Discharging Of The Flashlight Power; Supply Capacitor; Discharging The Capacitor Using; The Short Jig - Sony Handycam DCR-PC115 Service Manual

DCR-PC115/PC115E/PC120BT/PC120E
3. DISCHARGING OF THE FLASHLIGHT POWER SUPPLY CAPACITOR
The capacitor (C2010) of the flash unit (MC1850) is charged up to the maximum 300V potential. There is a danger of electric shock by this
high voltage when the flash unit (MC1850 or ST1850) is handled by hand. The electric shock is caused by the charged voltage which is kept
without discharging when the main power of the unit is simply turned off. Therefore, the remaining voltage must be discharged as described
below.
3-1. DISCHARGING THE CAPACITOR USING THE SHORT JIG
3-1-1.

PREPARING THE SHORT JIG

To preparing the short jig. a small clip is attached to each end of a resistor of 1kΩ/1W (1-215-869-11). Wrap insulating tape fully around the
reads of the resistor to prevent electric shock.
3-1-2.

DISCHARGING THE CAPACITOR

Connect the short jig with the capacitor directly.
1 Remove the power supply (Battery or AC power adaptor).
2 Short circuit between TP001 of the flash unit (MC1850) and the GND
(Chassis etc.) with the short jig about 10 seconds.
3-2.

DISCHARGING THE CAPACITOR USING THE REMOTE COMMANDER

3-2-1. DISCHARGING THE CAPACITOR
Note: Perfect discharge can't be done in this method. (Remaining voltage = Approx. 90V)
1 Connect the power supply (Battery or AC power adaptor).
2 Set POWER switch to "CAMERA".
3 Connect the adjustment remote commander to the LANC jack, and set the HOLD switch to the "ADJ" side.
4 Select page: 0, address: 01. and set data: 01.
5 Select page: D, address: F4. set data: 04, and press PAUSE button of the adjustment remote commander.
6 Press FLASH ( ) button and set to the forced flash mode (
7 Select page: 6, address: B3. and set data: 03.
8 Select page: 6, address: B1. and set data: 01.
9 Select page: 6, address: B0. and set data: 01.
→The flash flashes, and data are returned to "00"
0 Repeat step 9, until the flash dose not flash.
After completing repairs/adjustments, perform "PROCESSING AFTER COMPLETING REPAIRS/ADJUSTMENTS"
3-2-2. PROCESSING AFTER COMPLETING REPAIRS/ADJUSTMENTS
1 Connect the power supply (Battery or AC power adaptor).
2 Set POWER switch to "CAMERA".
3 Connect the adjustment remote commander to the LANC jack, and set the HOLD switch to the "ADJ" side.
4 Select page: 0, address: 01. and set data: 01.
5 Select page: D, address: F4. set data: 00, and press PAUSE button of the adjustment remote commander.
6 Select page: 6, address: B3. and set data: 00.
7 Select page: 6, address: B1. and set data: 00.
8 Select page: 0, address: 01. and set data: 00.
Short jig
GND
Chassis
(Sheet metal bending block)
), and press PHOTO button to pop up the flash.
— 8 —
1 k Ω /1 W
Wrap insulating tape
1 k Ω /1 W resistor
(1-215-869-11)
Flash unit
(MC1850) TP001
C2010
Flash unit (MC1850)