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 1 W), keep the resistor 10 mm away from PCB.
Keep wires away from high voltage or high temperature parts.
Before returning the receiver to the customer,
always perform an AC leakage current check on the exposed
metallic parts of the cabinet, such as antennas, terminals, etc., to
be sure the set is safe to operate without damage of electrical
shock.
Leakage Current Cold Check(Antenna Cold Check)
With the instrument AC plug removed from AC source, connect an
electrical jumper across the two AC plug prongs. Place the AC
switch in the on position, connect one lead of ohm-meter to the AC
plug prongs tied together and touch other ohm-meter lead in turn to
each exposed metallic parts such as antenna terminals, phone
jacks, etc.
If the exposed metallic part has a return path to the chassis, the
measured resistance should be between 1 MΩ and 5.2 MΩ.
When the exposed metal has no return path to the chassis the
reading must be infinite.
An other abnormality exists that must be corrected before the
receiver is returned to the customer.
Leakage Current Hot Check(See below Figure)
Plug the AC cord directly into the AC outlet.
Do not use a line Isolation Transformer during this check.
Connect 1.5 K / 10 watt resistor in parallel with a 0.15 uF capacitor
between a known good earth ground (Water Pipe, Conduit, etc.)
and the exposed metallic parts.
Measure the AC voltage across the resistor using AC voltmeter
with 1000 ohms/volt or more sensitivity.
Reverse plug the AC cord into the AC outlet and repeat AC voltage
measurements for each 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.
CAUTION: Before servicing receivers covered by this service
manual and its supplements and addenda, read and follow the
SAFETY PRECAUTIONS on page 3 of this publication.
NOTE: If unforeseen circumstances create conict between the
following servicing precautions and any of the safety precautions
on page 3 of this publication, always follow the safety precautions.
Remember: Safety First.
General Servicing Precautions
1. Always unplug the receiver AC power cord from the AC power
source before;
a. Removing or reinstalling any component, circuit board mod-
ule or any other receiver assembly.
b. Disconnecting or reconnecting any receiver electrical plug or
other electrical connection.
c. Connecting a test substitute in parallel with an electrolytic
capacitor in the receiver.
CAUTION: A wrong part substitution or incorrect polarity
installation of electrolytic capacitors may result in an explosion hazard.
2. Test high voltage only by measuring it with an appropriate
high voltage meter or other voltage measuring device (DVM,
FETVOM, etc) equipped with a suitable high voltage probe.
Do not test high voltage by "drawing an arc".
3. Do not spray chemicals on or near this receiver or any of its
assemblies.
4. Unless specied otherwise in this service manual, clean
electrical contacts only by applying the following mixture to the
contacts with a pipe cleaner, cotton-tipped stick or comparable
non-abrasive applicator; 10 % (by volume) Acetone and 90 %
(by volume) isopropyl alcohol (90 % - 99 % strength)
CAUTION: This is a ammable mixture.
Unless specied otherwise in this service manual, lubrication of
contacts in not required.
5. Do not defeat any plug/socket B+ voltage interlocks with which
receivers covered by this service manual might be equipped.
6. Do not apply AC power to this instrument and/or any of its
electrical assemblies unless all solid-state device heat sinks are
correctly installed.
7. Always connect the test receiver ground lead to the receiver
chassis ground before connecting the test receiver positive
lead.
Always remove the test receiver ground lead last.
8. Use with this receiver only the test xtures specied in this
service manual.
CAUTION: Do not connect the test xture ground strap to any
heat sink in this receiver.
Electrostatically Sensitive (ES) Devices
Some semiconductor (solid-state) devices can be damaged easily by static electricity. Such components commonly are called
Electrostatically Sensitive (ES) Devices. Examples of typical ES
devices are integrated circuits and some eld-effect transistors
and semiconductor “chip” components. The following techniques
should be used to help reduce the incidence of component damage caused by static by static electricity.
1. Immediately before handling any semiconductor component or
semiconductor-equipped assembly, drain off any electrostatic
charge on your body by touching a known earth ground. Alternatively, obtain and wear a commercially available discharging
wrist strap device, which should be removed to prevent potential shock reasons prior to applying power to the unit under test.
2. After removing an electrical assembly equipped with ES
devices, place the assembly on a conductive surface such as
aluminum foil, to prevent electrostatic charge buildup or exposure of the assembly.
3. Use only a grounded-tip soldering iron to solder or unsolder ES
devices.
4. Use only an anti-static type solder removal device. Some solder
removal devices not classied as “anti-static” can generate
electrical charges sufcient to damage ES devices.
5. Do not use freon-propelled chemicals. These can generate
electrical charges sufcient to damage ES devices.
6. Do not remove a replacement ES device from its protective
package until immediately before you are ready to install it.
(Most replacement ES devices are packaged with leads electrically shorted together by conductive foam, aluminum foil or
comparable conductive material).
7. Immediately before removing the protective material from the
leads of a replacement ES device, touch the protective material
to the chassis or circuit assembly into which the device will be
installed.
CAUTION: Be sure no power is applied to the chassis or circuit,
and observe all other safety precautions.
8. Minimize bodily motions when handling unpackaged replacement ES devices. (Otherwise harmless motion such as the
brushing together of your clothes fabric or the lifting of your
foot from a carpeted oor can generate static electricity sufcient to damage an ES device.)
General Soldering Guidelines
1. Use a grounded-tip, low-wattage soldering iron and appropriate
tip size and shape that will maintain tip temperature within the
range or 500 °F to 600 °F.
2. Use an appropriate gauge of RMA resin-core solder composed
of 60 parts tin/40 parts lead.
3. Keep the soldering iron tip clean and well tinned.
4. Thoroughly clean the surfaces to be soldered. Use a mall wirebristle (0.5 inch, or 1.25 cm) brush with a metal handle.
Do not use freon-propelled spray-on cleaners.
5. Use the following unsoldering technique
a. Allow the soldering iron tip to reach normal temperature.
(500 °F to 600 °F)
b. Heat the component lead until the solder melts.
c. Quickly draw the melted solder with an anti-static, suction-
type solder removal device or with solder braid.
CAUTION: Work quickly to avoid overheating the circuit
board printed foil.
