JVC XV-FA90BK Service Manual page 26

XV-FA90BK/XV-FA92SL/XV-FA95GD
(7) Flap adjustment of the pick-up guide shaft
<Tool list for adjustment>
Stud (four pieces set)
Parts No. : JIGXVS40
Hex wrench for adjustment
Off-the-shelf (1.3mm)
Test disc
VT-501 or VT-502
<Adjustment preparation>
1. The metal cover is detached, the "OPEN/CLOSE" button is pushed, and the tray is done in open.
2. The AC plug code is pulled out once in the state.
3. Remove the surround audio board and surround audio terminal board respectively.
4. The traverse mechanism is detached, and the card wire is connected with CN210.
5. The stud is installed in the traverse mechanism as shown in Figure.
The clamper is removed from the clamper base.
6. The disk (Everything is good) is put on sub-tray 1, the test disk is put on the turntable in the traverse
mechanism, and fixes by the clamper.
7. The card wire becomes under the main tray, and the main tray is closed by hand operated.
8. The AC plug code is inserted, and the "DISC1" button is pushed
(Please push the "DISC1" button directly without pushing the power supply button).
9. Because the playback of "DISC1" starts, stops and the AC plug code is pulled out.
<Adjustment method>
10.The AC plug code is made insertion test mode while pushing the "PLAY" button and the "STOP" button of
the main body at the same time.
11.Please push the "PAUSE" button after pushing the "FORWARD SKIP" button of the main body, and confirm
DVD AUDIO indicator lights after a few seconds.
12.When the "CHOICE" button of remote controller is pushed three times, it is displayed on the FL display as
"CHECK".
13.The display of the FL display changes into "CHECK OK" after a few seconds if the "PAUSE" button of the
main body is pushed in the state.
When the "PLAY" button of the main body is pushed afterwards, the jitter value is displayed on the FL display.
Disc(Everything is good)
on the sub tray 1
push
<Adjustment>
1.Puts into the state to display the jitter value on the FL display referring to "(6) Display of jitter value".
2.The adjustment screw under the traverse mechanism is turned with hex wrench, and matches so that the
jitter value displayed on the FL display may become minimum value.
Adjustment screw a
1-26
CN210 and card wire
Clamper
Traverse mechanism
Stud
Stud
Main tray
Adjustment
screw c
Adjustment screw b
Stud
TEST Disc
Stud
<POINT>
1.turns in the forward or the opposite direction,
and makes to the position where the jitter value
is good the half rotation of adjustment screw a
and b(180 degrees) respectively.
2.Afterwards, adjustment screw b and c are turned
in the same way, and makes to the best position.
Main tray
Card wire