Sony CyberShot DSC-P72 Service Manual page 24

DSC-P72
1-1-2. Preparations
1) Connect the equipment for adjustments according to Fig. 6-1-4.
2) 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: 21, and write data: 03.
The above procedure will enable the power (STILL mode) to
be turned on with POWER switch (SY-85 board CN705)
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: 21, and write data: 04.
The above procedure will enable the power (PLAY mode) to be
turned on with POWER switch (SY-85 board CN705)
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: 21, and write data: 00.
3) 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. Discharge this voltage before starting
adjustments in order to protect service engineers from electric shock
during adjustment.
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.
Capacitor
Shorting jig
ST-82 BOARD
(1k Ω / 1w)
Pattern box
Front of the lens
Fig. 6-1-3.
6-4
Abot 30cm
Fig. 6-1-2.