Eaton Cutler-Hammer PanelMate Power Pro 1785... Guide

January 2006 Page 1 of 14 01-50604-01
Replacing the PanelMate Power Pro 1785 Series, PanelMate ePro
7585x-8 and 7685x-8 Series Backlight Assembly
Introduction
The Backlight Replacement Kit provides a replacement backlight for the PanelMate Power Pro 1785
Series, the PanelMate ePro 7585x-8 Series, and the PanelMate ePro 7685x-8 PS Series (all models)
units. Although the figures provided are for touchscreen models, disassembly for keypad models is
similar. For bulb replacement in keypad units, follow the same procedures as for touchscreen units.
Contents
• Backlight
• Disposable Grounding Wrist Strap
Caution: Electrostatic Discharge (ESD) can damage static-sensitive electronic components. You
should perform these procedures only at an ESD workstation. If an ESD workstation is not
available, you can provide some protection by wearing an anti-static wrist strap and
attaching it to a metal part of the system chassis.
Warning: This procedure requires electrical and mechanical skill and should be attempted
only by qualified technicians.
Required Tools
• Phillips screwdriver—size P0 and P1. Magnetic would be helpful.
• Nut Driver or socket size ¼”
Instructions for Replacing the Backlight in a 1785 Series unit
1. Disconnect the power source cable and any other cables from the PanelMate unit. If a high speed
interface module is attached, remove the module.
2. Remove the cover from the electronics module by unscrewing the screws holding the cover on.
3. Remove the circuit board by removing the standoffs, and the screws holding the circuit board to the
display plate assembly.
4. Disconnect the backlight cable from the inverter. If necessary, you may have to remove the inverter
by removing the screws connecting the inverter to the display plate.
Note: In newer models, a standoff had been placed next to the backlight cable connector to prevent
it from disconnecting from the inverter. The inverter has to be removed in order to disconnect
the backlight cable.
5. Remove the standoffs on the display plate to release it from the front panel.
6. Remove the display module from the display plate by unscrewing the screws at the corners, and
pulling the backlight cable through the cutout in the display plate.
7. Remove the video cable from the display module.

8. With the display module facing down, remove the backlight cartridge by unscrewing the two screws
holding the backlight cartridge to the display module and sliding gently apart about 1/8 inch and then
lifting up. Figure 1 shows the backlight removed.
Screw Screw
Backlight
Cable
Video
Connecto
r
Display
Module Backlight
Cartridge
Figure 1
9. Gently and carefully place the new backlight cartridge into the display module, slide into position, and
reattach the screws. Make sure the backlight cable is not crimped when you reattach the screws.
Caution: The backlight cartridge is very 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 of the front panel.
10. Reattach the video cable to the display module.
11. Reattach the display module to the display plate, replacing the screws, and making sure that you
push the backlight cable through the cutout in the display plate.
12. Reattach the display assembly to the front panel, replacing the standoffs.
13. Reconnect the backlight cable to the inverter, and if necessary, reattach the inverter to the display
plate.
14. Reattach the circuit board, screwing on the screws and the standoffs.
15. Reinstall the electronics module cover.
16. If used, reattach the high-speed interface module.
17. Connect the power source cable and any other cables.
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Instructions for Replacing the Backlight in a 7585x-8 Series unit
1. Disconnect the power source cable and any other cables from the PanelMate unit.
2. Remove the chassis cover from the electronics module by unscrewing the six screws at the back of
the unit. See Figure 2.
Figure 2
3. Remove the screws holding 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
Remove
Screws
Connector Plate with
USB and Serial
Expansion
Connectors
4. Remove the blank slot protector and set it aside.
5. Remove the connector plate with USB and serial expansion connectors from its slot; however, it may
remain connected to the CPU circuit board.
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6. Unplug the black display cable and the red and white touchscreen wire bundle from the CPU circuit
board. See Figure 4.
7. Unplug the fan 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 pulling up with a slight rocking motion being careful
not to pull on the memory board. See Figure 3.
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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
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12. Remove the two screws holding the inverter board and remove the inverter board. This requires a
small Phillips-head screwdriver. See Figure 7.
Inverter
Board
Touchscreen
Power Connector
Touchscreen
Connector
Remove
Screws
Touchscreen
Jumper Cable
Loosen
Screws
Backlight
Connector
Touchscreen
Controller Card
Inverter Power
Connector
Figure 7
13. Unplug the backlight 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 placed next to the backlight connector to prevent the
cable from disconnecting from the inverter. The inverter has to be removed in order to
disconnect the backlight cable.
14. Unplug the touchscreen jumper cable from the touchscreen connector.
15. Remove the four screws in the corners that hold the front panel. See Figure 7.
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16. Loosen or remove the center right and center bottom screws. This loosens the display plate so you
can get the touchscreen ribbon cable connector out. See Figure 8.
17. Remove front panel and lay 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 cable by pulling straight back and gently guide the
backlight cable through the opening. It may be retained by the standoff.
Backlight
Cable
Screws
Figure 9
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19. With the display module facing down, remove the backlight cartridge by unscrewing the two screws
holding the backlight cartridge to the display module and sliding gently apart about 1/8 inch and then
lifting up. Figure 10 shows the backlight removed.
Backlight
Cable
Video
Connector
Screw Screw
Backlight
Cartridge
Display
Module
Figure 10
20. Gently and carefully, place the new backlight cartridge into the display module, slide into position,
and reattach the screws. Make sure the backlight cable is not crimped when you reattach the screws.
Caution: The backlight cartridge is very 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 of the front panel.
