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Carrying The TV

To prevent dropping the TV and causing serious injury, you must follow these

guidelines:

Disconnect all cables before carrying the TV.

Carrying the large size TV requires at least two or three people.

When you carry the TV, place your hands as illustrated and hold it securely.

Do not put stress on the LCD panel and the frame around the screen.

When carrying the TV, do not subject it to shocks, vibration, or excessive force.

When lifting or moving the TV, hold it securely from the bottom. Place your palm

directly under the panel.

Installed on the wall

Installed with stand

ViewSonic Corporation

Confidential - Do Not Copy

VT2645-M

Содержание VS12675

Страница 1: ...Service Manual ViewSonic VT2645 M Model No VS12675 26 LCD TV VT2645 M_SM Rev 1b Apr 2010 ViewSonic 381 Brea Canyon Road Walnut California 91789 USA 800 888 8583...

Страница 2: ...any warranty of merchantability or fitness for any particular purpose Further ViewSonic reserves the right to revise this publication and to make changes from time to time in the contents hereof witho...

Страница 3: ...n 6 3 Function Description 10 4 Block Diagram 16 5 Exploded Diagram and Exploded Parts List 17 6 Disassembly Procedure 20 7 Recommended Spare Parts List 33 8 BIOS Firmware Update SOP 34 9 Trouble Shoo...

Страница 4: ...s apparatus to rain or moisture Disconnect Device The Mains Plug or An Appliance Coupler The mains plug or an appliance coupler is used as the disconnect device for disconnection from the mains the di...

Страница 5: ...ou carry the TV place your hands as illustrated and hold it securely Do not put stress on the LCD panel and the frame around the screen When carrying the TV do not subject it to shocks vibration or ex...

Страница 6: ...glass or crystalline liquid which is toxic with bare hands as cuts poisoning or skin irritation may occur Also do not glass fragments or leaked crystalline liquid get into your eyes or mouth Should ei...

Страница 7: ...r to exceed these refresh rates doing so may result in permanent damage to the LCD TV 2 2 Front View Item Description 1 Remote Control Receiver Receives IR signals from the remote control 2 Power LED...

Страница 8: ...1 2 Connect this port to the HDMI HDMI DVI jack of the compatible equipment If you use HDMI DVI connections please use PC Audio In for audio input 4 PC Audio In Connect the PC Audio Out on your comput...

Страница 9: ...tion 1 POWER Press this button to turn the power on from standby mode Press it again to return to the standby mode 2 FAV 1 3 Press to select favorite channels 3 TV Press to direct to TV source when in...

Страница 10: ...s these buttons to navigate the OSD menus is for function select and is for function adjustment 18 ENTER Press to confirm the selection in the OSD menu or to enter the OSD menu you select Pressing ENT...

Страница 11: ...highlight an individual OSD option then use to change the setting 3 1 5 Press ENTER to enter next OSD layer use to change the setting then press ENTER to confirm 3 1 6 Press MENU to exit the menu 3 2...

Страница 12: ...e Mode Custom Color Controls the overall color of the picture Tint Controls the difference between the green and red regions of the picture Dark Room Medium Room Backlight Bright Room Warm Cool Color...

Страница 13: ...ched sounds Balance Adjusts the relative volume of the speakers in a multiple speaker system OFF TV Speaker ON Rock POP Classical Audio mode Flat Audio Only Turns off video and gives out audio only Pr...

Страница 14: ...View Mode Overscan Enlarges the original picture horizontally and vertically to an equal aspect ratio that fills the screen The redundant part of the upper bottom left and right of the image will be r...

Страница 15: ...ght Saving Time Date and Time Auto Calibration Closed Captions Analog Type Digital Type Font Size Font Color Closed Captions Background Color Enter Password Rating Select ON OFF to activate deactivate...

Страница 16: ...t All Press ENTER to reset all settings and restore defaults Version Press ENTER to view the current TV version Factory model Enter OSD Setting Version press arrow UP ENTER ENTER ViewSonic Corporation...

Страница 17: ...4 Block Diagram ViewSonic Corporation Confidential Do Not Copy VT2645 M 16...

Страница 18: ...5 Exploded Diagram and Exploded Parts List ViewSonic Corporation Confidential Do Not Copy VT2645 M 17...

Страница 19: ...131C 006B000 SCREW M3 8L 9D X W NI 2 6 11 HW 00008944 131C 0040000 SCREW M3 8L B B NI 15 12 HW 00008946 131A 006C000 SCREW M4 6 K W NI 2 9 13 HW 00008947 131A 007C000 SCREW M3 6L WS W ZN 14 14 HW 0000...

