1. When servicing, observe the original lead dress. If a short circuit is found, replace all parts which have been overheated or
damaged by the short circuit.
2. After servicing, see to it that all the protective devices such as insulation barriers, insulation papers shields are properly
installed.
3.After servicing, make the followingleakagecurrent checks to prevent the customerfrom being exposedto shock hazards.
4.When conducting repairs and servicing, donot attempt to modify the equipment, its parts or its materials.
5.When wiring units (withcables, flexible cables or lead wires) are supplied asrepair parts and only one wire or some of thewires havebeenbroken or disconnected, do not attempt torepair or re-wire the units. Replace the entire wiring unit instead.
6.When conducting repairs andservicing, donot twist the Faston connectors but plugthemstraight in or unplug themstraightout.
1.1.1.Leakage Current Cold Check
1.Unplug the AC cord and connect a jumper between thetwo prongs on the plug.
2.Measure the resistance value, with an ohmmeter,between the jumpered AC plug and each exposedmetallic cabinet part on the equipment such asscrewheads, connectors, control shafts, etc. When theexposed metallic part has areturnpathto the chassis, thereading should be8.5Mohm to 13Mohm.When the exposed metal does not have a return path to the chassis, thereading must be .
1.1.2.Leakage Current Hot Check (SeeFigure 1.)
1.Plug the AC cord directly into the AC outlet. Do not usean isolation transformer for this check.
2.Connect a 1.5kohm, 10 watts resistor, in parallel with a
0.15F capacitors, between each exposed metallic parton the set and a good earth ground such as a water pipe,as shown in Figure 1.
3.Use an AC voltmeter, with 1000 ohms/volt or moresensitivity, to measure the potential across theresistor.
4.Check each exposed metallic part, and measure thevoltage at each point.
5.Reverse the AC plug in the AC outlet and repeat each ofthe abovemeasurements.
6.The potential at any point should not exceed 0.75 voltsRMS. A leakage current tester (Simpson Model 229 orequivalent) may be used to make the hot checks, leakagecurrent must not exceed 1/2 milliamp. Incase ameasurement is outside of the limits specified, there isapossibility of a shock hazard, and the equipment shouldbe repaired and rechecked before it is returned to thecustomer.
Figure 1
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TH-42CS510S
2Warning
2.1.Prevention of Electrostatic Discharge (ESD) to 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 typicalES devices are integrated circuits and some field-effect transistors andsemiconductor [chip] components. Thefollowing techniques should be used to help reducethe incidence of component damagecaused by electrostatic discharge(ESD).
1.Immediately before handling any semiconductor component orsemiconductor-equippedassembly, drain off any ESDon yourbody bytouching a known earth ground. Alternatively,obtainand wear a commercially available discharging ESD wrist strap,which should be removedfor 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 onaconductive surface such asaluminum foil, toprevent electrostatic charge builduporexposure of theassembly.
3.Useonly a grounded-tip solderingiron tosolder or unsolder ES devices.
4.Use only an anti-staticsolder removal device. Some solder removal devices not classified as [anti-static (ESD protected)] cangenerate electrical chargesufficient 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. (Mostreplacement ES devices are packaged with leads electrically shorted together by conductive foam, aluminum foil orcomparable conductive material).
7.Immediately before removing the protective material fromtheleads of a replacement ES device, touch the protective materialto the chassis or circuit assembly into which the device will beinstalled.
Caution
Besurenopower is appliedto the chassis or circuit, and observe all other safety precautions.
8.Minimize bodily motions when handling unpackaged replacement ES devices. (Otherwise ham less motion such as thebrushingtogether of your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity (ESD)sufficient to damage an ES device).
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TH-42CS510S
2.2.About lead free solder (PbF)
Note: Lead is listed as (Pb) in the periodic table of elements.
In the information below, Pb will refer to Lead solder, and PbF will refer to Lead Free Solder.
The Lead Free Solder used in our manufacturing process and discussed below is (Sn+Ag+Cu).
That is Tin (Sn), Silver (Ag) and Copper (Cu) although other types are available.
This model uses Pb Free solder in it’s manufacture dueto environmental conservation issues. For service and repair work, we’dsuggest the use of Pb freesolder as well, althoughPb solder may beused.
