Nikon D90 - Digital Camera SLR User Manual - Page 12

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8. Operation of HugyCheck system

The HugyCheck system is a pre-dive check system that allows the underwater

photographer to check prior to the dive whether the housing has been closed

properly and whether the o-rings are in good condition. An electrical vacuum

pump will create a slight under pressure inside the housing which can be

monitored by means of an LED pressure indicator on the camera hot shoe.

Components:

circuit board

hot shoe with LED pressure indicator

electrical vacuum pump - one way valve

moisture sensor

Hugyfot Housing for

J2 connecter

J1 connecter

SW1 switchboard

J3 connecter

(strobe socket 1)

J4 connecter

(strobe socket 2)

J8 Power socket

(3 Volt only)

Buzzer

J5 connecter

(TTL converter)

J6 connecter

(TTL converter)

10. Connecter for

leakage alarm.

Nikon D90

User manual