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EXPLODED VIEW PARTS LIST

1

4850V00119A

CUSHION, SPONGE 75*40*12.5 SPONGE RD-JT91

2

4850V00118A

CUSHION, SPONGE 75*59*19.5 SPONGE RD-JT91

3

4930V00404B

HOLDER, SPONGE SUS304 T0.3 RD-JT91

4

3720V00264B

PANEL, CONTROL RD-JT92 ACRYL STS PLATING

5

4810V01028A

BRACKET, TOP RD-JT91 RE03RA PC LENS

6

3550V00465C

COVER, TOP RD-JT91 MG MASKING

7

3520V00415A

INDICATOR, LED RD-JT91 PMMA  3 LIGHT

8

3520V00435A

INDICATOR, PRE AMP RD-JT91 PMMA  FRONT

9

3550V00482A

COVER, RD-JT91 PC LENS

10

5020V00941B

BUTTON, CONTROL RD-JT91 ABS, AF-303S 4KEY ASSY

11

4810V01051A

BRACKET, DECO RD-JT91 RE03RA PC-ABS SIDE REAR

12

4810V01032A

BRACKET, CASE RD-JT91 RE03RA PC-ABS SIDE REAR

13

3790V00762A

WINDOW, PRE-AMP RD-JT91 PC REAR

14

3141VMNS56A

CHASSIS ASSEMBLY, MAIN RE048A MAIN PCB

15

3581V00041A

DOOR ASSEMBLY, ASSY RD-JT91 DOOR

16

4810V01054A

BRACKET, RD-JT91 RE03RA  LCP+GF30%

17

4810V01053A

BRACKET, RD-JD91 RE03RA  LCP+GF30%

18

6912B22008A

LAMP,HIGH PRESSURE MECURY NSH200LGA USHIO 82V 2.4A 200W PROJECTOR

19

3550V00468A

COVER, LAMP RD-JT91  

20

4810V01039A

BRACKET, COVER RD-JT91  PC-ABS BRACKET LOUVER INLET

21

4810V01038A

BRACKET, COVER RD-JT91  PC-ABS LOUVER_EXIT

22

4970V00065B

SPRING, PLATE SUS   LAMP COVER

23

4930V00393A

HOLDER, LAMP LCP+GF30 RD-JT91

24

4814V00469B

SHIELD, PLATE RD-JT91 RE048A AL 

25

3550V00466B

COVER, TOP CASE COVER AL RD-JT91

26

3550V00467B

COVER, TOP RD-JT91 AL C/W

27

4810V01026A

BRACKET, FIXER OPTICAL CASE RD-JT91 RE048A MG 

28

3680V00129A

LENS, COSINA LENS RD-JT91 .

29

4814V00474B

SHIELD, DMD BT RE048A AL RD-JT91

30

4814V00472B

SHIELD, DMD UPPER RE048A AL RD-JT91

32

4814V00473B

SHIELD, DMD LEFT RE048A AL RD-JT91

33

6871VSMZ47A

PWB(PCB) ASSEMBLY,SUB DMD RE048A DMD

34

3300V00354B

PLATE, SHIELD AL  RD-JT91

35

4970V00066B

SPRING, PLATE STSC304   RD-JT91

36

4920V00145B

HEAT SINK, EXTRUSION 65*68  RD-JT91

37

4930V00395B

HOLDER, BLOWER SECC RD-JT91

38

5900V05005A

FAN,DC A34860-58LG NIDEC 51MM*51MM*15MM 12V 3700RPM 7.0V - 13.8V RD-JT91 LAMP BULB COOLING FAN

39

3550V00469A

COVER, FAN BLOWER RD-JT91 PC 

40

3550V00470A

COVER, DUCT RD-JT91  PEEK

41

5900V08011A

FAN,DC 8412N/2GME PAPST 80*80*25.4MM 12V 2600RPM 8V - 15V RD-JT91 LAMP COOLING FAN

42

4810V01044B

BRACKET, DUCT LAMP FAN RD-JT91 RE048A SECC(EGI) 

