Studer-928-lim-sm 维修电路原理图.pdf

Studer 928Limiter/Compressor/Noise Gate Module Product InformationRadioFans.CN 收音机爱 好者资料库GeneralThe 4-channel Limiter/Compressor/Noise Gate module (1.913.325.xx) canbe installed in the meter panel of the Studer 928 analog mixing consoles.The module function is in line with the four corresponding input channelsbelow it.Main ApplicationsThe Limiter/Compressor section allows compressing the dynamic rangeand limiting the maximum level by an adjustable limiter thresholdvalue. Attack and decay times are also adjustable; the decay character-Operating ElementsGRMGain reduction meter, indicates the gain reduction in the Limiter/Com-pressor/Noise Gate signal path in dB.Noise Gate SectionNGKey to activate the Noise Gate function.THRESH.Noise Gate threshold, adjustable from 0 to 50 dB.RANGENoise Gate gain reduction, adjustable from 0 to 50 dB.RELEASE (s)Time between the undershooting of the Noise Gate threshold and the startof the Noise Gate action. Adjustable from 0.2 to 5 s.Limiter/Compressor SectionL / CKey to activate the Limiter/Compressor function.LINK ?Control voltage coupling with the adjacent Limiter/Compressor/Noise Gateunit at the right-hand side. The higher voltage of either one controls bothunits.Main application of this feature is processing a stereo signal connected totwo mono channels (e.g. two microphones). With the control voltages ofthese two channels linked, the localization of sound sources within thestereo image remains stable.THRESH.Compressor threshold, adjustable from 20 to +10 dB.RATIOCompression ratio, adjustable from 1:1 (no compression effect) to 20:1(limiting effect).ATTACK (ms)Compressor attack time, adjustable from 0.2 to 5 ms.RELEASE (s)Compressor release time. The scale refers to a static 6 dB gain reductionand the LIM setting of the RATIO control. The actual release time isprogram dependent and optimized, thus differences to the control positionmay occur.istic is additionally determined by the program content to avoidunwanted pumping effects.The Noise Gate section reduces the residual noise of a connectedsource during program intermissions by reducing the gain of thechannel, if the source signal is below a preset value. For instance, indrum and bass recordings a noise gate is used to produce a drysound with high presence character.The Limiter/Compressor/Noise Gate module controls the VCAs in the inputchannels, resulting in a high S/N ratio with minimum distortion.Studer 928 Limiter/Compressor/Noise Gate ModuleSpecifications:Audio:No audio signal is processed within the Limiter/Compressor/NoiseGate module, but only the control signal for the input channels VCAs.In this way, the distortion, S/N, and frequency response performanceremains the same as without the Limiter/Compressor/Noise Gate module.Current Consumption:Maximum current consumption of the Limiter/Compressor/Noise Gate Mod-ule per channel is: +15 V: 70 mA / 15 V: 60 mA / 5 