Toshiba PDR-M25 Service Manual page 5

1-8 AF & AE
The captured images are processed by shifting the iris and focus position inside DSP(U8)to obtain the best iris & focus position.
Only when using a half-shutter function, AE&AF operation is carried out.
1-9 Zoom
Zoom key -> detection of potentiometer alignment by a sub-microprocessor -> Raptor PWM output -> Control by a motor. The fine
adjustment of focus is carried out by every position at Zoom.
1-10 Card Access
The data stored on a SDRAM(logic board – U5) is compressed inside DSP(U8) and recorded in a SM card . The Gate (logic board -
U17,U18) is inserted to protect for a damage by insertion /extraction of a card. The gate is forcedly opened /closed by a card
detection signal (logic board , J8 pin12)of socket the presence or absence of the card is detected according to the detection of the door
opened/closed signal .
1-11 Strobe Control
Strobe charge is controlled by a sub microprocessor (switch board, U302) and the light emission is controlled by DSP (U8)
corresponding to the CCD output amount. The sub microprocessor detects a charge voltage by turning STROBE_V(switch board ,
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