LG RD-JT30 Service Manual

LG RD-JT30 Manual

Get LG RD-JT30 PDF manuals and user guides View all LG RD-JT30 manuals
Add to My Manuals
Save this manual to your list of manuals

LG RD-JT30 manual content summary:

  • LG RD-JT30 | Service Manual - Page 1
  • LG RD-JT30 | Service Manual - Page 2
    4 3.Specifications 5 4.Exploded View 6 5.Replacement Parts List 8 6.Block Diagram 11 7.Packaging Description 12 8.Appearance Description 14 9.Alignment Procedure 16 10.How to disassemble the set 23 11.FAQ (Frequently Asked Questions) 32 12.Trouble Shooting Guide 33 13.Service
  • LG RD-JT30 | Service Manual - Page 3
  • LG RD-JT30 | Service Manual - Page 4
  • LG RD-JT30 | Service Manual - Page 5
  • LG RD-JT30 | Service Manual - Page 6
    illustration shows the parts from the front of the projector. The illustration on the next page shows the parts visible from the rear of the projector. To see exploded views of the case parts, major components and optical engine. Upper case Lamp Module Ballast Module Main Board Front Fan Lens 6
  • LG RD-JT30 | Service Manual - Page 7
    DC-DC Board Lamp Blower Power Board Sensor Board Rear Fan Color Drum Chip Board Optical Engine 7
  • LG RD-JT30 | Service Manual - Page 8
    5. Replacement Parts List LG RD-JT30 99.J4977.L31 NO. BenQ P/N LG P/N DESCRIPTION 1 55.J4906.001 6871VSN256A PCBA CHIP/BD LG JT30 2 60.J4910.001 3680V00113A ASSY LENS C1,C2 JT30 PROT 3 60.J4911.001 5018V00071A ASSY FOLD MIRROR MODULE JT30 4 60.J4912.CL1 6912B22006A ASSY CSD RD-JT30 LAMP
  • LG RD-JT30 | Service Manual - Page 9
    98.J5501.001 98.J1302.041 6851V00021R CABLE A/V RCA(R,W,Y)1500MM 6851V00021V C.A MIN-DIN 4P S-VIDEO W/S 15 6710V00086E REMOTE CONTROLLER LG 6710V008 3550V00341A BATTERY COVER FOR REMORE CONTROL 3880VA0025A SOFT CASE SL705X LG LG RD-JT31 99.J5577.L31 NO. BenQ P/N 1 55.J4906.001 2 55.J4922.001 3 65
  • LG RD-JT30 | Service Manual - Page 10
    USB A-B 1800MM BLACK 6851V00021U CABLE D-SUB/RCA 1800MM/SL705X 6851V00021P SIGNAL/C 15/15P (-9) 2500MM 6851V00021R CABLE A/V RCA(R,W,Y)1500MM 6851V00021V C.A MIN-DIN 4P S-VIDEO W/S 15 6710V00086E REMOTE CONTROLLER LG 6710V008 3550V00341A BATTERY COVER FOR REMOTE CONTROL 3880VA0025A SOFT CASE SL705X
  • LG RD-JT30 | Service Manual - Page 11
    6. Block Diagram 11
  • LG RD-JT30 | Service Manual - Page 12
    7. Packaging Description 12
  • LG RD-JT30 | Service Manual - Page 13
    13
  • LG RD-JT30 | Service Manual - Page 14
    8. Appearance Description 14
  • LG RD-JT30 | Service Manual - Page 15
    15
  • LG RD-JT30 | Service Manual - Page 16
    9. Alignment Procedure 1.DMD Bias Voltage Alignment Equipment:None Procedure: Watch DMD "Bias Voltage Bin" Label (Example: 8060-7bbc DDDD XXXXXXX M) Switch the DIP switch (SW2) on Main board according to the red character on the DMD chip 3. 00: E 01: D 10: C 11: B ON 0 0 16
  • LG RD-JT30 | Service Manual - Page 17
    above procedures again. 3.PC Color Alignment Procedure Equipment: Pattern generator Procedure: Connect power, D-sub, into projector. Change pattern generator to pattern 43 5-DISC. Light on projector Enter factory mode. Choose ADC Brightness item to Press. Choose ADC Contrast item to Press. Change
  • LG RD-JT30 | Service Manual - Page 18
    Lux meter ( CL-100) Procedure: (a). Offset adjustment: Black coordinate spec: Osram lamp Oshio lamp x0 0.281 0.01 0.313 0.01 y0 0.311 0.01 0. Video into projector. Change Timing and pattern of pattern generator : Timing : 480P(H:31.54 KHz,V:60.08 Hz) pattern : black Light on projector Set user
  • LG RD-JT30 | Service Manual - Page 19
    19
  • LG RD-JT30 | Service Manual - Page 20
    ROD screw driver Assemble clip rod top Assemble clip rod side Review Equipment Screw driver glue CA064 Screw driver Screw driver 2 Assy Dmd Hsg Module with spring and adjust screw washer Keep the original position Control the 1.65mm between Hsg of fold mirror and holder by jig or torgue
  • LG RD-JT30 | Service Manual - Page 21
    7. Assemble Make sure TIR is exactly 1. put glue 727 on 4 Hsg Datum TIR on Hsg contacted related datum of 2. Put CA064 on bottom surface of hsg TIR 3. Assemble TIR on Hsg Glue 727 Activator A649 8. Assemble 1. Follow the screw Color Drum torgue on bkt 2. avoid straight load toward bearing
  • LG RD-JT30 | Service Manual - Page 22
    6. Power Alignment PFC Output voltage Output voltage range: 340 ~ 410VDC Output current: 0.025 ~ 0.45ADC Input voltage: 110VAC or 220VAC, 50 or 60Hz DC/DC Output voltage Output voltage Output voltage range Output current +3.3V 3.20 ~ 3.55V 0.5 ~ 1.7A +5V 4.75~ 5.25V 0.1 ~ 0.15A +12V 11.9~
  • LG RD-JT30 | Service Manual - Page 23
    disassemble the set 1. Lamp Module The lamp module is located at bottom of the projector. The lamp module behinds the lamp cover with 1 captive screw. After you replace the lamp module, you should reset the lamp hour counter. The switch interrupts power supply output to the projector if you remove
  • LG RD-JT30 | Service Manual - Page 24
    3. Grasp the handle on the lamp module and pull the module out of the lamp box. 2. Covers 2.1 Side bezel 1. Remove 4 screws under the projector of left side bezel, then remove it out of projector. 2. Remove 4 screws under the projector of right side bezel, then remove it out of projector. 24
  • LG RD-JT30 | Service Manual - Page 25
    2.2 Front bezel 1. Remove the 2 screws under the projector of front bezel, then remove front bezel out of projector. 2.3 Rear bezel 1. Remove 2 screws under the projector of bottom bezel. 2. Remove 8 screws and 2 jack screws on the rear bezel. 3. Pull the rear bezel out of projector. 25
  • LG RD-JT30 | Service Manual - Page 26
