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ORDER NO. MTV1001859CEB01 Canada: B61
32 inch Class 720p LCD HDTVModel No. TC-32LX24Chassis: LA03
TABLE OF CONTENTSPAGE PAGE
1 Safety Precautions----------------------------------------------- 31.1. General Guidelines---------------------------------------- 3
1.1.1. Leakage Current Cold Check---------------------- 31.1.2. Leakage Current Hot Check (See Figure
2.2. About lead free solder (PbF)---------------------------- 53 Service Navigation ----------------------------------------------- 6
3.1. Service Hint ------------------------------------------------- 63.2. Applicable signals ----------------------------------------- 6
4 Specifications ----------------------------------------------------- 75 Service Mode ------------------------------------------------------ 8
5.1. How to enter into Service Mode ----------------------- 85.1.1. Key command ----------------------------------------- 85.1.2. Contents of adjustment mode --------------------- 85.1.3. How to exit---------------------------------------------- 8
5.2. SRV-TOOL -------------------------------------------------- 95.2.1. How to access ----------------------------------------- 9
5.2.2. Display of SOS History ------------------------------95.2.3. POWER ON TIME/COUNT-------------------------95.2.4. Exit --------------------------------------------------------9
5.3. Hotel mode ------------------------------------------------ 106 Troubleshooting Guide --------------------------------------- 11
6.1. Check of the IIC bus lines------------------------------ 116.1.1. How to access --------------------------------------- 116.1.2. Exit ------------------------------------------------------ 116.1.3. Screen display --------------------------------------- 116.1.4. Check Point------------------------------------------- 11
6.2. Power LED Blinking timing chart --------------------- 126.3. No Power--------------------------------------------------- 12
7 Disassembly and Assembly Instructions--------------- 137.1. AC Cord ---------------------------------------------------- 137.2. AC Cord Installation ------------------------------------- 147.3. PCB and Clamper Assembly-------------------------- 157.4. VESA Metal Installation -------------------------------- 167.5. Control Panel Assembly-------------------------------- 177.6. Side AV Bracket Assembly ---------------------------- 187.7. Side AV Assembly Installation ------------------------ 19
13 Exploded View and Replacement Parts List ----------- 6213.1. Exploded View and Mechanical Replacement
Parts List --------------------------------------------------- 6213.2. Electrical Replacement Parts List -------------------- 62
13.2.1. Replacement Parts List Notes ------------------- 6213.2.2. Electrical Replacement Parts List --------------- 63
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TC-32LX24
1 Safety Precautions1.1. General Guidelines
1. When servicing, observe the original lead dress. If a short circuit is found, replace all parts which have been overheated ordamaged by the short circuit.
2. After servicing, see to it that all the protective devices such as insulation barriers, insulation papers shields are properlyinstalled.
3. After servicing, make the following leakage current checks to prevent the customer from being exposed to shock hazards.4. When conducting repairs and servicing, do not attempt to modify the equipment, its parts or its materials.5. When wiring units (with cables, flexible cables or lead wires) are supplied as repair parts and only one wire or some of the
wires have been broken or disconnected, do not attempt to repair or re-wire the units. Replace the entire wiring unit instead.6. When conducting repairs and servicing, do not twist the Faston connectors but plug them straight in or unplug them straight
out.
1.1.1. Leakage Current Cold Check1. Unplug the AC cord and connect a jumper between the
two 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 a return path to the chassis, thereading should be 100 Mohm and over.When the exposed metal does not have a return path to the chassis, the reading 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 a0.15μF 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 the resistor.
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 above measurements.
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. In case ameasurement is outside of the limits specified, there is apossibility of a shock hazard, and the equipment shouldbe repaired and rechecked before it is returned to thecustomer.
Figure 1
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TC-32LX24
2 Warning2.1. Prevention of Electrostatic Discharge (ESD) to Electrostatically
Sensitive (ES) DevicesSome semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are calledElectrostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field-effect transistors andsemiconductor [chip] components. The following techniques should be used to help reduce the incidence of component damagecaused by electrostatic discharge (ESD).
1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off any ESD on yourbody by touching a known earth ground. Alternatively, obtain and wear a commercially available discharging ESD wrist strap,which should be removed for 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 asaluminum 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 solder removal device. Some solder removal devices not classified as [anti-static (ESD protected)] can
generate electrical charge 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 orcomparable conductive material).
