Chapter 7 Troubleshooting; Maintenance; Common Problems; Power Problems - Kurzweil KME61 - REV A User Manual

Chapter 7
Troubleshooting

Maintenance

Aside from normal care in handling and use, your KME61requires no regular maintenance.
Clean with a soft cloth dampened with water. Never use abrasives or solvents as they may
damage the unit's paint, markings, and display lens.
replace-ever. Instead of volatile SRAM used in most other instruments, your KME61 uses
nonvolatile EEPROM for storage, which retains information as captured electrons, without
power.

Common Problems

Below is a list of the most commonly encountered problems and suggestions for solving them.

Power Problems

The LCD and LEDs will display a short startup sequence when power is turned on then
begin normal operation. If nothing at all happens when you turn the power switch on (solid
line "|" pressed in), check these items:
• Power module not plugged securely in wall outlet.
• Cord from power module not fully plugged into KME61.
• Input voltage rating of power module does not match your power system.
• Incorrect or defective power module. The power module specifications are:
• Dead wall outlet, power strip, or extension cord.
If there's evidence of life but operation isn't quite normal, check these items:
• Input voltage rating of power module does not match your power system.
• Incorrect or defective power module. See above for power module specs. Voltage
• Power system voltage abnormally low. Try a different, unused outlet.
• Intermittent operation can be caused by a replacement power module with the
9.5VAC, 2.0 amp, center pin positive, 5.5mm OD, 2.5mm ID coax type plug
(Kurzweil Model No. PP95-20).
or current rating less than specified will cause unusual or intermittent operation.
wrong size plug. The correct plug fits snugly into the jack, and doesn't wobble.
There are no batteries inside to