    2.4 Upper case 1. Pull the upper case out of projector. 2. Be sure to remove wire of keypad board, then the upper case can be removed. 26
  • LG RD-JT30 | Service Manual - Page 27
    3. Main board 1. Remove 5 screws and 10 wires. 2. Be sure to remove 1 wire, then the main board can be removed. 27
  • LG RD-JT30 | Service Manual - Page 28
    4. DC-DC Board 1. Remove 2 screws, 2 jack screws and 1 wire. 2. Be sure to remove connector from the power board. 28
  • LG RD-JT30 | Service Manual - Page 29
    5. Front Fan 1. Remove 2 screws, then the front fan can be removed. 6. Power Board 1. Remove 4 jack screws and 2 wires, then the power board can be removed. 7. Rear Fan 1. Remove 2 screws, then the rear fan can be removed. 29
  • LG RD-JT30 | Service Manual - Page 30
    8. Ballast Module 1. Remove golden screw. 2. Remove 3 wires. 3. Be sure to remove 1 wire, then the ballast module can be removed. 30
  • LG RD-JT30 | Service Manual - Page 31
    9. Lamp Blower 1. Remove 2 screws, then the lamp blower can be removed. 10. Optical engine 1. Remove 4 screws, then the optical engine can be removed. 31
  • LG RD-JT30 | Service Manual - Page 32
    between the unit and screen is within the adjustment range of the lens. 6. Why the remote control doesn't work? 1) Replace the batteries with new one. 2) Make sure there is no obstacle between the remote control and the projector. 3) Make sure nothing is blocking the front and rear receivers. 32
  • LG RD-JT30 | Service Manual - Page 33
    Guide 1.Check EE setting / Follow up EE alignment procedure 2.Check fold mirror position / re-align fold mirror to be closer to design position. 3.Check Rod lens at datum surface / put rod lens at right datum surface 4.Check Green color / If too green and over spec., change color drum 5.Change lamp
  • LG RD-JT30 | Service Manual - Page 34
    Guide System no work No No data to DDP1000 No No im age No No im age when graphics is the current input No Yes Yes Yes Yes No im age when video is the current input No Unable to download ) 4.chk U38 whether S/W inside or bad soldering 5.chk Reset IC (U40) 6. change U35(bad soldering) 7.chk Abnorm
  • LG RD-JT30 | Service Manual - Page 35
    DDP1000 Debug Guide 35
  • LG RD-JT30 | Service Manual - Page 36
    36
  • LG RD-JT30 | Service Manual - Page 37
  • LG RD-JT30 | Service Manual - Page 38
    13. Service Adjustment Guide 1. How to enter factory menu: 1) Press keypad key, Enter Power Off check state (Fig-1). (Fig-1). 2) Press keypad and key simultaneously, enter "Lamp Hour Info" layer (Fig-2). (Fig-2) Lamp Hours Info 3) Press keypad and key
  • LG RD-JT30 | Service Manual - Page 39
    white peak. In PC mode default value set 10, in Video mode is 0.Software auto set this value as source find. 1.3) DLP Brightness: adjust DLP Brightness. default setting is 36.Do not change this value . 1.4) DLP Contrast: adjust DLP Contrast. Default setting is 30.Do not change this value. 1.5) Burn
  • LG RD-JT30 | Service Manual - Page 40
    2) ADC layer (Fig-4): (only available when input source is analog RGB) (Fig-4) ADC layer 2.1) ADC Brightness: ADC brightness auto calibration black. 2.2) ADC Contrast: ADC contrast auto calibration white. 2.3) ADC Offset RGB: value to tell you calibrate result. 2.4) ADC Gain RGB: value to tell you
  • LG RD-JT30 | Service Manual - Page 41
    system fan status info layer. Lamp Sensor: lamp sensor temperature Lamp Fan Speed: lamp fan speed in RPM Blower Speed: Blower fan speed in RPM Power Sensor: Power sensor temperature Power Fan Speed: Power fan speed in RPM Fixed Fan Speed: Disable auto fan speed control and fix fan speed 3.2) PbPr
  • LG RD-JT30 | Service Manual - Page 42
    display full color blue. 5) Lamp layer (Fig-6): (Fig-6) Lamp layer 5.1 )Interpolation: De-interlace Mode 5.2) Filter: system auto select Filter. 5.3) Lamp Hour: value to tell you lamp usage hours. 5.4) Usage Hour: value to tell you unit usage hours. 5.5) Data Reset: Reset all data to default include
  • LG RD-JT30 | Service Manual - Page 43
    6) Others layer (Fig-7): (Fig-7) YPbPr layer 6.1) Gamma index: system auto select DLP gamma index 6.2) Gray value: adjust here to check DMD fail pixel. 6.3) Blue value: adjust here to check DMD fail pixel. 6.4) Scaling: tell you what scaling
  • LG RD-JT30 | Service Manual - Page 44
    14. Firmware Upgrade Procedure Step 1 Setup Flashloader in computer. Step 2 a. Connect download cable with computer and projector b. Connect power cord with projector and check power switch is OFF. Step 3 Execute FLASH loder.exe Step 4 Setting COM Port & Baud Rate 44
  • LG RD-JT30 | Service Manual - Page 45
    Step 5 a. Turn on the power switch of the projector, then the Program will target the Flash. b. HEX File Format choose Intel Extended c. File Name choose d. Operation choose Program Step 6 Start download firmware 45
  • LG RD-JT30 | Service Manual - Page 46
    Step 7 Download finished. Step 8 Turn off the power switch. 46
  • LG RD-JT30 | Service Manual - Page 47
    C7 CA 00 00 00 00 00 Operation Packet Type command PC Picture Controls Command Brightness + Brightness Contrast + Contrast - Packet Header (7 bytes) BE 16 03 C9 02 CC CC 00 00 00 00 CC×16 YPbPr Picture Controls Command Brightness + Brightness Contrast + Contrast - Packet Header (7 bytes) Packet
  • LG RD-JT30 | Service Manual - Page 48
    S-Video / Composite Video Picture Controls Command Brightness + Brightness Contrast + Contrast Color + Color Tint + Tint - Packet Header (7 bytes) Packet Payload (25 bytes) BE EF 03 19 00 95 52 03 4B
  • LG RD-JT30 | Service Manual - Page 49
