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HCD-J300
QQ
3 7 63 1515 0
6. Press the
or
. "R"
> "R"
of the laser power meter becomes the specified value, press the
button to save it.
ENTER/YES "R"
KMS-260B
SPECIFIED VALUE
KMS-260E
Note: Do not perform the emission with 8.4 mW more than 15 seconds
continuously.
7. Then, press the
. "R"
"LDPWR CHECK" (C13).
8. Press the
button once to display "LD 0.9mW$
ENTER/YES "R"
". Check that the reading of the laser power meter matches
with the specified value as described in the following table.
KMS-260B
SPECIFIED VALUE
KMS-260E
9. Press the
ENTER/YES "R"
8.4mW$
". Check that the reading the laser power meter and
digital voltmeter satisfy the specified value.
Note down the digital voltmeter reading value.
Specified Value:
Laser power meter reading :
KMS-260B
SPECIFIED VALUE
KMS-260E
Digital voltmeter reading
: Value on the optical pick-up label ±10%
(Optical pick-up label)
For details of the method for
KMS260B
checking this value, refer to
20101
"8. Recording and Displaying
TE
H0576
L 13942296513
the Iop Information"
lOP=57.6 mA in this case
lOP (mA) = Digital voltmeter reading (mV)/1 ( Ω )
10. Press the
button to display "LDPWR CHECK"
MENU/NO "R"
(C13) and stop the laser emission.
(The
button is effective at all times to stop the
MENU/NO "R"
laser emission)
11. Press the
. "R"
or
> "R"
(C05).
12. Press the
ENTER/YES "R"
Ref=@@@.@ (@ is an arbitrary number), press the
button to display "Measu=@@@.@" (@ is an arbitrary
YES "R"
number).
13. The numbers which can be changed will blink. Input the Iop
value noted down at step 9.
To select the number : Press the
To select the digit
: Press the
14. When the
ENTER/YES "R"
be displayed momentarily. The value will be recorded in the non-
volatile memory and the display will become "Iop Write" (C05).
Note: After step 4, each time the
ENTER/YES "R"
display will be switched to "LD 0.7mW$
and "LD WP
" Nothing needs to be performed here.
The method of identifying the optical pick-up (KMS-260B/260E)
Pink : KMS-260B
UV adhesive agent =
White : KMS-260E
www
UV adhesive agent
.
36
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button so that the reading
6.7 to 7.1 mW
7.2 to 7.3 mW
or
> "R"
button to display
0.85 to 0.91 mW
0.90 to 0.96 mW
button once more to display "LD
6.8 to 7.2 mW
7.0 to 7.5 mW
button to display "Iop Write"
button. When the display becomes
ENTER/
. "R"
or
> "R
button.
[REC MODE]
button.
button is pressed, "Complete!" will
button is pressed, the
", "LD 7.5mW$
x
ao
y
i
Optical pick-up
(KMS-260B/260E)
http://www.xiaoyu163.com
8
11.Iop NV SAVE
Write the reference values in the nonvolatile memory to perform
"Iop compare". As this involves rewriting the reference values, do
not perform this procedure except when adjusting the laser power
during replacement of the optical pick-up and when replacing the
IC102. Otherwise the optical pick-up check may deteriorate.
Note: Perform this function with the optical pick-up set at room temperature.
Procedure:
1. Press the
. "R"
or
2. Press the
ENTER/YES "R"
3. After the display changes to "Iop =xxsave?", press the
YES "R"
button.
4. After "Complete!" is displayed momentarily, the display changes
to "Iop 8.4 mW".
5. After the display changes to "Iop=yysave?", press the
YES "R"
button.
6. When "Complete!" is displayed, it means that Iop NV saving
has been completed.
12. TRAVERSE ADJUSTMENT
Note 1:Data will be erased during MO reading if a recorded disc is
used in this adjustment.
Note 2:If the traverse waveform is not clear, connect the oscilloscope
as shown in the following figure so that it can be seen more
clearly.
BD board
CN105 pin 4 (TE)
CN105 pin 6 (VC)
Q Q
3
6 7
1 3
Connection:
BD board
CN105 pin 4 (TE)
CN105 pin 6 (VC)
Procedure:
1. Connect an oscilloscope to CN105 pin 4 (TE) and CN105 pin
6 (VC) on the BD board.
2. Load a disc (any available on the market). (Refer to Note 1)
3. Press the
M "R"
button to move the optical pick-up outside
the pit.
4. Press the
. "R"
ADJUST" (C07).
5. Press the
ENTER/YES "R"
(Laser power READ power/Focus servo ON/tracking servo OFF/
spindle (S) servo ON)
6. Press the
or
. "R"
the oscilloscope becomes the specified value.
(When the
. "R"
"
"EFB=
" changes and the waveform changes) In this adjustment,
waveform varies at intervals of approx. 2%. Adjust the waveform
so that the specified value is satisfied as much as possible.
(Read power traverse adjustment)
Traverse Waveform
VC
u163
Specification A = B
.
7. Press the
ENTER/YES "R"
adjustment to the non-volatile memory ("EFB =
be displayed for a moment. Then "EFB =
displayed).
2 9
9 4
2 8
> "R"
button to display "Iop NV Save" (C06).
button and display "Iop [stop]".
oscilloscope
(DC range)
330 k Ω
+
–
10 pF
1 5
0 5
8
2 9
9 4
oscilloscope
(DC range)
+
V: 0.1 V/div
–
H: 10 ms/div
or
button to display "EF MO
> "R"
button to display "EFB =
button so that the waveform of
> "R"
or
> "R"
button is pressed, the
A
m
B
co
button and save the result of
SAVE" will
MO-W" will be
9 9
ENTER/
ENTER/
2 8
9 9
MO-R".
of
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