8 diagnostics – Furuno CH-250 User Manual
Page 108
6-6
6.8 Diagnostics
1. Press the [MENU] key to open the menu.
2. Press to select MENU, and then press to select SYS.
3. Press to select GO TO SYS MENU.
4. Press to select YES.
5. Select TEST and press to start the test. The lamps above the XDR switches light
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**
RAM
: OK
ROM
: OK
VRAM
: OK
PANEL CPU
: OK
NMEA
: OK*
PANEL PROGRAM NO. 0650104-0**
TX FREQUENCY
: 60 kHz†
ROLL
: 10
PITCH
: 10
PULSES
NG
TEST COUNT= : 0
TRAIN
357
0
REMOTE CONTROL
PANEL
0 0 0
0
0
0 0 0
0
EXIT
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0-127
0
0
0
0
(LED)
0
0
0
0
0
0
0
* = Requires special plug to test. Nothing displayed when plug is not connected.
** = Program Version No.
† = Frequency depends on transducer used.
Figure 6-2 Test results
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.