43

4972V00125B

FIXER, POLYURETHAN FANMOUNT RD-JT91 YELLOEW

44

4810V01049A

BRACKET, DUCT RD-JT91 RE03RA PC-ABS BLOW DIR

45

3550V00472B

COVER, LAMP RD-JT91 SECC(EGI) PRESS

46

3550V00505A

COVER, FRONT RD-JT91 PC GF35% BK

47

3580V00107B

DOOR, RD-JT92 PC LENS FRONT

48

4810V01040A

BRACKET, COVER RD-JT91  PC-ABS DOOR BOX

49

4778V00068C

LEG, ASSY RD-JT91 ABS, HF-380 FOR LEG”

50

3110V00404A

CASE, BOTTOM RD-JT91 MG WAFFER

51

4778V00109A

LEG, RUBBER RD-JT91 POLYURETHAN REAR

52

3530V00153C

GRILLE, SHEET RD-JT91 EGI  2.8 HOLE PRESS

53

4930V00397A

HOLDER, SENSOR BOARD MOUNT PC+GF30 RD-JT91

54

6400TG0004B

SPEAKER,TWEETER T028S01K1454 ESTEC 8OHM 1.0/1.5W 78DB OTHERS D28*5.6MM WIRE 300MM FROM 6400TG0004A

55

4980V01096B

SUPPORTER, SPEAKER SUS RD-JT91

56

4972V00125A

FIXER, POLYURETHAN FANMOUNT RD-JT91 BLUE

57

4810V01052B

BRACKET, SHIELD RD-JT91 RE048A SUS .

58

5900V08011B

FAN,DC 8412N/2GMLE PAPST 80*80*25.4MM 12V 2050RPM 8V - 15V RD-JT91 POWER BOARD COOLING FAN

59

4980V00B24A

SUPPORTER, PC-ABS BRACKET BALLASTER SUP

60

6316000008A

BALLAST, PHG161G7KM USHIO 200W PROJECTOR

61

3858V00070A

SHEET (MECH), PVC MAIN .  SHIELD

62

4980V01097D

SUPPORTER, PCB MSWR RD-JT91

63

3501V00196C

POWER SUPPLY ASSEMBLY, POWER RD-JT91 RE048A PV-JT91 POWER VALLEY SMPS BOARD 100_240V . POWERVALLEY .

64

4980V01097C

SUPPORTER, PCB MSWR RD-JT91

65

3501V00196E

POWER SUPPLY ASSEMBLY, POWER RD-JT91 RE048A POWER VALLEY PFC BOARD 100_240V . POWERVALLEY .

66

4980V01097E

SUPPORTER, PCB MSWR NICKLE PLATING RD-JT91

67

5230V00023A

FILTER(MECH), COLOR WHEEL RD-JT91 .

68

6871VSMZ48A

PWB(PCB) ASSEMBLY,SUB, CW-INDEX RE048A CW_INDEX

69

3141VSNF28A

CHASSIS ASSEMBLY, SUB RE048A CW_INDEX

70

4810V01031A

BRACKET, FIXER MOTOR BRACKET RD-JT91 RE048A MG 

71

4970V00067B

SOCKET(CIRC),IC PLATE  8614-002, C-SPRING, RD-JT91”

74

6871VSMZ50C

PWB(PCB) ASSEMBLY,SUB SENSOR RE048B SENSOR2..

No.

Part No.

Description

Содержание RD-JT91

Страница 1: ...OJECTOR SERVICE MANUAL CAUTION BEFORE SERVICING THE CHASSIS READ THE SAFETY PRECAUTIONS IN THIS MANUAL CHASSIS RE 048A MODEL RD JT91 website http biz LGservice com e mail http www LGEservice com techsup html ...

