Dolby Laboratories CP65 manual Appendix D Backplane Connections List, Terminal Block TB3

Page 81

D.1

APPENDIX D

BACKPLANE CONNECTIONS LIST

CP65 Backplane Connections
Terminal Block TB1			Terminal Block TB2
1	Left non-sync i/p		1	[automation select] projector changeover
2	Right non sync i/p		2	ground
3	ground		3	Cat. No. 122 connection “C”
4	S0	[automation select] fmt 01 Mono	4	Cat. No. 122 connection “E”
5	S1	[automation select] fmt 04 Dolby A-type	5	Cat. No. 122 connection “B”
6	S2	[automation select] fmt 05 Dolby SR [optical]	6	Cat. No. 122 connection “A”
7	S3	[automation select] fmt 60 non-sync via matrix	7	Cat. No. 122 connection “D”
8	S4	[automation select] fmt 10 Dolby Stereo Digital	8	chassis
9	S5	[automation select] fmt 42 mag aux with NR	9	ground
10	S6	[automation select] fmt 60 non-sync standard	10	ground
11	S7	[automation select] fmt 22 mag aux without NR	11	left pre-amp o/p [Lt]
12	[automation select] “remote/local” fader		12	right pre-amp o/p [Rt]

13[automation select] mute

14ground

Terminal Block TB3		Terminal Block TB4
1	Hearing Impaired o/p	1	Right i/p [format 22]
2	ground	2	Surround i/p [format 22]
3	Left o/p to power amp	3	Le i/p [format 42]
4	Center o/p to power amp	4	Re i/p [format 42]
5	Right o/p to power amp	5	ground
6	ground	6	Left i/p [format 10]
7	[Left] Surround o/p to power amp	7	Center i/p [format 10]
8	Right Surround o/p to power amp	8	Right i/p [format 10]
9	Sub woofer o/p to power amp	9	Ls i/p [format 10]
10	ground	10	Rs i/p [format 10]
11	Left i/p [format 22]	11	Sub woofer i/p [format 10]
12	Centre i/p [format 22]	12	ground
Terminal Block TB5		Terminal Block TB6
1	ground	1	Left i/p [format 42]
2	projector 1 optical i/p left [ - ]	2	Center i/p [format 42]
3	projector 1 optical i/p left [+]	3	Right i/p [format 42]
4	ground	4	Surround i/p [format 42]
5	projector 1 optical i/p right [ - ]	5	ground
6	projector 1 optical i/p right [+]	6	no connection

Terminal Block TB7

1ground

2projector 2 optical i/p left [ - ]

3 projector 2 optical i/p left [+]

4 ground

5 projector 2 optical i/p right [ - ]

6 projector 2 optical i/p right [+]

Image 81

Contents Model CP65 Cinema Processor Dolby Laboratories Inc Headquarters Table of Contents Section Reference Block Diagrams Introduction Page Section Equipment Required Jiffy Test Film Cat. No 2 Listen . . . Film Cat. No Smpte Buzz Track Stereo Optical Surround Level Cat. NoSection Initial SET-UP and Installation Voltage Acceptable Setting Voltage Range Fuse Type Next, check the jumpers in the following locations Cat. No , B-Chain Card Cat. No , Power Supply ModuleJ2 NON-SYNC Cat. No , Control Logic CardStandard CP65 or CP65A CP65 BackplaneCP65-300 High Low Subwoofer subwoofer Output output These Modules are Necessary for Bypass Operation Two-channel Noise Slot Card Function Cat. NoReduction Module Channel DecoderContains a semi-regulated power supply with International Voltage Setting Fuse TypeIEC Notices Room lighting dimmer controls SCR-TYPE HUM ProblemsPage Aligning the B-Chain Section AN Overview of the Alignment ProcedurePage Page Section Chain Alignment Action Indication Preliminary ProceduresLamp Voltage Optical Preamplifier Adjustments Chain Alignment Procedures Optical Preamplifier Adjustments 222 CAT. no Test Film Oscilloscope Traces Repeat Repeat 1 → CAT noMagnetic Preamplifier Adjustments Magnetic Alignment 100mV Section Chain Alignment Bypass Setting Room EqualizationLoudspeakers and Crossovers General AmplifiersOff Chain Alignment ProceduresAction RepeatChain Alignment Procedures Setting Room Equalization Do not adjust Paul 14 → 21 R 14 → Setting Room Equalization b. Adjusting L,C,R Gain79 dBC Setting Mono GainChain Alignment Procedures Subwoofer Alignment Cat. No 85 dBC 90 dBCStep No FromSelect format 04 Dolby Stereo A-Type 441 Same ASSurround Equalization Alignment Cat. No Cat. No 441 Surround Equalization Alignment Cat. No NotesDesired 88 dBC Bypass Adjustment of Surround Delay Thumbwheel SwitchMsec Setting Xx dBC Chain Alignment Procedures Adjustment of Bypass GainXx dBC -3 dB Yy dBC FromPress the format 60 non sync switch Adjustment of Non-sync GainAuto Freq Repeat page 5-20 Step Adjustment of Mono Gain and Equalization NotesPress the format 04 Dolby Stereo A-type switch Chain Alignment Procedures Final ChecksSection Reference Diagrams Cat. No Dual Noise Reduction Module Inputs Cat. No Optical Bass Extension and Surround Equalizer Card Cat. No B-Chain Facilities Card Cat. No Power Supply Card Cat. No Transformer Module Inputs Cat. No Control Logic Card Cat. No +24V +15V 15V +12B+15M Appendix a Checking Phasing of Speakers Appendix B Effect of Changes in Slit Height on Slit Losses Appendix C CP65M Mono Instructions OperationCat. No a Circuit Description Schematic Cat. No a Terminal Block TB3 Appendix D Backplane Connections ListConnector J18