Factory Test - Furuno NX-700B Service Manual

7.1.3 Factory Test

Procedure
1. Turn on the power while holding down both [+] and [-] keys of the DIM key. Keep
holding down the keys until the Memory Test starts.
Memory Test
2. This Memory test is the same as the Memory Test performed in the setting of
"[MENU] -> Initialize 2 -> Serviceman Test". See page 7-5 for details.
Key Test
3. To proceed to the Key Test from the Memory Test, press any key.
This test is the same test performed in the setting of "[MENU] -> Service -> Test".
See page 7-3 for details.
Loopback Test
4. To proceed to the Loopback Test from the Key Test, press all the keys or press no key
for 10 seconds. Before starting this test, configure the jumpers according to the table
below.
In the checking of the Printer and INS, a certain ASCII code is sent, and if it is
received, the result is judged as OK. In the checking of Receiver 1 and Receiver 2, L
and H levels are sent and if each level is detected, the result is judged as OK.
Loopback Test
Printer
INS
Receiver1 : OK
Receiver2 : OK
Test item Model
NX-700A
Printer
NX-700B
NX-700A
INS
NX-700B
NX-700A
Receiver1
NX-700B
NX-700A
Receiver2
NX-700B
: OK
: OK
Hit any key
Table 7.1.1 Sections to be Jumpered for Loop-back Test
NX-700B :
[RECEIVER]
NX-7001: J403
(WAGO)
NX-7001 J402
(WAGO)
NX-700B :
[RECEIVER]
NX-700B :
[RECEIVER]
Sections to be jumpered
#1 (SD) - #14 (RD)
#1 (TD A) - #4 (RD A)
#2 (TD B) - #5 (RD B)
#6 (FRQ TD-A) - #8 (518 RD-A)
#19 (FRQ TD-B) - #21 (518 RD-B)
#5 (TEST TD-A) - #7 (490 RD-A)
#18 (TEST TD-B) - #20 (490 RD-B)
7-6
7.1 Self Test
#4 (SD) - #5 (RD)