Diagnostics - Furuno CH-250 Operator's Manual

6.8

Diagnostics

1. Press the [MENU] key to open the menu.
2. Press to select MENU, and then press
3. Press to select GO TO SYS MENU.
4. Press to select YES.
5. Select TEST and press
alternately for one second while the test is being conducted. In a few moments the results of
the test appear.
MAIN PROGRAM NO. 0650110-0**
PANEL PROGRAM NO. 0650104-0**
ROM
RAM
VRAM
NMEA
PANEL CPU
TX FREQUENCY
ROLL
PITCH
TRAIN
TEST COUNT= : 0
PANEL
0-127
(LED)
0
0
0
0
* = Requires special plug to test. Nothing displayed when plug is not connected.
** = Program Version No.
† = Frequency depends on transducer used.
Interpreting the test results display
The program numbers of the MAIN and PANEL programs appear at the top of the display.
The ROM, RAM, VRM, NMEA and PANEL CPU are checked for proper operation and the
results displayed as OK or NG (No Good). For NG contact a FURUNO agent or dealer for
advice.
The TX FREQUENCY of the transducer is measured and displayed.
6-6
to start the test. The lamps above the XDR switches light
: OK
: OK
: OK
: OK*
: OK
: 60 kHz†
: 10
: 10
PULSES NG
357 0
0 0 0
0 0 0 0
0 0 0
0
Figure 6-2 Test results
to select SYS.
REMOTE CONTROL
0 0 0
0
0 0
0 0 0
0 0 0
0 EXIT
0 0
0 0
0 0
0 0
0
0