Crest_Audio_Century_Series_LM_Owners_Manual电路图.pdf

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1、CENTURYSERIES OWNERSMANUAL LM RadioFans.CN 收音机爱 好者资料库 Congratulations on your purchase of a Century Series console. All of us at Crest Audio in Paramus, New Jersey, USA, support your decision, knowing your console contains the finest combination of design and manufacture in the industry. While your

2、new Century Series console is one of the most feature-packed available, great effort has been put into making it simple to operate. This manual explains the functions of your new console, how they operate and how they relate to each other. If properly cared for, your new console will provide you wit

3、h trouble-free, sonically accurate mixing clear into the next Century and beyond. Please keep the following contact information on hand: Crest Audio Customer Service Dept. 100 Eisenhower Drive Paramus NJ 07652 USA TEL201.909.8700 FAX201.909.8744 Crest Audio Inc. 100 Eisenhower Dr., Paramus NJ 07652

4、USA TEL: 201.909.8700 FAX: 201.909.8744 Printed in USA RadioFans.CN 收音机爱 好者资料库 Feature Overview2 A brief description of the LM design, features and functions. System Connections3 Contains diagrams illustrating conventional system connections. Wiring Conventions5 Contains diagrams indicating how conn

5、ectors for Crest consoles are wired. Power Supply6 A description of the rack-mountable Century Series consoles power supply. Power Connections7 A description of Crest console power connections. Console Cooling7 A brief description of the dual-fan cooling setup. LM-12 Input Module8 Profiles the LM-12

6、 input module. The module is illustrated and described. LM-20 (LM-8+4) Input Module10 Profiles the LM-20 (LM-8+4) input module. The module is illustrated and described. LM-12 Output Module13 Profiles the LM-12 ouput module. The module is illustrated and described. LM 8+4 Output Module15 Profiles the

7、 LM-8+4 output module. The module is illustrated and described. LM-20 Output Module17 Profiles the LM-20 ouput module. The module is illustrated and described. Master Module A19 Profiles the LM A-Master module. The module is illustrated and described. Master Module B21 Profiles the LM B-Master modul

8、e. The module is illustrated and described. Technical InformationAppendix A Includes dimensions, specifications, console access details, user options, console block diagram, and rear panel layout. GlossaryAppendix B The specific details of console operation are described here, alphabetically. Schema

9、ticsAppendix C This appendix lists available LM console this selection applies to all three Pre switches on the module. Each of the twelve send controls can be internally selected to operate in one of three modes: follow its associated Pre switch, always Pre or always Post. Mute system on input chan

10、nels is designed to mute both pre and post fader signals. When muted, PFL circuitry and, Peak and Dynamic Signal Present LED indicators remain fully oper- ational. This is a feature not available on many consoles at any cost. Four scene (A-D) mute system The EQ section includes an EQ IN switch with

11、LED and a 100Hz High Pass filter switch. The EQ itself offers four bands (LF-40-800Hz, LMF-100Hz-2kHz, HMF-400Hz-8kHz, HF- 1.5k-20kHz) that are sweepable, providing full frequency con- trol with generous overlap. The high and low frequency bands are selectable between Peaking and Shelving via intern

12、al jumpers. Each LM output Module (except those in the master mod- ule) has a ten-segment LED array, three-band sweepable EQ, EQ-In switch, variable high-pass filter, polarity reverse, Insert switch, Talkback enable, Dim, Peak while the outer knob controls the center frequency. These center frequenc

13、ies are printed on the chassis around the outer knob. EQ IN Switch Inserts the EQ section into the input channel signal. An associated LED illuminates when the switch is down. PRE Switch 1-4 Toggles mix sends 1-4 between Post and the internally selected Pre state. Mix Sends 1-4 Adjusts signal level

14、sent to output mixes 1-4 PRE Switch 5-8 Toggles mix sends 5-8 between Post and the internally selected Pre state. Mix Sends 5-8 Adjusts signal level sent to output mixes 5-8 PRE Switch 9-12 Toggles mix sends 9-12 between Post and the internally selected Pre state. Mix Sends 9-12 Adjusts signal level

15、 sent to output mixes 9-12 MUTE Switch with LED Mutes the channel and all sends except the insert send. This switch does not affect the PFL switch or the Peak and Signal Present LED indicators, The LED illuminates when the channel is muted either from the local mute switch or the scene mute system.

