1111
CM2012FR27KT
L1112
CM2012FR27KT
FOR EMI
C1109
560pF
50V
C1110
560pF
50V
C1125
47pF
50V
C1126
27pF
50V
C1127
27pF
50V
COMP1_DET
COMP1_Y
COMP1_Pb
COMP1_Pr
AV1_CVBS_DET
AV1_CVBS_IN
AV1_L_IN
AV1_R_IN
JACK_PACK
JK1105
PPJ238-01
[RD1]E-LUG
6C
[RD1]O-SPRING
5C
[RD1]CONTACT
4C
[WH1]O-SPRING
5B
[YL1]CONTACT
4A
[YL1]O-SPRING
5A
[YL1]E-LUG
6A
[RD2]E-LUG
6H
[RD2]O-SPRING_2
5H
[RD2]CONTACT
4H
[WH2]O-SPRING
5G
[RD2]O-SPRING_1
5F
[RD2]E-LUG-S
7F
[BL2]O-SPRING
5E
[BL2]E-LUG-S
7E
[GN2]CONTACT
4D
[GN2]O-SPRING
5D
[GN2]E-LUG
6D
CVBS2 REAR JACK
JK1104
PPJ233-01
AV2_JACK
[RD]E-LUG
5C
[RD]O-SPRING
4C
[RD]CONTACT
3C
[WH]C-LUG
4B
[YL]CONTACT
3A
[YL]O-SPRING
4A
[YL]E-LUG
5A
COMP2 REAR JACK
COMP2
COMP2
COMP2
COMP2
COMP2
COMP2
ZD1103
5.1V
ZD1104
5.1V
ZD1105
5.1V
ZD1106
5.1V
ZD1107
5.1V
ZD1108
5.1V
AV2
R1141
22
D1109
AMOTECH
5.6V
AV2
D1110
AMOTECH
5.6V
AV2
ZD1101
AV2
5.1V
ZD1102
AV2
5.1V
D1111
AV2
5.6V
COMP2
R1119
0
COMP2
R1124
75
COMP2
R1120
0
COMP2
R1125
75
COMP2
R1121
0
COMP2
R1126
75
D1112
5.6V
COMP2
D1113
5.6V
COMP2
COMP2
D1114
5.6V
AV2
10
10
10
AV2
AV2
COMP2
COMP2
COMP2
R1116
470K
R1117
470K
R1118
75
R1133
R1134
R1135
+3.3V_Normal
+3.3V_Normal
R1128
2.7K
AV2
COMP2
R1122
470K
COMP2
R1123
470K
COMP2_Pr
COMP2_Pb
COMP2_Y
COMP2
R1127
2.7K
C1118
560pF
50V
AV2
C1119
560pF
50V
AV2
C1120
47pF
50V
AV2
BLM18PG121SN1D
C1113
560pF
50V
COMP2
BLM18PG121SN1D
COMP2
C1114
560pF
50V
COMP2_Pr
COMP2_Pb
COMP2_Y
COMP2
COMP2
COMP2
COMP_NON_EU
R11301K
R1142
22
R1129
1K
AV2
L1103
L1104
AV2
C1117-*1
47pF
50V
C1121
560pF
50V
COMP2
COMP2
C1122
560pF
50V
CM2012FR27KT
C1115
27pF
50V
CM2012FR27KT
C1116
27pF
50V
CM2012FR27KT
COMP_EU
C1117
27pF
50V
COMP_EU
L1109
L1108
L1107
FOR EMI
C1123
560pF
50V
AV2
C1124
560pF
50V
AV2
COMP2
R1131
22
COMP2
R1132
22
AV2
R1140
10
SC/COMP2_R_IN
SC/COMP2_L_IN
SC_R/COMP2_Pr
C1128
27pF
50V
SC_B/COMP2_Pb
C1129
27pF
50V
L1107-*1
CM2012FR10KT
COMP_NON_EU
SC_G/COMP2_Y
COMP_NON_EU
C1130
27pF
50V
COMP_EU
SC_DET/COMP2_DET
C1130-*1
47pF
50V
AV2_R_IN
AV2_L_IN
AV2_CVBS_IN
AV2_CVBS_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.
BCM35230
COMP/AV11
50
Page 37
USB_WIFI
+3.3V_Normal
WIFI_DM
WIFI_DP
L1203
BLM18PG121SN1D
WIFI
+5V_USB
+3.3V_USB
L1202
MLB-201209-0120P-N2
C1234
WIFI
0.1uF
16V
For EMI
Close to BCM IC
R12320
WIFI
R12330
WIFI
CDS3C05HDMI1
WIFI
WIFI120-ohm
WIFI
D1201
5.6V
WIFI_ESD
WIFI
C1209
1uF
10V
WIFI
C1210
0.1uF
R1204
12K
1/16W 1%
WIFI
C1211
15pF
WIFI
R1205
1M
WIFI
X1201
24MHz
C1233
0.1uF
16V
WIFI
CDS3C05HDMI1
SIDE_USB_DP
WIFI
C1213
15pF
1%
C1232
100uF
16V
D1202
5.6V
WIFI_ESD
SIDE_USB_DM
R1206
WIFI
100K
VDD
DM
DP
GND
P1201
12507WR-04L
WIFI
1
2
3
4
5
.