PCBs manufactured using leadfree solder will have the PbF within a leaf SymbolPbFstamped on the back of PCB.
Caution
•Pb free solder has a higher melting pointthan standard solder. Typically the melting point is 50 ~ 70 °F (30~40°C) higher. Pleaseuse a high temperature solderingiron and set it to 700 ± 20°F(370 ± 10 °C).
•Pb free solder will tend tosplash when heatedtoo high (about 1100 °F or 600 °C).If you must use Pb solder, please completely remove all of the Pb free solderon the pins or solder area before applying Pbsolder. If this is not practical, besureto heat the Pb free solder until it melts, beforeapplying Pb solder.
•After applying PbF solder to double layered boards, please check the component side for excess solder which may flow onto theopposite side. (see figure below)
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TH-42CS510S
3Service Navigation
3.1.Service Hint
Board NameMain DeviceRemarks
A BOARDTUN, OFDM, ADV,sLD8A,STBY EEPRepairable
P BOARDPower SupplyRepairable
GK BOARDFunction SW Repairable
K BOARDLED/ RM/ CATSRepairable
LD BOARDLED DRIVERRepairable
6
4Specifications
Dimensions (W H D) 963 mm 610 mm 247 mm (With Pedestal)
963 mm 566 mm 69 mm (TV only)
Mass
Power sourceAC 220-240 V, 50 / 60 HzRated power consumption 92.0 WStandby power consumption0.20 WVisible screen size (diagonal)106 cm Display resolution1 920 (W) 1 080 (H)PanelLED backlight Liquid Crystal DisplaySound
Speaker output20 W (10 W + 10 W)
Connection terminals
AV INVIDEORCA PIN Type 1 1.0 V[p-p] (75 )(COMPONENT / VIDEO)AUDIO L - RRCA PIN Type 2 0.5 V[rms]
HDMI 1 / 2 inputTYPE AConnectors
ETHERNET10BASE-T/100 BASE-TXUSB 1 / 2DC 5 V, Max. 500 mA [Hi-Speed USB (USB 2.0)]DIGITAL AUDIO OUTPCM / Dolby Digital / DTS, Fibre optic
* The frequency and channel differ depending on the country.
Note
•Design and Specifications aresubject to change without notice. Mass and Dimensions shown are approximate.
•For the information of the open source software, refer to [eHELP] (Support >Licence).
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TH-42CS510S
5Service Mode
5.1.How to enter into Service Mode
5.1.1.Purpose
After exchange parts, check and adjust the contents of adjustment mode.
While pressing [VOLUME ( - )] button of themain unit, press [INFO] buttonof the remotecontrol three times within 2 seconds.
5.1.2.Key command
[1] button...Main items Selection in forward direction[2] button...Main items Selection in reverse direction[3] button...Sub items Selection in forwarddirection[4] button...Sub items Selection in reverse direction[VOL] button...Value of subitems change in forward direction ( +), in reverse direction ( - )
5.1.3.How to exit
Switch off the power with the [POWER] buttonon the main unit or the [POWER] buttonon the remotecontrol.
5.1.4.Contents of adjustment mode
•Value is shown as a hexadecimal number.
•Preset value differs depending on models.
•After entering the adjustment mode, take note ofthe value in eachitem beforestarting adjustment.
Main itemSub itemSample Data
ADJUSTCONTRAST
COLOUR
TINT
SUB-BRT
BACKLGT
H POS
H AMP
V POS
V AMP
A COM
WB-ADJR-GAIN8D
G-GAINAE
B-GAINFF
R-CENT6C
G-RENT80
B-CENTA0
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TH-42CS510S
Main itemSub itemSample Data
OPTIONBootROM
STBY-SET00
EMERGENCYON
CLK MODE00
CLOCKFC7
Y/C DELAYDYNAMIC
OPT 100000000
OPT 211100110
OPT 300001001
OPT 400000000
EDID-CLKHIGH
SRV-TOOL00
DRV CHECKDYNAMIC
5.1.5.Display of SOS History
SOS History (Number of LED blinking) indication.From left side; Last SOS, before Last, three occurrencebefore, 2ndoccurrence after shipment, 1st occurrence after shipment.This indication except 2ndand 1st occurrenceafter shipment will be cleared by [Self-check indication and forced to factoryshipment setting].
