JVC XV-S300BK Service Manual page 17

3.2.2 For Jitter value
The jitter value is displayed on the FL display referring to the previous page.
The jitter value is displayed by the hexadecimal number.
In the following cases, please "Flap adjustment of the pick-up guide shaft" referring to the following page.
Before using the TEST disc VT-501, careful check it if there is neither damage nor dirt on the read surface.
Returns to a usual test mode by the thing to push the "STOP" button ot remote controller.
< In the following cases, please adjustment >
• When you exchange the pick-up
• When you exchange the spindle motor
• When the reading accuracy of the signal is bad (There is a block noise in the screen etc..)
5 Button
(Laser of DVD)
4 Button
(Laser of CD)
3D PHONIC
Button (Initialize start)
DTS Display part
(Initialize complete)
POWER Button
Fig.3-3
XV-S300BK/XV-S332SL/XV-S402SL/XV-S403SG
OPEN/CLOSE
Button(Test mode)
FL Display
(Test mode & display of jitter)
PLAY Button
17