Adjustment - JVC TH-M303 Service Manual

4.1 Test mode setting method
(1) Unplug the power plug.
(2) Insert power plug into outlet while pressing both "PLAY" key and "STANDBY/ON" key of the main body.
"Area code" is indicated at the upper left of display,
(3) To release test mode, press "STANDBY/ON" key of the main body.
NOTE:
Each pressing of "MENU" key of the remote controller in test mode changes the mode as follows.
TEST # -------------
-------------------------
_
FL Display becomes all lighting
CHECK -------------------------
4.2 Method of displaying version of firmware
(1) Set the main body at test mode.
(2) Press "MENU" key of the remote controller twice. Then, version number and alphabetical letter of the system controller and the
back end are displayed in the FL display as follows.
FL Display (Example)
110_3e_0034
System version
MENU key
(switch of mode)
SECTION 4

ADJUSTMENT

Becomes test mode
Checksum of device key
------ Version of microcomputer (Refer to "4.2 Metod of displaying version firmware".)
Mechanism check mode
Back end (BE) microcomputer
Mechanism microcomputer
Mechanism ROM collection
Sys ROM collection
PLAY key
(for test mode)
STANDBY/ON key
(for test mode)
0 DVD/CD finishing study
#
1 only CD
2 only DVD finishing study
3 DVD/CD not study
0 Normal initialize END
3 Full initialize END
FE microcomputer learning processing condition
: Area code # : Rejion code
Sys Mecha BE
3 3 1
ver R R ver ver
FL display
after power off
4
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