16、20 10 6 30 60 100 40 150 3 6 800 250 100 400 1 2K 1K 400 1.5 3 6 8K 3 2K 4 10 20K +48V 100 EQ IN HM L M PAD LF GAIN HF PRE PRE PRE 7 8 9 5 2 1 3 46 7 8 9 5 2 0 1 3 46 10 7 8 9 5 2 0 1 3 46 10 7 8 9 5 2 0 1 3 46 10 7 8 9 5 2 0 1 3 4 6 10 7 8 9 5 2 0 1 3 46 10 7 8 9 5 2 0 1 3 4 6 10 7 8 9 5 2 0 1 3 4

17、6 10 7 8 9 5 2 0 1 3 46 10 LINE 5 6 7 8 1 2 3 4 9 MUTE PFL PEAK SIG 0 5 10 30 40 20 PRE PRE 7 8 9 5 2 0 1 3 46 10 7 8 9 5 2 0 1 3 46 10 7 8 9 5 2 0 1 3 46 10 7 8 9 5 2 0 1 3 46 10 7 8 9 5 2 0 1 3 46 10 7 8 9 5 2 0 1 3 46 10 7 8 9 5 2 0 1 3 4 6 10 7 8 9 5 2 0 1 3 46 10 7 8 9 2 0 1 3 10 SCENE MUTE SEL

18、ECT A B C D SAFE 7 8 9 5 2 0 1 3 46 10 5 6 7 8 4 9 10 11 12 BAL INSRT RTN DIR OUT INSRT SND BAL MIC IN BAL MIC OUT PIN 1 LIFT BAL LINE IN LM PAGE9 CENTURYSERIES PFL Switch Samples the channels signal pre-fader and allows for monitor- ing within the master section of the console. This signal is not a

19、ffected by the Mute Switch. When depressed, the signal level can be seen on the output 12 meter, and heard via the mixers headphone or local monitor output. When this PFL Switch is depressed, the channel PEAK LED indicator illuminates at a lower intensity. When used as a status indicator of switch p

20、osi- tion, the Peak LED indicating circuit remains fully operational by illuminating at a much higher intensity than when indicat- ing PFL status. PEAK LED Indicator Illuminates RED when any of the points monitored come with- in 3db of the clipping point. Signal is sampled after the input preamplifi

21、er stage, after the EQ section, and after the fader. This LED also serves as a PFL ON indicator, but at a much lower intensity than when it is used to indicate clipping. SIGNAL PRESENT LED This green LED constantly displays level activity of the input channel by varying in intensity. 100mm Fader Use

22、d for control of all outputs of the channel except those sends selected pre fader. (The Insert Output level is not affect- ed by the fader position.) Scene Mute Assignments Assign the input channel to any of the four scene mute groups. Scene mute combines with the modules local mute button, and actu

23、ates the local mute LED. Scene Mute Safe Switch Disables any selected scene mute assignments. An associated green LED indicates that the channel is in a safe state. Rear Panel Connections Direct Out This 1/4-inch TRS jack carries the direct output signal (post fader while the outer knob controls the

24、 cen- ter frequency. These center frequencies are printed on the chas- sis around the outer knob. EQ IN Switch Inserts the EQ section into the input channel signal. An associat- ed LED illuminates when the switch is down. PRE Switch 1-4 Toggles mix sends 1-4 between Post and the internally selected

25、Pre state. Mix Sends 1-4 Adjusts signal level sent to stereo output mixes 1-4 or mono mixes 1a through 4b. PRE Switch 5-8 Toggles mix sends 5-8 between Post and the internally selected Pre state. Mix Sends 5-8 Adjusts signal level sent to stereo output mixes 5-8 or mono mixes 5a through 8b. PRE Swit

26、ch 9-12 Toggles mix sends 9-12 between Post and the internally selected Pre state. Mix Sends 9-12 Adjusts signal level sent to stereo output mixes 9-12 or mono mixes 9a through 12b. 20 10 6 30 60 100 40 150 3 6 800 250 100 400 1 2K 1K 400 1.5 3 6 8K 3 2K 4 10 20K +48V 100 EQ IN HM LM PAD LF GAIN HF