+3.3V_USB
DUAL COMPONENT
D1201,D1202
D1203,D1204
D1205,D1206
1ST : EAH42720601 2ND : EAH60994401
USB / DVR Ready
L1205
MLB-201209-0120P-N2
120-ohm
C1220
C1231
10uF
100uF
10V
3AU04S-305-ZC-(LG)
JK1201
1234
USB D OWN STRE AM
5
16V
OPT
D1207
RCLAMP0502BA
D1203
CDS3C05HDMI1
5.6V
IC1204
NC
OUT_2
OUT_1
FLG
AP2191DSG
1
8
7
2
6
3
5
4
EAN61849601
D1205
CDS3C05HDMI1
5.6V
GND
IN_1
IN_2
EN
+3.3V_Normal
R1221
4.7K
OPT
USB_CTL1
R12300
R12310
NON_WIFI
R12240
R12250
NON_WIFI
NON_WIFI
NON_WIFI
R1223
2.7K
+5V_USB
C1224
0.1uF
/USB_OCD1
SIDE_USB_CTL1
SIDE_USB_OCD1
USB_DM1
USB_DP1
SIDE_USB_DM
SIDE_USB_DP
SUSP_IND/LOCAL_PWR/NON_REM[0]
VDDA33_3
USBDM_UP
USBDP_UP
XTALOUT
XTALIN/CLKIN
PLLFILT
RBIAS
VDD33_3
+3.3V_USB
C1204
1uF
10V
WIFI
C1205
0.1uF
WIFI
USB_DM1
USB_DP1
USB_DM2
USB_DP2
C1206
0.1uF
WIFI
C1207
0.1uF
WIFI
C1208
0.1uF
WIFI
USBDM_DN[1]
USBDP_DN[1]
USBDM_DN[2]
USBDP_DN[2]
VDDA33_1
NC_1
NC_2
NC_3
NC_4
[EP]VSS
36
1
THERMAL
2
3
4
5
6
7
8
9
10
VDDA33_2
32
33
34
35
37
IC1202
USB2512B-AEZG
WIFI
11
12
13
14
TEST
CRFILT
OCS_N[1]
WIFI
PRTPWR[1]/BC_EN[1]
C1212
USB_CTL1
/USB_OCD1
29
30
31
15
16
17
VDD33_1
OCS_N[2]
C1214
0.1uF
PRTPWR[2]/BC_EN[2]
1uF
10V
WIFI
USB_CTL2
/USB_OCD2
28
VBUS_DET
27
RESET_N
26
HS_IND/CFG_SEL[1]
25
SCL/SMBCLK/CFG_SEL[0]
24
VDD33_2
23
SDA/SMBDATA/NON_REM[1]
22
NC_8
21
NC_7
20
NC_6
19
18
NC_5
WIFI
R1207
100K
WIFI
C1216
0.1uF
C1215
0.1uF
WIFI
WIFI
R1208
100K
R1212
100K
R1213
WIFI
100K
R1209
OPT
100K
OPT
R1215 100K
R1214 100K
R1216 100K
+3.3V_USB
C1218
0.1uF
OPT
WIFI
C1217
4.7uF
OPT
OPT
OPT
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.
+3.3V_USB
/RST_HUB
USB
3AU04S-305-ZC-(LG)
JK1202
1234
USB D OWN STRE AM
5
L1204
MLB-201209-0120P-N2
120-ohm
C1230
C1219
100uF
10uF
16V
10V
OPT
D1208
RCLAMP0502BA
BCM35230
USB + WIFI
IC1203
AP2191DSG
NC
8
OUT_2
7
OUT_1
6
FLG
5
EAN61849601
D1204
CDS3C05HDMI1
5.6V
+3.3V_Normal
GND
1
IN_1
2
IN_2
3
EN
4
D1206
CDS3C05HDMI1
5.6V
R1220
4.7K
OPT
USB_CTL2
R12280
R12290
R12260
R12270
NON_WIFI
NON_WIFI
NON_WIFI
NON_WIFI
R1222
2.7K
SIDE_USB_CTL2
SIDE_USB_OCD2
USB_DM2
USB_DP2
WIFI_DM
WIFI_DP
12
+5V_USB
C1223
0.1uF
/USB_OCD2
Page 38
TI solution M_REMOTE OPTION
P1302
12507WR-12L
M_REMOTE
13
.