7. Immediately before removing the protective material from the leads of a replacement ES device, touch the protective materialto 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 ham less motion such as the
brushing together 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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TC-32LX24
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 due to environmental conservation issues. For service and repair work, we’dsuggest the use of Pb free solder as well, although Pb solder may be used.
PCBs manufactured using lead free solder will have the PbF within a leaf Symbol PbF stamped on the back of PCB.Caution
• Pb free solder has a higher melting point than standard solder. Typically the melting point is 50 ~ 70 °F (30~40 °C) higher. Pleaseuse a high temperature soldering iron and set it to 700 ± 20 °F (370 ± 10 °C).
• Pb free solder will tend to splash when heated too high (about 1100 °F or 600 °C).If you must use Pb solder, please completely remove all of the Pb free solder on the pins or solder area before applying Pbsolder. If this is not practical, be sure to heat the Pb free solder until it melts, before applying 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)
Suggested Pb free solderThere are several kinds of Pb free solder available for purchase. This product uses Sn+Ag+Cu (tin, silver, copper) solder.However, Sn+Cu (tin, copper), Sn+Zn+Bi (tin, zinc, bismuth) solder can also be used.
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TC-32LX24
3 Service Navigation3.1. Service Hint
3.2. Applicable signalsInput signal that can be displayed* Mark: Applicable input signal for Component (Y, PB, PR), HDMI and PC
Note:• Signals other than above may not be displayed properly.• The above signals are reformatted for optimal viewing on your display.
Board Name FunctionA-Board Rear Terminal, AV Switch, MCU, Audio & Video
Processor, LVDS, TunerV-Board Remote Receiver, LEDP-Board Power (AC/DC), DC-DCControl Panel Assy Control Button, Power switch, (K BOARD)
FEATURES 3D Y/C FILTER, CLOSED CAPTION,V-Chip, HDAVI Control 5Vesa compatible, VIERA IMAGE VIEWER
Dimensions (W × H × D)Including TV stand 31.5” × 21.7” × 8.6” (798 mm × 551 mm × 217 mm)TV Set only 31.5” × 20.2” × 3.3” (798 mm × 511 mm × 83 mm)
MassIncluding TV stand 24.3 lb. (11.0 kg) NETTV Set only 21.0 lb. (9.5 kg) NET
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TC-32LX24
5 Service Mode5.1. How to enter into Service ModeWhile pressing [VOLUME ( - )] button of the main unit, press [INFO] button of the remote control three times within 2 seconds.
5.1.1. Key command [1] button...Main items Selection in forward direction [2] button...Main items Selection in reverse direction [3] button...Sub items Selection in forward direction [4] button...Sub items Selection in reverse direction [VOL] button...Value of sub items change in forward direction ( + ), in reverse direction ( - )
5.1.2. Contents of adjustment mode• Value is shown as a hexadecimal number.• Preset value differs depending on models.• After entering the adjustment mode, take note of the value in each item before starting adjustment.
5.1.3. How to exitSwitch off the power with the [POWER] button on the main unit or the [POWER] button on the remote control.
Main item Sub item Sample Data RemarkADJUST CONTRAST 000
COLOR 4CTINT 00SUB-BRT 808BACKLGT 22EB-Y-G 34R-Y-A 00
OPTION Boot ROM Factory Preset.STBY-SET 00EMERGENCY ONCLK MODE 00CLOCK 0E4
RM-SET 00 Fixed.SRV-TOOL 00 See next.
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TC-32LX24
5.2. SRV-TOOL5.2.1. How to access
1. Select [SRV-TOOL] in Service Mode.2. Press [OK] button on the remote control.
5.2.2. Display of SOS HistorySOS History (Number of LED blinking ) indication.From left side; Last SOS, before Last, three occurrence before, 2nd occurrence after shipment, 1st occurrence after shipment.This indication except 2nd and 1st occurrence after shipment will be cleared by [Self-check indication and forced to factoryshipment setting].
5.2.3. POWER ON TIME/COUNTNote : To display TIME/COUNT menu, highlight position, then press MUTE for 3sec.Time : Cumulative power on time, indicated hour : minute by decimalCount : Number of ON times by decimalNote : This indication will not be cleared by either of the self-checks or any other command.
