Toshiba e-Studio 270P
Service checks 04
Operator panel service check
Inspect the operator panel cable for damage. Make sure the cable is plugged in securely.
Run POST and check each light for proper operation.
Operator panel service check
| FRU | Action |
|---|---|
| Operator panel | Buttons Open controller card cage and locate the operator panel connector at J16. Check for continuity between pins 1 and 2 of the cable as you press the Continue button. Similarly, check the continuity between pins 1 and 6 of the cable while pressing Cancel . • If continuity is not present, replace the operator panel. Note: Check margin alignments after replacing the operator panel assembly. If margin errors are unacceptable, corrections can only be made through software. |
| Operator panel Controller card Warning: Do not replace the operator panel and controller card at the same time. Each card contains the printer settings. When either of these cards is new, it obtains the settings from the other card. Settings are lost when both are new and replaced at the same time. |
Lights If none of the lights come on, make sure the cable is properly connected to the controller card and the controller card has input voltage to it. Verify +24 V dc on cable pin 8 at J7. • Check for +5 V dc at J16, pin 5 See “Controller card service check” for more information. • If these voltages are not correct, replace the controller card. • If these voltages are correct, replace the operator panel. If more than one light does not turn on or an individual light stays on solid during POST, replace the operator panel. If all lights are dim and operate erratically during POST or all lights come on and stay on solid during POST, replace the FRUs in the following order one at a time: • Controller card • Operator panel |