Preparations; Discharging Of The Flashlight Power Supply - Sony DSC-F828 Service Manual

DSC-F828
1-1-2.

Preparations

1) Connect the equipment for adjustments according to Fig. 6-1-4.
2) Set the MS/CF switch to MS (Memory stick).
3) Start up the application for adjustment (SEUS).
Note1: Setting the "Forced Power ON Mode (Forced STILL Mode)"
1) Select page: 00, address: 01, and set data: 01.
2) Select page: 2F, address: 23, and write data: 11.
3) Save the data.
4) Wait for 2 sec.
The above procedure will enable the power (STILL mode) to
be turned on with POWER switch (Control switch block (TOP))
disconnected. After completing adjustments, be sure to exit the
"Forced Power ON Mode".
Note2: Setting the "Forced Power ON Mode (Forced PLAY Mode)"
1) Select page: 00, address: 01, and set data: 01.
2) Select page: 2F, address: 23, and write data: 12.
3) Save the data.
4) Wait for 2 sec.
The above procedure will enable the power (PALY mode) to be
turned on with POWER switch (Control switch block (TOP))
disconnected. After completing adjustments, be sure to exit the
"Forced Power ON Mode".
Note3: Exiting the "Forced Power ON Mode"
1) Select page: 00, address: 01, and set data: 01.
2) Select page: 2F, address: 23, and write data: 80.
3) Save the data.
4) Wait for 2 sec.
5) Select page: 00, 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 200V to 300V voltage. When disassembling the unit, discharge
this voltage in order to protect service engineers from electric shock.
Discharge procedure
1. Remove the power supply (AC power adaptor or battery).
2. Fabricate the discharging jig as shown in Fig. 6-1-3. locally by
yourself. Connect the discharging jig to the positive (+) and
negative (–) terminal of the flash voltage charge capacitor. Allow
ten seconds to discharge the voltage.
Short jig
(1k Ω /1W)
0 4
- 2
D D
DD-204 board
Fig. 6-1-3.
Pattern box
Front of the lens
6-4
About 20cm
Fig. 6-1-2.