5.2.4. Exit1. Disconnect the AC cord from wall outlet.
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TC-32LX24
5.3. Hotel mode1. Purpose
Restrict a function for hotels.2. Access command to the Hotel mode setup menu
In order to display the Hotel mode setup menu, pleaseenter the following command (within 2 second). [TV] : Vol. [Down] + [REMOTE] : INPUT (3 times)
Then, the Hotel mode setup menu is displayed.
3. To exit the Hotel mode setup menu Disconnect AC power cord from wall outlet.
4. Explain the Hotel mode setup menu
item FunctionMode Select hotel mode off/onInput Select input signal modes.
Set the input, when each time power isswitched on.Selection:-/RF/Component/HDMI1/HDMI2/HDMI3/Video1/Video2/PC
• Off: give priority to a last memory. Channel Select channel when input signal is RF.
Set the channel, each time power is switchedon.Selection: Any channel number or [-]. [-] means the channel when turns off.
Volume Adjust the volume when each time power isswitched on.Range: 0 to 100
Vol. Max Adjust maximum volume.Range: 0 to 100
OSD Ctrl Restrict the OSD.Selection:OFF/PATTERN1
• OFF: No restriction• PATTERN1: restriction
FP Ctrl Select front key conditions.Selection: Off/Pattern1/All
• Off: altogether valid.• Pattern1: only input key is valid.• All: altogether invalid.
Pow Ctrl Select POWER-ON/OFF condition when ACpower cord is disconnected and then con-nected. OFF: The same condition when AC powercord is disconnected. ON: Forced power ON condition.
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TC-32LX24
6 Troubleshooting GuideUse the self-check function to test the unit.
1. Checking the IIC bus lines2. Power LED Blinking timing
6.1. Check of the IIC bus lines6.1.1. How to accessSelf-check indication only:Produce TV reception screen, and while pressing [VOLUME ( - )] button on the main unit, press [OK] button on the remote controlfor more than 3 seconds.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.
6.1.2. ExitDisconnect the AC cord from wall outlet.
6.1.3. Screen display
6.1.4. Check PointConfirm the following parts if NG was displayed.
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TC-32LX24
6.2. Power LED Blinking timing chart1. 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, thedefective block can be identified by the number of blinking times of the Power LED on the front panel of the unit as follow:
6.3. No PowerFirst check pointThere are following 2 states of No Power indication by power LED.
1. No lit2. Red is lit then turns red blinking a few seconds later. (See 6.2.)
Blinking times Contents BOARD 1 BACK LIGHT_SOS P BOARD3 PANEL POWER_SOS A BOARD4 DTV12V_SOS P/A BOARD7 SUB 3.3V_SENSE A BOARD9 SOUND SOS A BOARD
13 EMERGENCY_SOS A BOARD
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TC-32LX24
7 Disassembly and Assembly Instructions7.1. AC Cord
TREATMENT AC CORD.
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TC-32LX24
7.2. AC Cord Installation1. Put on the AC CORD BRACKET on the CABINET.2. Fix the AC CORD BRACKET with SCREW.3. Insert AC CORD connector into P-PCB connector.4. Clamp the AC CORD.5. Insert AC CORD bushing into the AC CORD BRACKET.6. AC code is pushed into the bottom of the bracket.
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TC-32LX24
7.3. PCB and Clamper Assembly1. Stick 2pcs gasket at A PCB SHIELD BTM follow spec.2. Put the P-PCB, A-PCB on the A-PB-MTG METAL.3. Fix them with SCREWS.4. Setting the CLAMPER.5. Insert inv-lead in P PCB.
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TC-32LX24
7.4. VESA Metal Installation1. Put VESA METAL on the METAL SUPPOUT.2. Fix them with SCREW.
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7.5. Control Panel Assembly1. Wire connecting.2. Assemble K-PRINT, CONTROL BUTTON, CONTROL PANEL BRACKET.3. Fix them with SCREWS.
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7.6. Side AV Bracket AssemblyStick the SIDE AV INDI. SHEET on the SIDE AV BRACKET.
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7.7. Side AV Assembly Installation
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7.8. LCD Panel InstallationPut LCD PANEL on the CABINET.