6. Use the following soldering technique.
a. Allow the soldering iron tip to reach a normal temperature
(500 °F to 600 °F)
b. First, hold the soldering iron tip and solder the strand against
the component lead until the solder melts.
c. Quickly move the soldering iron tip to the junction of the
component lead and the printed circuit foil, and hold it there
only until the solder ows onto and around both the component lead and the foil.
CAUTION: Work quickly to avoid overheating the circuit
board printed foil.
d. Closely inspect the solder area and remove any excess or
Some chassis circuit boards have slotted holes (oblong) through
which the IC leads are inserted and then bent at against the circuit foil. When holes are the slotted type, the following technique
should be used to remove and replace the IC. When working with
boards using the familiar round hole, use the standard technique
as outlined in paragraphs 5 and 6 above.
Removal
1. Desolder and straighten each IC lead in one operation by
gently prying up on the lead with the soldering iron tip as the
solder melts.
2. Draw away the melted solder with an anti-static suction-type
solder removal device (or with solder braid) before removing
the IC.
Replacement
1. Carefully insert the replacement IC in the circuit board.
2. Carefully bend each IC lead against the circuit foil pad and
solder it.
3. Clean the soldered areas with a small wire-bristle brush.
(It is not necessary to reapply acrylic coating to the areas).
1. Remove the defective transistor by clipping its leads as close
as possible to the component body.
2. Bend into a "U" shape the end of each of three leads remaining
on the circuit board.
3. Bend into a "U" shape the replacement transistor leads.
4. Connect the replacement transistor leads to the corresponding
leads extending from the circuit board and crimp the "U" with
long nose pliers to insure metal to metal contact then solder
each connection.
Power Output, Transistor Device
Removal/Replacement
1. Heat and remove all solder from around the transistor leads.
2. Remove the heat sink mounting screw (if so equipped).
3. Carefully remove the transistor from the heat sink of the circuit
board.
4. Insert new transistor in the circuit board.
5. Solder each transistor lead, and clip off excess lead.
6. Replace heat sink.
Diode Removal/Replacement
1. Remove defective diode by clipping its leads as close as possible to diode body.
2. Bend the two remaining leads perpendicular y to the circuit
board.
3. Observing diode polarity, wrap each lead of the new diode
around the corresponding lead on the circuit board.
4. Securely crimp each connection and solder it.
5. Inspect (on the circuit board copper side) the solder joints of
the two "original" leads. If they are not shiny, reheat them and if
necessary, apply additional solder.
3. Solder the connections.
CAUTION: Maintain original spacing between the replaced
component and adjacent components and the circuit board to
prevent excessive component temperatures.
Circuit Board Foil Repair
Excessive heat applied to the copper foil of any printed circuit
board will weaken the adhesive that bonds the foil to the circuit
board causing the foil to separate from or "lift-off" the board. The
following guidelines and procedures should be followed whenever
this condition is encountered.
At IC Connections
To repair a defective copper pattern at IC connections use the
following procedure to install a jumper wire on the copper pattern
side of the circuit board. (Use this technique only on IC connections).
1. Carefully remove the damaged copper pattern with a sharp
knife. (Remove only as much copper as absolutely necessary).
2. carefully scratch away the solder resist and acrylic coating (if
used) from the end of the remaining copper pattern.
3. Bend a small "U" in one end of a small gauge jumper wire and
carefully crimp it around the IC pin. Solder the IC connection.
4. Route the jumper wire along the path of the out-away copper
pattern and let it overlap the previously scraped end of the
good copper pattern. Solder the overlapped area and clip off
any excess jumper wire.
At Other Connections
Use the following technique to repair the defective copper pattern
at connections other than IC Pins. This technique involves the
installation of a jumper wire on the component side of the circuit
board.
1. Remove the defective copper pattern with a sharp knife.
Remove at least 1/4 inch of copper, to ensure that a hazardous
condition will not exist if the jumper wire opens.
2. Trace along the copper pattern from both sides of the pattern
break and locate the nearest component that is directly connected to the affected copper pattern.
3. Connect insulated 20-gauge jumper wire from the lead of the
nearest component on one side of the pattern break to the lead
of the nearest component on the other side.
Carefully crimp and solder the connections.
CAUTION: Be sure the insulated jumper wire is dressed so the
it does not touch components or sharp edges.
Fuse and Conventional Resistor
Removal/Replacement
1. Clip each fuse or resistor lead at top of the circuit board hollow
stake.
2. Securely crimp the leads of replacement component around
notch at stake top.
This spec. sheet applies to LT5ZR Chassis applied TV all
models manufactured in TV factory
2. Specification.
(1) Because this is not a hot chassis, it is not necessary to use
an isolation transformer. However, the use of isolation
transformer will help protect test instrument
(2) Adjustment must be done in the correct order.
(3) The adjustment must be performed in the circumstance of
25 ±5ºC of temperature and 65±10% of relative humidity if
there is no specific designation
(4) The input voltage of the receiver must keep 100~240V,
50/60Hz
(5) The receiver must be operated for about 5 minutes prior to
the adjustment when module is in the circumstance of over
15ºC
▪ In case of keeping module is in the circumstance of 0°C, it
should be placed in the circumstance of above 15°C for 2
hours
▪ In case of keeping module is in the circumstance of below
-20°C, it should be placed in the circumstance of above 15°C
for 3 hours
* (Caution) When still image is displayed for a period of 20
minutes or longer (especially where W/B scale is
strong. Digital pattern 13ch and/or Cross hatch
pattern 09ch), there can some afterimage in the
black level area.
4. Automatic Adjustment
4.1. ADC Adjustment
(1) Enter the ADC Calibration in ADJ Menu
(2) Check the ‘Internal’ at ADC Type and push Start button.
(3) Check ‘ OK ‘
4.1.1. Equipment & Condition
(1) USB to RS-232C Jig
(2) MSPG-925 Series Pattern Generator(MSPG-925FA,
Above adjustment items can be also performed in Final
Assembly if needed. Both Board-level and Final assembly
adjustment items can be check using In-Start Menu 1.ADJUST
CHECK.