Страница 2: ...ONS 3 SERVICING PRECAUTIONS 4 CONTROL DESCRIPTIONS 6 REPLACING OF LAMP 10 SPECIFICATIONS 11 ADJUSTMENT INSTRUCTION 13 PRINTED CIRCUIT BOARD 18 BLOCK DIAGRAM 21 EXPLODED VIEW 22 EXPLODED VIEW PARTS LIST 23 REPLACEMENT PARTS LIST 24 SVC SHEET ...

Страница 3: ...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 ...

Страница 4: ...are integrated circuits and some field 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 Altern...

Страница 5: ... 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 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...

Страница 6: ...ector screen tiny black points and or bright points red blue or green This can be a normal result of the manufacturing process and does not always indicate a malfunction Focus ring Zoom ring Lens cover Push the lens cover into the inside after pulling it open into the front If you mount on the ceiling after pushing the cover the lens cover is installed If not the cover may overlap projecting lens ...

Страница 7: ...STONE OK POWER Button KEYSTONE Button MENU Button Selects or closes menus AUTO Button VOLUME Button Adjusts volume level and functions of menus SOURCE Button Switches to RGB DVI Video S Video mode A OK Button Checks present mode and saves the change of functions ...

Страница 8: ...URCE AUTO BLANK ARC MUTE STILL OK VOL VOL KEYSTONE KEYSTONE POWER Button SOURCE Button KEYSTONE D EButton A OK Button ARC Button STILL Button AUTO Button BLANK Button MUTE Button Switches the sound on or off VOL F GButton MENU Button ...

Страница 9: ...while the lamp preheats The lamp is preheated and on Projector lamp is cooling as power out 2 minutes Power off Projector lamp is reaching the end of its life and needs to be replaced with a new lamp over 2000 hours The projector has trouble in the lamp or around it at power on Retry Power On again later If lamp indicator is red flashing again contact the service center The lamp cover is not close...

Страница 10: ...or on its side as below so that you can easily access the lamp cover 3 Remove the two retaining screws on the lamp cover with a screwdriver and then lift off the lamp cover 4 After lifting the lamp cover off remove the two retaining screws on the lamp case with a screwdriver 5 Lift up the fixed wire handle of the lamp 6 Pull out the handle slowly and remove the lamp case 7 Insert the new lamp gent...

Страница 11: ...than 30min before the measurement A Test and Inspection Method 1 performance Follow the Standard of LG TV test 2 RCA JACK performance Follow the standard of LG 3 Standards of Etc requirement SAFETY CE EN55020 Electric wave CB EN55013 A General Specification 11 No Item Video input applicable system Power Input Voltage Market Screen size Aspect ratio Operating Temperature Operating Humidity Storage ...

Страница 12: ... PR 480i 480p 720p 1080i 576i 576p 1 480i 576i 1 480i 576i 1 1 Power Menu OK Vol Source keystone keystone auto Normal Film Sports Contrast Brightness Color Tint Sharpness Normal Warm Cool 4 3 16 9 1W mono Korean english Deutsch Italiano Espanol Chinese Japanese france Swedish DVI D D Sub 15 pin D Sub 15 pin RCA jack Yellow S VIDEO jack PC audio jack USB jack only for download 1 2 3 4 5 6 7 8 9 10 ...

Страница 13: ...key to enter the item you wish to adjust 3 Press the Instart key to exit the service menu 4 Preparation for Adjustment 1 Power is connected in set to be power on 2 Do heat run 5minutes 4 Folding Mirror Adjustment 4 1 Before adjusting check the position of Folding MIrror Check the position of Folding Mirror in the base of up down left right surface Fig 4 1 1 Check the Lower Position As shown Fig 4 ...

Страница 14: ...Turn screw B Left Right adjustment to the right left and mark where the image is aligned Fix the adjustment screw in position 3 Left and Right Adjustment 2 1 Mark screw C in its original position Turn screw C up down adjustment to the right and mark where the image is aligned 2 Mark screw C in its original position Turn screw C up down adjustment to the left and mark where the image is aligned 3 T...