+3.3V_Normal
L1303
120-ohm
R1315
100
R1319
100
M_REMOTE
M_REMOTE
M_REMOTE
M_REMOTE
M_REMOTE
M_REMOTE
M_REMOTE
M_REMOTE
R1316
100
R1317
100
R1318
100
R1320
22
R1324
22
R1325
22
R1326
22
M_REMOTE_RX
M_REMOTE_TX
3D_GPIO_0
3D_GPIO_1
3D_GPIO_2
3D_SYNC_RF
R1321
2.7K
M_REMOTE
3.3V
1
GND
2
3
4
5
6
7
8
9
10
11
12
RX
TX
RESET
DC
DD
GND
GPIO_0
GPIO_1
GPIO_2
3D_SYNC
M_REMOTE
M_REMOTE
+3.3V_Normal
R1322
2.7K
M_REMOTE
R1323
2.7K
M_REMOTE
M_RFModule_RESET
DC_MREMOTE
DD_MREMOTE
ALL M_REMOTE OPTION
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.
BCM35230
13
50M_REMOCON
Page 39
Ethernet Block
JK1401
XRJH-01A-4-DA7-180-LG(B)
R1
1
R2
2
R3
3
R4
4
R5
5
R6
6
R7
7
R8
8
R9
9
R10[GND]
10
R11
11
YL_C
D1
YL_A
D2
GN_C
D3
GN_A
D4
12
SHIELD
R1401 240
R1402
+2.5V_BCM35230
+3.3V_Normal
240
L1401
MLB-201209-0120P-N2
C1401
0.1uF
16V
D1401
5.5V
LAN_ESD
D1405
D1403
5V
5V
LAN_ESD
LAN_ESD
D1402
5.5V
LAN_ESD
D1404
5.5V
LAN_ESD
D1401,D1402
D1403,D1404
D1405,D1406
D1406
5.5V
LAN_ESD
EPHY_ACTIVITY
EPHY_LINK
DUAL COMPONENT
1ST : EAH42720601 2ND : EAH60994401
EPHY_TDP
EPHY_TDN
EPHY_RDP
EPHY_RDN
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.
BCM35230
14ETHERNET
50
Page 40
FHD120Hz LVDS output(51pin+41Pin)
P1501
FI-RE51S-HFK-A
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
R150433
R150633
R150733
R150833
R151633
FRC2
FRC2
FRC2
FRC2
SHARP_OPT
C1501
10uF
25V
OPT
PANEL_VCC
C1502
1000pF
50V
3D_SYNC_RF
SDA2_3.3V
SCL2_3.3V
FRC_RESET
PANEL_CTL
TXA0N
TXA0P
TXA1N
TXA1P
TXA2N
TXA2P
TXACLKN
TXACLKP
TXA3N
TXA3P
TXA4N
TXA4P
TXB0N
TXB0P
TXB1N
TXB1P
TXB2N
TXB2P
TXBCLKN
TXBCLKP
TXB3N
TXB3P
TXB4N
TXB4P
L1501
MLB-201209-0120P-N2
NON_SHARP_60INCH
C1503
0.1uF
16V
LVDS_SEL
+3.3V_Normal
R1513
3.3K
LVDS_SEL_HIGH
R1514
10K
LVDS_SEL_LOW
BIT_SEL
R1512
10K
BIT_SEL_LOW
P1502
FI-RE41S-HFK-A
LVDS_41P
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
1
2
3
4
5
6
7
8
9
TXC0N
TXC0P
TXC1N
TXC1P
TXC2N
TXC2P
TXCCLKN
TXCCLKP
TXC3N
TXC3P
TXC4N
TXC4P
TXD0N
TXD0P
TXD1N
TXD1P
TXD2N
TXD2P
TXDCLKN
TXDCLKP
TXD3N
TXD3P
TXD4N
TXD4P
REVERSE MARK
LVDS_41P
C1504
2.2uF
50V
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.
BCM35230
2010.11.03
5015LVDS
Page 41
[Local Dimming Block]
P1601
12507WR-08L
L/Dim Wafer
1
2
3
4
5
6
7
8
9
R1601 33
LPB_42/47/55
R1602 33
LPB_42/47/55
L/DIM0_SCLK
L/DIM0_MOSI
SCL2_3.3V
SDA2_3.3V
L/DIM0_VS
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.
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.
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.
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.
DCDC_GND and A_GND are connected
DCDC_GND and A_GND are connected in pin#27
PCB_GND and A_GND are connected
Input trace widths should be sized to conduct at least 3A
Ouput trace widths should be sized to conduct at least 2A
R2314
0
LNB
A_GND
A_GND
R2301 33
LNB
C23080.22uF
LNB
R2302 33
OPT
C2309 27pF
SDA1_3.3V
LNB
R2303 0
27pF
OPT
C2310
SCL1_3.3V
LNB
LNB_INT
R2304
4.7K
LNB
+12V
L2302
BLM18PG121SN1D
Max 1.3A
+12V_LNB
LNB
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.
