Preparations; Discharging Of The Flashlight Power Supply - Sony MVC-FD83 Service Manual
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Also See for MVC-FD83:
- Operating instructions manual (133 pages) ,
- Service manual (20 pages) ,
- User manual (2 pages)
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1-1-2.
Preparations
Note 1: For details of how remove the cabinet and boards, refer
to "2. DISASSEMBLY".
Note 2: When performing only the adjustments, the lens block
and boards need not be disassemble.
1) Connect the equipment for adjustments according to Fig. 5-1-
5.
2) Connect the Adjusting remote commander to PK-47/48 board
CN801 via CPC-9 jig (J-6082-393-B). (See Fig. 5-1-3)
Note 3: Setting the "Forced STILL mode power ON" Mode
1) Select page: 0, address: 01, and set data: 01.
2) Select page: D, address: 10, set data: 01, and press
the PAUSE button of the adjusting remote com-
mander.
The Above procedure will enable the camera power
to the turned on. After completing adjustments, be
sure to exit the "Forced STILL mode power ON
Mode".
Note 4: Exiting the "Forced STILL mode power ON Mode"
1) Select page: 0, address: 01, and set data: 01.
2) Select page: D, address: 10, set data: 00, and press
the PAUSE button of the adjusting remote com-
mander.
3) Select page: 0, address: 01, and set data: 00.
1-1-3.
Discharging of the flashlight power supply
The capacitor which is used as power supply of flashlight is charged
with 200 V to 300 V voltage. Discharge this voltage before start-
ing adjustments in order to protect service engineers from electric
shock during adjustment.
Discharge procedure
1. Press the FLASH button (PK-47/48 board S708 and turn off
the FLASH LED (PK-47/48 board D708).
2. Fabricate the discharging jig as shown in Fig. 5-1-4 locally by
yourself. Connect the discharging jig to the positive (+) and
negative (–) terminal of the flash voltage charge capacitor. Al-
low ten seconds to discharge the voltage.
FLASH
UNIT
Fig. 5-1-4
Capacitor
BATTERY
HOLDER
5-5
Pattern box
Front side of the lens
18 pin flexible board
(Note)
CPC-9 jig
(J-6082-393-B)
CN2
Note: Don't use the 12 pin flexible board of CPC-9 jig. It causes
damage to the unit.
R: 1 kΩ 1 W
(Part code: 1-215-869-11)
L
L = About 90 cm
Fig. 5-1-2
PK-47/48 board
CN801
Conductor side
Fig. 5-1-3
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