4-4
4.3
Diagnostics
Your equipment incorporates a diagnostic self-test facility to check the devices and controls for
proper operation.
1. Turn on the unit while pressing any key.
2. Press the [-] key to start the diagnostic test. The diagnostics screen appears, devices are
checked and the results displayed as OK or NG (No Good).
3. Operate all controls one by one. Confirm that key name and switch position are correct.
Note:
Do not place the [MODE] switch in the POWER ON position; power will be turned off
(* SELF TEST *)
PROM
: OK
E2PR
: OK
SRAM
: OK
VRAM1 : OK
VRAM2 : OK
SIO
: NG*
KEY
: NONE
RANGE : 1
GAIN
: 14
MODE
: MENU
PLEASE CHECK KEYS/SWITCHES.
REDDISH-BROWN
RED
ORANGE
YELLOW
GREEN
LIGHT-BLUE
BLUE
FREQ
: 50 kHz#
DEVICE CHECK
Major devices are checked.
OK for normal, NG (No Good)
for error.
PANEL SWITCH CHECK
Operate each key and switch.
Confirm that key name and
switch position are correct.
* Special connection
cable required to check SIO.
NG displayed when cable is
not connected.
# 200 kHz depending
on transducer used.
Note:
If NG apepars instead of OK for any device or panel switch, contact FURUNO for
service. Do not attempt to check inside the unit because of the high voltage used in the
equipment.
4. To terminate the test, turn the power off.
