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Operating Instructions
Introduction
Power & Data input
Hirose lens connectors
Camera connections
Camera PSU
Slip Ring Circuits
Mounting & Balancing
Radio Data Control
Pan Tilt Zoom & Focus
Preset Positions
Status Display
HDSDI Output
Specifications
Pinouts
The U4_J is a remote head designd for medium sized cameras utilizing LANC protocols. It is
optimized for the JVC range of cameras and has additional LANC commands specitic to JVC
cameras.
U4_J
Contents
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Power & Data Input
Inputs to the head are power and data. These are both input via the XLR4 input socket on the
base.
Power;
12 -18 volts, (24v max. For short periods)
<1A for the Head only, up to 3.5A for the head & camera.
IMPORTANT
-
Voltages greater than 5v on pins 2 or 3 will damage the data receivers. e.g..
phantom power. Take care when working with audio and intercom systems etc. not to plug the
wrong cable into the head.
Camera Power & Data Connectors
4pin XLR Supplies regulated 12v (3A) power to the camera. This is a 12v regulated supply for the
camera.
Video Circuits
The BNC connectors are simply connected together and provide a convenient way of acbling the
camera to the rotating base.
LANC jack socket
This is connected to the camera with the suppied cable.
Tilt Clutch Adjustment
The tilt clutch is in 2 parts; The larger diameter knob is the clutch and the smaller diameter knob is
the clutch lock. To loosen the clutch, first loosen the lock then loosen the clutch. The main reason
for loosening the clutch is to enable adjustment of the camera balance.
Do not overtighten the clutch. Its purpose is to prevent damage to the mechanics should the
camera be moved by an external force or be prevented from moving by an obstruction.
Fitting and balancing the Camera
It is important the camera is balanced in 2 planes. Fore/Aft and Up/Down.
Fit the camera slide plate using the 3/8" bolt through the centre of the saddle. Attach the camera
and all the cables required. Now slacken the tilt clutch and slide the camera so that it balances
perfectly front and back.
Now the 4 bolts securing the saddle to the drop arms are loosened and the saddle is adjusted for
perfect up and down balance. The camera should now stay in position wherever it is tilted and not
return to level.
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