Страница 15: ...tating 180 degree the DMD If necessary keep under observation 3 Don t clean the DMD with the high pressure The static electricity and pressure will damage the DMD 15 Up down screw A Right tighten direction Adjustmen t part Screen state Initial state State after adjusting Screw direction Description At first upside illuminator goes down and right illuminator also goes down in detail Left loosen dir...

Страница 16: ...t component offset gain set in the adjustment menu 3 Automatic Adjustment Press the enter button in component offset gain set of Adjustment menu Adjustment is operated by system Micom automatically CWI White Balance Measurement Condition 1 CWI and White Balance is adjusted using a CL 200 or equivalent 2 Adjust the screen size to a minimum of 40 inches 3 Place the CL 200 on the center of projection...

Страница 17: ...ttern Generator DVI input 3 Set fixing device 1EA 4 Remote control 1EA 9 2 Equipment Composition 1 Compose the equipment as Fig 9 2 It may use a pattern other than 70 white Use a white pattern 3 Press the Instart key on the service remote to select white peaking and check the RGB DVI peaking data should be set to 10 4 Press the Instart key on the service remote control to select White balance 5 Ch...

Страница 18: ... 18 PRINTED CIRCUIT BOARD MAIN TOP ...

Страница 19: ... 19 MAIN BOTTOM ...

Страница 20: ... 20 DMD TOP DMD BOTTOM ...

Страница 21: ...D D I I F F D D A A D D 1 1 0 0 0 0 0 0 R R e e s s e e t t K K e e y y p p a a d d I I R R r r e e m m o o t t e e U U S S B B C C W W D D r r i i v v e e r r C C W W I I n n d d e e x x C C W W D D r r i i v v e e D D M M D D I I F F D D M M D D 0 0 5 5 5 5 S S V V G G A A D D V V I I D D S S U U B B 4 4 0 0 1 1 4 4 9 9 9 9 7 7 0 0 1 1 7 7 4 4 9 9 7 7 5 5 0 0 7 7 9 9 9 9 1 1 0 0 1 1 1 1 9 9 9 9 ...

Страница 22: ...IEW 48 47 45 49 46 50 52 51 44 41 28 16 17 19 20 21 23 18 24 22 26 25 30 33 71 IC753 29 32 27 34 35 36 37 38 39 40 15 13 12 11 14 9 10 8 6 5 4 3 7 1 2 42 43 54 74 55 57 58 56 60 59 61 63 65 64 66 62 70 53 67 69 68 74 ...

Страница 23: ...M 7 0V 13 8V RD JT91 LAMP BULB COOLING FAN 39 3550V00469A COVER FAN BLOWER RD JT91 PC 40 3550V00470A COVER DUCT RD JT91 PEEK 41 5900V08011A FAN DC 8412N 2GME PAPST 80 80 25 4MM 12V 2600RPM 8V 15V RD JT91 LAMP COOLING FAN 42 4810V01044B BRACKET DUCT LAMP FAN RD JT91 RE048A SECC EGI 43 4972V00125B FIXER POLYURETHAN FANMOUNT RD JT91 YELLOEW 44 4810V01049A BRACKET DUCT RD JT91 RE03RA PC ABS BLOW DIR 4...

Страница 24: ...1B ROHM LOCA NO PART NO DESCRIPTION D170 IC101 IC102 IC103 IC104 IC105 IC108 IC1511 IC181 IC1901 IC202 IC203 IC203 IC204 IC204 IC205 IC206 IC251 IC252 IC301 IC401 IC402 IC403 IC404 IC405 IC406 IC410 IC412 IC413 IC502 IC503 IC512 IC601 IC651 IC653 IC702 IC753 IC801 IC802 IC803 IC804 IC805 MOS101 MOS102 MOS104 MOS105 MOS106 Q101 Q102 0IMCRSH003A 0IMCRTI033A 0IMCRAL006A 0IMCRSG007A 0IMCRSG007A 0IMCRS...