10K/1K to match ADC Full-Scale range
(1% of accruacy)
+5V_Normal
EU
R2545
10K
IC2502
NLASB3157DFT2G
SELECT
6
VCC
5
A
4
Selece = High ==> A = B1
Selece = Low ==> A = B0
REC_8
EU
1K
1%
C2528
1uF
10V
SC_ID
EU
B1
1
EU
GND
2
B0
3
ATV_OUT
C2532
180pF
50V
OPT
INCM_VID_SC
DTV_ATV_SELECT
L2507
120-ohm
BLM18PG121SN1D
NON_DTV_OUT
L2507-*1
0
DVT_OUT
CLOSE TO SOC
C2533
0.1uF
16V
C2534
180pF
50V
OPT
R2549
36
R2551
75
1%
EU
CLOSE TO SOC
CLOSE TO JACK
TP2501
DTV/MNT_V_OUT
AUD_OUT >> EU/CHINA_HOTEL_OPT
+12V
AUD_OUT
SCART1_Lout_N
SCART1_Lout_P
SCART1_Rout_P
SCART1_Rout_N
AUD_OUT
AUD_OUT
CLOSE TO soc
L2501
AUD_OUT
C2501
0.1uF
50V
R25715.6K
R25725.6K
AUD_OUT
AUD_OUT
R25735.6K
DTV/MNT_L_OUT
AUD_OUT
R25705.6K
DTV/MNT_R_OUT
C2513
10uF
16V
C2514
10uF
16V
AUD_OUT
AUD_OUT
C2535
6800pF
AUD_OUT
R2518
1K
50V
AUD_OUT
R25191K
AUD_OUT
R2524 6800pF
50V
AUD_OUT
33pF
AUD_OUT
AUD_OUT
AUD_OUT
R252633K
C2520
R252733K
C2521
33pF
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.
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.
BCM35230
NON CHB
28
50
Page 48
DUAL COMPONENT
China Hotel Option
+3.3V_Normal
AMP_RESET_N
SPK_R+_HOTEL
SPK_R-_HOTEL
AMP_MUTE_HOTEL
AMP_MUTE_HOTEL
R2901 200
CN_HOTEL
B
R2902
10K
CN_HOTEL
C
Q2901
MMBT3904(NXP)
CN_HOTEL
E
AUDIO_R
+24V_AMP
C2901
0.1uF
CN_HOTEL
R2904
CN_HOTEL
CN_HOTEL
R2903 0
Q2901
P2901
12505WS-09A00
CN_HOTEL
0
1
2
3
4
5
6
7
8
9
10
1ST : EBK61012601 2ND : 0TRDI80002A
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.
BCM35230
CHINA HOTEL
29
Page 49
3D_SYNC
L_VS
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.
BCM35230
NON URSA50
36
Page 50
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.
SMD GASKET
M1-*3
MDS62110206
GASKET_6.5T
M2-*3
MDS62110206
GASKET_6.5T
M3-*3
MDS62110206
GASKET_6.5T
M4-*3
MDS62110206
GASKET_6.5T
M5-*3
MDS62110206
GASKET_6.5T
M6-*3
MDS62110206
GASKET_6.5T
M7-*3
MDS62110206
GASKET_6.5T
M8-*3
MDS62110206
GASKET_6.5T
M9-*3
MDS62110206
GASKET_6.5T
M10-*3
MDS62110206
GASKET_6.5T
M11-*3
MDS62110206
GASKET_6.5T
M12-*3
MDS62110206
GASKET_6.5T
SMD GASKET 6.5T
MDS62110204
GASKET_5.5T
MDS62110204
GASKET_5.5T
MDS62110204
GASKET_5.5T
MDS62110204
GASKET_5.5T
MDS62110204
GASKET_5.5T
MDS62110204
GASKET_5.5T
MDS62110204
GASKET_5.5T
MDS62110204
GASKET_5.5T
MDS62110204
GASKET_5.5T
MDS62110204
GASKET_5.5T
MDS62110204
GASKET_5.5T
MDS62110204
GASKET_5.5T
M1-*2
M2-*2
M3-*2
M4-*2
M5-*2
M6-*2
M7-*2
M8-*2
M9-*2
M10-*2
M11-*2
M12-*2
SMD GASKET 5.5T
M1-*1
MDS62110210
GASKET_5.0T
M2-*1
MDS62110210
GASKET_5.0T
M3-*1
MDS62110210
GASKET_5.0T
M4-*1
MDS62110210
GASKET_5.0T
M5-*1
MDS62110210
GASKET_5.0T
M6-*1
MDS62110210
GASKET_5.0T
M7-*1
MDS62110210
GASKET_5.0T
M8-*1
MDS62110210
GASKET_5.0T
M9-*1
MDS62110210
GASKET_5.0T
M10-*1
MDS62110210
GASKET_5.0T
M11-*1
MDS62110210
GASKET_5.0T
M12-*1
MDS62110210
GASKET_5.0T
SMD GASKET 5.0T
M1
MDS62110208
GASKET_4.5T
M2
MDS62110208
GASKET_4.5T
M3
MDS62110208
GASKET_4.5T
M4
MDS62110208
GASKET_4.5T
M5
MDS62110208
GASKET_4.5T
M6
MDS62110208
GASKET_4.5T
M7
MDS62110208
GASKET_4.5T
M8
MDS62110208
GASKET_4.5T
M9
MDS62110208