    DD [ 0 :6 3] DD [0:6 3] J1 TP64 P3P3V TP66 P3P3V LOAD B-LZ DMDSER TRC-L DD3 DD9 DD5 DD11 DD21 DD17 DD19 DD15 DD4 DD0 DD8 DD1 DD6 DD2 DD7 DD13 DD43 DD51 DD47 DD53 DD63 DD57 DD45 DD55 DD62 DD59 DD58 DD50 DD49 DD61 DD60 DD48 TP70 TP72 TP74 TP76 TP78 TP80 TP82 TP84 TP86 TP88 TP90 TP92 TP94 TP96
  • LG RD-JT30 | Service Manual - Page 50
    A7 A6 A5 B1 A1 C1 D1 A4 A3 A2 A1 E1 A0 PUM - ARSTZ FL-OEZ FL-WEZ FL- CSZ PUM - ARSTZ P3P3V B4 RESET F6 BYTE G1 A4 F1 OE WE CE FLDA TA[0 :15] P3P3V VDD G4 DQ15/A-1 G6 DG14 DG13 DG12 DG11 DG10 DG9 DG8 DG7 DG6
  • LG RD-JT30 | Service Manual - Page 51
    VDRCG P2P5V R17 10K R18 R19 10K 10K VDRCG REFCLK SCLKN PCLKM DRCGPDZ U4 2 7 6 REFCLK SYNCLKN PCLKM MULT0 MULT1 15 14 MULT0 MULT1 24 23 13 S0 S1 S2 STOPZ R22 10K 12 11 PWRDNB STOPB 1 VDDIR 10 VDDIPD C11 0.1U K 16V C12 0.1U K 16V CDCR83 CLK VDD VDD VDD VDD NC 20 U15-20 3 9 16 22
  • LG RD-JT30 | Service Manual - Page 52
    Oscillator Y2 Non-Installed Yes Yes 50MHz DDR OPEN R41 0 SCL SCL0 SW1 SCL1 2240138001 SDA1 TP11 TP12 TP13 J3 3 2 1 20L2021003 DDP1000 flash download SDA SDA0 R44 0 OPEN U7 P3P3V 1 IN C77 4.7U Z 50V GND 4 GND 2 MIC39100 P2P5V C78 22U 6.3V P2P5V GENERATION DDP1000 DECOUPLING FOR
  • LG RD-JT30 | Service Manual - Page 53
    P5V VBIAS C79 0.1U K 16V C80 1U Z 0805 50V C81 1U Z 0805 50V VRST C82 1U Z 0805 50V C83 1U Z 0805 50V VCC2 C84 1U Z 0805 50V C85 1U Z 0805 50V SR1 6STROBE SR1 6M ODE1 SR1 6M ODE0 SR1 6SEL1 SR1 6SEL0 SR16ADDR3 SR16ADDR2 SR16ADDR1 SR16ADDR0 SR16OEZ S R1 6 A DDR[0: 3] U8 DMDKSR16C 44 59
  • LG RD-JT30 | Service Manual - Page 54
    Motor Timing CAP. Chart J4 TP14 G2 C C W Y3 TP15 4 CWY2 TP16 3 CWY1 TP17 2 CWCTR 1 G1 20K2170004 2X Motor Timing Capacitor Selection Guide R62 MFILT1 B 1.5MF B # of Poles C97 C98 C99 C96 C102 0.022U K 50V C103 0.33U Z 0805 50V 8 0.0033uF 0.0056uF 0.0033uF 0.01uF 12
  • LG RD-JT30 | Service Manual - Page 55
    5 D C B A 5 4 3 2 P3P3V L5 120 OHM C104 0.1U K 16V P3P3V R606 3.3K C105 0.1U K 16V COSCEN Y1 4 VDD 1 EN 60MHz OUT 3 CK60M R63 39.2F P3P3V L6 120 OHM C106 0.1U K 16V P3P3V R607 3.3K C107 0.1U K 16V MOSC EN Y2 4 VDD 1 EN 10 0M HZ OUT 3 CK100M R65 39.2F COSC 4 3 2 1 D C B A 1
  • LG RD-JT30 | Service Manual - Page 56
    5 4 3 2 1 VNE G1 VNEGRAIL 2 1 D1 MBR0540T1 C109 C110 4.7U Z 4.7U Z D C111 D2 50V 50V D 1U Z MBR0540T1 50V P12V P5V C116 4.7U Z 50V C112 4.7U Z 50V L7 22UH U12 5 4 SW VIN GND SHDN FB 1 2 3 LT1613CS5 SW FB D3 1 2 MBR0540T1 R68 100KF C115 4.7P J 50V C113 4.7U Z
  • LG RD-JT30 | Service Manual - Page 57
    5 4 3 2 1 VREF5 P12V P12V R82 27K C120 0.1U K 16V 1 Q6 MMBT2222A D D R83 P12V U14 24.3F 3 1 VCC2N1 R84 24.3F VCC2N2 VCC2N4 R85 1 VCC2 VCC2 4 R86 27K QP1A MUN5215DW1T1 R2 R1 OPA237 R87 10 Q7 1 UMT2907A C121 0.1U K 0805 50V C122 4.7U Z 1210 50V VCC2ENZ VCC2N6 R88 2KB
  • LG RD-JT30 | Service Manual - Page 58
    4 20L2021004 TP37 J9 TP38 TP39 1 2 R609 47 3 4 20L2021004 R115 3.3K R116 3.3K P3P3V U19 IR 1 4 IR 2 74 AHC1 G08 P5V D D[0:15] C IRRCVR B CONTROL P3P3V PC- R XD P5V D N5 3 BAV99 P5V D N6 3 BAV99 14 2 3 7 U20A 74 LVC125A P3P3V 14 PC-TXD A 6 5 7 U20B 74 LVC125A P5V
  • LG RD-JT30 | Service Manual - Page 59
    5 4 3 2 1 D D P5V R140 47 U111 5 VCC OE 1 A2 4Y GND 3 74 LVC1G126 IRRCVR U25 VUSB VR-A 5 4 VDD VR data 12 C136 D8 10U C137 16V TZMC5V1 0.1U K C138 C139 4.7U 0.1U K RST 20 RST-A R142 20K VUSB C These parts of this portion should be connected closely. 25V C The
  • LG RD-JT30 | Service Manual - Page 60
    5 4 3 2 1 D GHS1 R161 1K GHS GHS P5V U29 AVDD P5V U30 PVDD CAREFULY LAYOUT PVDD 3 VIN VOUT 2 C172 0.1U Z LD1 117 -3.3V C169 C173 C174 C175 C176 C177 C178 22U 6.3V 0.1U Z0.1U Z0.1U Z0.1U Z0.1U Z 0.1U Z 3 VIN VOUT 2 C170 C180 C181 D C179 LD1 117 -3.3V 22U 0.1U Z 6.3V 0.1U Z0.
  • LG RD-JT30 | Service Manual - Page 61
    VY1 U35B VY2 VY3 PW166-10TK VY4 VY5 Video Port VY6 VY7 VUV0 VUV1 VUV2 VUV3 VUV4 VUV5 R S T- SGN D -F L IP CONTROL PW RGOO D RES ETZ LAMPLIT-PW VPC 0.1U Z V3P V3P V3P V3P RESET MCKEXT DCKEXT XTALI XTALO RXD TXD D[ 0 : 1 5] CPUTMS CPUTCK CPUTDO RD WR BHEN ROMOE ROMWE RAMOE RAMWE CS0 CS1
  • LG RD-JT30 | Service Manual - Page 62
    U17-X2 R211 1 8 X1 X2 GND 3 ICS 501 820K C256 10P J C257 10P J P5V C258 0.1U Z U40 1 NC VDD 5 2 VSS 3 NC RES 4 R213 RES ET-I RESET V6300L 1K R215 2K B R218 2K U41 1 2 3 4 NC NC NC GND VCC WP SCL SDA 8 7 6 5 AT24C16 16K SCL SDA P3P3V C259 0.1U Z 2
  • LG RD-JT30 | Service Manual - Page 63
    2N3904 1 P5V R617 10K R602 47 R603 47 R614 4.7K Q109 1 1 Q108 2N3904 2N3904 SCL SDA ALERT C268 U43 14 SMBCLK 12 SMBDATA 11 ALERT 6 RESET 1 OUT1 10 FG1 9 CLK VCC 15 VCC 2 DXP1 3 DXN 4 DXP2 5 OUT2 FG2 GND GND 16 13 7 8 10K FAN1-B C263 2200P K FAN1-E C264 2200P K F AN2- BR224
  • LG RD-JT30 | Service Manual - Page 64
    6 5 4 3 2 1 P5V P5V P5V DN101 3 DN102 3 DN103 3 BAV99 BAV99 BAV99 D D J103 TP159 TP164 11 TP161 12 TP162 13 TP16014 15 TP155 TP156 6 R ED -G ND TP165 1 PC -RIN TP157 7 G RE EN -GND 2 PC-GIN TP166 8 B L UE- GNDTP167 3 TP158 PC-BIN 9 PC-5VIN 4 10 5 TP163 PC-
  • LG RD-JT30 | Service Manual - Page 65
    6 5 4 3 2 1 P5V L110 V5 P5V D 1000 OHM 0.1U 0.1U 0.1U 0.1U 0.1U 0.1U U201 C511 C510 22U C512 C513 C514 C515 C584 2 4 10V VPC -STAND YBY R527 R528 R529 47 47 OPEN V VS-I N V HS - IN 74V1G14S R530 47 INT LC-OUT P3P3V L111 V3P3 D 0.1U 1000 OHM C516 0.1U 0.1U 0.1U 0.1U
  • LG RD-JT30 | Service Manual - Page 66
    IFORMAT1 IFORMAT2 58 57 56 5 4 6 3 7 2 8 1 46 MODE OFORMAT0 OFORMAT1 OFORMAT2 61 60 59 5 4 6 3 7 2 8 1 3P3V UV[0:7] SDA R551 100 47 SDA CONTROL BLOCK N/P/IN/OUT 62 OPEN R N108 SCL R552 100 R555 0 R557 0 LLC1 48 SCL 45 44 I2CADDR0 I2CADDR1 40 PIXCLK TEST0 TEST1
  • LG RD-JT30 | Service Manual - Page 67