Страница 25: ...PF 1608 50V 5 R TP NP0 100PF 1608 50V 5 R TP NP0 100PF 1608 50V 5 R TP NP0 0 1UF 1608 16V 10 R TP X7R LOCA NO PART NO DESCRIPTION C121 C122 C125 C126 C127 C128 C128 C1511 C1512 C170 C181 C1902 C1903 C1904 C1905 C1906 C1907 C1908 C1909 C1910 C200 C201 C203 C204 C205 C206 C207 C208 C209 C210 C211 C212 C213 C214 C215 C216 C217 C218 C219 C220 C221 C222 C224 C225 C226 C227 C228 C229 C230 C231 C232 C233...

Страница 26: ...T NO DESCRIPTION C333 C334 C336 C338 C338 C340 C341 C344 C346 C347 C348 C350 C351 C352 C354 C355 C356 C357 C358 C359 C362 C363 C366 C367 C401 C402 C403 C403 C404 C405 C406 C406 C407 C408 C409 C410 C411 C412 C413 C414 C415 C416 C417 C418 C419 C420 C421 C422 C423 C424 C425 C427 0CC331CK41A 0CK104CF56A 0CK224CFG6A 0CE2253K618 0CK224CFG6A 0CK224CFG6A 0CC050CK11A 0CK104CF56A 0CK104CF56A 0CC050CK11A 0CK...

Страница 27: ...7R LOCA NO PART NO DESCRIPTION C487 C488 C489 C490 C491 C492 C493 C494 C495 C496 C497 C498 C499 C501 C502 C503 C504 C505 C506 C507 C508 C511 C523 C601 C602 C603 C604 C605 C606 C607 C608 C609 C610 C611 C611 C612 C612 C613 C613 C614 C614 C615 C615 C616 C616 C617 C617 C618 C618 C619 C619 C620 0CK104CF56A 0CK104CF56A 0CK104CF56A 0CC680CK41A 0CC680CK41A 0CC680CK41A 0CK104CF56A 0CK104CF56A 0CK104CF56A 0...

Страница 28: ...R 0 1UF 1608 16V 10 R TP X7R 0 1UF 1608 16V 10 R TP X7R 0 1UF 1608 16V 10 R TP X7R LOCA NO PART NO DESCRIPTION C759 C760 C761 C762 C763 C764 C765 C766 C801 C802 C803 C804 C805 C806 C807 C808 C809 C810 C811 C812 C813 C815 C816 C817 C818 C819 C820 C822 C823 C824 C825 C826 C827 C828 C829 C830 C831 C832 CN725 CN751 J201 J251 J301 J302 J501 J651 0CK104CF56A 0CK104CF56A 0CK104CF56A 0CE105SK6DC 0CK104CF5...

Страница 29: ...M 1 16 W 1608 5 R TP 4P E24 SERIES 22 OHM 1 16 W 1608 5 R TP 4P E24 SERIES 22 OHM 1 16 W 1608 5 R TP 4P E24 SERIES 22 OHM 1 16 W 1608 5 R TP 4P E24 SERIES 22 OHM 1 16 W 1608 5 R TP 4P E24 SERIES SKHMPW 5P CHIP TACT J ALPS SKHMPW 5P CHIP TACT J ALPS SKHMPW 5P CHIP TACT J ALPS SKHMPW 5P CHIP TACT J ALPS SKHMPW 5P CHIP TACT J ALPS SKHMPW 5P CHIP TACT J ALPS SKHMPW 5P CHIP TACT J ALPS SKHMPW 5P CHIP T...

Страница 30: ......

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Страница 32: ......

Страница 33: ......

Страница 34: ...Jun 2004 Printed in Korea P NO 3828VD0085Q ...

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