V: 100 mARadioFans.CN 收音机爱 好者资料库01202t sUout dBu01202t sUout dBu0.10.30.502t sUout dBu0.20.40.60123450+2t msUout dBu4 ms0123450+2t msUout dBu2 ms0123450+2t msUout dBu0.6 msStuder 928 Limiter/Compressor/Noise Gate ModuleNoise Gate Release TimeAbove: Four different noise gate RELEASE time settings (1: min.; 2: 1 s; 3: 3 s; 4: max.) ata THRESH. setting of 10 dB and a Noise Gate gain reduction RANGE setting of 20 dB.Right: Four different compressor THRES. settings (1: 20 dBu; 2: 10 dBu; 3: 0 dBu; 4:+10 dBu) , with compression RATIO settings of 1 (no compression), 2 (moderate compression)and LIM (maximum compression, limiter effect).01234567301020t sUout dBu(2)(3)(4)(1)(1)(2)(3)(4)(1)12222LIMLIMLIMLIM+10+20Uin dBuUout dBu2010+1010200Limiter/Compressor: Threshold RangeLimiter/Compressor: Attack/Release TimeLimiter/Compressor characteristics at three different ATTACK and RELEASE time settings; the exciting signal is a level change from 0 dBu to +10 dBu for 100 ms, and back to 0 dBu. Subject to change. Studer is a registered trademark of Studer Professional Audio AG. Printed in Switzerland. Copyright by Studer Professional Audio AGStuder 928 Limiter/Compressor/Noise Gate ModuleBlock Diagram Limiter/Compressor/Noise Gate Module with Mono Input Unit (only one channel shown)1.913.325Date printed: 20.06.02 4-Ch Dynamics Module4-Channel Dynamics Module 1.913.3251.913.3254-Ch Dynamics Module Date printed: 20.06.02Dynamics Module 1.913.326.001.913.325Date printed: 20.06.02 4-Ch Dynamics ModuleDynamics Module 1.913.326.00S1 with MP9S3 with MP11S2 with MP10Part No.Qty.Type/Val.DescriptionPos.Idx.Part No.Qty.Type/Val. DescriptionPos.Idx.DYNAMICS MODULE 1.913.326.00 ( 0)1.913.325Page: 1 of 2C 159.60.3337100nCER 50V, 10%, X7R, 080501 pceC 259.60.3337100nCER 50V, 10%, X7R, 080501 pceC 359.68.01271u0EL 50V, 4.0*5.701 pceC 459.60.3441220nCER 50V, 10%, X7R, 120601 pceC 559.68.01271u0EL 50V, 4.0*5.701 pceC 659.60.3337100nCER 50V, 10%, X7R, 080501 pceC 759.60.3337100nCER 50V, 10%, X7R, 080501 pceC 859.60.3337100nCER 50V, 10%, X7R, 080501 pceC 959.60.333347nCER 50V, 10%, X7R, 080501 pceC 1059.60.2249100pCER 50V, 5%, C0G, 060301 pceC 1159.68.0115100uEL 35V, 8.0*10.701 pceC 1259.60.3337100nCER 50V, 10%, X7R, 080501 pceC 1359.60.3337100nCER 50V, 10%, X7R, 080501 pceC 1459.60.2249100pCER 50V, 5%, C0G, 060301 pceC 15not used100nCER 50V, 10%, X7R, 080501 pceC 16not used100nCER 50V, 10%, X7R, 080501 pceC 1759.60.3337100nCER 50V, 10%, X7R, 080501 pceC 1859.60.3337100nCER 50V, 10%, X7R, 080501 pceC 1959.60.2249100pCER 50V, 5%, C0G, 060301 pceC 2059.60.3337100nCER 50V, 10%, X7R, 080501 pceC 2159.60.3337100nCER 50V, 10%, X7R, 080501 pceC 22not used100nCER 50V, 10%, X7R, 080501 pceC 23not used100nCER 50V, 10%, X7R, 080501 pceC 24not used22uEL 16V, 5.0*5.701 pceC 2559.68.006722uEL 16V, 5.0*5.701 pceC 2659.60.2249100pCER 50V, 5%, C0G, 060301 pceC 2759.60.3337100nCER 50V, 10%, X7R, 080501 pceC 2859.68.0115100uEL 35V, 8.0*10.701 