27、PRE PRE 4 PRE 7 8 9 5 2 1 3 46 7 8 9 5 2 0 1 3 46 10 7 8 9 5 2 0 1 3 46 10 7 8 9 5 2 0 1 3 46 10 7 8 9 5 2 0 1 3 4 6 10 7 8 9 5 2 0 1 3 46 10 7 8 9 5 2 0 1 3 4 6 10 7 8 9 5 2 0 1 3 4 6 10 7 8 9 5 2 0 1 3 46 10 LINE 2 3 1 5 6 7 8 9 MUTE PFL PEAK SIG 0 5 10 30 40 20 PRE 4 PRE 7 8 9 5 2 0 1 3 46 10 7 8

28、 9 5 2 0 1 3 46 10 7 8 9 5 2 0 1 3 46 10 7 8 9 5 2 0 1 3 46 10 7 8 9 5 2 0 1 3 46 10 7 8 9 5 2 0 1 3 46 10 7 8 9 5 2 0 1 3 46 10 7 8 9 5 2 0 1 3 4 6 10 7 8 9 5 2 0 1 3 46 10 7 8 9 2 0 1 3 10 SCENE MUTE SELECT A B C D SAFE 5 6 7 8 9 10 11 12 BAL INSRT RTN DIR OUT INSRT SND BAL MIC IN BAL MIC OUT PIN

29、1 LIFT BAL LINE IN LM PAGE11 CENTURYSERIES MUTE Switch with LED Mutes the channel and all sends. This switch does not affect the PFL switch or the Peak and Signal Present LED indicators, The LED illuminates when the channel is muted either from the local mute switch or the scene mute system. PFL Swi

30、tch Samples the channels signal pre-fader and allows for monitor- ing within the master section of the console. This signal is not affected by the Mute Switch. When depressed, the signal level can be seen on the output 12 meter, and heard via the mixers headphone or local monitor output. When this P

31、FL Switch is depressed, the channel PEAK LED indicator illuminates at a lower intensity. When used as a status indicator of switch posi- tion, the Peak LED indicating circuit remains fully operation by illuminating at a much higher intensity than its use as a PFL status indicator. PEAK LED Indicator

32、 Illuminates RED when any of the points monitored come with- in 3db of the clipping point. Signal is sampled after the input preamplifier stage, after the EQ section, and after the fader. This LED also serves as a PFL ON indicator, but at a much lower intensity than when it is used to indicate clipp

33、ing. SIGNAL PRESENT LED Constantly displays level activity of the input channel by vary- ing in intensity. 100mm Fader Used for control of all outputs of the channel except those Aux output sections selected by switch to a pre fader position. (The Insert Output level is not affected by the fader pos

34、ition.) Scene Mute Assignments Assign the input channel to any of the four scene mute groups. Scene mute combines with the modules local mute button, and actuates the local mute LED. Scene Mute Safe Switch Disables any selected scene mute assignments. An associated green LED indicates the channel is

35、 in a safe state. Rear Panel Connections Direct Out This 1/4-inch TRS jack carries the direct output signal (post fader this selection shall apply to all three pre switches on the input. Each of the send controls shall be internally selectable to oper- ate in one of three modes: follow its associate

36、d pre switch, always pre or always post. The console shall be available in two output configurations: 12 mono or 20 mono. Each output shall have a ten-segment LED array, three-band sweepable EQ, EQ-In switch, variable high-pass filter, polarity reverse, insert switch, talkback enable, dim, peak whil

37、e the dual mono outputs shall have stereo EQ but with separate A/B EQ In switches. The master section shall be contained within mono outputs 11 and 12 and shall contain: a talkback system, scene mute master controls, return master controls and two stereo local monitor controls, connections for headp

38、hones, talkback mics, external oscillators as well as indicators for power, input and output PFL. The power supply shall be housed in a 14 ga. steel chassis that shall occupy two 19 rack spaces. The power supply shall have the ability to be daisy- chained to additional power supplies to provide a fa

39、il-safe operating environment. Connection of two or more power sup- plies shall not require additional interface hardware other than the provided cable.The live monitor console shall be: the Crest Audio Century LM. R FADER AMP GROUP MUTE ? METER RIGHT(B) PFL GROUP PFL DC GROUP PFL R R GROUP MIX AMP

