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LG 27BK4 series, Service Manual, Page: 7 / 26

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LG 27BK4 series Service Manual Download Page 7

EAT62633902  /  LGM238LC4-SLA4 
Cell:EAJ63109401  /LM238WF1SJK1 
BLU  :

 

EBV61158019 

 
24MK430(24BK430)H***KMVN 
LGD  Normal 
EAJ63909101  LM238WF1-SLK1 
 
24MK400H(24BK400H)***PJVN 
BOE BMS 
EAT63415901 / LGM236AB12 
Cell : EAJ62549701 HM236WU3-101 
BLU : EBV60978047 
 
27MK400(27BK400)H***VMVN 
AUO FHD TN SNB 
EAJ64447601  /  M270HTN025 
 
27MK430H***FEVN 
BOE BMS 
EAT62953221 / LGM270BC4 
Cell : EAJ64670501 MV270FHB-N20 
BLU : EBV61138218 
 

Summary of Contents for 27BK4 series

Page 1: ...Internal Use Only CHASSIS LM 8AA MODEL 27BK4 SERIES CAUTION BEFORE SERVICING THE CHASSIS READ THE SAFETY PRECAUTIONS IN THIS MANUAL SERVICE MANUAL LED MONITOR SERVICE MANUAL P NO MFL69406845 1806 REV01 ...

Page 2: ...k 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 return path to th...

Page 3: ...K400 24MK400 24BK400 27MK430 Checked OK 3 Sale region Worldwide Checked OK 4 Feature 20MK400 19 5 Wide LCD MNT Checked OK 22MK430 22BK430 22MK400 22BK400 21 5 Wide LCD MNT Checked OK 24MK430 24BK430 24MK400 24BK400 23 8 Wide LCD MNT 23 6 Wide LCD MNT Checked OK 27MK400 27BK400 27MK430 27 Wide LCD MNT Checked OK 5 Chassis Name LM8AA Checked OK LM8IA 20MK400A Checked OK ...

Page 4: ... 10 Checked OK SET accessory P N EAD00926125 20MK400A is not suppoted CABLE 100Ω 10Ω CONNECTOR 100Ω 15Ω D sub Length 1 5m 0 05m Shape Detachable Type Color Black Weight 0 095kg 10 Checked OK 20MK400A support CABLE 75Ω 5Ω CONNECTOR 50Ω 5Ω Checked OK 8 Power 24MK430 24BK430 27MK400 27BK400 24MK400H 24BK400H 27MK430H 27B K430 Output DC 19V 1 3A 24W Adapter Color Black Weight 154g 10 without vinyl bag...

Page 5: ...400H 22BK400 Output DC 19V 0 84A 16W Adapter Color Black Weight 126g 10 without vinyl bag 9 Applying module list 20MK430H VMVN 20MK400A AUO HD TN EAJ64447601 M195XTN01 0 22MK430 22BK430 H MJVN LGD cDMS EAT62113804 LGM215DA41 EAT63400002 MV215FHB N30 Cell EAJ63849701 LM215WF3SLS 1 22MK430 22BK430 H DJVN Checked OK Refer to Suffix standard ...

Page 6: ...0 22BK430 H EJVN BOE cDMS EAT63400003 MV215FHB N31 Cell EAJ64410301 MV215FHB N31 BLU EBV60978086 22MK430 22BK430 H KMVN LGD Normal EAJ63849701 LM215WF3 SLS1 22MK400H 22BK400 FJVN BOE BMS EAT63474602 LGM215AB02 Cell EAJ63989701 HM215WU3 501 BLU EBV60978050 24MK430 24BK430 H MJVN LGD cDMS ...

Page 7: ...KMVN LGD Normal EAJ63909101 LM238WF1 SLK1 24MK400H 24BK400H PJVN BOE BMS EAT63415901 LGM236AB12 Cell EAJ62549701 HM236WU3 101 BLU EBV60978047 27MK400 27BK400 H VMVN AUO FHD TN SNB EAJ64447601 M270HTN025 27MK430H FEVN BOE BMS EAT62953221 LGM270BC4 Cell EAJ64670501 MV270FHB N20 BLU EBV61138218 ...

Page 8: ...27BK430H DNVN BOE Module EAJ63948301 MV270FHM N20 24MK430H DJVN BOE cDMS EAT62953226 LGM238BC4 Cell EAJ64771101 S EAJ6477110 2 MV238FHB N30 BLU EBV61158027 ...

Page 9: ...xels 31 5 37 5 840 640 16 64 120 Checked OK 640 x 480 V Lines 75 500 480 1 3 16 Checked OK 4 H Pixels 40 0 37 879 1056 800 40 128 88 Checked OK 800 x 600 V Lines 60 317 628 600 1 4 23 Checked OK 5 H Pixels 49 5 46 875 1056 800 16 80 160 Checked OK 800 x 600 V Lines 75 0 625 600 1 3 21 Checked OK 6 H Pixels 65 0 48 363 1344 1024 24 136 160 Checked OK 1024 x 768 V Lines 60 0 806 768 3 6 29 Checked O...