pceC 2959.60.3337100nCER 50V, 10%, X7R, 080501 pceC 3059.60.3337100nCER 50V, 10%, X7R, 080501 pceC 31not used100nCER 50V, 10%, X7R, 080501 pceC 32not used100nCER 50V, 10%, X7R, 080501 pceC 33not used100nCER 50V, 10%, X7R, 080501 pceC 34not used100nCER 50V, 10%, X7R, 080501 pceC 3559.60.3337100nCER 50V, 10%, X7R, 080501 pceC 3659.60.3337100nCER 50V, 10%, X7R, 080501 pceC 37not used100nCER 50V, 10%, X7R, 080501 pceC 38not used100nCER 50V, 10%, X7R, 080501 pceC 3959.60.3337100nCER 50V, 10%, X7R, 080501 pceC 4059.60.3337100nCER 50V, 10%, X7R, 080501 pceC 4159.60.3337100nCER 50V, 10%, X7R, 080501 pceC 4259.68.0115100uEL 35V, 8.0*10.701 pceC 4359.60.223733pCER 50V, 5%, C0G, 060301 pceC 44not used22uEL 16V, 5.0*5.701 pceC 4559.68.006722uEL 16V, 5.0*5.701 pceC 46not used33pCER 50V, 5%, C0G, 060301 pceC 47not used33pCER 50V, 5%, C0G, 060301 pceC 48not used22uEL 16V, 5.0*5.701 pceC 4959.68.006722uEL 16V, 5.0*5.701 pceC 5059.60.223733pCER 50V, 5%, C0G, 060301 pceC 5159.60.223733pCER 50V, 5%, C0G, 060301 pceC 52not used22uEL 16V, 5.0*5.701 pceC 53not used22uEL 16V, 5.0*5.701 pceC 5459.68.006722uEL 16V, 5.0*5.701 pceC 5559.68.006722uEL 16V, 5.0*5.701 pceC 5659.60.3337100nCER 50V, 10%, X7R, 080501 pceC 5759.68.0115100uEL 35V, 8.0*10.701 pceC 5859.60.3337100nCER 50V, 10%, X7R, 080501 pceC 5959.60.3337100nCER 50V, 10%, X7R, 080501 pceC 6059.60.223733pCER 50V, 5%, C0G, 060301 pceC 6159.60.3337100nCER 50V, 10%, X7R, 080501 pceD 150.60.80014448200mA 75V 4ns SOD 8001 pceD 250.60.80014448200mA 75V 4ns SOD 8001 pceD 350.60.80014448200mA 75V 4ns SOD 8001 pceD 4not usedBAS85200mA 30V Schottky SOD 8001 pceD 550.60.80014448200mA 75V 4ns SOD 8001 pceD 650.60.80014448200mA 75V 4ns SOD 8001 pceD 750.60.80014448200mA 75V 4ns SOD 8001 pceD 850.60.80014448200mA 75V 4ns SOD 8001 pceD 950.60.80014448200mA 75V 4ns SOD 8001 pceD 1050.60.80014448200mA 75V 4ns SOD 8001 pceD 1150.60.80014448200mA 75V 4ns SOD 8001 pceD 1250.60.80014448200mA 75V 4ns SOD 8001 pceD 1350.60.80014448200mA 75V 4ns SOD 8001 pceD 1450.60.8101BAS85200mA 30V Schottky SOD 8001 pceD 15not used4448200mA 75V 4ns SOD 8001 pceD 16not used4448200mA 75V 4ns SOD 8001 pceD 1750.60.80014448200mA 75V 4ns SOD 8001 pceD 1850.60.80014448200mA 75V 4ns SOD 8001 pceD 19not used4448200mA 75V 4ns SOD 8001 pceD 20not used4448200mA 75V 4ns SOD 8001 pceD 2150.60.80014448200mA 75V 4ns SOD 8001 pceD 2250.60.80014448200mA 75V 4ns SOD 8001 pceD 2350.60.80014448200mA 75V 4ns SOD 8001 pceDL 150.04.2205L934YTLED 3mm yellow01 pceDL 250.04.2205L934YTLED 3mm yellow01 pceDL 350.04.2205L934YTLED 3mm yellow01 pceDL 4 50.04.2150 MV57164 10*LED-Bargraf rot diffus01 pceDV 150.60.90032V75%, 0.2W, SOT 2301 pceDV 250.60.90115V65%, 0.2W, SOT 2301 pceDV 3not used10V5%, 0.2W, SOT 2301 pceDV 450.60.901710V5%, 0.2W, SOT 2301 pceDV 5not used10V5%, 0.2W, SOT 2301 pceDV 650.60.901710V5%, 0.2W, SOT 2301 pceIC 150.11.0119LM3914IC LM 3914 N,01 pceIC 250.61.0207LF353Dual Op-Amp JFET SO 801 pceIC 350.61.0207LF353Dual Op-Amp JFET SO 801 pceIC 450.61.0207LF353Dual Op-Amp JFET SO 801 pceIC 550.61.0201TL062Dual FET Op-Amp01 pceIC 650.61.0207LF353Dual Op-Amp JFET SO 801 pceIC 750.10.0108LM317L Series regulator 100mA .