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Film-Tech

The information contained in this Adobe Acrobat pdf

file is provided at your own risk and good judgment.

These manuals are designed to facilitate the

exchange of information related to cinema

projection and film handling, with no warranties nor

obligations from the authors, for qualified field

service engineers.

If you are not a qualified technician, please make no

adjustments to anything you may read about in these

Adobe manual downloads.

www.film-tech.com

Summary of Contents for CX230

Page 1: ...designed to facilitate the exchange of information related to cinema projection and film handling with no warranties nor obligations from the authors for qualified field service engineers If you are not a qualified technician please make no adjustments to anything you may read about in these Adobe manual downloads www film tech com ...

Page 2: ...PANASTEREO PANASTEREO PANASTEREO PANASTEREO CX230 CINEMA BOOTH MONIT0R OWNER S MANUAL ...

Page 3: ...in analogue to digital converter with digital bargraph meter for auditorium volume indication Fast Mute function Two digit LED digital volume indicator Built in compressor for easier monitoring of highly dynamic SR or digital soundtracks Built in stereo 25watt monitor amplifier All inputs are balanced and isolated for low noise high quality monitoring and zero interaction with the cinema sound sys...

Page 4: ... pressing the same button will cycle through the above three options MONITORING A MIX When the MIX button is pressed the monitor output will be a blend of the front three channels left centre and right The surround channel is not included in the mix This is because the delay that is normally introduced in the cinema processor for the surround channel may cause confusing echo effects The surround a...

Page 5: ...ielded audio cable to connect the outputs from the sound processor to the monitor From Processor inputs Connect the terminal from each sound processor output to the terminal of each corresponding monitor From Processor input Connect the terminal of each processor output to the terminal of each corresponding monitor from processor input Connect the cable shield to the E terminal of each monitor fro...

Page 6: ...in the STEREO position OUT CONNECTING THE SERIAL INTERFACE TO A COMPUTER AUTOMATION SYSTEM Use 4 core shielded computer or audio cable The CX230 is configured as a DCE device Data Circuit Terminating Equipment i e pin 2 transmit data out and pin 3 receive data in Connect one conductor to pin 2 one to pin 3 and one conductor to pin 5 ground The fourth conductor can be left unused or also connected ...

Page 7: ...ium 3 Select the pink noise generator to CENTRE 4 Turn off the Sub Bass amplifier 5 Check the SPL reading on the RTA It should be 85dB If not check the B Chain alignment of the sound processor 6 Select the SOURCE switch to AMPS and select CENTRE 7 Adjust the AMPLIFIERS CL trimpot so that the CX230 sound level meter reads 85db 8 Select the SOURCE switch to PROC 9 Adjust the Processor CL trimpot so ...

Page 8: ...HT 24 Check the SPL reading on the RTA It should be 85dB If not check the B Chain alignment of the sound processor 25 Select the SOURCE switch to AMPS and select RIGHT 26 Adjust the AMPLIFIERS RL trimpot so that the CX230 sound level meter reads 85db 27 Select the SOURCE switch to PROC 28 Adjust the Processor RL trimpot so that the CX230 sound level meter reads 85db 29 Select the pink noise genera...

Page 9: ...PL reading on the RTA It should be 85dB If not check the B Chain alignment of the sound processor 37 Select the SOURCE switch to AMPS and select RIGHT SURROUND 38 Adjust the AMPLIFIERS RS trimpot so that the CX230 sound level meter reads 85db 39 Select the SOURCE switch to PROC 40 Adjust the Processor RS trimpot so that the CX230 sound level meter reads 85db The CX230 alignment is now complete ...

Page 10: ...8 Adjust the AMPLIFIERS CH trimpot so that the Cx230 sound level meter reads the same as the SPL reading on the RTA 9 Select the SOURCE switch to PROC 10 Adjust the PROCESSOR CH trimpot so that the CX230 sound level meter reads the same as the SPL reading on the RTA 11 Turn off the Centre channel high frequency amplifier and turn on the Centre channel low frequency amplifier Note the SPL reading o...

Page 11: ... AMPS and select LEFT HF by pressing the LEFT pushbutton twice Only the HF LED above the LEFT pushbutton should be illuminated 28 Adjust the AMPLIFIERS LH trimpot so that the CX230 sound level meter reads the same as the SPL reading on the RTA 29 Select the SOURCE switch to PROC 30 Adjust the PROCESSOR LH trimpot so that the CX230 sound level meter reads the same as the SPL reading on the RTA 31 T...

Page 12: ...rn on the Right channel low frequency amplifier Note the SPL reading on the RTA 45 Select the SOURCE switch to AMPS and select RIGHT LF by pressing the RIGHT pushbutton once Only the LF LED above the RIGHT pushbutton should be illuminated 46 Adjust the AMPLIFIERS RL trimpot so that the CX230 sound level meter reads the same as the SPL reading on the RTA 47 Select the SOURCE switch to PROC 48 Adjus...

Page 13: ...PL reading on the RTA It should be 85dB If not check the B Chain alignment of the sound processor 49 Select the SOURCE switch to AMPS and select RIGHT SURROUND 50 Adjust the AMPLIFIERS RS trimpot so that the CX230 sound level meter reads 85db 51 Select the SOURCE switch to PROC 52 Adjust the Processor RS trimpot so that the CX230 sound level meter reads 85db The CX230 alignment is now complete ...

Page 14: ...ter ASCII string starting with a colon followed by an eight bit value When the CX230 detects a command start character a colon a timer is started and if the rest of the command including the end characters CR LF is not received within 200mS then the serial port is ignored until another valid start character is seen If the command is unknown then it is ignored The seven characters in the command st...

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