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Audio/Intercom LF Board RTS MODE
Cameraman intercom microphone PL
1. Apply a 1kHz test signal at -64dBu to the cam. intercom mic. input of Audio/Intercom LF Board (X19A-25).
2. Adjust the cam. mic. preset potentiometer for a 1kHz signal at -10dBu on the microphone output pin of the
board.
Measure at:
Adjust with:
X19B-13
ZR920
Tracker intercom microphone PL
3. Apply a 1kHz test signal at -64dBu to the tracker intercom mic. input of Audio/Intercom LF board (X19A-13).
4. Adjust the tracker mic. sidetone potentiometer for a 1kHz signal at -10dBu on the mic. output pin of the board.
Measure at:
Adjust with:
X19B-13
ZR910
CH1 fork attenuation PROD
5. Apply a 1kHz test signal at -6dBu to the prod intercom input of Audio/Intercom LF board (X19B-28).
6. Adjust the fork attenuation level potentiometer for a 1kHz signal <-22dBu at the output pin of the board.
Measure at:
Adjust with:
X19B-8
ZR990
CH2 fork attenuation ENG
5. Apply a 1kHz test signal at -6dBu to the eng intercom input of Audio/Intercom LF board (X19B-30).
6. Adjust the fork attenuation level potentiometer for a 1kHz signal <-35dBu at the output pin of the board.
Measure at:
Adjust with:
X19B-8
ZR970
22. Switch off power. Return Audio/Intercom LF Board to its position in the camera.
Adjustments
Required result:
-10dBu
Required result:
-10dBu
Required result:
Correct:
<-22dBu
Required result:
Correct:
<-35dBu
Technical Manual LDK 20(S) - Studio Camera
Incorrect:
Incorrect:
4-55
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