JVC UX-G68E, Service Manual

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1-20 (No.MB595)
SECTION 4
ADJUSTMENT
4.1 Attention in service of DVD section
(1) When pickup, Flash ROM, DVD module board were changed, initialize EEPROM by all means.
(2) When full initialization was executed, execute learning with a DVD test disk by all means.
Test disc : VT-501, VT-502
Learning method : It is adjusted automatically by normal playback of a DVD test disc.
4.2 DVD test mode
4.2.1 TO ENTER DVD TEST MODE
4.2.2 TO EXIT DVD TEST MODE
(1) During TEST MODE (except for Device Key write & DVD Region Re-write), press POWER key.
(2) To exit TEST MODE for Device Key Write & DVD Region Re-write, first AC OFF, then AC ON again to return to normal state.
4.2.3 DVD MODULE EEPROM INITIALIZATION
4.2.4 DEVICE KEY CHECKSUM DISPLAY
4.2.5 DVD CHECK MODES
(1) AC Power OFF.
(2) Press and hold DVD/CD + keys on the front panel. Then AC power ON while holding these keys.
(3) DVD mechanism will start in TEST MODE. The following will be display on the set.
xx = Destination information as follows; JC/1U/D/E/2U/3U/UB/UT/4U/UY/EE/UF
y = region number
v = study state information from MECHA-CON
w = initialization state from MECHA-CON
'v' Status 0 1 2 3
DVD Learned
CD Learned
Y
Y
N
Y
Y
N
N
N
'w' Status 0 3 BLANK
Initialize Status Normal Full Not Initialize
T x x y v w
No. STEP NORMAL INITIALIZE FULL INITIALIZE
(1) During DVD TEST MODE Press key on front panel Press STOP key on front panel and hold for 4 seconds
(2) System display --> w status w = 0 (Normal initialize) w = 3 (Full initialize)
(1) During TEST MODE, press MENU key on remote control to enter DEVICE KEY CHECKSUM display for
DVD-AUDIO (CPPM).
(2) System will display as follows.
(3) Press MENU again to enter DEVICE KEY CHECKSUM display for DVD-VR MODE (CPRM).
(4) System will display as follows.
C P P M x x x x
(1) Press MENU key again to enter CHECK MODE
(TEST MODE, MODE STATUS, CHECK MODE)
i) During CHECK mode, press '1' key on REMOTE CONTROL to START PLAYBACK.
ii) During CHECK mode, press '2' key on REMOTE CONTROL to perform SEARCH TNO+1
(2
seconds)
Status : AA 00 cc cc jj jj
iii) During CHECK mode, press '3' key on REMOTE CONTROL to perform SEARCH TNO-1
iv) During CHECK mode, press '4' key on REMOTE CONTROL to light up CD_LD and
display CD laser current.
(2 seconds)
Status : AA 00 cc cc jj jj (Static)
v) During CHECK mode, press '5' key on REMOTE CONTROL to light up DVD_LD and
display DVD laser current.
(2 seconds)
Status : AA 00 cc cc jj jj (Static)
P L A Y B A C K
W O B B L E
c c c c j j j j
L C D D R L S
c c c c j j j j
L V D D D R L S
c c c c j j j j
C H E C K
C H E C K