Adjustment; Attention In Service Of Dvd Section; Test Mode; Dvd Check Modes - JVC NX-D7UX Service Manual

4.1

ATTENTION IN SERVICE OF DVD SECTION

1. When pickup, Flash ROM, DVD module board was changed, initialize EEPROM by all means.
2. When full initialization was executed, execute learning with a DVD test disc by all means.
Test disc: VT-501, VT-502
Learning method: It is adjusted automatically by normal playback of a DVD disc.
4.2

TEST MODE

4.2.1 TO ENTER DVD TEST MODE
1. AC Power OFF.
2. Press and hold EJECT keys on the front panel. Then AC power ON while holding EJECT key for 2 seconds.
3. Mode select by MENU key.
During version indication
Press >>| key : Normal initialize
STOP key press for 4 seconds : Full initialize
CHECK mode : Refer 4.2.2 DVD CHECK MODES

4.2.2 DVD CHECK MODES

1. Press MENU key again to enter CHECK MODE.
(TEST MODE, MODE STATUS, CHECK MODE)
C H E C K
(1)During CHECK mode, press '1' key on REMOTE CONTROL to START PLAYBACK.
P L A Y B A C K
(2)During CHECK mode, press '2' key on REMOTE CONTROL to perform SEARCH TNO+1.
W O B B L E
c c c
(3)During CHECK mode, press '3' key on REMOTE CONTROL to perform SEARCH TNO-1.
C H E C K
(4)During CHECK mode, press '4' key on REMOTE CONTROL to light up CD_LD and display CD laser current.
C D
c c c
(5)During CHECK mode, press '5' key on REMOTE CONTROL to light up DVD_LD and display DVD laser current.
D V D
c c c
(6)During CHECK mode, press '6' key on REMOTE CONTROL to enter DVD x 2 JITTER MEASUREMENT MODE.
J I
c c c
(7)During CHECK mode, press '7' key on REMOTE CONTROL to view DVD module EEPROM content in -1 address step.
E E P
c c c
(8)During CHECK mode, press '8' key on REMOTE CONTROL to view DVD module EEPROM content in +1 address step.
E E P
c c c
SECTION 4

ADJUSTMENT

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L S R
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L S R
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T X 1
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B W D
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F W D
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(No.MB711<Rev.002>)1-17