GASKET_4.5T
M10
MDS62110208
GASKET_4.5T
M11
MDS62110208
GASKET_4.5T
M12
MDS62110208
GASKET_4.5T
SMD GASKET 4.5T
SMD GASKET
BCM35230
GASKET3.5T_HEATSINK
MDS62110213
M20
GASKET3.5T_HEATSINK
MDS62110213
M21
GASKET3.5T_HEATSINK
MDS62110213
M22
GASKET3.5T_HEATSINK
MDS62110213
M23
M1-*6
MDS61887710
GASKET_9.5T
M2-*6
MDS61887710
GASKET_9.5T
M3-*6
MDS61887710
GASKET_9.5T
M4-*6
MDS61887710
GASKET_9.5T
M5-*6
MDS61887710
GASKET_9.5T
M6-*6
MDS61887710
GASKET_9.5T
M7-*6
MDS61887710
GASKET_9.5T
M8-*6
MDS61887710
GASKET_9.5T
M9-*6
MDS61887710
GASKET_9.5T
M10-*6
MDS61887710
GASKET_9.5T
M11-*6
MDS61887710
GASKET_9.5T
M12-*6
MDS61887710
GASKET_9.5T
SMD GASKET 9.5T
MDS62110209
GASKET_8.5T
MDS62110209
GASKET_8.5T
MDS62110209
GASKET_8.5T
MDS62110209
GASKET_8.5T
MDS62110209
GASKET_8.5T
MDS62110209
GASKET_8.5T
MDS62110209
GASKET_8.5T
MDS62110209
GASKET_8.5T
MDS62110209
GASKET_8.5T
MDS62110209
GASKET_8.5T
MDS62110209
GASKET_8.5T
MDS62110209
GASKET_8.5T
M1-*5
M2-*5
M3-*5
M4-*5
M5-*5
M6-*5
M7-*5
M8-*5
M9-*5
M10-*5
M11-*5
M12-*5
SMD GASKET 8.5T
M1-*4
MDS62110205
GASKET_7.5T
M2-*4
MDS62110205
GASKET_7.5T
M3-*4
MDS62110205
GASKET_7.5T
M4-*4
MDS62110205
GASKET_7.5T
M5-*4
MDS62110205
GASKET_7.5T
M6-*4
MDS62110205
GASKET_7.5T
M7-*4
MDS62110205
GASKET_7.5T
M8-*4
MDS62110205
GASKET_7.5T
M9-*4
MDS62110205
GASKET_7.5T
M10-*4
MDS62110205
GASKET_7.5T
M11-*4
MDS62110205
GASKET_7.5T
M12-*4
MDS62110205
GASKET_7.5T
SMD GASKET 7.5T
2010. 09. 18
56
56
Page 51
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.
M13-*2
MDS62110204
GASKET_5.5T
M14-*2
MDS62110204
GASKET_5.5T
M15-*2
MDS62110204
GASKET_5.5T
SMD GASKET 5.5T
M13-*1
MDS62110210
GASKET_5.0T
M14-*1
MDS62110210
GASKET_5.0T
M15-*1
MDS62110210
GASKET_5.0T
SMD GASKET 5.0T
M13
MDS62110208
GASKET_4.5T
M14
MDS62110208
GASKET_4.5T
M15
MDS62110208
GASKET_4.5T
SMD GASKET (UNDER THE TUNER)
SMD GASKET 4.5T
M13-*5
MDS62110209
GASKET_8.5T
M14-*5
MDS62110209
GASKET_8.5T
M15-*5
MDS62110209
GASKET_8.5T
SMD GASKET 8.5T
M13-*4
MDS62110205
GASKET_7.5T
M14-*4
MDS62110205
GASKET_7.5T
M15-*4
MDS62110205
GASKET_7.5T
SMD GASKET 7.5T
M13-*3
MDS62110206
GASKET_6.5T
M14-*3
MDS62110206
GASKET_6.5T
M15-*3
MDS62110206
GASKET_6.5T
M13-*6
MDS61887710
GASKET_9.5T
M14-*6
MDS61887710
GASKET_9.5T
M15-*6
MDS61887710
GASKET_9.5T
SMD GASKET 6.5T
SMD GASKET 9.5T
TUNER SMD GASKET
BCM35230
2010. 09. 18
57
57
Page 52
FROM LIPS & POWER B/D
+3.5V_ST
RT1P141C-T112
Q502
R502
RL_ON
10K
+3.5V_ST
+12V
MLB-201209-0120P-N2
C506
0.1uF
50V
#16/#20/#23
LD - GND OR USE
LE(N.L.D.) - OPEN
LE(L.D.) - USE
C
Q501
B
2SC3052
E
L503
MLB-201209-0120P-N2
C508
0.1uF
16V
L501
R508
4.7K
3
1
2
PWR ON
3.5V
3.5V
GND/P.DIM2
NORMAL_26~55
1
1
24V
3
3
GND
5
5
GND
7
7
9
9
11
11
GND
13
13
GND
15
15
12V
17
17
12V
19
19
12V
21
2122
23
2324
SLIM_32~55
SMAW200-H24S2
P502
FW20020-24S
2
2
4
4
6
6
8
8
10
10
12
12
14
14
16
16
18
18
20
20
22
24
25
P501
24V
24V
GND
GND
3.5V
3.5V
GND
GND/V-sync
INV ON
A.DIM
P.DIM1
Err OUT
L504
MLB-201209-0120P-N2
POWER_16_URSA_SCAN
R574 0
R573 0
POWER_16_BCM_SCAN
R518
0
POWER_16_GND
C519
0.1uF
+24V
50V