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7.9. LCD MTG Installation 11. Put clamper on METAL BRACKET BOTTOM.2. Put METAL BRACKET BOTTOM on the LCD PANEL.3. Fix them with screw.4. Wire dressing and lock CLAMPER.
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TC-32LX24
7.10. LCD MTG Installation 21. Put panel lvds BARRIER & METAL BRACKET TOP-L & METAL BRACKET-LCD-SIDE on the LCD PANEL.2. Fix them with screw.
22
TC-32LX24
7.11. PB MTG Installation1. Stick Gasket on METAL BRACKET PCB-AL.1. Put METAL BRACKET PCB-A S on the LCD PANEL.2. Fix them with SCREW.
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TC-32LX24
7.12. Metal Support Installation1. Metal Support on the LCD PANEL.
(insert positioning. → )2. Fix them with SCREW.
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7.13. Bracket IP Installation1. Put Bracket IP & METAL BRACKET-PCB-P_Son the LCD PANEL.
(insert positioning. → )2. Fix them with SCREW.
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TC-32LX24
7.14. LED Panel Installation and Fitting1. Fix LED PANEL on CABINET.2. Insert an A10-V10 lead connector in V-Print.3. Put V-PCB on LED PANEL.4. Fix LED PANEL ass’y with SCREW.5. Insert the CLAMPER.
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TC-32LX24
7.15. Speaker Installation1. Fix SP RUBBER BUSH on SP UNIT.2. Put SP BRACKET on the CABINET.3. Fix them with SCREW.4. Set the SPEAKER UNIT.
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TC-32LX24
7.16. EMI Spec (LVDS)1. Put LVDS HARNESS to LCD PANEL with PET/AL-TAPE.
i → ii → iii → iv2. Put PET/AL-TAPE on LCD PANEL.
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TC-32LX24
7.17. Back Cover Assembly 1. Put VESA METAL (BC) on the BACK COVER.2. Fix them with SCREWS.
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TC-32LX24
7.18. Pedestal 1Put BASE PLATE to PEDESTAL COVER with screws.
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7.19. Pedestal 2Put STAND MTG to STAND MTG SPACER with screws.
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TC-32LX24
7.20. Pedestal 31. Lay down the unit so that the rear cover faces upward.2. Remove the 4 screws.3. Remove the pedestal.
7.21. Rear cover1. Remove the 15 screws (A).2. Remove the 2 screws (B),3. Remove the rear cover.
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TC-32LX24
8 Measurements and Adjustments8.1. Voltage chart of A-board
8.2. Voltage chart of P-board
8.3. Picture level adjustment (RF)
VOLTAGE TEST POINT SPECIFICATION (Reception state)
SUB6V TP2767 6.1 ± 0.3 VTCON13.7V TP7019 12.5 ± 2 V only miniLVDS modelTCON2.5V TP4826 2.5 ± 0.12 VTCON31V TP7013 31 ± 3.1 VTCON-6V TP7014 -5.7 ± 0.6 V
VOLTAGE TEST POINT SPECIFICATION (Reception state)
TP
P32V TP7503 31 ± 2.5 V J10717V TP7502 18 ± 2 V J115
DTV12V TP7501 12.2 ± 0.6 V J21TUNER6V TP7601 6.1 ± 0.3 V D7603K
Instrument Name Remarks1. REMOTE TRANSMITTER2. Ex. Signal (Sprit color bar)
Adjustment or Inspection Procedure Remarks
<procedure>1. Receive the Sprit color bar.
(Screen mode: ZOOM or FULL Picture mode: DYNAMIC AI: OFF AI Picture: OFF) *BACK LIGHT +30
<Inspection>1. Enter Service mode, and select MAIN_ADJ PICTURE.
Volume UP/DOWN key makes GAIN displayed under PICTURE to set.Pushing the remote controller [OK] key for about 3 seconds, GAIN is suited to the adjustment value automatically.
(The Sprit Color Bar Pattern)
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TC-32LX24
8.4. Picture level adjustment (VIDEO)
8.5. Picture level adjustment (YUV)
Instrument Name Remarks1. REMOTE TRANSMITTER2. Video signal generator (100% Color bar)
Adjustment or Inspection Procedure Remarks
<procedure>1. Receive 100% Color bar.
