Installation Instructions Replacement Keyswitch Assembly (Catalog No. 2711E-NKSW1) Applicable Terminals Use this replacement keyswitch with PanelView Terminals 2711-KA1, -KC1, -TA1, -TC1, -TA4, -TC4 and PanelView 1400e Terminals Series E and earlier) Contents This document contains instructions for multiple terminals. Refer to the section that applies to your terminal. Section Page Tools Required 1 Important 2 PanelView 1200 Terminals Series A through Series C 3 PanelView 1200 Terminals Series D and Series E 9 PanelView 1200 Series F through Series G, all PanelView 1200e 14 PanelView 1400e Series A through Series E 18 Troubleshooting- All Terminals 21 Tools Required Tools Required: flat-blade screwdriver phillips screwdriver 7/8 inch. open-ended wrench needle nose pliers 1
2 Replacement Keyswitch Assembly Important Replacement of the Keyswitch Assembly should be performed by a qualified technician who has experience in the service and repair of electronic equipment. In no event will Allen-Bradley LLC be responsible for indirect or consequential damages resulting from the replacement of this part. Use an anti-static mat or wear a grounding wrist strap whenever you work with any electronic components. ATTENTION! Make sure that the PanelView terminal s power cord is disconnected, and that all cables have been disconnected from the rear of the terminal. ATTENTION! The electronic components in PanelView terminals are extremely sensitive to static electricity and may be permanently damaged by electrostatic discharges. Follow proper handling procedures for electrostatic devices. Back Up Your Application File If you have no disk copy of the application file (as it was created in PanelBuilder) make one before opening the terminal. Upload the application file to a computer running PanelBuilder 1400e and save the file on disk.
Replacement Keyswitch Assembly 3 PV1200 Series A through Series C Open the Logic Board Drawer 1. Place the terminal on its side on top of a protective surface. 2. Remove the three screws which hold the logic board drawer closed. 3. Swing the drawer open.
4 Replacement Keyswitch Assembly PV 1200 Series A through Series C (Continued) Disconnect the Logic Board Remove the connections from points J1, J2, J3, J4, J6, J7 and J8 on the logic board. Note: Cables J2 and J4 are only present on color terminals; J3 is only present on monochrome terminals. J1 J8 J7 J3 J4 J6 J2
Replacement Keyswitch Assembly 5 Remove the Logic Board Drawer The drawer hinges are white nylon bushings held in place by a phillips screw. 1. Remove the screw from the top hinge (the one opposite the side with the ground wire). Using needle nose pliers, pinch the prongs on the bushing and push the bushing upwards, out of the metal tab. 2. Swing the drawer outwards, and the other bushing will detach, allowing the drawer to be removed. The ground wire can remain attached.
6 Replacement Keyswitch Assembly PV 1200 Series A through Series C (Continued) Remove the Node Adapter and the Logic Board The node adapter board assembly is attached to the logic board by two screws and an edge-connector plug. 1. Remove the screws and slide the assembly straight up to unplug. 2. Remove the eight phillips screws holding the logic board to the drawer and slide out the logic board. IMPORTANT When removing the logic board mounting screws, note that the screw located below U7 has a plastic washer. This washer must be installed in the same position during reassembly.
Replacement Keyswitch Assembly 7 Remove the Keyswitch Using a 7/8 inch wrench, remove the nut securing the keyswitch. Remove the keyswitch. ATTENTION! Do not hold the keyswitch by the plastic section of the body. Twisting the plastic section can damage the keyswitch. Insert the New Keyswitch 1. Slide in the replacement keyswitch and secure it to the drawer with the nut. 2. Orient the keyswitch so that the key s teeth face upwards. Align the two flat surfaces of the switch with the two flat edges of the opening in the drawer.
8 Replacement Keyswitch Assembly PV 1200 Series A through Series C (Continued) Reassemble the Terminal 1. Slide in the logic board. Attach the eight mounting screws (remember to replace the plastic washer removed earlier). 2. Plug in the Node Adapter assembly, being careful to align the pins in the edge connector, and then secure with two screws. 3. Reattach the bushing and put the drawer back into the terminal. 4. Reconnect the logic board: 5. Reattach the ribbon cables to the logic board. With the locking bars up, hook each cable onto the tabs in the connector as shown below. Push the connector and locking bar in to latch it closed. Close the Terminal Test the Terminal Make sure that there are no washers, screws, or other metal objects left on or under the logic board. Close the logic board drawer and secure with three screws. 1. Apply power to the terminal. On color terminals, listen to make sure the fan is operating. 2. Set the mode-select keyswitch on the rear of the terminal to CONFIGURE. The Configuration Mode menu should appear. Switch to RUN; the terminal should enter Run Mode. 3. Switch to Configuration Mode and verify that all Unit Tests in the Configuration Mode Menu are run successfully (refer to terminal user manual). Note: If the optional user PROMs are not installed, the Memory Checksum test will indicate a failure at memory location 5000:0000. this is normal.
