HP LaserJet Pro CP1525 Service Manual - Page 82
Power-on checks, Make sure that the control-panel display is connected.
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Power-on checks When you turn on the product, if it does not make any sound or if the control-panel display is blank, check the following items: ● Verify that the product is plugged directly into an active electrical outlet that has the correct voltage. Do not plug the product into a surge protector or power strip. ● Verify that the on/off switch is in the on position. ● Verify that the formatter is seated and operating correctly. ● Remove any HP Jetdirect accessories or other devices, and then try to turn the product on again. ● Make sure that the control-panel display is connected. ● Check the two fuses on the power supply. ● If necessary, replace the power supply. ● If necessary, replace the DC controller. 64 Chapter 2 Solve problems ENWW