(ASPECT: ZOOM or FULL, Picture mode: VIVID, AI Picture: OFF)* BACK LIGHT MAX VALUE
<Inspection>1. Enter Service mode, and select ADJUST CONTRAST.
Volume UP/DOWN key makes GAIN value displayed on the right of CONTRAST to set.Pushing the remote controller [OK] key for about 3 seconds, GAIN is suited to the adjustment value auto-matically.
Instrument Name Remarks1. REMOTE TRANSMITTER2. Component Video signal generator (100% Color bar 1080i)
Adjustment or Inspection Procedure Remarks
<procedure>1. Receive 100% Color bar.
(ASPECT: ZOOM or FULL, Picture mode: VIVID, AI Picture: OFF)* BACK LIGHT MAX VALUE
<Inspection>1. Enter Service mode, and select ADJUST CONTRAST.
Volume UP/DOWN key makes GAIN value displayed on the right of CONTRAST to set.Pushing the remote controller [OK] key for about 3 seconds, GAIN is suited to the adjustment value auto-matically.
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35
9 Block Diagram9.1. Main Block Diagram
**
(LED:7TIMES)
(LE
D:1
TIM
ES
)
( LE
D:3
TI M
ES
)
A11
(SIDE)
SUB1.2V DET
REMOTE IN
CONTROL
RELAY
NEUTRAL
SUB5V
SPEAKER(L)
SOS
SIF_OUT
DVDD2.5V
RECTIFIER
VOLTAGE
AVDD13.7V
Y/PB/PR
POWER LED(R)
C.A.T.S. SENSOR
PANEL
INV
_P
WM
AUDIO
STB+3.3V
INV_ON
TUNER
LIVE
A04
L/R
DCDC
OUT
SUBON/OFF
PROCESSVOLTAGERECTIFIER
SUB1.2V
POWER LED
SUB1.2V
STANDBYVOLTAGERECTIFIER
AC CORD
MPU
DCDCAVDD13.7V
DV
DD
2.5
V
12V
BACK LIGHT
AV
DD
13.7
V
DVDD2.5V
STB5V
PANEL
FRONT END
F15V
SO
UN
D15V
POWERCONTROL
INV
_O
N
AUDIO
V
AG
_S
OS
TMDS DATA
STB5V
Nile-TCON
INVERTERPOWERCONTROL
CURCUIT
INV
_P
WM
SUB1.8VDCDC
NANDFLASH
P2 SUB3.3V
SUB1.8V
VC
ON
31V
AV SW
INV_SOS
32V
DDR2
SD
0
VIDEO1
STB5V
HDMI I/F
INV_PWM
HO
T S
TA
RT
(DA
C_E
NB
)
STB5V
D/A
INV
_S
OS
OP
TIC
AL O
UT
VR
EF
_1-1
2
DCDC
SPEAKER(R)
P1
ERROR DET
EEPROM
PFCCONTROL
OVER
VO
FF
2-6
V
REMOTE RECEIVER
A
C.A.T.S. SENSOR
17V
K02
V10
DTV12V
HDMI3
LV
DS
DA
TA
INV
_O
N
HDMI2
C.A.T.S. SENSOR
OPTICAL
AMP
PC
SD CARD
STB3.3V
SLOT
ANALOG-ASIC
TMDS DATA
DCDC
R
IFD_OUT
STB+3.3V
SD CARD DATA
V
PROCESSOR
(SIDE)
COMP1
CONTROLPANEL ASSY
SD
P5,P6.P7,P8
SD CARD DATA
EEPROM
SOSL/R
LVDS DATA
RECEIVER