    6 5 4 P3P3V L115 3V3M 1000 OHM C569 C571 C572 C573 C574 C575 C576 C577 C578 C579 C570 0.1U Z 22U 0.1U Z0.1U Z0.1U Z0.1U Z 0.1U Z0.1U Z0.1U Z0.1U Z0.1U Z D 6.3V 3V3M C V-BA VMEMCLK 3V3M VWE VCAS VRAS D -A D DR0 D -A D DR1 D -A D DR2 D -A D DR3 D -A D DR4 D -A D DR5 D -A D DR6 D -A D
  • LG RD-JT30 | Service Manual - Page 68
    D -F L IP RES ETZ R624 0 P3P3V U209A 14 2 3 SN74HC74PWR 7 VCC D CLK GND Q5 Q6 P5V U208 2 4 74V1G14S RESET R625 0 LAMPLIT-PW P3P3V RESET_PW U210 1 4 2 74 AHC1 G08 R640 0 P3P3V U211 1 4 2 74AHC1G32GW R627 C603 0.1U K 100 LAMPLIT P3P3V 1N4148 2 D202 1 C606 0.1U K R620 240K
  • LG RD-JT30 | Service Manual - Page 69
    1 1 1 1 5 9 4 8 3 7 2 6 H1 HOLE-V8 5 9 4 8 3 7 2 6 H2 HOLE-V8 5 9 4 8 3 7 2 6 H3 HOLE-V8 5 9 4 8 3 7 2 6 H4 HOLE-V8 MARK1 MARK2 MARK3 MARK4 MARK5 MARK6 MARK7 OP OP OP OP OP OP OP MARK9 MARK11 MARK12 MARK14 MARK17 MARK18 MARK20 OP OP OP OP OP OP
  • LG RD-JT30 | Service Manual - Page 70
  • LG RD-JT30 | Service Manual - Page 71
    PAD1 1 2 3 4 5 FPCF_5P GND K EY_IN3 K EY_IN2 K EY_IN1 K EY_IN0 K2 1 OPTION BLANK K1 1 ENT ER AUTO K3 1 SOURCE K0 1 POW ER 5 9 4 8 3 7 2 6 H1 HOL E-V8 5 9 4 8 3 7 2 6 H2 HOL E-V8 5 9 4 8 3 7 2 6 H3 HOL E-V8 5 9 4 8 3 7 2 6 H4 H O L E-V8 MARK1 MARK2 MARK3
  • LG RD-JT30 | Service Manual - Page 72
  • LG RD-JT30 | Service Manual - Page 73
  • LG RD-JT30 | Service Manual - Page 74
  • LG RD-JT30 | Service Manual - Page 75
    Chapter 1 Engineering Specification 1.0 Optical Performance Tested under 60" (diagonal) image size unless other specified. Measurement Details refer to Appendix A. 1.1 ANSI Brightness 1.1.2 Minimum 650 1.2 Brightness Uniformity 1.2.2 Minimum 75% 1.3 Contrast
  • LG RD-JT30 | Service Manual - Page 76
    limit sample) 1.5M and 8M X Visible all over screen ( Visible level specified by limit sample Focus condition: uniformly focused by oberver
  • LG RD-JT30 | Service Manual - Page 77
    .0 Panel and Lamp Specification 10.1 DMD Type 10.2 DMD Pixels 10.3 Aspect Ratio 10.4 Lamp Type 11.0 Compatibility 11.1 PC 11.2 Video 11.3 YPbPr < 15W IEC320 C6 Spec. refer to Appendix D 0.55" DDR SVGA DMD chip 800x600 4:3 Ushio 150 Watt DC lamp PC Compatible VGA, SVGA, XGA, SXGA; Macintosh NTSC
  • LG RD-JT30 | Service Manual - Page 78
    12.2 Video Input 12.3 S-Video Input 13.0 Control Interface 13.1 IR Receiver 13.2 Mouse Emulation 14.0 User Interface 14.1 Operator Keypad 14.2 Indicators 14.3 On Screen Display 14.4 Image Inversion 14.5 Electric Zoom 14.6 Electric Keystone RCA jack (Yellow) Video amplitude 1.0 Vp-p : Impedance 75 4
  • LG RD-JT30 | Service Manual - Page 79
    definitions and Instructions for data or video projectors. The Requirements 1. When measuring contrast manually, operators should not wear can influence the measurement. 3. Measurement should be performed with Minolta Chromameter, Model CL-100, or equivalent. A1. ANSI BRIGHTNESS ANSI Lumens = (L1
  • LG RD-JT30 | Service Manual - Page 80
    A2. BRIGHTNESS UNIFORMITY Brightness Uniformity = Minimum (L10,L11,L12,L13)/ Average (L1,L2,L3,L4,L5,L6,L7,L8,L9) A3. JBMA UNIFORMITY JBMA Uniformity = Average (L1,L3,L7,L9)/ L5 A4. ANSI CONTRAST ANSI Contrast = Average lux value of the white rectangles/Average lux value of the black rectangles
  • LG RD-JT30 | Service Manual - Page 81
    A9. THROW RATIO Throw ratio = projection distance / the width of the projected image A10. ZOOM RATIO Zoom ratio = maximum / minimum image diagonal size at a fixed projection distance A10. FOCUS RANGE The minimum/maximum focus distance is the minimum/maximum projection distance (The distance between
  • LG RD-JT30 | Service Manual - Page 82
    B1. Purpose This standard establishes the environmental specification for projector related products, which defines the level of product performance and reliability in the field. It is not necessary the intent of these specification to simulate a typical user environment, but rather to provide for
  • LG RD-JT30 | Service Manual - Page 83
    B4 Test Order Atmospherics, Dynamic, and Safety test sets require separate units and can be processed in parallel. EUT (EUT: Equipment under Test) testing shall be performed serially within each set. Set 1 (2 units) Dynamics: Package Drop Package Vibration Shock Bench Drop Set 2 (2 units)
  • LG RD-JT30 | Service Manual - Page 84
    have to closed to the edge of desk (3) Noise meter high is 150 cm & title 30 degree (4) The distance between noise meter and projector is 100 cm (5) Measured four surfaces and calculated the noise value by log average. (6) We have designed excel files to calculate this value. (Avg_Noise.xls
  • LG RD-JT30 | Service Manual - Page 85
    Component Set. The Component Set provides the DLPTM .6SVGA Projector with digital imaging functionality based on Digital Micromirror Device (DMD patterns in the image. 2.7 Reset boundary artifact The reset boundary artifact is a single row of pixels on the reset group boundaries that are visibly
  • LG RD-JT30 | Service Manual - Page 86
    2.8 Pond of Mirrors (POM) POM is a rectangular array of off-state mirrors surrounding the active area. 2.9 Eyecatcher Eyecatcher's are blemishes appearing in the area outside of the Active Area. These are due to particles and various DMD window or window aperture "defects" including: digs, voids,
  • LG RD-JT30 | Service Manual - Page 87
    13 Gray 30 Screen The Gray 30 screen is used to test for the reset boundary artifact. Refer to Figure 1 for configuration. All areas of the screen Table 1. DRAWING NO 2503651 REV A SHEET 4 TABLE 1. Image Quality Specification SEQ # 1 TEST Major Dark Blemish 2 Major Light Blemish SCREEN Two
  • LG RD-JT30 | Service Manual - Page 88
