Sony 930, 950, 900 manual 8Internal Switches and Internal, Boards AVP Board Boards DTX Board

7	7-4-8Internal Switches and Internal	7-4-9Internal Switches and Internal
	Boards – AVP Board	Boards – DTX Board

AVP DTX

POWER

INTERCOM

PGM1

MIX

PGM2

PGM1

LEVEL

PGM2

LEVEL

SIDE

TONE

2WIRE CANCEL

PROD

ENG

MIC AMP GAIN

NORM

MIC1

MIN

NORM

MIC2

MIN

1 POWER indicator	POWER
	OPTICAL
2 PGM1/MIX/PGM2 selector	CONDITION
	CCU

3PGM1 LEVEL control

4PGM2 LEVEL control

5 SIDE TONE control CHU

62WIRE CANCEL controls

	CHU
	LOCK
7 MIC AMP GAIN controls	RETURN SET
	HD
	REM
	SD

1POWER indicator

2OPTICAL CONDITION indicators

3CHU LOCK indicator

4RETURN SET switch

aPOWER indicator

The LED is lit when the power voltage inside the board is normal.

bPGM1/MIX/PGM2 (program audio) selector

To select the program audio to be sent to the headset connected to the intercom connector on the front panel:

PGM1: Program audio 1

MIX: Program audio 1 + Program audio 2

PGM2: Program audio 2

cPGM1 LEVEL (program 1 audio level) control To adjust the mixing volume of the PGM1 audio signal at the headset connected to the intercom connector on the front panel

dPGM2 LEVEL (program 2 audio level) control To adjust the mixing volume of the PGM2 audio signal at the headset connected to the intercom connector on the front panel

eSIDE TONE control

To adjust the volume of your voice to be supplied to the headset connected to the intercom connector on the front panel

f2WIRE CANCEL controls

When using the 2-wire intercom system, adjust the controls to minimize the side tone level on the producer line (PROD) and engineer line (ENG).

gMIC AMP GAIN (microphone amplifier gain) controls

These controls permit you to adjust the amplifier gain of the camera so that the proper audio levels can be obtained appropriate to the sensitivities of the microphones (MIC1 and MIC2) connected to the camera.

The adjustment is valid when no connection is made to the MIC REMOTE connector on the rear panel of this unit or, if the connection is made, when the internal setting is selected for the connector (pins 8 and 15 are set to a high level). The adjustment range is from NORM (60 dB) to MIN (20 dB) in 10-dB steps. This switch changes the gain of a microphone amplifier in the camera.

aPOWER indicator

The LED is lit when the power voltage inside the board is normal.

bOPTICAL CONDITION indicators

The corresponding LEDs light to show the condition of optical signal reception at this unit (CCU) and the camera (CHU):

Green: Good

Yellow: Low optical level

Red: Extremely low optical level, or disconnection If communication with the connected camera is not established, all the three CHU green, yellow and red indicators go dark.

cCHU LOCK indicator

The LED is lit when communication with the connected camera is being properly made.

dRETURN SET switch

Select the type of the return video signal to be connected to the RET1, RET2 and RET3 connectors of this unit:

HD: HD-SDI signal (local setting)

REM (remote): Signal selected on the MSU-700A/ 750 Master Setup Unit

SD: SD signal (local setting). Switching between SD SDI and VBS is made with an internal switch.

HDC-900/950/930 Series Product Information Manual Chapter 7 Location and Function of Parts and Controls 99