Страница 20: ...09734 1505 00YB000 EPS CUSHION VT3745 M TR 1 9 P 00009735 1505 00YC000 EPS CUSHION VT3745 M TL 1 10 P 00009736 1505 00YD000 EPS CUSHION VT3745 M BR 1 11 P 00009737 1505 00YE000 EPS CUSHION VT3745 M BL...

Страница 21: ...e procedures for the complete parts disassembly In addition in between procedures the detailed disassembly procedure of individual parts will be provided for your service needs The disassembly procedu...

Страница 22: ...crew M4 10L S to take the base module apart BASE SUPPORT BASE Rear Cover 1 Remove 2 screws M3 10L B and 5 screws M3 8L X that fixing on the rear cover ViewSonic Corporation Confidential Do Not Copy VT...

Страница 23: ...2 Remove 4 screws M3 10L B that fixing on the rear cover 3 Remove 4 screws M3 14L B that fixing on the rear cover ViewSonic Corporation Confidential Do Not Copy VT2645 M 22...

Страница 24: ...4 Remove the rear cover Bracket 1 Remove 2 screws M3 10L B 2 screws M3 8L X and 4 screws M3 8L B that fixing on the I O bracket ViewSonic Corporation Confidential Do Not Copy VT2645 M 23...

Страница 25: ...xing the I O bracket with the panel 3 Remove 4 screws M3 6L WS that fixing the left and right bracket cable clamps 4 Remove 7 screws M4 6 K that fixing the bracket and chassis ViewSonic Corporation Co...

Страница 26: ...e chassis 6 Remove 2 screws M4 8LX that fixing the chassis with the panel 7 Remove the chassis Keypad 1 Remove 2 screws M3 8L B that fixing the keypad module with front cover module ViewSonic Corporat...

Страница 27: ...2 Disconnect IR Keypad wire from keypad 3 Remove 3 screws M3 8L B to take the keypad module apart ViewSonic Corporation Confidential Do Not Copy VT2645 M 26...

Страница 28: ...4 Disconnect Keypad MB wire from Keypad Cable 1 Disconnect Keypad MB wire from mainboard 2 Disconnect the PSU MB cable ViewSonic Corporation Confidential Do Not Copy VT2645 M 27...

Страница 29: ...Disconnect speaker cable 4 Disconnect the LVDS cable from panel 5 Open the cover of the LVDS connector on the Mainboard 6 Insert the LVDS cable ViewSonic Corporation Confidential Do Not Copy VT2645 M...

Страница 30: ...r of the LVDS connector Mainboard Remove 4 screws M3 6L WS that fixing on the Mainboard PSU 1 Remove screw M4 6L W that fixing the grounding wire with panel ViewSonic Corporation Confidential Do Not C...

Страница 31: ...2 Disconnect cables from PSU 3 Remove 4 screws M3 6L WS that fixing the PSU ViewSonic Corporation Confidential Do Not Copy VT2645 M 30...

Страница 32: ...onnect the IR wire from IR board 2 Remove 2 screws M3 8L B that fixing the IR board Speaker Remove 4 screws M3 8L 9D that fixing the speakers on front cover ViewSonic Corporation Confidential Do Not C...

Страница 33: ...Panel 1 Remove 2screws M3 8L 9D X that fixing the panel 2 Remove the panel from front cover ViewSonic Corporation Confidential Do Not Copy VT2645 M 32...

Страница 34: ...131C 0040000 M 38 Screw SCREW M4 8L X B NI HW 00008945 131A 0088000 M 39 Screw SCREW M4 6 K W NI 2 HW 00008946 131A 006C000 M 40 Screw SCREW M3 6L WS W ZN HW 00008947 131A 007C000 M 41 Screw SCREW M4...

Страница 35: ...a PC and the target HDTV Step2 Use PC to obtain FIRMWARE PKG from WebService Put FIRMWARE PKG file onto C Temp Step3 Plug USB flash disk to PC Select USB disk in My Computer Select Properties item bel...

Страница 36: ...Make sure FAT32 format in USB Copy C Temp FIRMWARE PKG to the ROOT directory of USB disk ViewSonic Corporation Confidential Do Not Copy VT2645 M 35...

Страница 37: ...the USB disk to the HDTV power off Step5 Power on HDTV Power on HDTV It will show upgrading progresses automatically within 3 seconds The HDTV screen will show red and blue progress bar several times...

Страница 38: ...Remove the USB flash disk from HDTV 8 2 How to format to FAT32 Plug USB flash disk to PC In My Computer folder Select Format function in the pop up menu Select FAT32 then press Start ViewSonic Corpor...