L_VS
L/DIM0_VS
INV_CTL_18
A_DIM_20
PWM_DIM_22
Power_DET
PD_+20V
R510-*4
5.6K
1%
PD_+20V
R511-*4
1.3K
1%
PD_+18.5V
R510-*3
4.7K
1%
PD_+18.5V
R511-*3
1.21K
1%
+12V
PD_+12V
R512
2.7K
1%
PD_+12V
R513
1.21K
1%
+24V
+3.5V_ST
PD_24V
R510
8.2K
1%
PD_24V
R511
1.5K
1%
PD_+3.5V
R515
0
5%
NCP803SN293
VCC
3
C580
0.1uF
16V
PD_+18.5_20_24V
PD_+18.5_20_24V
NCP803SN293
VCC
3
C581
0.1uF
16V
PD_+18.5_20_24V
GND
GND
R517
100K
IC503
R516
100K
IC502
+3.5V_ST
R522
10K
OPT
R520
RESET
2
1
RESET
2
1
100
R519
100
PD_+18.5_20_24V
POWER_DET
ESD
C520
0.1uF
16V
not to RESET at 8kV ESD
15V-->3.6V
20V-->3.5V
24V-->3.48V
12V-->3.58V
ST_3.5V-->3.5V
+0.9V_CORE_BCM35230
+12V
L502
BLM18PG121SN1D
Placed on SMD-TOP
C505
C503
10uF
10uF
16V
16V
POWER_ON/OFF2_2
R503
C504
100pF
50V
0.9V_CORE_FB
R501
12K
1%
R2
1K
R504
2K
C509
+3.3V_Normal
TEST
C507
1000pF
50V
R505
6.8K
1%
R1
10K
R506
330
50V
R507
C510
0.01uF
50V
220pF
OPT
ENABLE
TPS40192DRCR
1
FB
2
COMP
3
VDD
4
PGD
5
C513
0.1uF
16V
0.9V_CORE_FB
IC501
11
THERMAL
EP_GND
HDRV
10
9
8
7
6
SW
BOOT
LDRV
BP5
R5774.7
C515
0.47uF
25V
R5784.7
C516
4.7uF
10V
Vout=0.591*(1+R1/R2)
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.
First of all, Check whether there is SVC Bulletin in GCSC System for these model.
ⓒ LG Electronics. Inc.2009
Page 67
Standard Repair Process
Copyright ⓒ 2011 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
Established
date
Revised date
2010. 12 .14
LCD TV
Error
symptom
A. Video error
No video/ Normal audio
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,,,)
☞A4☞A1
No video
Normal audio
Normal
audio
N
Move to No
video/No audio
Y
Check Back Light
On with naked eye
☞A2
Check Power Board 24v output
On
Normal
voltage
Repair Power
Board or parts
Y
Check Power
Board
12v,3.5v etc.
N
Replace Inverter
Y
or module
N
Normal
voltage
Repair Power
Board or parts
N
End
Y
Replace T-con
Board or module
And Adjust VCOM
☞A28
1/13
※Precaution
Always check & record S/W Version and White
Balance value before replacing the Main Board
☞A7 & A3
Replace Main Board
1
Re-enter White Balance value
ⓒ LG Electronics. Inc.2009
Page 68
Standard Repair Process
Copyright ⓒ 2011 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
LCD TV
symptom
No Video/
No audio
Error
☞A4
Check various
voltages of Power
Board ( 3.5V,12V,20V
or 24V…)
A. Video error
No video/ No audio
Normal
voltage?
Replace Power
Board and repair
parts
Y
N
Check and
replace
MAIN B/D
Established
date
Revised date
End
2010. 12 .14
2/13
2
ⓒ LG Electronics. Inc.2009
Page 69
Standard Repair Process
Copyright ⓒ 2011 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
LCD TV
☞ A6
Check RF Signal level
Normal
Signal?
N
Check RF Cable
Connection
1. Reconnection
2. Install Booster
Normal
Picture?
Y
Close
Y
N
Error
symptom
A. Picture Problem
Picture broken/ Freezing
. By using Digital signal level meter
. By using Diagnostics menu on OSD
( Menu→ Set up→ 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?
Contact with signal distributor
or broadcaster (Cable or Air)
Y
N
Check
S/W Version
SVC
Bulletin?