SU
B_O
N
A03
VOLTAGE
DIGITAL SIGNAL PROCESSOR
DROP
LCD PANEL
SUB5V
LVDS DATA
POWER LEDR/G/B/H/V
VIDEO2
L
TMDS DATA
SUB5V
RECTIFIER
SOUND15V
V
DTV12V
A10
L/R
SUB_ON
HDMI1
A22
SUB5V
LINEFILTER
KEYSCAN3
V
CPU BUSI/F
OPTICAL AUDIO OUT
PA
NE
L P
OW
ER
SO
S
REMOTE RECEIVER
SUB 3.3V SENSE
INV
_S
OS
CPU BUS
SUB1.8V DET
KEYSCAN1
SUB5V DET
(LED:7TIMES)
(LE
D:1
TIM
ES
)
(LE
D:3
TIM
ES
)
P POWER SUPPLY
TC-32LX24
36
9.2. Block Diagram (1/2)
(LE
D:3
TIM
ES
)
(LED:3TIMES)
+
NE
ED
HO
LD
ER
SUB5V
SUB5V
Q5614
D4832Q5613 Q5612
STB5V
AVDD13.7V
DTV12V
D2500
PA4800
D5603
D5600
TCON12V
DVDD2.5V
Q5616
Q4703
SUB3.3V
Q4702
D5674
DTV12V
STB1.2V
D5673
STB3.3V
D5605
AVDD13.7V
STB5V
D5672
SUB1.2V
Q5602
Q5615
STB5V
Q4704
D2753
SOUND15V
D4833
Q5495D5629
SUB3.3V
STB3.3V
SUB5V
D4831
SUB1.8V
D4830
D5604
TP7601
Q7754
PA7501
TP7502
Q7703
D7751
D7503TP7503
D7752
D7504
Q7702
D7404
T7201
D7501
F7001
D7603
CF7101
**
TP7501
C.A.T.S.SENSOR
REMOTE IN
R_LED_ON
7
36
9
A22
12
IICTCON
11
4
+2.5V
SUB1.8V
+1.8V
LVDS DATA
IC5606
REMOTE IN
1
POWER LED(R)
SN2500
REMOTERECEIVER
RM2500
VOLTAGE
POWER LED
OVER
1
3
REMOTE RECEIVER
INV_ON
INV_PWM
15
LVDS DATA
8
LVDS DATA
2
D/A
17
SUB_ON
+5V
INV_ON
IC5610
KEYSCAN1
4
RESET
KEYSCAN3
DTV12V
KEYSCAN1
PA
NE
L P
OW
ER
SO
S
PANEL
INV
KEYSCAN3
1
PANEL
5
A10
C.A.T.S. SENSOR
V10
C.A.T.S.
5
7
12
DVDD2.5V
LEVEL SHIFT
INV LED
VOFF2-6V
PANEL_LED_ON
AG_SOS
6
7
6
VCON31V
AVDD13.7V
RELAY
3
IC4802
5
IC4800
38
VDD25_EN
Q2761
PA
NE
L_V
CC
_O
N
48 IICTCON
HOT START(DAC_ENB)
+13.7V
-6V GEN.Q4804,05
Q4803
IIC1
ANALOG-ASIC
5
3
STB+3.3V
SOUND15V
C.A.T.S.
MCU_RESET
INV_SOS
7
IC5601
INV_PWM
KEYSCAN3
SOS
A03
IIC1
SUB1.8V DET
CONTROL
TV_SUB_ON
INV_SOS
VREF_1-12
3
49
52
2
PANEL POWER SOS
14TUNER_6V
STB5V
BACK LIGHT
+1.2V
MCU_RESET
3.3V
SUB1.2V
9
SUB5V DET
DTV12V
12V DET
PANEL_VCC_ON
SUB1.2V DET
PANEL_VCC_ON
Q2760
7
4
INVERTERCIRCUIT
VOLTAGEDROP
Q4770,71
IC5605
VREF_1-12
ERROR DET
SOS
4
IC4700
2
SUB5V
STB+1.2V
A04
STB+3.3V
ON/OFF
11
K02
SUB+5V
IC5608
4
T5AH AC250V
LF7003
12
7
PFC CONTROL
STB5V
IC7301
1
LIVE
STBERROR DET
2
Q7701
Q7201
LF7002
DRV1
RL7101
P8
P1
IC7401
AC CORD
STB
CONT.