40、GROUP OUT RIGHT(B) M CUE SELECT GROUP SELECT R(B) +HPF THREE BAND EQ EQ IN INSERT ON +10 BAL MIC IN BAL LINE IN INPUT PREAMP GAIN 6 - 60DB FOUR BAND EQ LEVEL FREQ LFL MIDH MIDHFSHELFSHELF HPF LINE 15dB PAD P S P PRE SOURCE SELECT PRE MUTE ? PFL DIRECT OUT +10 SAFEMUTE SCENE SELECT ABCD MUTE INSERT S

41、END +48V EQ IN PEAK SIGNAL PRESENT TO PEAK FADER AMP M M PRE SOURCE AMP EQFDR NOYES INPUT PFL DC INPUT PFL RIBBON CABLES LM INPUT MODULE XFORMER OPTION SIGNAL PRESENT INSERT SEND XFORMER OPTION FADER AMP PEAK GROUP MUTE ? METER PFL GROUP PFL DC GROUP PFL L LM MONO GROUP MODULE GROUP MIX AMP P ROTARY

42、 POTPADLEDAMPSWITCH USER OPTIONFADER M FET MUTE LEGENDS LM GROUP 12 / MASTER B MODULE TB ON +48v TB MIC (TOP PANEL) EXT TB IN PHONES LEVEL PHONES (TOP PANEL) PHONES (FRONT) TB MIC (FRONT) OSC EXT TB IN OSC IN 1KHZ OSC TB LEVEL SCENE MUTE MASTERS A B C D EXT TB OUT EXT TB OUT MIC PRE CREST AUDIO CENT

43、URY LM BLOCK DIAGRAM BAL DRIVER PIN 2 HOT ON ALL XLRS USER OPTIONS IMPLEMENTED WITH REMOVABLE SHUNTS INSERT RETURN BAL MIC OUT 5-8 PRE 1-4 PRE SENDS 1 THRU 4 X 4 9-12 PRE SENDS 9 THRU 12 X 4 LEVEL PAN LM8+4 SHOWN SENDS 5 THRU 8 X 4 LEVEL LEVEL LM20 SHOWN L R A B ALL MODELS INSERT RETURN GROUP OUT M

44、CUE SELECT SELECT - EACH SEND: ALWAYS PRE ALWAYS POST FOLLOW SWITCH E ELVIS PIN 1 LIFT GROUP SELECT SUB INPUTS RETURN INPUTS 1211 (A) 12 (B) +HPF 20 - 400HZ HPF THREE BAND EQ LFMFHF EQ IN INSERT ON +10 DIM TB SIGNAL PRESENT INSERT SEND LEFT(A) XFORMER OPTION L FADER AMP PEAK ? METER LEFT(A) PFL GROU

45、P PFL DC GROUP PFL L(A) LM STEREO GROUP MODULE L(A) GROUP MIX AMP INSERT RETURN LEFT(A) GROUP OUT LEFT(A) M CUE SELECT GROUP SELECT L SUB INPUTS RETURN INPUTS 1 +HPF 20 - 400HZ HPF THREE BAND EQ - LEFT LFMFHF EQ IN INSERT ON +10 DIM TB 2 11(A) 12(B) TO COMMON SIG while the outer knob controls the ce

46、n- ter frequency adjusted by the inner knob. These center frequen- cies are printed on the chassis around the outer knob. This EQ is active only when the EQ In switch is depressed. Equalizer Controls (Output) Controls the equalization of the output mix signal through three bands, via six controls. T

47、he upper knob of each band determines the center frequency (high-1kHz-20kHz, mid- 300Hz-8kHz, low-40Hz, 1kHz), while the lower knob adjusts the amount of boost or cut. External Talkback Input In addition to the mic connections on the console surface, an additional Talkback input connection is provid

48、ed on the rear of the master section. Signal connected to this jack appears on the Talkback bus whenever the External TB Input switch is depressed. External Talkback Output This allows the internal TB signals present on the Talkback bus to be routed to an external destination such as a link to the F

49、OH console. Signal appears on this jack when both the External TB Output switch and talkback master switches are depressed. Fader Used for final output control of an input/output channel except those sends selected pre fader. (Insert Output levels are not affected by the fader position.) Gain Control Adjusts input gain for proper signal level on the input. To set the gain to the best position, make sure there is signal present at the input. Depress the PFL switch on that input channel and make sure that no other PFL switches are depressed. Adjust the gain control u