Y
S/W Upgrade
Normal
Picture?
Y
Established
date
Revised date
2010. 12 .14
■ Menu→Setup →Booster
N
Booster menu
On→Off: Check
Off→On: Check
Tuner soldering
N
Normal
Picture?
N
Check
Replace
Main B/D
3/13
Y
Close
Close
3
ⓒ LG Electronics. Inc.2009
Page 70
Standard Repair Process
Copyright ⓒ 2011 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
LCD TV
☞A8
Check color by input
-External Input
-COMPONENT
-RGB
-HDMI/DVI
☞A12
Check Test pattern
Error
symptom
Color
error?
N
Check error
color input
mode
A. Video error
☞ A10/ A11
※ Check
and replace
Y
Link Cable
(LVDS) and
contact
condition
External Input/
Component
error
Color error
Color
error?
N
Check
external
device and
cable
Y
Replace Main B/D
Established
date
Revised date
External device
/Cable
normal
N
Color
error?
End
Y
2010. 12 .14
4/13
Y
Replace module
N
Replace Main B/D
RGB/
HDMI/DVI
error
Check external
device and
cable
4
Request repair
for external
device/cable
N
External device
/Cable
normal
Y
Replace Main B/D
ⓒ LG Electronics. Inc.2009
Page 71
Standard Repair Process
Copyright ⓒ 2011 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
A. Video error
LCD TV
Error
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
-RGB
-HDMI/DVI
☞A12
Check Test pattern
Screen
normal?
N
Replace
module
Check external
Y
device
connection
condition
Normal?
N
Request repair
for external
device
External device screen error-Color error
Check screen
condition by
Check S/W Version
Check
version
Y
S/W Upgrade
Normal
screen?
Y
End
N
N
input
-External Input
-Component
-RGB
-HDMI/DVI
☞ A10/ A11
Check and
Y
replace Link
Cable
External
Input
error
Component
error
RGB
error
HDMI/
DVI
5
Established
date
Revised date
☞ A28
Screen
normal?
End
N
Replace Main B/D
(adjust VCOM)
Y
For LGD panel
Replace Main
B/D
For other panel
Connect other external
device and cable
(Check normal operation of
External Input, Component,
RGB and HDMI/DVI by
connecting Jig, pattern
Generator ,Set-top Box etc.
Connect other external
device and cab le
(Check normal operation of
External Input, Component,
RGB and HDMI/DVI by
connecting Jig, pattern
Generator ,Set-top Box etc.
2010. 12 .14
Replace
Module
normal?
Screen
normal?
Request repair for
external device
Screen
normal?
N
Replace
Main B/D
Y
Y
N
ⓒ LG Electronics. Inc.2009
5/13
N
Screen
Y
End
Replace
Main B/D
Page 72
Standard Repair Process
Copyright ⓒ 2011 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
LCD TV
☞A17
Check
Power LED
. Stand-By: Red
. Operating: white
Error
symptom
Power LED
On?
N
Check Power cord
was inserted properly
N
Normal?
Y
※
Close
Y
Check ST-BY 3.5V
☞A18
B. Power error
No power
DC Power on
by pressing Power Key
On Remote control
Normal
voltage?
Established
date
Revised date
2010. 12 .14
6/13
☞A19
Normal
operation?
Y
N
Check Power
On ‘”High”
OK?
N
Replace Main B/D
Y
Replace
Power
B/D
☞A4
Measure voltage of each output of Power B/D
Y
Y
N
Normal
voltage?
Replace Power B/D
Y
N
Replace Main B/D
Replace Power
B/D
6
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Standard Repair Process
Copyright ⓒ 2011 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
power out
Error
symptom
Error?
Y
Fix A/C cord & Outlet
and check each 3
phase out
B. Power error
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
Abnormal
Abnormal
Established
date
Revised date
CPU
1
Normal
voltage?
Replace Power B/D
Y
N
2010. 12 .14
Replace Main B/D
Replace Main B/D
7/13
Normal?
Replace Power B/D
Y
N
End
* Please refer to the all cases which
can be displayed on power off mode.
