Furuno FS-75 User Manual

FELCOM 82
H3-24
The table below lists RAMs and ROMs that are tested during the memory test. The SYS
CPU sends read and write commands to each memory location.
Item Circuit ROM RAM
MAIN System CPU U95, Flash U130, U134, U136, U139
DECODE Decoder DSP U16, Flash Built into DSP
TERM Terminal DSP U46, Flash Built into DSP
SYNC Synchronous DSP U9, Flash Built into DSP
DEMOD Demodulator DSP U3, Flash Built into DSP
HANDSET If communication between Handset CPU and SYS CPU is normal, the
test result is OK.
ANTENNA PCU CPU checks ROM/RAM in PCU.
3.2 Using terminal unit
The same self-test as the one carried out from the handset can be made from the
terminal unit. To test the unit;
1. Press [F4] [6] [4] and [Enter] in this order.
2. Press [Y] key followed by [Enter] key. The test result appears on the screen as
follows.
… Now executing Test (cannot abort) …
----- TEST RESULT -----
MAIN OK DEMOD OK
TERM OK SYNC OK
HANDSET OK DECODE OK
ANTENNA OK
The table below lists RAMs and ROMs to be tested during the memory test. The SYS
CPU sends read and write commands to each memory location.
Item Circuit ROM RAM
MAIN System CPU U95, Flash U130, U134, U136, U139
DECODE Decoder DSP U16, Flash Built into DSP
TERM Terminal DSP U46, Flash Built into DSP
SYNC Synchronous DSP U9, Flash Built into DSP
DEMOD Demodulator DSP U3, Flash Built into DSP
HANDSET If communication between Handset CPU and SYS CPU is normal, the
test result is OK.
ANTENNA PCU CPU checks ROM/RAM in PCU.

Furuno FS-75 Specifications

General

Brand	Furuno
Model	FS-75
Category	Marine Equipment
Language	English