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3-2. In case of does’t display the screen into specific mode

(1) Symptom

●

The screen does not become the display from specific input mode

(RF, AV, Component, RGB, DVI).

(2) Check follow

●

Check the all input mode should become normality display.

(3) Abnormal display in RF mode

(4) Abnormal display in AV mode

Is the Tuner normal?

Is IC103 (Switch)

CXA2069Q good?

Is the Tuner Cable

connected well?

Reset cable.

Yes

No

No

Yes

Is the Video Decoder

IC302 UPD64011

good?

Replace Tuner

No

Are the Input voltage, IIC Comm.

and CVBS outputs good?

Yes

Are the Input voltage, IIC

Comm. and HV sync good?

No

Replace IC103

No

Are the Input voltage, IIC

Comm. and HV sync good?

No

Replace IC302

No

Is IC103 (Switch)

CXA2069Q good?

Yes

Is the Video Decoder

IC302 UPD64011

good?

Is normal the Input voltage, IIC

Communication and HV sync?

No

Replace IC103

No

Are the Input voltage, IIC

Comm. and HV sync good?

No

Replace IC302

No

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Содержание 32LC2DC

Страница 1: ...ICE MANUAL CAUTION BEFORE SERVICING THE CHASSIS READ THE SAFETY PRECAUTIONS IN THIS MANUAL CHASSIS LA51D FACTORY NAME 32LC2DC MODEL 32LC2DC website http biz LGservice com e mail http www LGEservice com techsup html ...

Страница 2: ... 2 CONTENTS CONTENTS 2 PRODUCT SAFETY 3 SPECIFICATION 6 ADJUSTMENT INSTRUCTION 10 TROUBLE SHOOTING 15 BLOCK DIAGRAM 22 WIRING DIAGRAM 23 EXPLODED VIEW 24 REPLACEMENT PARTS LIST 26 SVC SHEET ...

Страница 3: ...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 ...

Страница 4: ...vely 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 ground...

Страница 5: ...not shiny reheat them and if necessary apply additional solder Fuse and Conventional Resistor Removal Replacement 1 Clip each fuse or resistor lead at top of the circuit board hollow stake 2 Securely crimp the leads of replacement component around notch at stake top 3 Solder the connections CAUTION Maintain original spacing between the replaced component and adjacent components and the circuit boa...

Страница 6: ...1 This spec sheet is applied all of the 32 LCD TV with LA51D chassis 1 2 Not included spec and each product spec in this spec sheet apply correspondingly to the following each country standard and requirement of Buyer 2 Specification Each part is tested as below without special appointment 2 1 Temperature 20 5 C 2 2 Relative Humidity 65 10 2 3 Power Voltage Standard input voltage 110 240V 50 60Hz ...

Страница 7: ...to LCD SPEC 4 Color coordinate RED X 0 640 0 03 Y 0 341 0 03 GREEN X 0 287 0 03 Y 0 610 0 03 BLUE X 0 146 0 03 Y 0 069 0 03 WHITE X 0 285 0 03 Y 0 293 0 03 5 Viewing angle 176 R L U D 6 Color Temperature Standard 8 300 9 300 10 300 Test Signal Cool 11 000 12 000 13 000 HDMI input With 16 gray Warm 5 500 6 500 7 500 pattern 6th bar from right 7 Color Distortion DG 8 Color Distortion DP deg 9 Color ...

Страница 8: ...24 768 56 476 70 06 75 00 VESA XGA O 11 1024 768 60 023 75 02 78 75 VESA XGA O DTV 1 720 480 31 47 59 94 SDTV 480P 2 720 480 31 50 60 SDTV 480P 3 1280 720 45 00 60 00 HDTV 720P 4 1280 720 44 96 59 94 HDTV 720P 5 1920 1080 33 75 60 00 HDTV 1080I 6 1920 1080 33 72 59 94 HDTV 1080I 6 Component Video Input Y CB PB CR PR No Specification Proposed Resolution H freq kHz V freq Hz Pixel clock 1 720 480 15...

Страница 9: ...68 48 363 60 00 65 00 VESA XGA O 9 1024 768 56 476 70 06 75 00 VESA XGA O 10 1024 768 60 023 75 02 78 75 O DTV 11 720 480 31 500 60 27 03 SDTV 480P 12 720 480 31 469 59 94 27 00 SDTV 480P 13 1280 720 45 00 60 00 HDTV 720P 14 1280 720 44 96 59 94 HDTV 720P 15 1920 1080 33 75 60 00 HDTV 1080I 16 1920 1080 33 72 59 94 HDTV 1080I 8 HDMI Input PC DTV 9 Mechanical specification No Item Content Remark 1 ...

Страница 10: ...rammer click icon 5 End after confirming 4 EDID The Extended Display Identification Data DDC Display Data Channel download This is the function that enables Plug and Play 4 1 HDMI EDID Data Input 1 Required Test Equipment 1 Jig for adjusting PC DDC PC serial to D sub Connection equipment 2 S W for writing DDC EDID data write read 3 D Sub cable 4 Jig for HDMI Cable connection 2 Preparation for Adju...