Страница 39: ...SanDisk Kingston KingMax 8 4 RMA test procedure Install factory tool 8 4 1 Install visa450runtime 8 4 2 Finish Install 8 4 3 Connect the USB cable between PC and PWR meter ViewSonic Corporation Confid...

Страница 40: ...8 4 4 Restart the PC the device can be found on the control panel 8 4 5 Install the factory tool for repair ViewSonic Corporation Confidential Do Not Copy VT2645 M 39...

Страница 41: ...tallation guide 8 4 6 Run the factory tool 8 4 7 When Login every initial screen it should key in the user name and ISN number Key in the job number password and log in ViewSonic Corporation Confident...

Страница 42: ...Input serial number of TV 8 4 8 Test1 station Initialize ViewSonic Corporation Confidential Do Not Copy VT2645 M 41...

Страница 43: ...connect the USB to RS232 cable RS232 cable on TV Connect the other end of the RS232 cable with PC ViewSonic Corporation Confidential Do Not Copy VT2645 M 42...

Страница 44: ...Choose T1 Press auto run Press No to go the Test 2 station ViewSonic Corporation Confidential Do Not Copy VT2645 M 43...

Страница 45: ...8 4 9 Test 2 Station Backlight and Gamma alignment Rear view of Color analyzer ViewSonic Corporation Confidential Do Not Copy VT2645 M 44...

Страница 46: ...Choose T2 Choose the type of color analyzer then press AUTO RUN If you do not need to test next one press No to go to T3 station ViewSonic Corporation Confidential Do Not Copy VT2645 M 45...

Страница 47: ...8 4 10 T3 station Color temperature check ViewSonic Corporation Confidential Do Not Copy VT2645 M 46...

Страница 48: ...Choose type of Color analyzer Patterngenerator Press AUTO RUN ViewSonic Corporation Confidential Do Not Copy VT2645 M 47...

Страница 49: ...Check Gamma_6500 Check Gamma_9300 ViewSonic Corporation Confidential Do Not Copy VT2645 M 48...

Страница 50: ...Check Gamma_11000 Turn off the power Check the power consumption should 1w ViewSonic Corporation Confidential Do Not Copy VT2645 M 49...

Страница 51: ...If not test the next one press No to go to T4 station 8 4 11 T4 Station EDID writing ViewSonic Corporation Confidential Do Not Copy VT2645 M 50...

Страница 52: ...Go to the T4 station press Start ViewSonic Corporation Confidential Do Not Copy VT2645 M 51...

Страница 53: ...It will show All pass when the work finished 8 4 12 T5 SN writing ViewSonic Corporation Confidential Do Not Copy VT2645 M 52...

Страница 54: ...ViewSonic Corporation Confidential Do Not Copy VT2645 M 53...

Страница 55: ...Go to the T4 station press Start If the connection is all right it will show green check mark Input the SN number of TV ViewSonic Corporation Confidential Do Not Copy VT2645 M 54...

Страница 56: ...Press Enter if it works normally will show All Pass 8 4 13 Check SN number ViewSonic Corporation Confidential Do Not Copy VT2645 M 55...

Страница 57: ...ten generator Make sure to follow below process Turn on the TV Connect TV with Chromma22293 VGA and HDMI Switch TV source to VGA or HDMI Set Chroma 22293 Timing 14 Pattern 701 VGA Timing 70 Pattern 70...

Страница 58: ...9 Trouble Shooting Flow Chart 9 1 No Power 9 2 Can not start ViewSonic Corporation Confidential Do Not Copy VT2645 M 57...

Страница 59: ...9 4 Abnormal display 9 3 No display ViewSonic Corporation Confidential Do Not Copy VT2645 M 58...

Страница 60: ...9 5 No sound ViewSonic Corporation Confidential Do Not Copy VT2645 M 59...

Страница 61: ...9 6 Key Board ViewSonic Corporation Confidential Do Not Copy VT2645 M 60...

Страница 62: ...ge color light color or color misalignment Ensure that the video cable is securely connected The picture may appear dim in a brightly lit room Adjust brightness contrast saturation color and tint refe...

Страница 63: ...ff with sidebar screen Is the image positioned correctly Are screen mode adjustments such as picture size set correctly Press WIDE button repeatedly on the remote control to see if you can get the pic...

Страница 64: ...Block Diagram 5 Exploded Diagram and Exploded Parts List 6 Disassembly Procedure 7 Recommended Spare Parts List 8 BIOS Firmware Update SOP 9 Trouble Shooting Flow Chart 10 FAQ B Are you satisfied with...

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