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2.POWER SUPPLY DURING REPAIRS
In this unit, about 10 seconds after power is supplied to the battery terminal using the reer is shut ofgulated pof so wer supply (8.4V), the pow
that the unit cannot operate.
This following two methods are available to prevent this. Take note of which to use during repairs.
Method 1.
Use the AC power adaptor.
Method 2.
Connect the servicing remote commander RM-95 (J-6082-053-B) to the LANC jack, and set the commander switch to the OADJ� side.
3.TO TAKE OUT A DISC WHEN DISC COVER DOES NOT OPEN (FORCE OPEN)
1 Remove the cabinet (R) assembly.
2 Remove the ST-118 board, ST holder, etc.
3 Remove the heat sink (450), VC radiation sheet, etc.
4 Remove the lens section.
A5 Push the portion A in the direction of the arrow and open the
disc cover.
4.NOTES ON HANDLING THE OPTICAL PICK-UP5.PRECAUTION FOR CHECKING EMISSION OF
The laser diode may suffer electrostatic breakdown because of theLASER DIODE
potential difference generated by the charged electrLaser light of the equipment is focused by the object lens in theostatic load, etc.
on clothing and the human body.optical pick-up so that the light focuses on the reflection surface of
During repair, pay attention to electrostatic breakdothe disc. wn and also useTherefore, be sure to keep your eyes more then 30 cm
the procedure in the printed matter which is included in the repairapart from the object lens when you check the emission of laser
parts.diode.
The flexible board is easily damaged and should be handled with
care.
6.DISCHARGING OF THE FLASHLIGHT POWER SUPPLY CAPACITOR
The power supply capacitor (ST-118 board JL6501, JL6502) of the flash are charged up to the maximum 300V potential.
There is a danger of electric shock by this high voltage when the capacitors are handled bby the chary handge. d The electric shock is caused
voltage which is kept without discharging when the main power of the unit is simply ture must bened off. Therefore, the remaining voltag
discharged as described below.
6-1.PREPARING THE SHORT JIG
1 k &/1 W
To preparing the short jig, a small clip is attached to each end of a
resistor of 1k& /1W (1-215-869-11)
Wrap insulating tape fully around the reads of the resistor to prevent
electric shock.
Wrap insulating tape
6-2.DISCHARGING THE CAPACITOR
1 Remove the cabinet (R) section.
2 Connect the JL6501 (Check land of discharge) on the ST-118 board and the JL6502 (Check land of discharg forge) by using the short ji
about 10 seconds.
JL6502
(check land
of discharge)
JL6501
ST-118 board(check land
of discharge)
Shorting jig
(1k& / 1w)
DCR-DVD403/DVD403E/DVD803/DVD803E
1-2 |
ACEC