Page 10: ...50 2200 1920 88 44 148 Checked OK 1920 x 1080 V Lines 60 1125 1080 4 5 36 Checked OK HDMI 1 Main Recommended Timing Mode section polarity DOT CLOCK MHz Frequency kHz Hz Total Period E Display A Front Porch D Sync C Back Porch B Measurement Result Resolution 1 H Pixels 28 321 31 468 900 720 18 108 54 Checked OK 720 X 400 V Lines 70 08 449 400 12 2 35 Checked OK 2 H Pixels 25 175 31 469 800 640 16 9...

Page 11: ... 75 029 800 768 1 3 28 Checked OK 8 H Pixels 108 0 67 500 1600 1152 64 128 256 Checked OK 1152 x 864 V Lines 75 000 900 864 1 3 32 Checked OK 9 H Pixels 108 0 63 981 1688 1280 48 112 248 Checked OK 1280 x 1024 V Lines 60 023 1066 1024 1 3 38 Checked OK 10 H Pixels 135 0 79 976 1688 1280 16 144 248 Checked OK 1280 x 1024 V Lines 75 035 1066 1024 1 3 38 Checked OK 11 H Pixels 146 25 65 290 2240 1680...

Page 12: ...V Lines 74 97 1119 1080 3 5 31 Checked OK 6 1 2 HDMI Video input Factory support mode Preset Mode Horizontal frequency KHz Vertical frequency Hz HDMI 1 480P 31 5 60 O 2 576P 31 25 50 O 3 720P 37 5 50 O 4 720P 45 60 O 5 1080P 56 25 50 O 6 1080P 67 5 60 O Recommend Mode ...

Page 13: ...1 Monitor JIGs Novatek JIG P N RAD32227901 LG Monitor JIG P N RAD33028001 1 How to connect 1 1 Connect the PC USB cable and HDMI or D sub Cable as like below picture Monitor PC ...

Page 14: ...I cable instead of HDMI cable Connect to PC Set Monitor Connect to Monitor Connect to PC 1 Kinds of ISP Program 1 1 Install program EasyWriter_20160505 exe with below sequence Right click of Install program then install with as administrator Reboot PC Open NVT EasyWriter program then connect zig and USB cable Novatek Suffix V Novatek JIG P N RAD32227901 ...

Page 15: ...etup ISP Tool on Option 2 2 change the setting as like below image and then click Confirm Change button Select ISP Jig type depends on board Novatek P N RAD32227901 LG Monitor JIG P N RAD33028001 Select FTDI Mode Select NvtEasyUSBMode Monitor Monitor PC PC ...

Page 16: ... 2 3 After start EasyWriter Tool like below image on Option tab lick the WP Pin Select 2 4 Check the WP pin slection For the rest it must be unchecked And then click the save ...

Page 17: ... bank0 bank1 bank2 bank3 2 6 After start EasyWriter Tool like below image on Option tab check FE2P Mode Enable 2 7 click Load file icon and select the download file hex or bin Caution If not checked FE2P Mode Enable EDID and HDCP key will be deleted ...

Page 18: ... 2 8 click Auto icon for download new File on Monitor 2 9 check the end message that means completed download ...

Page 19: ...BLOCK DIAGRAM LVDS SCALER NT68771V Panel 1920x1080 FLASH 8M SPI Control Key Key1 Key2 TJ5631 LDO 3 3V 1 2V MP2331 DC DC 5V Headphone OUT HDMI RGB 5V ...

Page 20: ... by in the Schematic Diagram and EXPLODED VIEW It is essential that these special safety parts should be replaced with the same components as recommended in this manual to prevent Shock Fire or other Hazards Do not modify the original design without permission of manufacturer IMPORTANT SAFETY NOTICE 540 or 330 900 910 200 400 510 300 500 ...

Page 21: ... the monitor s screen face down on a soft plane Fig 2 use a coin to release the screw and disassemble the base Fig 3 use screw driver to release the 2 screw and disassemble the Stand body Fig 4 use screw driver to release 1 EA screw ...

Page 22: ... Disassemble method Fig 5 detach the latches of 3 edges to disassemble the back cover Fig 7 Disassemble the module and cabinet Fig 6 detach the tapes latches and lines 27BK400H 27BK430H ...

Page 23: ... GUIDE 1 NO POWER 5HSODFH 1 KHFN 3 9ROWDJH HYHO 9 KHFN 3RZHU FRQQHFWRU 2 5HSODFH 3RZHU RDUG 1 KHFN 2XWSXW 9ROWDJH HYHO 9 9 5HSODFH 5HFKHFN 1 KHFN ORFN 0 KHFN 2XWSXW 9ROWDJH HYHO 96 5HSODFH 5HFKHFN 1 5HSODFH ODVK 0HPRU ...

Page 24: ... DEOH 1 0RGXOH DFN LJKW 2Q KHFN 5HSODFH 0DLQ 6FDOHU 1 1 KHFN 3DQHO 3RZHU 9 3 KHFN 2XWSXW 9 5HSODFH 5HFKHFN 1 KHFN 3DQHO ORFN 3 KHFN 5HSDLU 0DLQ 1 KHFN DEOH IRU DPDJH RU 2SHQ RQGXFWRUV KHFN ULYHU 3 5HSODFH 7 RQ RDUG RU 0RGXOH ...

Page 25: ...3 No Video y Gt G z GOpjXWWP j G G G p G G f j G qrYWWSYWXSYWYSwYW WG G G G G k y Gj u j GpYjG z OqrYWWSYWXSY WYSwYWW y Gk GlkpkG k u j Gk Gj G Gk G G v Gj ...

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