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9. Remove the four screws holding the motherboard to the standoffs. See Figure 5.

10. Remove the motherboard. While you can leave the power wires attached, you may find it more

convenient to remove the wires and set the motherboard aside. Take care not to damage the
motherboard during the rest of this procedure.

Power

Wires

Motherboard

Figure 5

11. Unscrew the 5 screws and remove the CPU bracket/plate. Set it aside. See Figure 6.

CPU

Bracket/plate

Remove

Screws

Figure 6

January 2006

Page 5 of 14

01-50604-01

Содержание Cutler-Hammer PanelMate Power Pro 1785...

Страница 1: ...technicians Required Tools Phillips screwdriver size P0 and P1 Magnetic would be helpful Nut Driver or socket size Instructions for Replacing the Backlight in a 1785 Series unit 1 Disconnect the powe...

Страница 2: ...by keeping the light perfectly straight Cleaning Clean off any fingerprints or dirt that may have gotten on the inner display surface or the backside of the front panel 10 Reattach the video cable to...

Страница 3: ...lding the CPU circuit board the connector plate with USB and serial expansion connectors and the blank slot protector See Figure 3 Figure 3 Memory Board CPU Circuit Board Touchscreen Controller Card R...

Страница 4: ...n cable from the connector See Figure 4 Fan Connector Display Cable Most Wires Away From Fan Touchscreen Wire Bundle Red Wire Towards Fan Figure 4 8 Remove the CPU circuit board by grasping it and pul...

Страница 5: ...you may find it more convenient to remove the wires and set the motherboard aside Take care not to damage the motherboard during the rest of this procedure Power Wires Motherboard Figure 5 11 Unscrew...

Страница 6: ...klight cable from the connector on the left side of the inverter board See Figure 7 The inverter power cable can be removed if desired but this is not required Note In newer models a standoff had been...

Страница 7: ...y it aside Front Panel Display Display Plate Figure 8 18 Remove the four corner screws of the display See Figure 9 As you remove the display from the display plate be careful to disconnect the video c...

Страница 8: ...fragile Do not bend the backlight but replace it by keeping the light perfectly straight Cleaning Clean off any fingerprints or dirt that may have gotten on the inner display surface or the backside o...

Страница 9: ...n the extreme right See Figure 5 34 Reinstall the CPU circuit board into the slot closest to the display panel making sure that it is fully seated 35 Reattach the black display cable to the CPU circui...

Страница 10: ...ate unit 2 Remove the chassis cover from the electronics module by unscrewing the five screws at the back of the unit and the single screw on the connector side of the unit See Figure 13 Screws Figure...

Страница 11: ...racket will need to be unscrewed before the power supply can be removed from the CPU circuit board 5 Rotate the unit back 90 Remove the power supply from the board and remove the screws from the CPU c...

Страница 12: ...verter board require a small Phillips head screwdriver See Figure 18 Standoffs Backlight Cable Screws Front panel Touchscreen cable Figure 18 8 Gently pull the touchscreen cable through the opening in...

Страница 13: ...gure 20 shows the backlight removed Backlight Cartridge Screw Screw Video Connector Display Module Backlight Cable Figure 20 12 Gently and carefully place the new backlight cartridge into the display...

Страница 14: ...er cable and the touchscreen cable to the CPU circuit board See Figure 17 Caution If the display cable is not aligned correctly on the pins the display and CPU can be damaged beyond repair during powe...