Technicolor - Thomson CCU DT 500 Intercom, Channel Control Unit, Type of earphone

132	Chapter 2 - Installation
	Audio

In the Channel Control Unit

The «MICRO AMBIENCE» sound output level can be adjusted on the «SOUND/AUX» card over the range -6 dB to + 18 dB. This adjustment is made using selector switch S500 «0 dB + 12 dB» and «LEVEL» potentiometer R500.

R500

S500

SOUND / AUX PCB

2.3.2 - Intercom

On the camera rear strip panel

Cameraman’s headset microphone

Microphone type

The microphone used must be an electrostatic microphone having a sensitivity of - 40 dB.

The camera provides the microphone with a supply voltage of + 9 Volts from the headset-microphone connector.

Type of earphone

The earphones used must be electrodynamic. The maximum level applied to each earphone is approximately 8 V peak-to-peak/300 Ohms.

In the Channel Control Unit

The «INTERCOM» link of the sound engineer’s control room may be of the 4-wire or RTS/CLEARCOM type.

4-wire link

•Selector switches S560 and S50 on the «SOUND/AUX» board of the Channel Control Unit should be set to 4W.

•The «INTERCOM» sound output level can be adjusted on the «SOUND/AUX» board of the Channel Control Unit over the range - 6 dB to + 18 dB. The adjustment is performed using «0 dB + 12 dB» selector switch S540 and «LEVEL» potentiometer R540.

•The «INTERCOM» sound input level can be adjusted on the «SOUND / AUX» board of the Channel Control Unit over the range - 6 dB to + 18 dB. The adjustment is made using the «0 dB + 12 dB» selector switch S581 and the «LEVEL» potentiometer R580.

THOMSON TTV1707 / CCU DT500	B1707M00LD
User manual	September 2000