Страница 11: ...f White Balance Operate the Zero calibration of the CA 210 then attach sensor to module surface when you adjust Manual adjustment is also possible by the following sequence 1 Enter Ez Adjust by pressing ADJ KEY on the Service Remote Control 2 Select 8 WHITE PATTERN using CH Key and HEAT RUN at least 30 minutes by pressing the ENTER Key 3 Receive the Window pattern signal from Digital Pattern Gener...

Страница 12: ... on the Service R C 3 Select 3 Video uPD Set and enter the adjustment mode by pressing the right key 4 When enter the adjustment mode displayed the TV 2CH Screen automatic at picture and appear as below figure 5 When the automatic adjustment is over RF Configuration Success is displayed If the adjustment has errors Video Configuration Error is displayed 6 After the RF signal automatic adjustment i...

Страница 13: ...e 0 Treble 50 Bass 50 Front Surround Off TV Speaker On BBE Off 7 Timer Auto clock On Manual Clock Off Off Timer Off On Timer Off Sleep Timer Off Auto Off Off 8 Option Aspect Ratio 16 9 Cinema 3 2 mode Off Caption Off Caption Text CC1 Caption Option Off Language English 9 Lock Lock System Off Set password On Default 0000 Block channel None Movie Rating Off TV Rating Children None TV Rating General ...

Страница 14: ...put To check the front AV To move channel up down or to select a function displayed on the screen To adjust the volume or accurately control a specific function To set a specific function or complete setting To move the channel down in the PIP screen To use as a red key in the teletext mode To move the channel in the PIP screen To use as a green key in the teletext mode To switch between the main ...

Страница 15: ...circuit Doesn t the low pressure output come out Doesn t the St by 5V signal come out Yes Yes No 4 Check the 5V MNT signal circuit Doesn t the 5V Monitor signal come out Yes 7 Check the VSC Vs ON signal Doesn t the high tension output come out Doesn t the VSC signal Vs ON come out Yes Yes No 8 Check the Vs Va voltage output circuit Doesn t the Vs Va voltage output come out Yes No No 5 Check the VS...

Страница 16: ... cord connected Plug in power cord Yes No Cable connecting the Line Filter and Power Board connected Connect Cable Yes No Is Fuse F101 on Power Board good Replace Fuse Yes No Is the Power Board connected to 7P of VSC Board Connect Cable Yes No When ST BY 5V does not operate replace Power Board ...

Страница 17: ...ollow Check the LVDS cable Is the VSC Digital Board good Is the LVDS cable connected well Reset cable Yes No No Yes Operates the Thine IC IC100 Replace Thine IC IC100 No Is the T Con Board good Replace T Con B D No No Check IEP IC902 Replace IEP IC902 Yes No Check Scaler IC400 Replace VSC Digital B D Replace Scaler IC400 Yes Yes No Replace cable Yes ...

Страница 18: ...Q good Is the Tuner Cable connected well Reset cable Yes No No Yes Is the Video Decoder IC302 UPD64011 good Replace Tuner No Are the Input voltage IIC Comm and CVBS outputs good Yes Are the Input voltage IIC Comm and HV sync good No Replace IC103 No Are the Input voltage IIC Comm and HV sync good No Replace IC302 No Is IC103 Switch CXA2069Q good Yes Is the Video Decoder IC302 UPD64011 good Is norm...

Страница 19: ...oltage IIC Comm and HV sync good No Replace IC No Is normal the IC104 140538G Yes Is IC101 CXA2181Q good Are the Input voltage IIC Comm and HV sync good No Replace IC104 No Are the Input voltage IIC Comm and HV sync good No Replace IC101 No Yes Is normal the IC306 MST9883C Are the Input voltage IIC Comm and HV sync good No Replace IC306 No Yes Is IC400 Scaler good Are the Input voltage IIC Comm an...

Страница 20: ... Input voltage IIC Comm and HV sync good No Replace IC306 No Is normal the M52758 Yes Is normal IC400 the Scaler Are the Input voltage IIC Comm and HV sync good No Replace IC306 No Is normal IC400 the Scaler Are the Input voltage IIC Comm and HV sync good No Replace IC400 No Are the Input voltage IIC Comm and HV sync good No Replace IC400 No Yes Is normal IC400 the Scaler Are the Input voltage IIC...

Страница 21: ...nnected well Reset cable No No Reset cable No Replace IC1004 Replace IC1002 No No Replace IC1003 No Replace SPK cable Yes Yes Audio normal on RGB DVI Is the Flat cable connected well No No IC1004 MSP4440K good IC1002 NSP 2100A good Yes Replace VSC Analog B D IC1003 TAS5122 good Yes Yes Audio normal on RF AV Component No ...

Страница 22: ...BLOCK DIAGRAM 22 ...

Страница 23: ...027G 13P 6631900012J 10P 6631T25019T 12P 6631900037E 12P 6631900048A 4P 6631T20010C 10P 6631900010B 12P 6631V10003C 25P 6631V10004Z 31P 6631900092A 12P 6631T11020Z 30P 6631900019Q 4P 6631900018P 3P WIRING DIAGRAM ...

Страница 24: ... 24 EXPLODED VIEW 010 020 060 050 070 080 090 100 030 130 040 041 042 110 120 ...

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Страница 42: ...Aug 2006 Printed in Korea P NO 38289S0043 ...

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