StatusPower off ListExplanation
"POWEROFF_REMOTEKEY"Power off by REMOTE CONTROL
"POWEROFF_OFFTIMER"Power off by OFF TIMER
"POWEROFF_SLEEPTIMER"Power off by SLEEP TIMER
"POWEROFF_INSTOP"Power off by INSTOP KEY
"POWEROFF_AUTOOFF"Power off by AUTO OFF
Normal
Abnormal
"POWEROFF_ONTIMER"Power off by ON TIMER
"POWEROFF_RS232C"Power off by RS232C
"POWEROFF_RESREC"Power off by Reservated Record
"POWEROFF_RECEND"Power off by End of Recording
"POWEROFF_SWDOWN"Power off by S/W Download
"POWEROFF_UNKNOWN"Power off by unknown status except listed case
"POWEROFF_ABNORMAL1"Power off by abnormal status except CPU trouble
"POWEROFF_CPUABNORMAL" Power off by CPU Abnormal
7
ⓒ LG Electronics. Inc.2009
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Standard Repair Process
Copyright ⓒ 2011 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
LCD TV
No audio
Screen normal
Error
C. Audio error
symptom
No audio/ Normal video
☞A24☞A25
Check user
menu >
Speaker off
Off
Y
Cancel OFF
Check audio B+
N
24V of Power
Board
Established
date
Revised date
Normal
voltage
Replace Power Board and repair parts
Y
N
2010. 12 .14
8/13
Check
Speaker
disconnection
Disconnection
Y
Replace Speaker
8
N
Replace MAIN BoardEnd
ⓒ LG Electronics. Inc.2009
Page 75
Standard Repair Process
Copyright ⓒ 2011 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
LCD TV
Check input
signal
-RF
-External Input
signal
Error
symptom
C. Audio error
Wrecked audio/ discontinuation/noise
Established
date
Revised date
2010. 12 .14
→ abnormal audio/discontinuation/noise is same after “Check input signal” compared to No audio
☞A25
Signal
normal?
Y
N
(When RF signal is not
received)
Request repair to external
cable/ANT provider
(In case of
External Input
signal error)
Check and fix
external device
Wrecked audio/
Discontinuation/
Noise for
all audio
Wrecked audio/
Discontinuation/
Noise only
for D-TV
Wrecked audio/
Discontinuation/
Noise only
for Analog
Wrecked audio/
Discontinuation/
Noise only
for External Input
Check and replace
speaker and
connector
Replace Main B/D
Connect and check
other external
device
Check audio
B+ Voltage (24V)
Normal
voltage?
N
Replace Power B/D
Replace Main B/D
Normal
audio?
Y
N
Y
9/13
End
Check and fix external device
9
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Standard Repair Process
Copyright ⓒ 2011 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
D. General Function Problem
Remote control & Local switch checking
LCD TV
Error
symptom
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.
operating?
Normal
Y
N
Check & Replace
Baterry of R/C
Normal
operating?
Replace R/C
Check & Repair
Cable connection
Connector solder
Close
N
Normal
operating?
Y
Close
☞A27
N
On Main B/D
Established
date
Revised date
Check B+
3.5V
Normal
Voltage?
N
☞A4
Check 3.5v on Power B/D
Replace Power B/D or
Replace Main B/D
(Power B/D don’t have problem)
☞A27
Y
Check IR
Output signal
2010. 12 .14
10/13
Replace
Main B/D
Normal
Signal?
N
Repair/Replace
IR B/D
Y
10
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Standard Repair Process
Copyright ⓒ 2011 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
LCD TV
Check
input
signal
Error
symptom
Y
Signal
input?
N
Check and fix
external device/cable
D. Function error
External device recognition error
Check technical
information
- Fix information
- S/W Version
Technical
information?
Fix in
accordance
with technical
information
Established
date
Revised date
External Input and
N
Y
Component
Recognition error
RGB,HDMI/
DVI, Optical
Recognition error
2010. 12 .14
11/13
Replace Main B/D
Replace Main B/D
11
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Standard Repair Process
Copyright ⓒ 2011 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
LCD TV
Identify
nose
type
Error
symptom
Circuit
noise
Mechanical
noise
Circuit noise, mechanica l noise
Check
location of
noise
Check location
of noise
E. 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.
Replace PSU(with LED driver)
OR
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
OR
(For models without any fix information,
provide the description)
Established
date
Revised date
2010. 12 .14
12/13
12
ⓒ LG Electronics. Inc.2009
Page 79
Standard Repair Process
Copyright ⓒ 2011 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
LCD TV
Error
symptom
Zoom part with
exterior damage
Module
damage
Cabinet
damage
Remote
controller
damage
F. Exterior defect
Exterior defect
Replace module
Replace cabinet
Replace remote controller
Established
date
Revised date
Adjust VCOM
☞A28
2010. 12 .14
13/13
Stand
dent
Replace stand
13
ⓒ LG Electronics. Inc.2009
Page 80
Contents of LCD TV Standard Repair Process Detail Technical Manual
Copyright ⓒ 2011 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
No.Error symptomContentPageRemarks
1
2LED driver B+ 24V measuring methodA2
A. Video error_ No video/Normal audio
3Check White Balance valueA3
4Power Board voltage measuring methodA4
6
A. Video error_ No video/Video lag/stop
7LCD-TV Version checking methodA7
9
10Tuner Checking PartA9
A. Video error_Color error
11
12Adjustment Test pattern - ADJ KeyA12
13
A. Video error_Vertical/Horizontal bar,
14
residual image, light spot
15Adjustment Test pattern - ADJ KeyA12
Check LCD back light with naked eyeA1
TUNER input signal strength checking methodA6
LCD TV connection diagram A8
Check Link Cable (LVDS) reconnection
condition
LCD TV connection diagram A8
Check Link Cable (LVDS) reconnection