    60 Gray 10 White 6 Projected Any screen Images 1. No reset boundary artifact will be visible on Microsoft Gray 30 1. No the projected image tests referenced in Table 1. Any other image quality issue not specifically defined in this document shall be acceptable. Screens < Gray7 shall not be
  • LG RD-JT30 | Service Manual - Page 89
    Appendix E Electrical Specification Content: 1. The Functions Of MICOM 1.1 General functions 1.2 System Control Functions 2. User Interface : Key Service 2.1 Local Keys 2.2 Remocon Keys 2.3 Features of Keys 15
  • LG RD-JT30 | Service Manual - Page 90
    1.1.1 Input Signals Terminology In this Spec. PC YCbCr/YPbPr AV Input Signal Type (OSD Terminolgy) RGB HD Video S-Video Input Signal Format Analog RGB 480i,480p, 720p,1080i Composite Y/C Signal Path D-Sub D-Sub Video RCA (AV Interface Board) S-Video (A/V Interface Board) 1.1.2 Auto Detection of
  • LG RD-JT30 | Service Manual - Page 91
    XGA SXGA SXGA MAC 16" 19" 21" 1024 x 768 1024 x 768 1024 x 768 1024 x 768 1024 x 768 1152 .725 kHz 48.363 kHz 60.023 kHz 68.681 kHz 1.1.3 HD Signal: 480i, 480p, 720p, 1080i A/V(Video/S-Video) Signal: NTSC / PAL / SECAM / NTSC4.43 / PAL M / PAL N Image Scaling Up/Down (OSD; GUI) RESIZE (Full
  • LG RD-JT30 | Service Manual - Page 92
    to MRS KEYSTONE : V Keystone correction Screen LOGO : displays the LG logo image for blanking the screen when system starts 1.2 System Control Functions 1.2.1 POWER CONTROL POWER ON FAN ON LAMP ON LG Logo ON Auto Image POWER OFF LAMP OFF FAN OFF MAIN POWER OFF 1.2.2 LED's color Definition
  • LG RD-JT30 | Service Manual - Page 93
    Time Display : On OSD Menu Case 1: 1400 hours < Lamp Time < 1500 hours - Display the Lamp Time over Error LEDs above. Case 2: Over 1500 hours - OSD Position : the left corner of the screen. Lamp Time Initialization : After replacing the lamp, press the Remote Keys in the order as bellows Order : Fn
  • LG RD-JT30 | Service Manual - Page 94
    is opened abnormally or when you replace used lamp with a new one, it displays lamp case_open LEDs . 1.2.3 WIRELESS MOUSE CONTROL 16 Direction, Left/Right Click, Drag Supports USB mouse we use Remocon joystick to control both Mouse point and OSD menu. When user controls the OSD menu, Mouse function
  • LG RD-JT30 | Service Manual - Page 95
    2.2 Remocon Key 2.2.1 Remocon Key Code & Structure 2.2.1.1 Remocon key code KEYS No Function Code 1 POWER $AD 2 SOURCE $0B 3 MENU $43 4 MOUSE LEFT $07 CLICK 5 MOUSE RIGHT $06 CLICK 6 MOUSE DRAG $AE 7 ENTER $44 8 BLANK $84 9 STILL $BC 10 RESIZE $79 11 MUTE $09
  • LG RD-JT30 | Service Manual - Page 96
    JOYSTIC K MOUSE DRAG VOL STILL RESIZE AUTO KEYSTONE ZOOM [ Front ] [ Rear ] 2.2.2 REMOCON & JOYSTICK IR Signal wave form 2.2.2.1 Remocon waveform : NEC format 2.2.2.1.1 Configuration of Flame START LG ID = Inverse LG ID = $FB Data Inverse Data 22
  • LG RD-JT30 | Service Manual - Page 97
    Flame interval First code Repeat code 108ms @ Repeat code 2.2.2.2 Joystick waveform & directional pointing data 2.2.2.2.1 Configuration of Flame START LG ID = SYSTEM : 0 = TV X 1 = VCR 2 = Audio 3 = Direction DATA Y DATA 2.2.2.2.2 Bit Description STAR Bit Bit 500 s 5msec 500 s 1.125ms
  • LG RD-JT30 | Service Manual - Page 98
    Mouse Pointer, we use all 16 directions code differently. But when we control Menu OSD, we only use 4 directions like below. Key code (6.3), (8,3), (A,3) (6,D), (8,D), (A,D) (3,6), (3,8), (3,A) (D,6), (D,8), (D,A) (4,4), (C,4), (4,C), (C,C) function Function Up Function Down Volume Down Volume
  • LG RD-JT30 | Service Manual - Page 99
    2.2.3 Operating ranges of the Keys keys POWER Stand By Service Repeat Menu On No OSD No Sync GUI Builder State(SDK1.9)
  • LG RD-JT30 | Service Manual - Page 100
    of menu) Enter Key : Save & Return Be set in the last selected mode when projector is turned on. Different MENU between RGB(PC) and AV(Video /S-Video) case : RGB ( PC ) VIDEO menu Contrast Brightness Color R Color G Color B Reset Range 0 ~ 100 0 ~ 100 0 ~ 100 0 ~ 100 0 ~ 100 Press Enter to
  • LG RD-JT30 | Service Manual - Page 101
    Tint -50 ~ +50 Reset Press Enter to Reset Video sub-menu OSD Display time Save & Return Be set in the last selected mode when projector is turned on. Different MENU between RGB and AV / HD / 16:9 (HD / Video / S-Video) Scaled : only in the smaller modes than XGA (1204X768) Original : real
  • LG RD-JT30 | Service Manual - Page 102
    projector manual phase adjusting )(only PC) Tracking sub-menu OSD Time : Until being cleared. 2.3.4 - 5 Mouse Left / Right Key Operates as a mouse left/right click button when remote mouse function is used. But mouse drag function is implemented by other drag on/off toggle key in remote controller
  • LG RD-JT30 | Service Manual - Page 103
    is lower than SVGA(800x600). ( only PC : Scaled / Original ) - HD / Video / S-Video : 4 : 3 / 16 : 9 2.3.14 Auto Tracking Key (Local & Remote) Only PC source. Auto Tracking function can be executed by Auto Tracking Key in remote controller. And it makes screen look good and takes several seconds
  • LG RD-JT30 | Service Manual - Page 104
    2.3.15-16 Zoom Up/Down Key Zoom: 25 steps Zooming up/down by Zoom Up/Down KEY Scrolling by Joystick Zoom OSD Display Time : 5 seconds. 2.3.18 JOYSTICK Mouse 16 directions, Volume + / Moves cursor or adjusts selected item value when OSD menu is on. Scrolls the screen when zoom function is on. Moves
  • LG RD-JT30 | Service Manual - Page 105
    Appendix F Power Supply Specification F.1 Input Power Specification Specification Input Voltage Range Frequency Range Power Consumption Regulation Efficiency Description The unit shall meet all the operating requirements with the range 90 ~ 264 VAC The
  • LG RD-JT30 | Service Manual - Page 106