3.2. Final assembly adjustment
▪ White Balance adjustment
▪ RS-232C functionality check
▪ PING Test
▪ Factory Option setting per destination
▪ Ship-out mode setting (In-Stop)
3.3. Etc.
▪ Ship-out mode
▪ Service Option Default
▪ USB Download(S/W Update, Option, Service only)
▪ ISP Download (Option)
4.1.2. Adjustment method
ProtocolCommandSet ACK
Enter adj. modeaa 00 00a 00 OK00x
Source changexb 00 04
xb 00 06
Begin adj.ad 00 10
Return adj. resultOKx (Case of Success)
Read adj. data(main)
ad 00 20
(sub )
ad 00 21
Conrm adj.ad 00 99NG 03 00x (Fail)
End adj.ad 00 90a 00 OK90x
(Ref.) ADC Adj. RS232C Protocol_Ver1.0
Adj. order
▪ aa 00 00 [Enter ADC adj. mode]
▪ xb 00 04 [Change input source to Component1(480i&1080p)]
▪ ad 00 10 [Adjust 480i&1080p Comp1]
▪ xb 00 06 [Change input source to RGB(1024*768)]
▪ ad 00 10 [Adjust 1920*1080 RGB]
▪ aa 00 90 End adj.
b 00 OK04x (Adjust 480i, 1080p Comp1 )
b 00 OK06x (Adjust 1920*1080 RGB)
NGx (Case of Fail)
(main)
000000000000000000000000007c007b006dx
(Sub)
000000070000000000000000007c0083
0077x
NG 03 01x (Fail)
NG 03 02x (Fail)
OK 03 03x (Success)
(1) Key Write: Com 1,2,3,4 and 115200 (Baudrate)
(2) Barcode: Com 1,2,3,4 and 9600 (Baudrate)
4.2.3. Download process
(1) Select the download items.
(2) Mode check: Online Only
(3) Check the test process : DETECT -> MAC -> Widevine
(4) Play: START
(5) Check of result: Ready, Test, OK or NG
4.2.4. Communication Port connection
(1) Connect: PCBA Jig -> RS-232C Port == PC -> RS-232C
Port
4.3. LAN Inspection
4.3.1. Equipment & Condition
▪ Each other connection to LAN Port of IP Hub and Jig
4.3.2. 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.
4.2.5. Download
(1) TW/CO Models (15Y LCD TV + MAC + Widevine + ESN +
HDCP2.0)
4.3.3. LAN PORT INSPECTION (PING TEST)
(1) Play the LAN Port Test PROGRAM.
(2) Input IP set up for an inspection to Test
Program.
* IP Number : 12.12.2.2.
4.3.4. 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
▪ Press “Power on” key of service remocon.(Baud rate :
115200 bps)
▪ Connect RS-232C Signal to USB Cable to USB.
▪ Write Serial number by use USB port.
▪ Must check the serial number at Instart menu.
■ Method & Notice
A. Serial number D/L is using of scan equipment.
B. Setting of scan equipment operated by Manufacturing
Technology Group.
C. 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
* 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.
a. Press the ‘INSTART’ key of ADJ remote control.
b. Go to the menu ‘7. Model Number D/L’ like below photo.
c. Input the Factory model name or Serial number like below
photo.
5. Manual Adjustment
5.1. ADC adjustment is not needed because of
OTP (Auto ADC adjustment)
5.2. EDID
(The Extended Display Identification Data)
/ DDC (Display Data Channel) download
5.2.1. 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”.
5.2.2. Equipment
▪ Since embedded EDID data is used, EDID download JIG,
HDMI cable and D-sub cable are not need.
▪ Adjust remocon
5.2.3. Download method
(1) Press Adj. key on the Adjust remocon, then select “12.EDID
D/L”.
By pressing Enter key, enter EDID D/L menu
d. Check the model name INSTART menu -> Factory name
displayed
e. Check the Diagnostics (DTV country only) -> Buyer model
displayed
4.5. WIFI MAC ADDRESS CHECK
4.5.1. Using RS232 Command
CommandSet ACK
Transmission[A][l][][Set ID][][20][Cr][O][K][x] or [N][G]
■ Check the menu on in-start
Only for training and service purposes
- 16 -
(2) Select [Start] button by pressing Enter key, HDMI1 / HDMI2
- Objective : To reduce each Panel’s V-COM voltage deviation
- How-it-works : When V-COM gain in the adjust-OSD of each
SET is at default value, each SET can have
flicker by each Panel’s V-COM voltage
deviation. In order to prevent flicker of each
SET, find the desired each Panel’s V-COM
voltage value.
- Adj. condition : normal temperature
1) Surrounding Temperature: 25 ± 5 ºC
2) Warm-up time : About 5 Min
3) Surrounding Humidity: 20 % ~ 80 %
5.4.2. Equipment
(1) Color Analyzer: CA-310 (LED Module : CH 14) or CM-H505
(2) Adj. Computer (During auto adj., RS-232C protocol is
needed)
(3) Adjust Remocon
(4) Signal : internal flicker Pattern in SET
▪ Color Analyzer Matrix should be calibrated using CS-100
5.4.3. Equipment connection MAP
wG
pGGGGG
{}GGmGG
GG
|ziGGyzTYZYjG
zGzSGG
mGh¡G
yzTYZYjG
jG
5.4.5. Adj. method
5.4.5.1. Auto adj. method
(1) Set TV in POWER-ONLY mode using POWER ONLY key
(2) Zero calibrate probe then place it on the center of the
Display
(3) Connect Cable (RS-232C to USB)
(4) Select Model in “V-com adj. Program” and begin “V-com
adj.”
(5) When V-com adj. is complete (OK)
(6) Remove probe and RS-232C to USB cable to complete adj.
▪ V-com Adj. must begin as start command “va 00 00” , and
finish as end command “wb 00 ff”
▪ V-com adjust data
43” inchV-com Data
hexdec
MaxB4180
Default 96150
Min78120
49” inchV-com Data
hexdec
Max8B 139
Default 6D 109
Min4F 79
5.5.5.2. Manual adj. method
(1) Set TV in POWER-ONLY mode using POWER ONLY key
(2) Press HDMI Hot Key(Yellow color), then check the V-com
pattern on TV.
5.4.4. Adj. Command (Protocol)
<Command Format>
CMD ID DATA CR RF
- CMD: Command
- ID : Command
- Data : Command
Ex) [Send: va 00 00\r\n]
▪ RS-232C Command used during auto-adj.
