Adjustment Method; Initialization Method; Display Of "Laser Current Value" And "Jitter Value - JVC XV-S300BK Service Manual

XV-S300BK/XV-S332SL/XV-S402SL/XV-S403SG

3.1 Initialization method

If microprocessor (IC401,IC402,IC451) or pick-up is replaces, initialize the
DVD player in the following matter
(1) Take out the disc and close the tray.
(2) Unplug the power plug.
(3) Insert power plug into outlet while pressing both "PLAY" button and "OPEN/CLOSE" button.
(4) FL Display indicate "TEST * * #" ,
(5) Press "3D-PHONIC" button of remote controller. and EEPROM initialize start.
(6) When indicate "DTS" on the display, initialize finishes.
(7) The power is turned OFF, and Unplug the power plug.

3.2 Display of "Laser current value" and "Jitter value"

"Laser current value" and "Jitter value" are displayed on the FL display by the undermentioned
method. Please refer to the failure diagnosis.
(1) Take out the disc and close the tray.
(2) Unplug the power plug.
(3) Insert power plug into outlet while pressing both "PLAY" button and "OPEN/CLOSE" button.
(4) FL Display indicate "TEST * * #" ,
(5) Press the "OPEN/CLOSE" button to move the tray outward.
Put the test disc (VT-501) on the tray and press "OPEN/CLOSE" button.
The tray should move inward (Note:Don't push to close the tray directly by hand etc.)
(6) Press the "PLAY" button.
(7) After a few seconds, the laser current value and the jitter value is displayed on the FL indicator as follows.
Laser current value
3.2.1 For Laser current value
The laser current value becomes 40mA for the above-mentioned.
Becomes a test mode by doing above-mentioned procedure 1) - 4). Afterwards, the laser current value can
be switched by pushing the button to remote controller without turning on the disk.
Remote control "4" button --- Laser of CD
Remote control "5" button --- Laser of DVD
It can be judged it is simply good if the displayed current value of the laser is smaller than that of the undermentioned value.
Moreover, there must be a deteriorated possibility and the pick-up must exchange the pick-up more than the undermen-
tioned value.
5 Button
(Laser of DVD)
4 Button
(Laser of CD)
3D PHONIC
Button (Initialize start)
16
SECTION 3

Adjustment method

* * :Version, #" :Region code
* * :Version, #" ::Region code
FL Display(example)
0 0 3 5 1 8 B 6
Jitter value
Fig.3-1
Laser current value of CD ------ 49 mA or less
Laser current value of DVD ---- 64 mA or less
DTS Display part
(Initialize complete)
POWER Button
Fig.3-2
* The test mode is canceled when
the power is turned off.
*Returns to a usual test mode by the
thing to push the "STOP" button of
remote controller.
OPEN/CLOSE
Button(Test mode)
FL Display
PLAY Button
(Test mode & display of jitter)