Replacement Keyswitch Assembly 9 PV1200 Series D and Series E Open the Logic Board Drawer 1. Place the terminal on its side on top of a protective surface. 2. Remove the screws which hold the logic board drawer closed. 3. Swing the drawer open. Color Back Panel Remove these screws to access the logic board. Monochrome Back Panel
10 Replacement Keyswitch Assembly PV 1200 Series D and Series E (Continued) Disconnect the Logic Board Remove the connections from points J3, J4, J5, J6, J7, J8 and J9 on the logic board. J9 J7 J5 J8 J3 J4 J6 Squeeze the clips and slide them out to loosen the connector, then pull out the ribbon cable.
Replacement Keyswitch Assembly 11 Remove the Logic Board Drawer The drawer hinges are white nylon bushings held in place by a phillips screw. 1. Remove the screw from the top hinge (the one opposite the side with the ground wire). Using needle nose pliers, pinch the prongs on the bushing and push the bushing upwards, out of the metal tab. 2. Swing the drawer outwards, and the other bushing will detach, allowing the drawer to be removed. The ground wire can remain attached.
12 Replacement Keyswitch Assembly PV 1200 Series D and Series E (Continued) Remove the Logic Board 1. Remove the ten phillips screws holding the logic board to the drawer and slide out the logic board. IMPORTANT When removing the logic board mounting screws, note that the screw located below U7 has a plastic washer. This washer must be installed in the same position during reassembly. Remove the Keyswitch Using a 7/8 inch wrench, remove the nut securing the keyswitch. Remove the keyswitch. ATTENTION! Do not hold the keyswitch by the plastic section of the body. Twisting the plastic section can damage the keyswitch. Insert the New Keyswitch 1. Slide in the replacement keyswitch and secure it to the drawer with the nut. 2. Orient the keyswitch so that the key s teeth face upwards. Align the two flat surfaces of the switch with the two flat edges of the opening in the drawer.
Replacement Keyswitch Assembly 13 Reassemble the Terminal 1. Position the logic board in the logic board drawer and secure with ten screws. 2. Reattach the bushing and put the drawer back into the terminal. 3. Reconnect the logic board ribbon cables and wire connectors: Reattach the ribbon cables (J6 and J4) to the logic board. With the locking bars up, hook each cable onto the tabs in the connector as shown below. Push the connector and locking bar in to latch it closed. Close the Terminal Test the Terminal Make sure that there are no washers, screws, or other metal objects left on or under the logic board. Close the logic board drawer and secure with two screws. 1. Apply power to the terminal. On color terminals, listen to make sure the fan is operating. 2. Set the mode-select keyswitch on the rear of the terminal to CONFIGURE. The Configuration Mode menu should appear. Switch to RUN; the terminal should enter Run Mode. 3. Switch to Configuration Mode and verify that all Unit Tests in the Configuration Mode Menu are run successfully (refer to terminal user manual). Note: If the optional user PROMs are not installed, the Memory Checksum test will indicate a failure at memory location 5000:0000. This is normal.
14 Replacement Keyswitch Assembly PV1200 Terminals Series F through Series G, All PanelView 1200e Open the Logic Board Drawer 1. Place the terminal on its side on top of a protective surface. 2. Remove the two screws which hold the logic board drawer closed. 3. Swing the drawer open. PanelView 1200 Terminals Keyswitch Remove these screws to access the logic board. Disconnect the Logic Board Remove the connections from points J1, P1, P2, P3 and J6 on the logic board. J1 J6 P2 P1 P3 Squeeze the clips and slide them out to loosen the connector, then pull out the ribbon cable.
Replacement Keyswitch Assembly 15 Remove the Logic Board Drawer The drawer hinges are white nylon bushings held in place by a phillips screw. 1. Remove the screw from the top hinge (the one opposite the side with the ground wire). Using needle nose pliers, pinch the prongs on the bushing and push the bushing upwards, out of the metal tab. 2. Swing the drawer outwards, and the other bushing will detach, allowing the drawer to be removed. The ground wire can remain attached. Remove the Logic Board 1. Remove the ten phillips screws holding the logic board to the drawer and slide out the logic board. IMPORTANT PanelView 1200 - When removing the logic board mounting screws, note that the screw located below U7 has a plastic washer. This washer must be installed in the same position during reassembly.
