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7.2. Service Mode Table
Below is the various special modes for checking:-
7.2.1. Service Mode Table 1
Item FL Display Key Operation
Mode Name Description Front Key
Self -Diagnostic Mode To enter into self diagnostic
checking for main unit.
1. Select [ ] for CD mode
(Ensure no CD inserted).
2. Press and hold [ ]button
for 2 seconds follow by
[].
To exit Doctor Mode, press button
on main unit or remote control.
Doctor Mode To enter into Doctor Mode
for checking of various
items and displaying
EEPROM and firmware ver-
sion.
Note: The micro-processor
version as shown is an
example. It will be revise
when there is an updates.
FL Display sequence Dis-
play 1 → 2
(Display 1)
Checksum : (Condition 1)
(a) If there is NO EEPROM header string
OR
(b) If there is no EEPROM ( no data is
received by micro-processor) [NO] is dis-
played.
Checksum : (Condition 2)
If the version of the EEPROM does not
match or not working properly [NG] is dis-
play.
Checksum : (Condition 3)
If the EEPROM version matches, checksum
[YYYY] is displayed.
(Display 2)
The Checksum of EEPROM and firmware
version will be display for 2 sec.
In CD mode:
1. Press [ ] button on main
unit follow by [4] and [7] on
remote control.
To exit Doctor Mode, press but-
ton on main unit or remote control.
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