MDX-E300
16
MDX-E300
●
Confirmation of pick-up laser power
Recording and reproduction can be checked by using the
laser power meter. However it should be used for check-
ing only because there is variation in its measurement.
When the measured value is excessively deviated from
the reference value, replace the pick-up.
Reference value (measured at room temperature of
25
°
C)
During reproduction (ppw) : 0.72
±
0.1 mW
During recording : 5.5
±
0.5 mW
Note : Be very careful when using the laser power meter.
The laser beam would cause damage to your eye if
exposed to it directly.
●
TEMP (temperature standard) setting
(Make this setting quickly when the room tempera-
ture is within the range of 21 ˚C to 29 ˚C and the
P.C.B. is cold.)
(1) Set to the TEMP setting mode menu.
[
TEMP
❍ ❍ ◆ ◆
]
❍ ❍
: Temperature measured value
◆ ◆
: Temperature setting value
(2) Make temperature correction based on the ambient
temperature and according to the following table.
Example : When the temperature measured value is 7A
H
and the ambient temperature is 22 ˚C:
7A
H
(measured value) - 01
H
(correction value) = 79
H
(setting value)
* If the temperature measured value deflects between two val-
ues, use the smaller value (If 7A
H
and 79
H
in the above ex-
ample, use 79
H
.)
(3) Using the jog dial, match the value obtained in Step
(2) with the temperature setting value.
Example : When the temperature measured value is 7A
H
and the ambient temperature is 22 ˚C:
[
TEMP
7A
79
]
Ambient temperature
Correction value
+ 21.0 ˚C ~ + 23.2 ˚C
– 1
H
+ 23.3 ˚C ~ + 26.8 ˚C
±
0
H
+ 26.9 ˚C ~ + 30.7 ˚C
+ 1
H
Check procedure Mode
Check item
Judgement
Possible cause and check content
(Pin 3 of IC1401)
q
Playback power output “ppw”
DC 0.2V
OK (Move on to check
w
.)
–
DC 1.5V
NG
Perform *1.
w
Recording power output “rpw”
DC 1.8V
OK (End of checking.)
–
Less than DC1.5V NG
Perform *2.
“rpw” not achieved.
–
NG
Perform *1.
*1:
Poor soldering of the line at Pin 100 of IC1401.
Check the line of Pin 93 of IC1401 for short and poor soldering. (Check all the way to the SW P.C.B.)
*2:
Check the line of Pin 3 of IC1401 for poor soldering and short with other patterns.
Check the pick-up laser for breakage.
Temperature setting value
1. EJECT mode
Step
Setting method
Remark
Display
1
2
3
4
5
6
7
8
EJECT status in the TEST mode
Press the INPUT button (REMOCON).
Press the INPUT button (REMOCON).
Press the INPUT button (REMOCON).
Press the TITLE edit button (REMOCON).
Press the CHARA. button (REMOCON).
Press the DISPLAY button (REMOCON).
Press the DELETE/CANCEL button (REMOCON).
EJECT menu (No disc is loaded.)
Reproduction power output status
Recording power output status
Since this mode is not required for servicing , proceed to another mode promptly.
To TEMP setting
(Refer to TEMP setting)
To CONTROL1 setting
To CONTROL2 setting
EJECT menu
[ _ _
EJECT
_ _ _ ]
[
ppw
_ _ _ _ _ _ _ ]
[
rpw
_ _ _ _ _ _ _ ]
[
xpw
_ _ _ _ _ _ _ ]
[
TEMP
_
❍ ❍
_
◆ ◆
]
[
CONTROL1
_
08
]
[
CONTROL2
_
02
]
[ _ _
EJECT
_ _ _ ]
(Jog dial)
Details of Test Mode