+37V01 pceIC 850.61.0201TL062Dual FET Op-Amp01 pceIC 9not usedLF353Dual Op-Amp JFET SO 801 pceIC 1050.61.0207LF353Dual Op-Amp JFET SO 801 pceIC 11not usedLF353Dual Op-Amp JFET SO 801 pceIC 1250.61.0207LF353Dual Op-Amp JFET SO 801 pceIC 1350.61.0207LF353Dual Op-Amp JFET SO 801 pceIC 1450.61.0201TL062Dual FET Op-Amp01 pceJ 1not usedJumper0.63*0.63mm, Au01 pceJ 254.01.0021Jumper0.63*0.63mm, Au01 pceMP 11.913.326.11DYNAMIC MODUL PCB01 pceMP 21.913.326.04STUDER-NR.-ETIKETTE 10 * 2001 pceMP 343.01.0108LabelESE-WARNSCHILD01 pceMP 41.928.220.099mm ALPS POT BRACKET WITH PIP01 pceMP 51.928.220.099mm ALPS POT BRACKET WITH PIP01 pceMP 61.928.220.099mm ALPS POT BRACKET WITH PIP01 pceMP 71.928.220.099mm ALPS POT BRACKET WITH PIP01 pceMP 81.928.220.099mm ALPS POT BRACKET WITH PIP01 pceMP 91.928.201.51PUSH BOTTON NG01 pceMP 101.928.201.52PUSH BOTTON L/C01 pceMP 111.928.201.53PUSH BOTTON LINK01 pceP 154.11.01362*3pPin 0.63*0.63, RM2.5401 pceP 254.14.21006p1/20 Au, gerade, Verrieg01 pceP 354.14.21006p1/20 Au, gerade, Verrieg01 pceP 4not used10p1/20 Au, gerade, Verrieg01 pceP 554.14.210110p1/20 Au, gerade, Verrieg01 pceQ 150.60.1002BC860CPNP 45V 100mA SOT 2301 pceQ 250.60.1002BC860CPNP 45V 100mA SOT 2301 pceQ 350.60.1002BC860CPNP 45V 100mA SOT 2301 pceQ 450.60.1002BC860CPNP 45V 100mA SOT 2301 pceQ 550.60.1002BC860CPNP 45V 100mA SOT 2301 pceQ 650.60.1002BC860CPNP 45V 100mA SOT 2301 pceR 157.60.13323k3MF, 1%, 0204, E2401 pceR 257.60.147347kMF, 1%, 0204, E2401 pceR 357.60.15625k6MF, 1%, 0204, E2401 pceR 457.60.156356kMF, 1%, 0204, E2401 pceR 557.60.1824820kMF, 1%, 0204, E2401 pceR 657.60.1471470RMF, 1%, 0204, E2401 pceR 757.60.122322kMF, 1%, 0204, E2401 pceR 857.60.122322kMF, 1%, 0204, E2401 pceR 957.60.133333kMF, 1%, 0204, E2401 pceR 1057.60.147347kMF, 1%, 0204, E2401 pceR 1157.60.1821820RMF, 1%, 0204, E2401 pceR 1257.60.1104100kMF, 1%, 0204, E2401 pceR 1357.60.11521k5MF, 1%, 0204, E2401 pceR 1457.60.139039RMF, 1%, 0204, E2401 pceR 1557.60.11821k8MF, 1%, 0204, E2401 pceR 1657.60.1334330kMF, 1%, 0204, E2401 pceR 1757.60.11221k2MF, 1%, 0204, E2401 pceR 18not used0R0MF, 020401 pceR 1957.60.1121120RMF, 1%, 0204, E2401 pceR 2057.60.1471470RMF, 1%, 0204, E2401 pceR 2157.60.1101100RMF, 1%, 0204, E2401 pceR 2257.60.1471470RMF, 1%, 0204, E2401 pceR 2357.60.1471470RMF, 1%, 0204, E2401 pceR 2457.60.1224220kMF, 1%, 0204, E2401 pceR 2557.60.1561560RMF, 1%, 0204, E2401 pceR 2657.60.12722k7MF, 1%, 0204, E2401 pceR 2757.60.11521k5MF, 1%, 0204, E2401 pceR 2857.60.110310kMF, 1%, 0204, E2401 pceR 2957.60.1124120kMF, 1%, 0204, E2401 pceR 3057.60.1104100kMF, 1%, 0204, E2401 pceR 31not used5k6MF, 1%, 0204, E2401 pceR 32not used5k6MF, 1%, 0204, E2401 pceR 3357.60.1154150kMF, 1%, 0204, E2401 pceR 3457.60.110310kMF, 1%, 