    KEOC 2 55.J4906.001 PCBA CHIP/BD LG JT30 3 60.J4909.001 ASSY COLOR DRUM MODULE JT30 4 55.J4922.001 PCBA SENSOR/BD LG JT30 5 60.J4910.001 ASSY LENS C1,C2 JT30 PROT 6 60.J4911.001 ASSY FOLD MIRROR MODULE JT30 7 60.J4912.CG1 ASSY CSD RD-JT30 LAMP MODULE 8 65.J4901.011 PROJECTION LENS ZOOM
  • LG RD-JT30 | Service Manual - Page 107
    LG Projector RD-JT30 99.J4977.L31 NO PART NO DESCRIPTION 1 35.80J49.091 LENS ROD 6.1X4.4X40 JT30 2 55.J4906.001 PCBA CHIP/BD LG JT30 3 60.J4911.001 ASSY FOLD MIRROR MODULE JT30 4 35.81J49.001 Glass front UVAR JT30 PROT 5 55.J4922.001 PCBA SENSOR/BD LG JT30 6 65.J4905.011 COLOR DRUM
  • LG RD-JT30 | Service Manual - Page 108
    36 49.J5501.001 MANUAL USER LG JT31/30 37 49.J5502.001 QUICK START GUIDE LG JT31/30 38 27.01218.191 CORD H03VV-F3G(MI) 2500MM .72918.001 CABLE A/V RCA(R,W,Y)1500MM 46 50.72920.011 C.A MIN-DIN 4P S-VIDEO W/S 15 47 98.J5501.001 REMOTE CONTROLLER LG 6710V008 48 98.J1302.041 SOFT CASE SL705X
  • LG RD-JT30 | Service Manual - Page 109
    Chapter 3 Production Description and operation 1. Shipping Content 35
  • LG RD-JT30 | Service Manual - Page 110
    2. Product Description 36
  • LG RD-JT30 | Service Manual - Page 111
    37
  • LG RD-JT30 | Service Manual - Page 112
    3. Remote Control Description 38
  • LG RD-JT30 | Service Manual - Page 113
    39
  • LG RD-JT30 | Service Manual - Page 114
    40
  • LG RD-JT30 | Service Manual - Page 115
    4. Installation 41
  • LG RD-JT30 | Service Manual - Page 116
    42
  • LG RD-JT30 | Service Manual - Page 117
    5. Operation A. User OSD 43
  • LG RD-JT30 | Service Manual - Page 118
    44
  • LG RD-JT30 | Service Manual - Page 119
    45
  • LG RD-JT30 | Service Manual - Page 120
    46
  • LG RD-JT30 | Service Manual - Page 121
    47
  • LG RD-JT30 | Service Manual - Page 122
    6. Packing Description 48
  • LG RD-JT30 | Service Manual - Page 123
    49
  • LG RD-JT30 | Service Manual - Page 124
    50
  • LG RD-JT30 | Service Manual - Page 125
    7. Appearance Description 51
  • LG RD-JT30 | Service Manual - Page 126
    52
  • LG RD-JT30 | Service Manual - Page 127
    53
  • LG RD-JT30 | Service Manual - Page 128
    8. Lamp Replacement 54
  • LG RD-JT30 | Service Manual - Page 129
    9. Shutdown 55
  • LG RD-JT30 | Service Manual - Page 130
    Chapter 4 Circuit Operation Theory JT31 DMD projector being using the SVGA DMD Engine made by BenQ, it includes front the front-end circuitry to DMD chip. The peripheral circuitry include fan control, LED control, thermal detect, and so on. 1. Whole system circuitry 1.1 Whole system block diagram
  • LG RD-JT30 | Service Manual - Page 131
    . To support the RDRAM a Direct Rambus clock generator CDCR83 is utilized. It can transfer input clock from 50MHz to 400MHz. The color Drum motor driver A8904 is 3-phase, 8-pole,Y configuration brush-less DC controller with back-EMF sensing. It provides a serial port to allow the user to program
  • LG RD-JT30 | Service Manual - Page 132
    2. Frond end circuitry 2.1 Frond end block diagram D_SUB S-Video RCA
  • LG RD-JT30 | Service Manual - Page 133
    level , about 3.3V. The ADC , AD9883 could supports up to pixel rate at about 140MHZ , which is which are Graphic port ( VGA format ) and Video port ( video decoder format ). - Frame rate conversion , the stability of the system. There is some control signals list below DCLK - pixel clock output
  • LG RD-JT30 | Service Manual - Page 134
    that the Lamp is ON or OFF LED1, LED2 - Output to enable the LED ON or OFF . IRRCVR0 - System IR input to CPU as remote control signals . MCKEXT - Memory clock to CPU . DCKEXT - Data clock to for Scaling . I2C_SDA , I2C_SCL - I2C format data transfer line . VPC3230 Video Decoder and FLI2200
  • LG RD-JT30 | Service Manual - Page 135
    3. DMD driver circuitry 3.1 DMD driver block diagram
  • LG RD-JT30 | Service Manual - Page 136
    on indication for DDP1000 Lamp on indication for PW166 5. JT31 Normal Lamp off Sequence Signal RESETZ LAMPEN LAMPLIT Voltage Change Description High Low DDP1000 goes into a reset state. High Low Lamp turn off. High Low Indicate lamp off. PWRGOOD High Low DMD is parked 6. Power 6.1. Block
  • LG RD-JT30 | Service Manual - Page 137
    6.2. general specification Input voltage : AC 90~264V Input Frequency: 47~63Hz Input power: 230W max The power circuit shall supply DC power outputs as followings: Output Voltage
  • LG RD-JT30 | Service Manual - Page 138
    6.3.3 Power Factor Correction
  • LG RD-JT30 | Service Manual - Page 139
    The Power Factor Controller IC is L6561 , The function of each pins described as follow. pin 1 : voltage feedback input pin 5 : zero current detect input pin 2 : compensation pin 6 : gnd pin 3 :
  • LG RD-JT30 | Service Manual - Page 140
    6.3.6 Power module IC
  • LG RD-JT30 | Service Manual - Page 141
    adapt a single feedback circuit of 12.7V. It used IC701 for voltage regulation and IC691 for primary-secondary isolation. The output voltage will be controlled by IC690 pin 1 (feedback) ,the duty cycle of MOSFET will be decided to control the output voltage. 6.3.8 Secondary rectifier and filter
  • LG RD-JT30 | Service Manual - Page 142
    Chapter 5 Alignment Procedure 1.DMD Bias Voltage Alignment Equipment:None Procedure: 1. Watch DMD "Bias Voltage Bin" Label (Example: 8060-7bbc DDDD XXXXXXX M ) 2. Switch the DIP switch (SW2) on Main board according to the red character on the DMD chip 3. 00: E ON 01: D 10: C 11: B 0 0 68
  • LG RD-JT30 | Service Manual - Page 143