5.1.6.Exit
1.Disconnect the ACcordfrom wall outlet.
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5.1.7.Hotel Mode
1. Purpose
Restrict a function for hotels.
2. Access command to the Hotel mode setup menu.
In order to display the Hotel mode setup menu:
While pressing [VOLUME (-)] button of the main unit,
press [AV] button of the remote control three times within
2 seconds.
Set the input, when each time power is switched on.
Selection :
Off,Analogue,DVB-C,DVB-T,AV1,AV2,HDMI1,
HDMI2
•Off: give priorityto a last memory. However,Euromodel iscompulsorily set to TV.
Initial POSSelect programmenumber.
Selection :Off/0 to 99
•Off: give priority to a lastmemory.
InitialVOL LEVELAdjustthe volume when each time power is switched
on.Selection Range :Off/0 to 100
•Off: give priority to a lastmemory.
Maximum Vol LevelAdjust maximum volume.
Range :0 to 100
Button LockSelect local key conditions.
Selection :Off/SETUP/MENU/ALL
•OFF: altogether valid
•SETUP: onlyF-key isinvalid
(Tuning guide (menu) can not be selected.)
•MENU: only F-key is invalid(only Volume/Mute can be selected.)
•ALL: altogether invalid.
Remote LockSelect remote control key conditions.
Selection :Off/SETUP/MENU
•OFF: altogether valid.
•SETUP: only Setup menu isinvalid.
•MENU: Picture/Sound/Setup menu are invalid.
HotelModeUSBBasicallyafter user already setup the hotel mode
according to their criteria, what they need to do is
•insert USB (while in hotel mode)
•choose ‘Copy TV to USB’ to copythe setting intothe USB (a file will be created to storethe hotel mode settingin the USB)
•switch ‘OFF’ the unit
•pull out USB from unit
To copy the hotelmode setting from USB.
•enter hotel mode
•insert USB
•choose ‘Copy USB to TV’
•follow instruction as shown on the units
•once finish, switch ‘OFF; the unit
•pull out USB from unit
Private InformationSelect private information for VIERA Castis Keep or
Reset if Hotel mode is set to [On] when TV power onSelection :Keep/Reset
•Keep: private information for VIERA Cast iskeep
•Reset: private information for VIERA Cast isreset
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TH-42CS510S
6Troubleshooting Guide
Use the self-check function to test the unit.
1. Checking the IIC bus lines
2. Power LED Blinking timing
6.1.Check of the IIC bus lines
6.1.1.How to access
6.1.2.Self-check indication only
Produce TV reception screen, and while pressing [VOLUME ( - )] button on the main unit, press [OK] button on the remote control
for more than 3 seconds.
6.1.3.Self-check indication and forced to factory shipment setting
Produce TV reception screen, and while pressing [VOLUME ( - )] button on the main unit, press [MENU] button on the remotecontrol for more than 3 seconds.
6.1.4.Exit
Disconnect the AC cordfrom walloutlet.
6.1.5.Screen display
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TH-42CS510S
6.2.Power LED Blinking timing chart
1. Subject
Information of LED Flashing timing chart.
2. Contents
When an abnormality occurs, the protection circuit will operate and reset the unit to stand by mode. During this time, the
defective block can be identified by the number of blinking times of the Power LED on the front panel of the unit as follow:
Priority SOS detectionLED Blink
1BL_SOS1
2SUB_3.3V7
3SOUND_SOS9
4SOS8
5GCX/FRC_SOS10
6BE(sLD8/PRO4) SOS12
7Emergency SOS13
8IROM-SOS3
6.3.Method of detecting SOS
1.BL_SOS Detectionbeginning after onesecond pass from ‘BL_ON’=ON
2.TV_SOSDetection beginning after one second pass from ‘AMP_SHUTDOWN’=ON
3.SOUND_SOSDetection beginning ‘AMP_SHUTDOWN’=ON
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TH-42CS510S
6.4.LCD Panel test mode
Purpose:
To find the possible failure point where in LCD Panel or Printed Circuit Board when the abnormal picture is displayed.
How to Enter:
While pressing [VOLUME ( - )] button of the main unit, press [OPTION] button of the remote control three times within 2
seconds.