RESONANCE
1
PC7701
IC7800
2
INV_ON
LD
RV
LINEFILTER
NEUTRAL
T7301
Q7801,02Q7803,04
17V
CCFLINVERTERCURCUIT
VG
H
IC7601
VG
L
PC7401
T7801
2
OVERVOLTAGEDET
1
T7803
1
9
P+32V
HIGH-VOLTAGEPOWERSUPPLY
INVERTERPOWERCONTROL
IC7501
TUNER_6V
D7102
RL7102
Q7301,Q7302
T7802
PHOTO COUPLER
SUBON/OFF
PRO_H
11
412V
IC7201
RECTIFIER
1
INV_PWM
Q7750-53
POWERCONTROL
PHOTO COUPLER
5
T7401
F15VERROR DET
13
HD
RV
P6
PC7301
P7
RECTIFIERD7407
14
RL7103
OVP
T7804
IC7801INV_SOS
2
1
PRO_L
4
OVERVOLTAGEDET
P+32V
DRV2
CONTROL
P5
2
PHOTO COUPLER
P2
12V
(LE
D:3
TIM
ES
)
(LED:3TIMES)
TC-32LX24
37
9.3. Block Diagram (2/2)
(LE
D:1
TIM
ES
)
( LE
D:7
TI M
ES
)
P
STB3.3V
SUB1.8V
STB3.3V
SUB5V
SUB1.2V
SUB3.3V
VJ5
50
0
STB1.2V
SUB3.3V
SUB5V
SUB3.3V_SD
SUB3.3V
SUB3.3V
X8000
SOUND15V
STB3.3V
Q5605
ST
B3
.3V
KE
Y3
/ST
BY
_L
ED
_O
N
IIC1
SD
R(+
)S
PE
AK
ER
SPEAKER_R
X O
UT
SBO0SBI0
R(-
)
SPEAKER_L
L(-
)
4
DD
C IIC
AUDIO AMP
3
TU8302
IC5613TM
DS
DA
TA
CL
OC
K
TUNER
DD
C_
A_
IIC
IC5609
JK4501
LVDS DATA
IFD
_O
UT
2
PC
_R
LVDS DATA
TV
_V
JK2108A
VCC
DD
C5
V_
C
AF
T
RX
2
D1
_Y
IIC0_TU
EEPROM
EEPROM
128MbitNOR FLASH
VSB_I/F
D2142
SD
DA
TA
:4b
itS
D C
AR
DI/F
HDMI I/F RECEIVER
PROCESSOR
D1
_L
VIDEO1
HD
MI_
CE
C
D1
_R
DO
_U
AR
T_
TX
/RX
DO
_U
AR
T_
TX
/RX
+5
V
15V
IFD
_O
UT
1
SU
B3
.3V
_H
DM
I
2
D1
_P
B
5V
IC2106
A11
JK2101A
HDMI IN 2
IF_
AG
C
PC
DD
C_
B_
IIC
3.3V
(SIDE)
TM
DS
DA
TA
CL
OC
K
PO
WE
R L
ED
(R)
VD
D2
5_
EN
C.A
.T.S
. S
EN
SO
R
V2
_L
TV
PA
NE
L_
LE
D_
ON
VIDEO2
PA
NE
L_
LE
D_
ON
V
AGC
AFT
HDMI IN 3
3.3V
MCU_IIC
VINP_VSB
2
VINN_VSB
SP
DIF
AF
T
OPTICAL
9
3
OUT
VD
D2
5_
EN
DD
C IIC
L/R
ST
B1
.2V
MC
U_
RE
SE
T
3.3V
DDR2 #0
8
3.3V
DD
C IIC
Q8
00
5
INVERTER
5
IC8850
VIDEO1
IIC2
LV
DS
3.3
V
PA
NE
L_
VC
C_
ON
PC
_B
4 PA
NE
L_
VC
C_
ON
INV
_S
OS
DD
C5
V_
A
INV
_O
N
INV
_P
WM
HD
MI_
CE
C
7
INV
_P
WM
SBO0SBI0
X I
N
JK4500
1
SBO0SBI0
L/R
SU
B3
.3V
IIC2
SU
B1
.8V
HO
T S
TA
RT
(DA
C_
EN
B)
V2
_R
TV
SU
B O
NT
V S
UB
ON
CP
U B
US
I/F
SO
S
IIC1
HO
T S
TA
RT
(DA
C_
EN
B)
VID
EO
V1
_L
SO
S
RE
MO
TE
IN
SP
EA
KE
R
SIF
_O
UT
MC
U_
RE
SE
T
PO
WE
R L
ED
(R)
D1
_P
R
ANT IN
C.A
.T.S
.