RS-232C COMMAND
CMDDATAID
va0000V-com pattern
vb00 00 ~ FEV-com adj.(internal Flicker pattern)
wb00FFV-com adj. completed
Explanation
- 19 -
Only for training and service purposes
(3) Adjust V-com data using CH+/- key to reduce flicker.
(4) When the pattern is minimum flicker, press the OK.
(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.
[Test condition ]
Temperature : 20 ± 5ºC
Heat run mode : Vivid
Measurement mode : Adjust > White Balance mode
Measurement Point : center
Measurement Device : CA-210 / CA-310
Heat run time : continue 24 hours(for new-born module)
2 hours(for module UTT is over 24 hrs)
[Spec]
- Color coordinate x, y ± 0.015 (after 24 hours aging)
- Color coordinate x ± 0.020, y ± 0.030 (within 24 hours aging)
5.5.2. Equipment
(1) Color Analyzer: CA-210 (LED Module : CH 14)
(2) Adj. Computer (During auto adj., RS-232C protocol is
needed)
(3) Adjust Remocon
(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
5.5.4. Adj. Command (Protocol)
<Command Format>
START 6E A 50 A LEN A 03 A CMD A 00 A VAL A CS A 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]
(1) RS-232C Command used during auto-adj.
RS-232C COMMAND
CMDDATAID
wb0000Begin White Balance adj.
wb0010Gain adj.(internal white pattern)
wb001fGain adj. completed
wb0020Offset adj.(internal white pattern)
wb002fOffset adj. completed
wb00ffEnd White Balance adj.
(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. complete
* (wb 00 20(start), wb 00 2f(endc)) -> Off-set adj.
wb 00 ff -> End white balance auto adj.
Explanation
5.5.3. Equipment connection MAP
(2) Adjustment Map
(Applied Model : LT5ZM Chassis ALL MODELS)
5.5.5.1. Auto WB calibration
(1) Set TV in adj. mode using POWER ONNY key
(2) Zero calibrate probe then place it on the center of the
Display
(3) Connect Cable (RS-232C to USB)
(4) Select mode in adj. Program and begin adj.
(5) When adj. is complete (OK Sign), check adj. status pre
mode(Warm, Medium, Cool)
(6) Remove probe and RS-232C to USB cable to complete adj.
▪ W/B Adj. must begin as start command “wb 00 00” , and
finish as end command “wb 00 ff”, and Adj. offset if need
5.5.6. Reference (White Balance Adj. coordinate and
color temperature)
▪ Luminance: 206 Gray
▪ Standard color coordinate and temperature using CS-1000
(over 26 inch)
Mode
Cool0.2710.27013000K0.0000
Medium0.2860.2899300K0.0000
Warm0.3130.3296500K0.0000
Coordinate
XY
Temp△uv
5.5.5.2. Manual adj. method
(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 -> 7. White-
Balance then press the cursor to the right (KEY►).
(When 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.
** G-fix adjustment
Adjust modes (Cool), Fix the G gain to 172 (default data) and
change the others (G/B Gain).
Adjust two modes(Medium / Warm), Fix the one of R/G/B gain
to 192 (default data) and decrease the others.
▪ If internal pattern is not available, use RF input. In EZ Adj.
menu 7.White Balance, you can select one of 2 Test-pattern:
ON, OFF. Default is inner(ON). By selecting OFF, you can
adjust using RF signal in 216 Gray pattern.
▪ Adj. condition and cautionary items
(1) Lighting condition in surrounding area
Surrounding lighting should be lower 10 lux. Try to isolate
adj. area into dark surrounding.
(2) Probe location
- PDP : Color Analyzer (CA-100, CA-100+, CA210) probe
should be firmly attached to the Module
- LCD : Color Analyzer (CA-210) probe should be within
10cm and perpendicular of the module surface
(90+/-2.5°)
(3) Aging time
- After Aging Start, Keep the Power ON status during 5
Minutes.
- In case of LCD, Back-light on should be checked using no
signal or Full-white pattern.
▪ Standard color coordinate and temperature using CA-210
- Check that Power Cord is fully inserted to the SET. (If loose,
re-insert)
(2) Perform GND & Internal Pressure auto-check
- Unit fully inserted Power cord, Antenna cable and A/V arrive
to the auto-check process.
- Connect D-terminal to AV JACK TESTER
- Auto CONTROLLER(GWS103-4) ON
- Perform GND TEST
- If NG, Buzzer will sound to inform the operator.
- If OK, changeover to I/P check automatically.
(Remove CORD, A/V form AV JACK BOX)
- Perform I/P test
- If NG, Buzzer will sound to inform the operator.
- If OK, Good lamp will lit up and the stopper will allow the
pallet to move on to next process.
6.2. Checkpoint
(1) Test voltage
- GND: 1.5KV/min at 100mA
- SIGNAL: 3KV/min at 100mA
(2) TEST time: 1 second
(3) TEST POINT
- GND Test = POWER CORD GND and SIGNAL CABLE
GND.
- Hi-pot Test = POWER CORD GND and LIVE & NEUTRAL.
(4) LEAKAGE CURRENT: At 0.5mArms
8. USB S/W Download
(optional, Service only)
(1) Put the USB Stick to the USB socket
(2) Automatically detecting update file in USB Stick
- If your downloaded program version in USB Stick is lower
than that of TV set, it didn’t work. Otherwise USB data is
automatically detected.
(3) Show the message “Copying files from memory”
(4) Updating is staring
7. AUDIO output check
NoItemMinTypMaxUnitRemark
1Audio practi-
cal max
Output, L/R
(Distortion=10%
max Output)
2
Speaker
(8Ω Impedance)
*Measurement condition:
(1) RF input: Mono, 1KHz sine wave signal, 100% Modulation
(2) CVBS, Component: 1KHz sine wave signal (0.4Vrms)
(3) RGB PC: 1KHz sine wave signal (0.7Vrms)
10.0
12.0
8.10
10.8WVrms
1012WEQ On
EQ Off
AVL Off
Clear Voice Off
AVL On
Clear Voice On
(5) Updating Completed, The TV will restart automatically
(6) If your TV is turned on, check your updated version and
Tool option.
* If downloading version is more high than your TV have, TV
can lost all channel data. In this case, you have to channel
recover. If all channel data is cleared, you didn’t have a DTV/
ATV test on production line.
* After downloading, TOOL OPTION setting is needed again.