21. Reattach the video cable to the video connector on the display module. See Figure 10.
22. Insert the backlight cable through opening.
23. Reattach the display to the display plate.
24. Reattach the front panel to the display plate making sure that you push the touchscreen ribbon cable
connector through the cutout in the display plate. Make sure all assembly screws have been
retightened.
25. Reattach the touchscreen jumper cable to the touchscreen connector. (See Figure 11.)
Touchscreen
Connector
Touchscreen
Jumper Cable
Figure 11
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26. Reattach the backlight cable to the inverter board. Ensure that the two wires are on either side of the
small white standoff. See Figure 12.
27. Reattach the inverter board. Make sure the wires are routed through the cable clip.
Standoff Inverter
Board
Inverter
Power Cable
Backlight
Cable
Cable Clip
Figure 12
28. Reconnect the inverter power cable to the inverter if it was removed.
29. Should the touchscreen wire bundle need to be reconnected to the touchscreen controller card, make
sure the connector labeled “TS” is connected to the touchscreen board and is facing out.
30. Verify that all previous connections are in place. See Figure 5.
31. Reattach the slot bracket using the five flat-head screws.
32. Reinstall the motherboard, screwing the four screws into the standoffs. If the screw holes on the right
are slotted, then the screws with flat washers should be used.
33. Reattach the power wires if they were removed. The black wire is on the extreme left and the red
wire is on 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 circuit board making sure most of the wires are to the
right (away from the fan) and taking care to center it on the pins without bending any. See Figure 4.
Caution: If the display cable is not aligned correctly on the pins, the display and CPU can be
damaged beyond repair during power-up.
36. Reattach the red and white touchscreen wire bundle to the CPU circuit board making sure the red
wire is to the left (toward the fan) and taking care to center it on the pins without bending any. See
Figure 4.
37. Reinstall the connector plate with USB and serial expansion connectors next to the CPU board. Be
careful to avoid the protruding screw. Reinstall the remaining slot protector.
38. Reconnect the fan cable to the connector and tuck the cables and connectors back in making sure
the wires remain clear of the fan.
39. Verify that all previous connections are in place. Reinstall the chassis cover.
40. Connect the power source cable and any other cables.
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Instructions for Replacing the Backlight in a 7685x-8 ePro PS Series unit
1. Disconnect the power source cable and any other cables from the PanelMate 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 13
3. Remove the standoffs from the four corners of the CPU circuit board. See Figure 14.
Standoffs
Figure 14
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4. Rotate the unit 90°. Remove the screws from the power supply and disconnect the two power
connectors. See Figure 15.
PCI
connector
Power
connectors
Power
supply
screws
Figure 15
Note: If the unit is an Outdoor Series model, a fan bracket will be mounted above the PCI connector
and wired into the power supply. The fan bracket 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 circuit board. See Figure 16.
PCI
connector
Screws
Figure 16
Note: If the unit is an Outdoor Series model, the screws on either side of the PCI connector will be
replaced with standoffs for a fan bracket which was removed in Step 4. Remove the standoffs
from the CPU cirtcuit board.
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6. Gently tilt the circuit board up along the fan edge of the board and remove the video cable, inverter
cable and touchscreen cable. See Figure 17. The CPU circuit board is now free from the unit.
Video cable
Inverter cable
Touchscreen
cable
Figure 17
7. Remove the standoffs from the four corners of the display plate along with the screws from the
inverter board. The screws for the inverter 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 the display plate and remove the front
panel. Lay it aside.
9. Unplug the backlight cable from the connector on the left side of the inverter board.
Note: A standoff had been placed next to the backlight connector to prevent the cable from
disconnecting from the inverter. The inverter has to be removed in order to disconnect the
backlight cable.
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10. Remove the four corner screws of the display. See Figure 19. As you remove the display from the
display plate, be careful to disconnect the video cable by pulling straight back on the display. Also be
careful to gently pull the backlight cable through the opening in the plate.
Screws
Figure 19
11. With the display module facing down, remove the backlight cartridge by unscrewing the two screws
holding the backlight cartridge to the display module and sliding gently apart about 1/8 inch and then
lifting up. Figure 20 shows the backlight removed.
Backlight
Cartridge
ScrewScrew
Video
Connector
Display
Module
Backlight
Cable
Figure 20
12. Gently and carefully, place the new backlight cartridge into the display module, slide into position,
and reattach the screws. Make sure the backlight cable is not crimped when you reattach the screws.
Caution: The backlight cartridge is very 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 of the front panel.
13. Reattach the video cable to the video connector on the display module. See Figure 20.
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January 2006 Page 14 of 14 01-50604-01
14. Insert the backlight cable through opening.
15. Reattach the display to the display plate. See Figure 19.
16. Reattach the display plate to the front panel making sure to feed the touchscreen cable through the
opening in the plate. (See Figure 18).
17. Reattach the backlight cable to the inverter board. Ensure that the two wires are on either side of the
small white standoff. See Figure 18.
18. Reattach the inverter board. See Figure 18.
19. Reconnect the inverter power cable to the inverter if it was removed. Make sure the cable is routed
through the cable clip. See Figure 18.
20. Reconnect the video cable, the inverter 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 power-up.
21. Reinstall the CPU circuit board. See Figure 16.
22. Reattach the power supply and reconnect the power connectors. Also reattach the fan bracket if the
unit is an Outdoor Series model. See Figure 15.
23. Reattach the standoffs in the four corners of the CPU circuit board. See Figure 14.
24. Verify that all previous connections are in place and that all wires are inside the edges of the display
plate. Reinstall the chassis cover. See Figure 13.
25. Connect the power source cable and any other cables.
Eaton Corporation
Operator Interface Business
811 Green Crest Drive
Westerville, Ohio 43081
tel: [phone]
fax: [phone]
www.EatonElectrical.comT