RX
3
(SIDE) SD CARDCOMP1JK8502
PC
_G
IC8002
DD
C5
V_
B
A18
TM
DS
DA
TA
CL
OC
K
DD
C_
C_
IIC
V1
_V
FORFACTORYUSE
JK2102B
PC
_H
L(+
)
IC2110
+5
V
IIC0_TUIIC1
DD
R I/F
1
IIC2MCU_IIC
RX
1
IIC1
Y/PB/PR
TEMP SENSOR
IC8001
HD
MI_
CE
CV2
_V
HDMI IN 1
V1
_R
FORFACTORYUSE
SU
B1
.2V
A19
IIC0
CLK
3.3V
MCU_IIC
SIF_IN
IC5607
IC4701
Nile-TCON
AGC
SUB5VTUNER
SIF
AV SW
INV
_O
N
HD
MI_
CE
C
INV
_S
OS
R/G/B
JK4502
PC
_V
+5
V
R_
OU
T
SUB3.3V_A
SU
B 3
.3V
SE
NS
E
H/V
OP
TIC
AL
AU
DIO
OU
T
MPU
6
MC
U_
RE
SE
T
L/R
AUDIO
IC8502
KE
YS
CA
N1
PC
SD
IN
KE
YS
CA
N1
L_
OU
T
KE
YS
CA
N3
HD
MI_
CE
C_
IN_
OU
T
IC8503
FRONT END
COMP1
L/R
IIC2
V
LVDS_OUT
L/R
VIDEO2
FORFACTORYUSE
IC8004
V
A17
IIC0
IIC1
RE
MO
TE
IN
(LE
D:1
TIM
ES
)
(LE
D:7
TIM
ES
)
TC-32LX24
10 Wiring Connection Diagram1. Wiring No.1 ~ No.52. Remove dust of terminal of LVDS and PB connector. (by ion blow).3. Insert LVDS into Pos.A21 or A22.
WireClamper
1 2 3 4 5 6 7 8 9 10
No.1 A03 - P2
No.2 A04 - K02
No.3 A10 - V10
No.4 A11 - SP (L)
No.5 A11 - SP (R)
38
TC-32LX24
39
11 Schematic Diagram11.1. Schematic Diagram Notes
TC-32LX24
40
11.2. A-Board (1/11) Schematic Diagram
6
5
4
3
2
1
A B C D E F G H I
TC-32LX24
41
11.3. A-Board (2/11) Schematic Diagram
6
5
4
3
2
1
A B C D E F G H I
TC-32LX24
42
11.4. A-Board (3/11) Schematic Diagram
6
5
4
3
2
1
A B C D E F G H I
TC-32LX24
43
11.5. A-Board (4/11) Schematic Diagram
6
5
4
3
2
1
A B C D E F G H I
TC-32LX24
44
11.6. A-Board (5/11) Schematic Diagram
6
5
4
3
2
1
A B C D E F G H I
TC-32LX24
45
11.7. A-Board (6/11) Schematic Diagram
6
5
4
3
2
1
A B C D E F G H I
TC-32LX24
46
11.8. A-Board (7/11) Schematic Diagram
6
5
4
3
2
1
A B C D E F G H I
TC-32LX24
47
11.9. A-Board (8/11) Schematic Diagram
6
5
4
3
2
1
A B C D E F G H I
TC-32LX24
48
11.10. A-Board (9/11) Schematic Diagram
6
5
4
3
2
1
A B C D E F G H I
TC-32LX24
49
11.11. A-Board (10/11) Schematic Diagram
6
5
4
3
2
1
A B C D E F G H I
TC-32LX24
50
11.12. A-Board (11/11) Schematic Diagram
6
5
4
3
2
1
A B C D E F G H I
TC-32LX24
51
11.13. K-Board Schematic Diagram
6
5
4
3
2
1
A B C D E F G H I
TC-32LX24
52
11.14. P-Board Schematic Diagram
6
5
4
3
2
1
A B C D E F G H I
TC-32LX24
53
11.15. V-Board Schematic Diagram
6
5
4
3
2
1
A B C D E F G H I
TC-32LX24
12 Printed Circuit Board12.1. A-BoardA-Board (A Side)TNPH0856
13 Exploded View and Replacement Parts List13.1. Exploded View and Mechanical Replacement Parts ListPlease click the radio button for "Diagrams ll/Parts List" on the menu bar.
13.2. Electrical Replacement Parts List13.2.1. Replacement Parts List Notes