ELECRAFT K4 - Page 117

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V. TROUBLESHOOTING
This section provides troubleshooting information in several
categories: GENERAL, RECEIVE, and TRANSMIT. Following this is a list
of error messages that may appear on the LCD, indexed by error
number (see ERROR MESSAGES).
GENERAL
At power-up or after a software update, the 4 LEDs above the VFO
stay on, while the LCD remains off: This may be caused by
equipment connected to the K4's ACC jack. Disconnect everything but
the power cable. Turn the radio off and back on.
One common cause of this is an attached HDMI monitor going into
"sleep" mode. Unplug the monitor's vedeo and USB cables, then
restart the K4. You may be able to disable the monitor's "sleep mode"
using its menu.
Another common cause is a defective 15-pin accessory cable. Make
sure there are no bent pins or wiring shorts.
Stuck at Elecraft logo on power-up: This may be due to a
connected peripheral that is incompatible with the K4. First try
unplugging the external monitor, if applicable, then other attached
devices. Turn power off/on for each re-test.
Software update fails: Tap the "?" button from within the UPDATE
function. Scroll to the bottom of the window for update-specific
troubleshooting information.
You may have a missing internet connection. Or the system date may
be set incorrectly. To correct this: (1) exit from the UPDATE function;
(2) tap the date/time field, then hold the <SET> button; (3) turn on the
"Set Date/Time Automatically" checkbox.