(1) Push "IN-START" key in service remote control.
(2) Select "Tool Option 1" and Push “OK” button.
(3) Punch in the number. (Each model has their number.)
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.
Value Mode Description
4’b1000 SB51_ExtSPI 51 boot from SPI
4’b1001 HEMCU_ExtSPI ARM boot from SPI
4’b1010 HEMCU_ROM_EMMC ARM boot from ROM; outer storage is eMMC
4’b1011 HEMCU_ROM_NAND ARM boot from ROM; outer storage is NAND
4’b1100 DBUS for test only
4’b0000 SB51_ExtSPI + Authentication 51 boot from SPI with ARM authentication
4’b0001 SB51_ExtSPI + Authentication HEMCU_ExtSPI + Authentication
4’b0011 HEMCU_ROM_NAND + Authentication ARM boot from ROM with authentication;
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
Example of Option name
TU_ALL_IntDemod = All Tuner type for Internal demod
TU_M/W = apply TDSM&TDSW Type Tuner
14’ Tuner Type for Global
TDJ’H’-G101D : Half NIM for EU,AJJA
TDJ’H’-H101F : Half NIM for US, KR
TDJ’K’-T101F : Half NIM for TW
TDJ’M’-C301D,F : FULL NIM for China
TDJ’M’-B101F : Brazil NIM with Isolater Type
TDJ’M’-K101F : colombia NIM
TDJ’M’-G101D,G105D,G151D : EU Combo&Full NIM
TDJ’M’-H101F,H151F : Korea PIP tuner
TDJ’W’-A151D : AJJA T2 PIP
1
2
3
4
5
6
7
8
9
10
11
12
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
close to Tuner
L6500
+3.3V_LNA_TU
RF_SWITCH_CTL_TU
IF_AGC_TU
I2C_SCL5_TU
I2C_SDA5_TU
IF_P_TU
should be guarded by ground,Match GND VIA
IF_N_TU
TU_SIF_TU
TU_CVBS_TU
+3.3V_TU
FE_DEMOD1_TS_ERROR
FE_DEMOD1_TS_CLK
FE_DEMOD1_TS_SYNC
FE_DEMOD1_TS_VAL
FE_DEMOD1_TS_DATA[0]
FE_DEMOD1_TS_DATA[1]
FE_DEMOD1_TS_DATA[2]
FE_DEMOD1_TS_DATA[3]
FE_DEMOD1_TS_DATA[4]
FE_DEMOD1_TS_DATA[5]
FE_DEMOD1_TS_DATA[6]
FE_DEMOD1_TS_DATA[7]
/TU_RESET1_TU
+3.3V_DEMOD_TU
I2C_SCL2_TU
D_Demod_Core
LNB_TX
I2C_SDA2_TU
LNB_OUT
PZ1608U121-2R0TF
C6501
0.1uF
TU_ALL_IntDemod
C6502
0.1uF
16V
+3.3V_TUNER
close to Tuner
close to TUNER
TU_K/M/W_TW/BR/CO
TU_K/M/W_TW/BR/CO
R6503
C6504
10K
0.1uF
C6505
47pF
50V
OPT
C6503
47pF
50V
OPT
R6504
10
TU_ALL_IntDemod
R6505
10
TU_ALL_IntDemod
FE_DEMOD1_TS_DATA[3]
TU_M/W
C6507
16V
0.1uF
PZ1608U121-2R0TF
TU_M/W
C6506
0.1uF
LNB_TX
LNB_OUT
R6507
R6506
TU_ALL_IntDemod
TU_ALL
AR6500
33
1/16W
C6519
33pF
TU_H/M_EU/BR/TW/CO/KR
C6520
33pF
TU_H/M_EU/BR/TW/CO/KR
close to Tuner
@netLa
@netLa
@netLa
@netLa
@netLa
@netLa
@netLa
TU_M/W
R6501
100
TU_M/W
L6505
1K
TU_K/M/W_TW/BR/CO
1K
I2C_SCL5
I2C_SDA5
L6502
OPT
TU_M_KR/EU // W_ALL
L6501
PZ1608U121-2R0TF
C6510
0.1uF
TU_M_KR/EU // W_ALL
FE_DEMOD1_TS_ERROR
FE_DEMOD1_TS_CLK
FE_DEMOD1_TS_SYNC
FE_DEMOD1_TS_VAL
FE_DEMOD1_TS_DATA[0-7]
/TU_RESET1
TU_M/W
L6503
PZ1608U121-2R0TF
C6511
TU_M/W
0.1uF
Demod_Core
OPT
C6512
18pF
50V
TU_W_BR/TW
AR6500-*1
200
1/16W
IF_P
IF_N
+3.3V_TUNER
OPT
C6513
18pF
50V
RF_SWITCH_CTL
IF_AGC
+3.3V_TUNER
TU_M/W
AR6501
33
1/16W
1. should be guarded by ground
2. No via on both of them
3. Signal Width >= 12mils
Signal to Signal Width = 12mils
TU_ALL_2178B
R6513 0
Ground Width >= 24mils
TU_SIF
TU_ALL_2178B
I2C_SCL2
I2C_SDA2
+3.3V_TUNER
R6516
200
E
KEC_TU_ALL_2178B_TR
B
Q6502
2N3906S-RTK
C
1608 perallel
because of derating
TU_ALL_2178B
R6517
200
TU_CVBS
E
NXP_TU_ALL_2178B_TR
B
Q6502-*1
MMBT3906(NXP)
C
+3.3V_NORMAL
ESD_TU_M/W
ZD6501
5V
TU_M/W
C6500
0.1uF
16V
+5V_NORMAL
TU_M/W
C6515
1uF
25V
+3.3V_NORMAL
C6517
22uF
10V
TU_M/W
IC6500
AP2132MP-2.5TRG1
R6500
10K
TU_M/W
VCTRL
PG
1
EN
2
VIN
3
2A
4
TU_M/W
C6516
0.1uF
Vout=0.6*(1+R1/R2)
L6504
PZ1608U121-2R0TF
[EP]
GND
8
ADJ
9
7
THERMAL
VOUT
6
NC
5
+3.3V_TUNER
C6508
0.1uF
16V
T2 : Max 1.7A
else : Max 0.7A
TU_M/W_1.2V
10K
R2
R65 21
R1
R65 19
10. 5K
TU_M/W_1.2V
Demod_Core
R6521-*1
18K
R6519-*1
16K
TU_M/W
C6518
10uF
10V
TU_M/W_1.1V
TU_M/W_1.1V
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
Input trace widths should be sized to conduct at least 3A
Ouput trace widths should be sized to conduct at least 2A
Max 1.3A
C6909
10uF
25V
LNB
A_GND
close to VIN pin(#15)
C6910
0.1uF
50V
LNB
C6912
LNB
0.1uF
LNB
C69110.22uF
0
R6908
LNB_NON_Tx
LNB
R6903
39K
1/16W
1%
Caution!! need isolated GND
R6904
0
A_GND
+12V
+3.3V_NORMAL
R6910
10K
1/16W
5%
C6913
0.1uF
50V
OPT
C6915
4.7uF
10V
B
C6914
R6911
36K
0.1uF
50V
R6909
150K
C
Q6902
MMBT3904(NXP)
E
NXP_Obsolete
Q6901
PMV48XP
S
G
Q6901-*1
D
AOS
AO3435
S
+12V_M
D
G
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
*Pin36(GPLUS_MODE)
HIGH : High luminance
LOW or NC : Low Power
LM14A : INTERNAL PULL-UP.