    2.Color Wheel Delay Alignment Equipment: - Battery Biased Silicon PIN Detector - Oscilloscope - Probe Procedure: 1. Probe impedance matches 50 ohm 2. Open Factory OSD, and select color wheel delay item 3. Leave the image pure red (DMD red curtain) 4. Put the detector on the screen that red image was
  • LG RD-JT30 | Service Manual - Page 144
    3.PC Color Alignment Procedure Equipment: - Pattern generator Procedure: 1. Connect power, D-sub, into projector. 2. Change pattern generator to pattern 43 5-DISC. 3. Light on projector 4. Enter factory mode. 5. Choose ADC Brightness item to Press. 6. Choose ADC Contrast item to Press. 7. Change
  • LG RD-JT30 | Service Manual - Page 145
    ( CL-100) Procedure: (a). Offset adjustment: 1. Black coordinate spec: Osram lamp Oshio lamp x0 0.281 0.01 0.313 0.01 y0 0.311 0.01 the Pr offset is the rotational action. 3. Connect power, YPbPr Video into projector. 4. Change Timing and pattern of pattern generator : Timing : 480P(H:31.54
  • LG RD-JT30 | Service Manual - Page 146
  • LG RD-JT30 | Service Manual - Page 147
    ROD by screw driver Assemble clip rod top Assemble clip rod side Review Equipment Screw driver glue CA064 Screw driver Screw driver 2 Assy Check on Dmd Module Hsg with spring and adjust screw washer Keep the original Control the 1.65mm between position of fold mirror Hsg and holder by jig
  • LG RD-JT30 | Service Manual - Page 148
    6. Assemble C3 module on hsg Assemble C3 module on hsg Screw Driver 7. Assemble Make sure TIR is exactly 1. put glue 727 on 4 Hsg Datum TIR on Hsg contacted related datum of 2. Put CA064 on bottom surface of hsg TIR 3. Assemble TIR on Hsg Glue 727 Activator A649 8. Assemble 1. Follow the
  • LG RD-JT30 | Service Manual - Page 149
    6. Power Alignment 1. PFC Output voltage Output voltage range: 340 ~ 410VDC Output current: 0.025 ~ 0.45ADC Input voltage: 110VAC or 220VAC, 50 or 60Hz 2. DC/DC Output voltage Output voltage Output voltage range Output current +3.3V 3.20 ~ 3.55V 0.5 ~ 1.7A +5V 4.75~ 5.25V 0.1 ~ 0.15A +12V
  • LG RD-JT30 | Service Manual - Page 150
    Chapter 6 Trouble Shooting 76
  • LG RD-JT30 | Service Manual - Page 151
    Trouble Shooting Guide 1. Brightness 1. Chk EE setting / Follow up EE alignment procedure 2. Chk fold mirror position / re-align fold mirror to be closer to design position. 3. Chk Rod lens at datum surface / put rod lens at right datum surface 4. Chk Green color / If too green and over spec
  • LG RD-JT30 | Service Manual - Page 152
    Guide System no work No No data to DDP1000 No No im age No No image when graphics is the current input No Yes Yes Yes Yes No im age when video is the current input No Unable to download Hz) 4.chk U38 whether S/W inside or bad soldering 5.chk Reset IC (U40) 6. change U35(bad soldering) 7.chk Abnorm
  • LG RD-JT30 | Service Manual - Page 153
    DDP1000 Debug Guide 79
  • LG RD-JT30 | Service Manual - Page 154
    80
  • LG RD-JT30 | Service Manual - Page 155
    81
  • LG RD-JT30 | Service Manual - Page 156
    POWER BOARD trouble shooting guide
  • LG RD-JT30 | Service Manual - Page 157
    MARK16 MARK17 MARK18 MARK19 MARK20 MARK21 OP OP OP OP OP OP OP MARK22 MARK23 MARK24 OP OP OP Benq Corporation Project Code Model Name OEM/ODM Model Name A 99.J5577.001 JT31 NA Title MAIN BOARD Size PC B P/N 48.J5501.S02 P C B R ev. Do cu ment Number S02 304-C01
  • LG RD-JT30 | Service Manual - Page 158
    PUM-ARSTZ FL-OEZ FL-WEZ FL-CSZ PUM-ARSTZ P3P3V B4 RESET F6 BYTE G1 A4 F1 OE WE CE VDD G4 DQ15/A-1 DG14 C7 10P J LMC7225 C8 0.1U K R13 10K 2P5VREF R16 6.8K Benq Corporation Project Code Model Name OEM/ODM Model Name A 99.J5577.001 JT31 NA Title MAIN BOARD Size PC B P/N 48.
  • LG RD-JT30 | Service Manual - Page 159
    õ C25 150U 6.3V C26 0.1U K 16V C27 0.1U K 16V C28 0.1U K 16V RDRAM VDD DECOUPLING CAPS C29 0.1U K 16V Benq Corporation Project Code Model Name OEM/ODM Model Name A 99.J5577.001 JT31 NA Title MAIN BOARD Size PC B P/N 48.J5501.S02 P C B R ev. Do cu ment Number S02 304-C01
  • LG RD-JT30 | Service Manual - Page 160
    TP11 TP12 TP13 J3 3 2 1 20L2021003 SDA B R44 0 OPEN DDP1000 flash download SDA0 U7 P3P3V 1 IN C77 4.7U Z 50V GND 4 GND 2 MIC39100 M13 M14 M15 M16 L11 L12 L13 L14 L15 L16 Benq Corporation Project Code Model Name OEM/ODM Model Name A 99.J5577.001 JT31 NA Title MAIN BOARD Size PC B
  • LG RD-JT30 | Service Manual - Page 161
    D D2 U5-AD11 5 12 U5-AC13 6 11 U5-AC12 7 10 U5-AE12 8 9 TRC-L SCTRL-L LOADB-LZ DCLK-L B 22 Benq Corporation A Project Code Model Name OEM/ODM Model Name A 99.J5577.001 JT31 NA Title MAIN BOARD Size PC B P/N 48.J5501.S02 P C B R ev. Do cu ment Number S02 304-C01
  • LG RD-JT30 | Service Manual - Page 162
    G1 20K2170004 2X Motor Timing Capacitor Selection Guide R62 MFILT1 B 1.5MF B # Model Name 99.J5577.001 JT31 NA Title MAIN BOARD Size PC B P/N 48.J5501.S02 P C B R ev. Do cu ment Number S02 304-C01 Re v. 0 Date: Wednesday, November 20, 2002 Sheet Pre pared By Reviewed
  • LG RD-JT30 | Service Manual - Page 163
    A OEM/ODM Model Name 99.J5577.001 JT31 NA Title MAIN BOARD Size PC B P/N 48.J5501.S02 P C B R ev. Do cu ment Number S02 304-C01 Re v. 0 Date: Wednesday, November 20, 2002 Sheet Pre pared By Reviewed By 7 o f 20 Approved By ANGEL HU DAVID HN LIN H.C. TSOU 4 3 2 1
  • LG RD-JT30 | Service Manual - Page 164
    1 6 1K VNEGSENB Q5A 5 MMDT2907A 0.01U M 1 VNEGRAIL UMT2907A Q4 A 5 VNRSN5 R80 20KB R81 4.75KB Benq Corporation Project Code 99.J5577.001 Model Name JT31 A OEM/ODM Model Name NA Title MAIN BOARD Size PC B P/N 48.J5501.S02 P C B R ev. Do cu ment Number S02 304-C01 Re
  • LG RD-JT30 | Service Manual - Page 165
    Name A OEM/ODM Model Name 99.J5577.001 JT31 NA Title MAIN BOARD Size PC B P/N 48.J5501.S02 P C B R ev. Do cu ment Number S02 304-C01 Re v. 0 Date: Wednesday, November 20, 2002 Sheet Pre pared By Reviewed By 9 o f 20 Approved By ANGEL HU DAVID HN LIN H.C. TSOU 2 1