How to Exit:
Disconnect AC plug from wall outlet.
How to confirm:
If the abnormal pictureis displayed, gointoLCD Panel test mode to display the several test patterns.Andthen, judgeby the followingmethod.Still abnormal pictureis displayed:The cause must be in LCD Panel.Normalpicture is displayed: Thecause must be inA board.
Remarks:
The test pattern is created by the circuit in LCD Panel.In LCD Panel test mode, this test pattern isdisplayed unaffected by signal processing for RF or input signal.If the normalpicture is displayed,LCD Panelmust be okay andthecause of failure must be inA board.
6.5.No Power
First check pointThere arefollowing 2 states of NoPower indication by powerLED.
1.No lit
2.Red is lit thenturns red blinkingafew seconds later. (See 6.2.)
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7Disassembly and Assembly Instructions
7.1.Speaker Assy
Install the two SP UNIT into SP bracket.
TH-42CS510S
NoDescriptionQtyUOMRef. Type
01SPEAKER UNIT2PC
02SCREW(A3/P5/LBRD4)4PC6 ± 1 kgf.cm
03SP BRACKET4PC
04SP. SPONGE4PC
05LED PANEL1PC
06LED PANEL CASE1PC
07K PRINT1PC
08 WIRE(A10-K10)1PC
09 BARRIER1PC
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TH-42CS510S
7.2.Metal MTG Fixing
Fix vesa metal and bottom panel into panel and screw.
Fix pedestal follow below, need screw first before stick rubber foot.
TH-42CS510S
NoDescriptionQtyUOM
01NECK BASE L1PC
02NECK BASE R1PC
03METAL FRAME1PC
04BASE COVER1PC
05RUBBER FOOT6PC
06 RUBBER FOOT1PC
07 BAG (PEDESTAL)1PC
08 M4 12 FLAT HEADSCREW4PC
09 M4 10_FLAT_HEAD_SCREW (BLACK)4PC
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TH-42CS510S
7.6.Back Cover - Screw & Label
1. Fix back cover and screw.
2. Stick side button label, model name plate and serial number label.
NoDescriptionQtyUOMRef. Type
01BACK_COVER1PC
02SIDE BUTTON LABEL1PC
03SCREW(BC9/AV3/CRTL1/SP4)17PC6 ± 1 Kgf.cm
04SCREW(BC3/VESA4)7PC6 ± 1 Kgf.cm
20
7.7.Handling SPEC
■ Moving the LCD module
The module should be handle by two people and hold on that top and bottom long side by both hands without module
warping. Never handle the module with keeping horizontal position when moving the module in order to avoid internal
damage anddeformation. Never drop or hit the module.
■About the work table
When tightening a screw, retention structures are required not to deform theLCD module.
■Moving theTV (Case with a stand)
Holdthe specified parts as shown tostandthe TV upand move it withtwo people.
TH-42CS510S
21
TH-42CS510S
8Measurements and Adjustments
8.1.Voltage chart of A-board
Set A-Board to a dummy set and check the satisfaction with the specified voltage as following table.
Power Supply NameMeasurement PointSpecification
PANEL12VTP409711.3V - 13V
SUB3.3VTP54003.16V - 3.48V
SUB5VTP54204.98V - 5.25V
SUB1.5VTP81011.45V - 1.57V
SUB1.1VTP81001.14V - 1.26V
STB5VTP52004.9V - 5.4V
STB3.3VTP50023.14V - 3.46V
HDMI3.3VTP80003.14V - 3.46V
8.2.Voltage chart of P-board
Set P-Board toadummy load andcheck the satisfaction with the specified voltage as followingtable.
OutputTest Point
24VTP7407<1V 32 ± 1.6V
16VTP7410<1V15.7 ± 0.8V
5VSTP75015.2 ± 0.2V5.2 ± 0.2V
PFCTP7201 or TP7202<340V390V ± 15V
Step 1JK7101 - AC100V/230V OFF.
Supply AC 100V/230 to JK7101 connector in the P-Board. Main power button is OFF.
Step 2TV_SUB_ON P2 connector - pin 8 (TP7416) DC2.5V ON.
Supply DC 2.5V to TV_SUB_ON P2 connector - pin 8 (TP7416), displayed as SWITCH.