DATA_FORMAT_1_SOC
AR7100
0
1/16W
Data_Format_1
Data_Format_0
PWM_TOUT
+1.8V
LOCKAn_HTPDAn_3.3VPullup
R7128
10K
LOCKAn_HTPDAn_3.3VPullup
R7130
LOCKAn_IN
HTPDAn_IN
100
LOCKAn_HTPDAn_3.3VPullup
+1.8V
LOCKAn_HTPDAn_3.3VPullup
R7127
10K
LOCKAn_HTPDAn_3.3VPullup
R7129
100
I2C_SCL6
I2C_SDA6
G
Data Input Format[1:0]
*Mode 1 (NON Division)
- Data Format 0(Pin37) = Low
Data Format 1(Pin36) = Low
*Mode 3 (4 Division)
- Data Format 0(Pin37) = Low
Data Format 1(Pin36) = High
LOCKAn_HTPDAn_3.3VPullup
LOCKAn_HTPDAn_3.3VPullup
B
+3.3V_NORMAL
LOCKAn_HTPDAn_3.3VPullup
B
D
DIODES_LGD/INX_Module_TCON_I2C_EN_FET(SUB)
Q7101-*1
2N7002K
EBK42767801
S
LOCKAn_HTPDAn_3.3VPullup
R7132
10K
R7134
10K
C
Q7103
2N3904S
KEC_LOCKAn_HTPDAn_3.3VPullup_TR
E
R7131
10K
R7133
10K
C
Q7102
2N3904S
KEC_LOCKAn_HTPDAn_3.3VPullup_TR
E
B
R7136
10K
C
Q7105
B
2N3904S
KEC_LOCKAn_HTPDAn_3.3VPullup_TR
E
C
Q7103-*1
B
MMBT3904(NXP)
NXP_LOCKAn_HTPDAn_3.3VPullup_TR
E
LOCKAn_HTPDAn_3.3VPullup
R7135
10K
C
Q7104
B
2N3904S
KEC_LOCKAn_HTPDAn_3.3VPullup_TR
E
C
Q7102-*1
MMBT3904(NXP)
NXP_LOCKAn_HTPDAn_3.3VPullup_TR
E
LOCKAn
HTPDAn
C
Q7105-*1
B
MMBT3904(NXP)
NXP_LOCKAn_HTPDAn_3.3VPullup_TR
E
C
Q7104-*1
B
MMBT3904(NXP)
NXP_LOCKAn_HTPDAn_3.3VPullup_TR
E
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
R13216
R1322010K
Debug Print OFF
10K
OPT
R13221
R1321710K
Div_BIT0_1
R13222 10K
10K
R13223
Div_BIT0_0
R1322410K
Div_BIT1_1
URSA_RX_LVDS
10K
Div_BIT1_0
R13225
URSA_RX_Vx1
+3.3V_NORMAL
10K
LGD_Module
R13233
URSA_OPT_0_1
R13230 10K
URSA_OPT_1_1
10K
OS_Module
URSA_OPT_0_0
R13231 10K
URSA_OPT_1_0
R13232
R13234 10K
URSA_BIT0_1
URSA_BIT1_1
URSA_BIT1_0
URSA_BIT0_0
R13235 10K
R13236 10K
R13237 10K
R13239 10K
URSA_BIT2_1
URSA_BIT2_0
R13240 10K
Chip Config
Debug/ISP ADDR
Slave (Debug Port:0XB4,ISP:0X98)
CHIP_CONF:{DIM2,DIM1,DIM0}
CHIP_CONF=3’d7:111:boot from SPI Flash
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
BSD-15Y-LM14A-148_00-HD
URSA11_Power
Page 63
Page 64
TROUBLE SHOOTING
Copyright ⓒ 2015 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
Page 65
Contents of Standard Repair Process
Copyright ⓒ 2015 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Vertical/Horizontal bar, residual image,
light spot, external device color error
No power 6
Off when on, off while viewing, power
auto on/off
No audio/Normal video 8
C. Audio error
9 Wrecked audio/discontinuation/noise 9
10
11
Remote control & Local switch checking
MR15 operating checking 11
5
7
10
12
D. Function error
13 Camera operating checking 13
14 External device recognition error 14
15 E. Noise Circuit noise, mechanical noise 15
16 F. Exterior error Exterior defect 16
First of all, Check whether there is SVC Bulletin in GCSC System for these model.
Wifi operating checking 12
Page 66
Standard Repair Process
Copyright ⓒ 2015 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
Error
symptom
A. Video error
No video/ Normal audio
Established
date
Revised date
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,,,)
☞A18 ☞A1
N
Y
Check Back Light
On with naked eye
☞A18
Check Power Board 12V output
On
Normal
voltage
N
Repair Power
Board or parts
Y N Check Power
Board
12V,3.5V,3.3V etc.