  • LG RD-JT30 | Service Manual - Page 166
    P3P3V U19 IR 1 4 IR 2 74AHC1G08 P5V D D[0:15] C IRRCVR B CONTROL P3P3V 14 PC-RXD P5V 2 3 P5V 7 U20A 74LVC125A DN5 3 BAV99 DN6 3.3K 120 OHM 120 OHM F RONTLOCK Benq Corporation Project Code Model Name A OEM/ODM Model Name 99.J5577.001 JT31 NA Title MAIN BOARD Size PC B
  • LG RD-JT30 | Service Manual - Page 167
    OEM/ODM Model Name 99.J5577.001 JT31 NA Title MAIN BOARD Size PC B P/N 48.J5501.S02 P C B R ev. Do cu ment Number S02 304-C01 Re v. 0 Date: Wednesday, November 20, 2002 Sheet Pre pared By Reviewed By 11 o f 20 Approved By ANGEL HU DAVID HN LIN H.C. TSOU 5 4 3 2 1
  • LG RD-JT30 | Service Manual - Page 168
    OEM/ODM Model Name 99.J5577.001 JT31 NA Title MAIN BOARD Size PC B P/N 48.J5501.S02 P C B R ev. Do cu ment Number S02 304-C01 Re v. 0 Date: Wednesday, November 20, 2002 Sheet Pre pared By Reviewed By 12 o f 20 Approved By ANGEL HU DAVID HN LIN H.C. TSOU 5 4 3 2 1
  • LG RD-JT30 | Service Manual - Page 169
    10TK VY4 VY5 Video Port VY6 VY7 RST-SGN D-FLIP CONTROL PWRGOOD RESETZ LAMPLIT- V3P V3P V3P A0 A1 RESET A2 A3 MCKEXT A4 DCKEXT CPUTMS CPUTCK CPUTDO RD WR BHEN ROMOE 0.1U Z 3 2 Benq Corporation Project Code Model Name A OEM/ODM Model Name 99.J5577.001 JT31 NA Title MAIN BOARD
  • LG RD-JT30 | Service Manual - Page 170
    5 2 VSS 3 NC RES 4 R213 RESET-I RESET V6300L 1K R215 2K B R218 2K U41 Model Name JT31 A OEM/ODM Model Name NA Title MAIN BOARD Size PC B P/N 48.J5501.S02 P C B R ev. Do cu ment Number S02 304-C01 Re v. 0 Date: Wednesday, November 20, 2002 Sheet Pre pared By Reviewed
  • LG RD-JT30 | Service Manual - Page 171
    C268 U43 14 12 SMBCLK SMBDATA 11 ALERT 6 RESET 1 OUT1 10 FG1 9 CLK VCC VCC 15 Model Name 99.J5577.001 JT31 NA Title MAIN BOARD Size PC B P/N 48.J5501.S02 P C B R ev. Do cu ment Number S02 304-C01 Re v. 0 Date: Wednesday, November 20, 2002 Sheet Pre pared By Reviewed
  • LG RD-JT30 | Service Manual - Page 172
    TP168 L109 J12 2 COMPOSIT1 R525 18 COMPOSIT COMPOSIT A BEAD 1 2210278001 P5V 2 1 C509 200P K DN107 BAV99 6 5 4 3 Benq Corporation Project Code Model Name A OEM/ODM Model Name 99.J5577.001 JT31 NA Title MAIN BOARD Size PC B P/N 48.J5501.S02 P C B R ev. Do cu ment
  • LG RD-JT30 | Service Manual - Page 173
    C589 27P J G AIN R540 75 C590 27P J C542 0.22U K C543 0.22U K A RAIN R541 75 C591 27P J 6 5 4 3 B Benq Corporation Project Code Model Name A OEM/ODM Model Name 99.J5577.001 JT31 NA Title MAIN BOARD Size PC B P/N 48.J5501.S02 P C B R ev. Do cu ment Number S02 304
  • LG RD-JT30 | Service Manual - Page 174
    3P3V UV[0:7] SDA R551 100 47 SDA CONTROL BLOCK N/P/IN/OUT 62 OPEN RN108 SCL Model Name 99.J5577.001 JT31 NA Title MAIN BOARD Size PC B P/N 48.J5501.S02 P C B R ev. Do cu ment Number S02 304-C01 Re v. 0 Date: Wednesday, November 20, 2002 Sheet Pre pared By Reviewed
  • LG RD-JT30 | Service Manual - Page 175
    OEM/ODM Model Name 99.J5577.001 JT31 NA Title MAIN BOARD Size PC B P/N 48.J5501.S02 P C B R ev. Do cu ment Number S02 304-C01 Re v. 0 Date: Wednesday, November 20, 2002 Sheet Pre pared By Reviewed By 19 o f 20 Approved By ANGEL HU DAVID HN LIN H.C. TSOU 6 5 4 3 2 1
  • LG RD-JT30 | Service Manual - Page 176
    RESETQ P3P3V U211 1 4 2 P5V 74AHC1G32GW C U208 2 4 74V1G14S RESET R625 0 OPEN P3P3V LAMPLIT-PW R627 C603 0.1U K 100 LAMPLIT R621 16V 10K D204 16V 1 D C B Benq Corporation A Project Code Model Name OEM/ODM Model Name A 99.J5577.001 JT31 NA Title MAIN BOARD Size PC B
  • LG RD-JT30 | Service Manual - Page 177
  • LG RD-JT30 | Service Manual - Page 178
    Form No: ACM0-0B-003-24 (010918)
  • LG RD-JT30 | Service Manual - Page 179
    Form No: ACM0-0B-003-24 (010918)
  • LG RD-JT30 | Service Manual - Page 180
    Form No: ACM0-0B-003-24 (010918)
  • LG RD-JT30 | Service Manual - Page 181
    Form No: ACM0-0B-003-24 (010918)
  • LG RD-JT30 | Service Manual - Page 182
    Form No: ACM0-0B-003-24 (010918)
  • LG RD-JT30 | Service Manual - Page 183
    Form No: ACM0-0B-003-24 (010918)
  • LG RD-JT30 | Service Manual - Page 184
    Form No: ACM0-0B-003-24 (010918)
  • LG RD-JT30 | Service Manual - Page 185
    Form No: ACM0-0B-003-24 (010918)
  • LG RD-JT30 | Service Manual - Page 186
    Form No: ACM0-0B-003-24 (010918)
  • LG RD-JT30 | Service Manual - Page 187
  • LG RD-JT30 | Service Manual - Page 188
  • LG RD-JT30 | Service Manual - Page 189
  • LG RD-JT30 | Service Manual - Page 190
  • LG RD-JT30 | Service Manual - Page 191
  • LG RD-JT30 | Service Manual - Page 192
  • LG RD-JT30 | Service Manual - Page 193
  • LG RD-JT30 | Service Manual - Page 194
  • LG RD-JT30 | Service Manual - Page 195
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
  • 84
  • 85
  • 86
  • 87
  • 88
  • 89
  • 90
  • 91
  • 92
  • 93
  • 94
  • 95
  • 96
  • 97
  • 98
  • 99
  • 100
  • 101
  • 102
  • 103
  • 104
  • 105
  • 106
  • 107
  • 108
  • 109
  • 110
  • 111
  • 112
  • 113
  • 114
  • 115
  • 116
  • 117
  • 118
  • 119
  • 120
  • 121
  • 122
  • 123
  • 124
  • 125
  • 126
  • 127
  • 128
  • 129
  • 130
  • 131
  • 132
  • 133
  • 134
  • 135
  • 136
  • 137
  • 138
  • 139
  • 140
  • 141
  • 142
  • 143
  • 144
  • 145
  • 146
  • 147
  • 148
  • 149
  • 150
  • 151
  • 152
  • 153
  • 154
  • 155
  • 156
  • 157
  • 158
  • 159
  • 160
  • 161
  • 162
  • 163
  • 164
  • 165
  • 166
  • 167
  • 168
  • 169
  • 170
  • 171
  • 172
  • 173
  • 174
  • 175
  • 176
  • 177
  • 178
  • 179
  • 180
  • 181
  • 182
  • 183
  • 184
  • 185
  • 186
  • 187
  • 188
  • 189
  • 190
  • 191
  • 192
  • 193
  • 194
  • 195