Geo Knight Digital Knight K20S Manual
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Contents
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15Troubleshooting (cont.)Q. I press the keys on the keypad, and there is no sound or response fromthe controller.A. Check the connection of the keypad to the controller. This is insidethe top panel. Unplug the power cord. Remove the two screws inbetween the clamp/linkage that hold down the top panel, and carefullylift the panel up and look inside at the digital controller. The keypadconnector passes in through the top panel. It should wind around thefirst circuit board and be seated fully into the connector. Check theblack keypad connector that plugs into the circuit board to see if it haspulled apart. Also check the area where the keypad connects to thefront membrane to see if the leads have been damaged. The membranekeypad may need to be replaced.Q. The clamp becomes extremely difficult to open and close, andsometimes binds up.A. The linkage pins and the posts that connect to the heat platen must belubricated with SuperLube or Permatex Anti-Seize - a clear, hightemperature lubricant. This type of lubricant can be obtained in anyauto parts or hardware store. Lower the heater but do not clamp thepress. Thoroughly clean the posts that come out of the heat platen, aswell as the pins, the holes the pins pass through, and the holes the heatplaten posts pass through. Relubricate the posts, pins, and all holes &areas in the clamp assembly that receive motion, and reconnect theassembly.Q. The press has shut off, and will not come back on after checking thepower cord.A. Test for power coming from the back side of the power cord inletsocket. Test for power coming from the back side of the on/off switch.Test for power coming to the end of the black & white wires thatcome from the on/off switch into the control board. This will narrowdown which power handling component needs replacement.Q. I pressed a transfer upside down. The inks and transfer material haveburned onto the heat platen.A. Cool the press down. Using a nonabrasive detergent or cleaner, thoroughlyscrub the heat platen surface. Do not use an abrasive scrubber, or a padthat will scratch the Teflon coating of the platen. If you are still unable toremove the transfer material, obtain teflon heater block cleaner from thecontact information located at the end of this manual. |
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