Replace Inverter
Y
or module
Normal
voltage
N
Repair Power
Board or parts
End
Replace T-con/Main
Y
Board or module
And Adjust VCOM
No video
Normal audio
Normal
audio
Move to No
video/No audio
1/16
※Precaution
Always check & record S/W Version and White
Balance value before replacing the Main Board
☞A4 & A2
Replace Main Board
1
Re-enter White Balance value
Page 67
Standard Repair Process
Copyright ⓒ 2015 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
Error
symptom
No Video/
No audio
☞A18
Check various
voltages of Power
Board ( 3.3V,
3.5V,12V…)
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
2/16
2
Page 68
Standard Repair Process
Copyright ⓒ 2015 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
Error
symptom
☞ A3
Check RF Signal level
Normal
Signal?
N
Check RF Cable
Connection
1. Reconnection
2. Install Booster
Normal
Picture?
Y
Close
Y
N
A. Video error
Picture broken/ Freezing
Established
date
Revised date
. By using Digital signal level meter
. By using Diagnostics menu on OSD
( Advanced→ Channels→ Channel Tuning→ Manual Tuning → Check the Signal )
- 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`
☞ A4
Normal
Picture?
Contact with signal distributor
or broadcaster (Cable or Air)
Y
S/W Version
N
Check
SVC
Bulletin?
S/W Upgrade
Normal
Picture?
Y
N
Tuner soldering
Y
N
Check
N
Replace
Main B/D
3/16
Y
Close
Close
3
Page 69
Standard Repair Process
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Error
symptom
☞A6
Check color by input
-External Input
-COMPONENT
-AV
-HDMI
☞A8
Check Test pattern
Color
error?
N
Check error
color input
mode
A. Video error
☞ A7
※ Check and
replace Link
Y
Cable
(V by one)
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
4/16
Y
Replace module
N
Replace Main/T-con B/D
HDMI
error
Check external
device and
cable
4
Request repair
for external
device/cable
N
External device
/Cable
normal
Y
Replace Main/T-con B/D
Page 70
Standard Repair Process
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LGE Internal Use Only
Error
symptom
Vertical / Horizontal bar, residual image,
A. Video error
light spot, external device color error
Vertical/Horizontal bar, residual image, light spot
☞A6
Check color condition by input
-External Input
-Component
-HDMI
☞A8
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 input
Check S/W Version
Check
version
Y
S/W Upgrade
N
-External Input
-Component
-HDMI/DVI
Component
☞ A7
Check and
Y
replace Link
Cable
External
Input
error
error
Established
date
Revised date
Y
N
Replace Main/T-con B/D
(adjust VCOM)
For LGD panel
Replace Main B/D
Screen
normal?
End
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.
Screen
N
normal?
Y
Request repair for
external device
5/16
Replace
Module
N
Screen
normal?
Y
End
Replace
Main/T-con
B/D
Normal
screen?
End
N
Y
5
HDMI/
DVI
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.
Y
Screen
normal?
N
Replace
Main /T-con
B/D
Page 71
Standard Repair Process
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Only for training and service purposes
LGE Internal Use Only
Error
symptom
☞A17
Check
Logo LED
. Stand-By: Red or Turn On
. Operating: Turn Off
Power LED
Check Power cord
was inserted properly
On?
N
Normal?
Y
Close
Y
N
Check ST-BY 3.5V
☞A18
B. Power error
No power
DC Power on
by pressing Power Key
On Remote control
Normal
voltage?
Y
Y
N
Established
date
Revised date
☞A18
Y
N
Check Power
On ‘”High”
Replace Main B/D
Normal
operation?
☞A18
Measure voltage of each output of Power B/D
N
Y
Replace Main B/D
Normal
voltage?
Replace Power B/D
OK?
Y
6/16
Replace
Power
B/D
Replace Power
B/D
6
Page 72
Standard Repair Process
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Only for training and service purposes
LGE Internal Use Only
Error
symptom
Check outlet
Check A/C cord
Check for all 3- phase
power out
Off when on, off while viewing, power auto on/off
N
Error?
Y
Fix A/C cord & Outlet
and check each 3
phase out
B. Power error
☞A19
Check Power Off
Mode
☞A18
(If Power Off mode is
not displayed)
Check Power B/D
voltage
※ Caution
Check and fix exterior
of Power B/D Part
Established
date
Revised date
CPU
Abnormal
Abnormal
1
Normal
voltage?
N
Replace Power B/D
Replace Main B/D
Y
Replace Main B/D
7/16
Normal?
Replace Power B/D
Y
N
End
* Please refer to the all cases which
can be displayed on power off mode.
Status Power off List Explanation
"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
Page 73
Standard Repair Process
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Only for training and service purposes
LGE Internal Use Only
Error
symptom
No audio
Screen normal
C. Audio error
No audio/ Normal video
☞A20 ☞A21+A18
Check user
menu >
Speaker off
Off
Y
Cancel OFF
Check audio B+
N
12V of Power
Board
Established
date
Revised date
Normal
voltage
Replace Power Board and repair parts
Y
N
8/16
Check
Speaker
disconnection
Disconnection
Y
Replace Speaker
8
N
Replace MAIN Board
End
Page 74
Standard Repair Process
Copyright ⓒ 2015 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
Check input
signal
-RF
-External Input
signal
Error
symptom
C. Audio error
Wrecked audio/ discontinuation/noise
Established
date
Revised date
→ abnormal audio/discontinuation/noise is same after “Check input signal” compared to No audio
☞A21+A18
Check audio
B+ Voltage (12V)
Y
Normal
voltage?
N
Replace Power B/D
Replace Main B/D
N
Y
Signal
normal?
N
Y
(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
Normal
audio?
9/16
End
Check and fix external device
9
Page 75
Standard Repair Process
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Only for training and service purposes
LGE Internal Use Only
Error
symptom
D. Function error
Remote control & Local switch checking
1. Remote control(R/C) operating error
☞A22
Check R/C itself
Operation
Check R/C Operating
When turn off light
in room
If R/C operate,
Explain the customer
cause is interference
from light in room.
Normal
operating?
N
Check & Replace
Baterry of R/C
operating?
Replace R/C
Y
Normal
Check & Repair
Cable connection
Connector solder
Y
N
Close
Normal
operating?
Y
Close
☞A22
N
Check B+ 3.5V
On Main B/D
Established
date
Revised date
☞A22
Normal
Voltage?
