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CONTENTS

CONTENTS .............................................................................................. 2

PRODUCT SAFETY ..................................................................................3

SPECIFICATION ........................................................................................6

ADJUSTMENT INSTRUCTION .................................................................9

TROUBLE SHOOTING ............................................................................14

BLOCK DIAGRAM...................................................................................22

EXPLODED VIEW .................................................................................. 24

REPLACEMENT PARTS LIST ............................................................... 26

SVC. SHEET ...............................................................................................

Содержание 32LC4D Series

Страница 1: ... SERVICE MANUAL CAUTION BEFORE SERVICING THE CHASSIS READ THE SAFETY PRECAUTIONS IN THIS MANUAL CHASSIS LD73A MODEL 32LC4D 32LC4D ZA MODEL 32LC45 32LC45 ZA MODEL 32LC46 32LC46 ZC website http biz LGservice com ...

Страница 2: ... 2 CONTENTS CONTENTS 2 PRODUCT SAFETY 3 SPECIFICATION 6 ADJUSTMENT INSTRUCTION 9 TROUBLE SHOOTING 14 BLOCK DIAGRAM 22 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: ...ure Size 32 inch 7 Tuning System FVS 100 program PAL 200 PR Option 8 Operating Environment 1 Temp 0 40 deg 2 Humidity 10 90 9 Storage Environment 3 Temp 20 50 deg 4 Humidity 10 90 10 Display LCD Module LPL 2 General Specification No Item Specification Remark 1 Panel 32 TFT WXGA LCD 2 Frequency range H 45 50Khz PC Input V 47 63Hz 3 Power consumption 26inch 4 6 W 32inch 5 54 W 4 LCD Module LPL 32inc...

Страница 7: ...minance cd m2 320 400 32 Variation 1 3 MAX MIN 3 Contrast Ratio CR 32 600 800 All White All Black CRD With 32 1200 1600 All White All Black 4 CIE Color Coordinates White Wx Typ 0 285 Typ LPL 26 Wy 0 03 0 293 0 03 Red Xr 0 640 Yr 0 343 Green Xg 0 280 Yg 0 605 Blue Xb 0 145 Yb 0 065 6 RGB PC INPUT Mode Table No Resolution H freq kHz V freq Hz Pixel clock MHz Proposed 1 720X400 31 468 70 08 28 321 2 ...

Страница 8: ...60Hz HDCP 11 1920X1080 33 75 60 74 250 HDTV 1080i 60Hz HDCP 12 1920X1080 27 24 74 250 HDTV 1080P 24Hz HDCP 13 1920X1080 56 25 50 00 148 500 HDTV 1080P 50Hz HDCP 14 1920X1080 67 43 59 94 148 352 HDTV 1080P 60Hz HDCP 15 1920X1080 67 50 60 148 500 HDTV 1080P 60Hz HDCP No Resolution H freq kHz V freq Hz Pixel clock MHz Proposed 1 720X400 31 468 70 08 28 321 2 640X480 31 469 59 94 25 17 VESA 37 684 75 ...

Страница 9: ...folder c LGIDS files 4 Start LGIDS 3 2 Channel memory method 1 Press TILT key in Adjust remocon Automatic setting 2 Setting up like bottom figure Confirmation Press ADJ Key in the Adjust remote control Select System Control2 by using D E CH key and press A ENTER RS 232 Host Gprobe Baud Rate 115200bps Download Cortez 3 Connect RS232 cable Use the general RS 232C Twisted Serial Cable 4 Operate LGIDS...

Страница 10: ...D ZA 37LC4D ZA 37LC7D ZA 42LC4D ZA 42LC7D ZA Nome di modello 1 Hex 2 Hex 1 Hex 2 Hex 26LC4D 90 CF CC BC 26LC7D 8D CC CC BC 32LC4D 93 D2 CC BC 32LC7D 90 CF CC BC 37LC4D 8E CD CC BC 37LC7D 8B CA CC BC 42LC4D 92 D1 CC BC 42LC7D 8F CE CC BC 0x000x010x02 0x03 0x04 0x05 0x06 0x07 0x08 0x09 0x0A 0x0B0x0C0x0D 0x0E 0x0F 0x00 0 FF FF FF FF FF FF 0 1E 6D 0x01 1 3 80 46 27 78 EA D9 B0 A3 57 49 9C 25 0x02 11 4...

Страница 11: ...the Video Signal 7 Color Bar signal into AV3 2 Set the PSM to Dynamic mode in the Picture menu 3 Press IN START key on R C for adjustment 4 Press the G Vol key to operate the set then it becomes automatically 5 Auto RGB OK means the adjustment is completed 6 2 Adjustment of Component 1 Required Equipments Remote controller for adjustment MSPG 925FS Pattern Generator Which has 720p 60Hz YPbPr outpu...

