JVC MX-JD8 Service Manual page 39

4.3 Service mode
4.3.1 Confirming contents
(1) System micon reset
(2) System micon cold start
(3) FL display check
(4) Micon version check
(5) DVD region check
(6) DVD test mode
4.3.2 Confirming methods
1. System micon reset
When DVD mechanism stuck, this may solve the problem without removing/inserting power cord.
Press the STANDBY/ON, CANCEL
and PAUSE buttons on the main unit
simultaneously.
2. System micon cold start
This function clears all user setting, and return to initial setting.
Daily timer, REC timer
Tuner preset
SEA preset
Last condition (Source, Volume)
Press the SET UP, "4" and "0" buttons
twice on the remote controller at standby.
This unit returns to initial setting.
3. FL display check
This enables all FL segment light up.
Press the SET UP, "4" and "+10" buttons
on the remote controller at standby.
All of the FL displays light up.
System micon is initialized.
FL indication
" COLD SET "
(No.MB282)1-39