Y
Output signal
N
☞A18
Check 3.5v on Power B/D
Replace Power B/D or
Replace Main B/D
(Power B/D don’t have problem)
Check IR
10/16
Replace
Main B/D
Normal
Signal?
N
Repair/Replace
IR B/D
Y
10
Page 76
Standard Repair Process
Copyright ⓒ 2015 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
Error
symptom
D. Function error
2. MR15(Magic Remocon) operating error
☞A4
Check the
INSTART menu
RF Receiver ver
is “00.00”?
☞A23
Check & Repair
Y
RF assy
connection
☞A4
RF Receiver ver
is “00.00”?
Y
N
Check MR15
itself Operation
N
Close
MR13 operating checking
Normal
operating?
Check & Replace
Battery of MR15
Normal
operating?
Replace
MR13
Y
N
Y
N
Press the
wheel
Close
Established
date
Revised date
Is show ok
message?
Y
Close
Is show ok
message?
Close
Y
Turn off/on the set
N
and press the
wheel
N
Press the back key
11/16
about 5sec
Down load the Firmware
* INSTART MENU14.RF
Remocon Test3. Firmware
download
* If you conduct the loop at 3times, change the M4.
11
Page 77
Standard Repair Process
Copyright ⓒ 2015 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
Error
symptom
3.Wifi operating error
☞A4
Check the
INSTART menu
Wi-Fi Mac value
is “NG”?
☞A24
Check & Repair
Wifi cable
connection
☞A4
Wi-Fi Mac value
is “NG”?
D. Function error
Wifi operating checking
☞A24
N
Y
N
Check the Wifi wafer
Close
1pin
Established
date
Revised date
Normal
Voltage?
Y
Close
N
12/16
Replace
Main B/D
Change the Wifi
Y
assy
12
Page 78
Standard Repair Process
Copyright ⓒ 2015 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
Error
symptom
4.Camera operating error
☞A4
Check the
INSTART menu
D. Function error
Camera Ver.
is “NULL”?
Y
Change the
Camera module
Camera operating checking
☞A25
N
Reconnect the
Camera module
Established
Revised date
Normal
operation?
Y
Close
date
N
13/16
Replace
Main B/D
13
Page 79
Standard Repair Process
Copyright ⓒ 2015 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
Error
symptom
Check
input
signal
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
Y
External Input and
N
Component
Recognition error
HDMI/
DVI, Optical
Recognition error
Established
date
Revised date
14/16
Replace Main B/D
Replace Main B/D
14
Page 80
Standard Repair Process
Copyright ⓒ 2015 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
Error
symptom
Identify
nose
type
E. Noise
Circuit noise, mechanical noise
Circuit
noise
Mechanical
noise
※ Mechanical noise is a natural
phenomenon, and apply the 1st level
description. When the customer does not
agree, apply the process by stage.
※ Describe the basis of the description
in “Part related to nose” in the Owner’s
Manual.
Check
location of
noise
Check location of
noise
Replace PSU
OR
OR
Established
date
Revised date
※ When the nose is severe, replace the module
(For models with fix information, upgrade the
S/W or provide the description)
※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
(For models without any fix information,
provide the description)
15/16
15
Page 81
Standard Repair Process
Copyright ⓒ 2015 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
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
16/16
Stand
dent
Replace stand
16
Page 82
Contents of Standard Repair Process Detail Technical Manual
Copyright ⓒ 2015 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
No. Error symptom Content Page Remarks
1
A. Video error_ No video/Normal
audio
2 Check White Balance value A2
4
A. Video error_ video error /Video
lag/stop
5 TV Version checking method A4
6 Tuner Checking Part A5
A. Video error _Vertical/Horizontal bar,
7
residual image, light spot
8
A. Video error_ Color error
9 Adjustment Test pattern - ADJ Key A8
10
11 Exchange Main Board (2) A-2/5
<Appendix>
12 Exchange Power Board (PSU) A-3/5
Defected Type caused by T-Con/
Inverter/ Module
13 Exchange Module (1) A-4/5
Check LCD back light with naked eye A1
TUNER input signal strength checking
method
TV connection diagram A6
Check Link Cable (EPI) reconnection
condition
Exchange Main Board (1) A-1/5
A3
A7
14 Exchange Module (2) A-5/5
Continue to the next page
Page 83
Contents of Standard Repair Process Detail Technical Manual
Copyright ⓒ 2015 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
No. Error symptom Content Page Remarks
16
B. Power error_ No power
17 Check power input Voltage & ST-BY 3.5V A18
18
19
20
21
22
23 Wifi operation checking method A24
24 Camera operation checking method A25 Not Used
25 E. Etc Tool option changing method A26
B. Power error_Off when on, off
while viewing
C. Audio error_ No audio/Normal
video
D. Function error
Check front display LED A17
POWER OFF MODE checking method A19
Checking method in menu when there is
no audio
Voltage and speaker checking method
when there is no audio
Remote controller operation checking
method
Motion Remote operation checking
method
A20
A21
A22
A23
Continued from previous page
Page 84
Standard Repair Process Detail Technical Manual
Copyright ⓒ 2015 LG Electronics. Inc. All right reserved.
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LGE Internal Use Only
Error symptom
Content
A. Video error_No video/Normal audio
Check LCD back light with naked eye
Established
date
Revised
date
A1
After turning on the power and disassembling the case, check with the naked eye,
whether you can see light from locations.
A1
Page 85
Standard Repair Process Detail Technical Manual
Copyright ⓒ 2015 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
Error symptom
Content
<ALL MODELS>
A. Video error_No video/Normal audio
Check White Balance value
Established
date
Revised
date
A2
Entrymethod
Entry method
1. Press theADJ buttonontheremotecontroller for adjustment.
1. Press the ADJ button on the remote controller for adjustment.
2. Enter intoWhiteBalanceofitem6.
2. Enter into White Balance of item 10.
3. After recordingtheR, G, B (GAIN, Cut) valueofColor Temp
3. After recording the R, G, B (GAIN, Cut) value of Color Temp
(Cool/Medium/Warm), re-enter thevalueafter replacingtheMAIN BOARD.
(Cool/Medium/Warm), re-enter the value after replacing the MAIN BOARD.
A2
Page 86
Standard Repair Process Detail Technical Manual
Copyright ⓒ 2015 LG Electronics. Inc. All right reserved.
Only for training and service purposes