16 Replacement Keyswitch Assembly PV1200 Terminals Series F through Series G, All PanelView 1200e (Continued) Remove the Keyswitch Using a 7/8 inch wrench, remove the nut securing the keyswitch. Remove the keyswitch. ATTENTION! Do not hold the keyswitch by the plastic section of the body. Twisting the plastic section can damage the keyswitch. Insert the New Keyswitch 1. Slide in the replacement keyswitch and secure it to the drawer with the nut. 2. Orient the keyswitch so that the key s teeth face upwards. Align the two flat surfaces of the switch with the two flat edges of the opening in the drawer. Reassemble the Terminal 1. Position the logic board in the logic board drawer and secure with ten screws. 2. Reattach the bushing and put the drawer back into the terminal. 3. Reconnect the logic board ribbon cables and wire connectors: Reattach the ribbon cables (J6 and J4) to the logic board. With the locking bars up, hook each cable onto the tabs in the
Replacement Keyswitch Assembly 17 connector as shown below. Push the connector and locking bar in to latch it closed. Close the Terminal Test the Terminal Make sure that there are no washers, screws, or other metal objects left on or under the logic board. Close the logic board drawer and secure with two screws. 1. Apply power to the terminal. On color terminals, listen to make sure the fan is operating. 2. Set the mode-select keyswitch on the rear of the terminal to CONFIGURE. The Configuration Mode menu should appear. Switch to RUN; the terminal should enter Run Mode. 3. Switch to Configuration Mode and verify that all Unit Tests in the Configuration Mode Menu are run successfully (refer to terminal user manual). Note: If the optional user PROMs are not installed, the Memory Checksum test will indicate a failure at memory location 5000:0000. this is normal.
18 Replacement Keyswitch Assembly PanelView 1400e Series A through Series E Open the Logic Board Drawer 1. Place the terminal on its side on top of a protective surface. 2. Remove the two screws which hold the logic board drawer closed. 3. Swing the drawer open. PanelView 1400e Terminals Keyswitch Remove these screws to access the logic board. Disconnect the Logic Board Remove the connections from points J1, J5, J6 and P3 on the logic board. J1 J6 J5 P3
Replacement Keyswitch Assembly 19 Remove the Logic Board Drawer Carefully pull on one side of the drawer (side opposite green ground wire) to dislodge the hole in the drawer from the rounded protrusion on one side of the chassis. Copper Finger Strip Ground Wire Dislodge Drawer from Chassis Pull on this side Note: Be careful that you don t damage the copper finger strip or ground wire. Remove the Logic Board Remove the seven phillips screws holding the logic board to the drawer and slide out the logic board. Remove the Keyswitch Using a 7/8 inch wrench, remove the nut securing the keyswitch. Remove the keyswitch. ATTENTION! Do not hold the keyswitch by the plastic section of the body. Twisting the plastic section can damage the keyswitch.
20 Replacement Keyswitch Assembly PanelView 1400e Series A through Series E (Continued) Insert the New Keyswitch 1. Slide in the replacement keyswitch and secure it to the drawer with the nut. 2. Orient the keyswitch so that the key s teeth face upwards. Align the two flat surfaces of the switch with the two flat edges of the opening in the drawer. Reassemble the Terminal 1. Position the logic board in the logic board drawer and secure with seven screws. 2. Reattach the bushing and put the drawer back into the terminal. 3. Reconnect the logic board ribbon cables and wire connectors: Close the Terminal Make sure that there are no washers, screws, or other metal objects left on or under the logic board. Close the logic board drawer and secure with two screws. Test the Terminal 1. Apply power to the terminal. On color terminals, listen to make sure the fan is operating. 2. Set the mode-select keyswitch on the rear of the terminal to CONFIGURE. The Configuration Mode menu should appear. Switch to RUN; the terminal should enter Run Mode. 3. Switch to Configuration Mode and verify that all Unit Tests in the Configuration Mode Menu are run successfully (refer to terminal user manual).
Replacement Keyswitch Assembly 21 Troubleshooting (All Terminals) Problem Probable Cause(s) Corrective Action Blank screen on power-up. Logic board is improperly Check that all connectors are properly connected installed. and oriented. Touch cells or Function buttons don t work. Can t establish PLC communication. Can t switch from run to Configure mode. Fan nor running at powerup (color terminals). Ribbon cables installed improperly. Node adapter board improperly installed (PV1200 Series A - C). Mode-select switch is improperly installed. Fan connector on logic board is not connected. Check that cables are properly attached. Verify that the node adapter is securely plugged in. Make sure that the pins in the edge connector are properly aligned. Verify that the new keyswitch is properly attached. Check that connector is connected to the logic board.
22 PN 2000 Rockwell International Corporation. Printed in the U.S.A.