6
BDP-170
1
2
3
4
A
B
C
D
E
F
1
2
3
4
3.3 DETAILED DESCRIPTION OF ITEMS USED IN SERVICE
2. [7] Enter SP Mode
1
Select "[4] Laser Check" with the
b
button from the Service Mode screen and press the [ENTER] button.
(perform without disc in tray)
2
After a few seconds, measurement and judgment results will be displayed, as shown below.
If all measurement (Meas) values are 1/3 or greater or less than triple the target values (hex), [Pass] will be displayed.
If any of the measurement values is out of this range, [NG] will be displayed.
There are 17 items in the SP Mode, the main items being for Production line and Design/Development.
The following is to explain items usable in Service. Other items require time for completion, or are not suited for Service
purposes. If you select them by mistake, press the [STOP] button to end that item you accidentally selected.
(none of the items will affect the main unit)
1. [4] Laser Check
Example
BD
Target:
0x01b
Meas:
0x01b
OK
0x01b
×
3 = 0x051
Meas is 0x051 or more : NG
0x01B
×
1/3 = 0x009
Meas is 0x009 or less : NG
Verifies the output value of each laser diode inside the pick-up area. Implement according to the following procedures.
("0x" is simply to express the hex,
so it is not necessary in the calculation)