Страница 12: ...cm distance keep it with the surface of the Module and Color Analyzer s Prove vertically 80 100 3 Aging time After aging start keep the power on no suspension of power supply and heat run over 15 minutes Using no signal or full white pattern or the others check the back light on 7 1 Manual white Balance One of R Gain G Gain B Gain should be kept on 80 and others are controlled lowering from 80 1 P...

Страница 13: ...in the Adjust remocon 2 Select System Control 2 by using D E CH key and press A ENTER 3 Using Adjust remocon RS 232 Host Baud Rate Download value change RS 232 Host Gprobe Baud Rate 115200bps Download Cortez 2 Bar code scanning 1 Push the menu button in DTV mode Select the STATION Diagnostics To set 2 Check the Serial Number 13 ...

Страница 14: ...es the high tension output appear Does the VSC signal Vs ON appear No No Does the high tension output voltage occur When removing the Y B D Module input connector does output voltage drop When the Y Z B D Module input connector does Power Board high tension output voltage drop No No No 9 Check the Power Board Output high tension circuit Yes 10 Check the Z B D Module output circuit Yes When removin...

Страница 15: ...and Power Board Cable connected Connect the Cable Yes No Is the appropriate Fuse F101 on the Power Board Replace the Fuse Yes No Is the Power Board and 13P of VSC Board Cable connected Connect the Cable Yes No After removing the cables connect them to the Power Board except the SC101 connection cable and change the AC voltage marking to manual When ST BY 5V does not operate replace the Power Board...

Страница 16: ... B D Is the appropriate Fuse FS101 FS102 on the Y B D normal Replace if open Yes No Yes Yes Replace the Z Board Is the Z Board normal Is the output voltage normal after removing P1 connector of Z B D Is the appropriate Fuse FS1 FS2 on Z B D replace if open Yes No Yes Is the X Board normal Is the output voltage normal after removing P1 2 3 4 5 connectors of the X B D If the output voltage is normal...

Страница 17: ...Reconnect the LVDS cable in P800 No Is the IC700 FLI8548 Output normal Replace the VSC No NO Replace the Power board Is the Low High output voltage normal except for stand by 5V NO 4 No Raster 1 Symptom 1 No OSD and image occur at screen 2 It maintains the condition where the front LED is green 2 Procedure check ...

Страница 18: ...ntinuously accomplished from the module 2 Procedure check Is the LVDS cable normal Is the VSC Board normal Is the LVDS cable connected Re insert the Cable Yes No No Yes Does the FIL8548 IC IC700 operate Replace the FIL8548 IC IC700 No Is the Ctrl Board of Module normal Replace the Ctrl B D No No Yes Replace the VSC B D Replace the cable Yes ...

Страница 19: ...isplay in side S video AV mode Is the Tuner normal Is the CXA2069Q normal Is the Tuner Cable connected Re insert the cable Yes No No Yes Is the FIL8548 normal Replace the Tuner No Are the Input voltage IIC Communication and CVBS output normal Yes Are the Input voltage IIC Communication and HV sync normal No Replace the IC No Are the input voltage IIC Communication and HV sync normal No Block A Rep...

Страница 20: ...e R G B input and H V Sync of the J1100 normal Check the input source No Is the HDMI002 IC1004 normal Yes Same as Block A Are Input voltage IIC Communication and HV sync normal No Is the Video input of the A V Jack J1200 normal Yes Same as Block A Check the input source No Replace the IC No Is the Video input of the A V Jack J1201 normal Yes Same as Block A Check the input source No Yes Same as Bl...

Страница 21: ...xcept HDMI DTV RF Check the signal before CAX2069 refer to circuit diagram No YES YES Is there no sound only for RF Check the Tuner IN OUT No YES YES Is there no sound only for AV component PC input Is the output of CXA2069 normal No YES Is theIC1300 operating normally Replace the IC1300 MSP4450 No Is the IC1301 operates normally Replace the IC1300 STA335BW No YES Replace the VSC B D YES No Replac...

Страница 22: ... 22 BLOCK DIAGRAM Synthesis ...

Страница 23: ...MEMO 23 ...

Страница 24: ... 24 300 200 600 120 530 590 591 430 201 580 520 521 400 582 581 203 206 202 205 204 EXPLODED VIEW ...

Страница 25: ...P No EBY36717302 1 4 2007 01 26 ...

Страница 26: ...P No EBY36717302 2 4 2007 01 26 ...

Страница 27: ...P No EBY36717302 3 4 2007 01 26 ...

Страница 28: ...Mar 2007 Printed in Korea P NO MFL36695305 ...

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