Technicolor - Thomson LDK 20(S) Cameraman intercom microphone PL, Tracker intercom microphone

Audio/Intercom LF Board

Cameraman intercom microphone

12.Apply a 1kHz test signal at -64dBu to the cam. intercom mic. input of Audio/Intercom LF Board (X19A-25).

13.Adjust the cam. mic. preset potentiometer for a 1kHz signal at -6dBu on the microphone output pin of the board.

Measure at:

X19B-10

Adjust with:

ZR310

Required result:

-6dBu

Cameraman intercom microphone PL

14. Adjust the side tone potentiometer for a 1kHz signal at 0dBu on the telephone output pin.

Measure at:

X19B-13

Adjust with:

ZR920

Required result:

0dBu

Limiter level camera microphone

15.Apply a 1kHz test signal at -52dBu to the cam. intercom mic. input of Audio/Intercom LF Board (X19A-25).

16.Adjust the cam. mic. limiter level potentiometer for a 1kHz signal at 0dB the microphone output pin of the board.

Measure at:

X19B-10

Adjust with:

ZR360

Required result:

0dBu

Cameraman intercom microphone TRS

17.Apply a 1kHz test signal at -64dBu to the cam. intercom mic. input of Audio/Intercom LF Board (X19A-29).

18.Adjust the cam. mic. preset potentiometer for a 1kHz signal at -6dBu on the microphone output pin of the board.

Measure at:

X19B-10

Adjust with:

ZR330

Required result:

-6dBu

Tracker intercom microphone

19.Apply a 1kHz test signal at -64dBu to the tracker intercom mic. input of Audio/Intercom LF board (X19A-13).

20.Adjust the tracker mic. preset potentiometer for a 1kHz signal at -6dBu on the mic. output pin of the board.

Measure at:

X19B-8

Adjust with:

ZR410

Required result:

-6dBu

Tracker intercom microphone PL

21. Adjust the tracker preset potentiometer for a 1kHz signal at 0dBu on the telephone cam. output pin.

Measure at:

X19B-16

Adjust with:

ZR820

Required result:

0dBu

Tracker intercom microphone PL (sidetone)

22. Adjust the tracker mic. sidetone level potentiometer for a 1kHz signal at 0dBu on the output pin of the board.

Measure at:

X19B-13

Adjust with:

ZR910

Required result:

0dBu

Limiter level tracker microphone

23.Apply a 1kHz test signal at -52dBu to the tracker intercom mic. input of Audio/Intercom LF board (X19A-13).

24.Adjust the tracker mic. limiter level potentiometer for a 1kHz signal at 0dB on the microphone output pin of the board.

Measure at:

X19B-8

Adjust with:

ZR460

Required result:

0dBu

Correct:Incorrect:

25. Switch off power. Return Audio/Intercom LF Board to its position in the camera.

Adjustments Technical Manual LDK 20(S) - Studio Camera 4-53