Service manual

Chapter 5
5-31
F-5-11
c) Line signal reception test
The line detect test menu is selected by pressing the numeric key 9 or key and key from the faculty test menu.
This test checks the operation of the NCU signal sensor and frequency counter. In Menu 1, the CI, status can be
detected and in Menu 2 the frequency can be detected at changing detection levels.
c-1) Test Menu 1
Test Menu 1 is selected by pressing the numeric key 1 or key and key from the Line Detect menu. When CI, and
6-7: PANEL
6-7: PANEL
LED TEST
Press Color start key
Press Color start key
Press Color start key
Press Color start key
Continue pressing color start key
until every LED lamp is tested.
H Pattern display
ALL LCD dots displayed
_ pattern display
Every time pressing color start key,
a LED lamp is turned on one by one.
When a key is pressed, the
corresponding character goes out.
123456789*0#
When the entire
display has gone out
When a key is pressed, the
corresponding character goes out.
OCFSPMUH-+TERNL
OK
When the entire
display has gone out
Press the Stop/Reset key to end the test.