JVC XV-N30BK(MK3) Service Manual page 19

4.6 Display of current value of laser
(1) Set the main body at test mode.
(2) Press "CHOICE" key of the remote controller three times. Then, FL display is displayed "CK".
(3) The laser current value can be switched between the value of CD and that of DVD by pressing the following key of the remote
controller.
The number shown in the FL display shows mA of current value of laser.The first two numbers ("25" in "2530") shows current
value of laser at the time of adjustment after the latest all-initialization, 25mA in this example.The last two numbers ("30" in
"2530") shows the present current value of laser, 30mA in this example.The first two numbers ("25" in "2530") usually shows
current value of laser at the time of shipment, so you can see how the product has been deteriorated by comparing the first two
numbers ("25" in "2530") and the last two numbers ("30" in "2530").
CD:
The laser current value of 65 mA or less is normal.
The laser current value of over 66 mA is not normal. Laser diode of the pickup has been deteriorated.
DVD:
The laser current value of 80 mA or less is normal.
The laser current value of over 81 mA is not normal. Laser diode of the pickup has been deteriorated.
To return to test mode, press "STOP" key of the main body.
4.7 Flap adjustment of the pick-up guide shaft
Please perform flap adjustment of the pick-up guide shaft in the following case:
• Just after you exchange the pick-up.
• Just after you exchange the spindle motor.
• Just after you exchange the traverse mechanism base.
NOTE:
Please perform flap adjustment of the pick-up guide shaft when you exchange the parts above and also when you remove the
parts above.
• When the reading accuracy of the signal is bad (There is a block noise in the screen, Screen stops in the outer circumference of a
disc, etc.)
4 key (laser of CD)
5 key (laser of DVD)
STANDBY/ON
DISPLAY
TITLE/
3D PHONIC GROUP RETURN CANCEL
1 2 3
6 key
5 6
4
8 (display of jitter value)
7 9
10 0 +10
ANGLE SUB TITLE AUDIO ZOOM
TOP MENU MENU
CHOICE key
CHOICE ENTER
(switch of mode)
SLOW VFP ON SCREEN
PREVIOUS SELECT NEXT
CLEAR
FL Display (Example)
2530
POWER key
Remote controller "4" key --- Laser of CD
Remote controller "5" key --- Laser of DVD
FL Display
PLAY key
(for test mode and jitter value)
STOP key
(for test mode)
(No.XA014)1-19