0204, E2401 pceR 3557.60.1104100kMF, 1%, 0204, E2401 pceR 3657.60.110310kMF, 1%, 0204, E2401 pceR 3757.60.1101100RMF, 1%, 0204, E2401 pceR 3857.60.15625k6MF, 1%, 0204, E2401 pceR 3957.60.15625k6MF, 1%, 0204, E2401 pceR 4057.60.12222k2MF, 1%, 0204, E2401 pceR 4157.60.12252M2MF, 1%, 0204, E2401 pceR 4257.60.110310kMF, 1%, 0204, E2401 pceDate printed: 20.06.02Part No.Qty.Type/Val.DescriptionPos.Idx.Part No.Qty.Type/Val.DescriptionPos.Idx.DYNAMICS MODULE 1.913.326.00 ( 0)1.913.325Page: 2 of 2R 4357.60.110310kMF, 1%, 0204, E2401 pceR 4457.60.115315kMF, 1%, 0204, E2401 pceR 4557.60.115315kMF, 1%, 0204, E2401 pceR 4657.60.115315kMF, 1%, 0204, E2401 pceR 4757.60.11051MMF, 1%, 0204, E2401 pceR 4857.60.1334330kMF, 1%, 0204, E2401 pceR 4957.60.122322kMF, 1%, 0204, E2401 pceR 5057.60.11521k5MF, 1%, 0204, E2401 pceR 5157.60.156356kMF, 1%, 0204, E2401 pceR 5257.60.147347kMF, 1%, 0204, E2401 pceR 5357.60.110310kMF, 1%, 0204, E2401 pceR 5457.60.110310kMF, 1%, 0204, E2401 pceR 5557.60.1104100kMF, 1%, 0204, E2401 pceR 5657.60.1101100RMF, 1%, 0204, E2401 pceR 5757.60.1821820RMF, 1%, 0204, E2401 pceR 5857.60.156356kMF, 1%, 0204, E2401 pceR 5957.60.147347kMF, 1%, 0204, E2401 pceR 6057.60.110310kMF, 1%, 0204, E2401 pceR 6157.60.1101100RMF, 1%, 0204, E2401 pceR 6257.60.1271270RMF, 1%, 0204, E2401 pceR 6357.60.110310kMF, 1%, 0204, E2401 pceR 6457.60.110310kMF, 1%, 0204, E2401 pceR 65not used10kMF, 1%, 0204, E2401 pceR 66not used20kMF, 1%, 0204, E2401 pceR 6757.60.110310kMF, 1%, 0204, E2401 pceR 6857.60.120320kMF, 1%, 0204, E2401 pceR 69not used20kMF, 1%, 0204, E2401 pceR 70not used10kMF, 1%, 0204, E2401 pceR 71not used10kMF, 1%, 0204, E2401 pceR 72not used10kMF, 1%, 0204, E2401 pceR 7357.60.11021k0MF, 1%, 0204, E2401 pceR 7457.60.110310kMF, 1%, 0204, E2401 pceR 7557.60.110310kMF, 1%, 0204, E2401 pceR 7657.60.110310kMF, 1%, 0204, E2401 pceR 7757.60.120320kMF, 1%, 0204, E2401 pceR 7857.92.70120.3APTC 60V01 pceR 7957.60.11821k8MF, 1%, 0204, E2401 pceR 8057.92.70120.3APTC 60V01 pceR 8157.60.1104100kMF, 1%, 0204, E2401 pceR 82not used100kMF, 1%, 0204, E2401 pceR 83not used100kMF, 1%, 0204, E2401 pceR 8457.60.147347kMF, 1%, 0204, E2401 pceR 8557.60.1104100kMF, 1%, 0204, E2401 pceR 8657.60.147347kMF, 1%, 0204, E2401 pceR 87not used18kMF, 1%, 0204, E2401 pceR 88not used8k2MF, 1%, 0204, E2401 pceR 89not used100kMF, 1%, 0204, E2401 pceR 9057.60.118318kMF, 1%, 0204, E2401 pceR 9157.60.18228k2MF, 1%, 0204, E2401 pceR 9257.60.1104100kMF, 1%, 0204, E2401 pceR 93not used27kMF, 1%, 0204, E2401 pceR 94not used10kMF, 1%, 0204, E2401 pceR 95not used27kMF, 1%, 0204, E2401 pceR 96not used10kMF, 1%, 0204, E2401 pceR 9757.60.12222k2MF, 1%, 0204, E2401 pceR 9857.60.156356kMF, 1%, 0204, E2401 pceR 9957.60.147347kMF, 1%, 0204, E2401 pceR 10057.60.127327kMF, 1%, 0204, E2401 pceR 10157.60.110310kMF, 1%, 0204, E2401 pceR 10257.60.127327kMF, 1%, 0204, E2401 pceR 10357.60.110310kMF, 1%, 0204, E2401 pceR 104not used3k9MF, 1%, 0204, E2401 pceR 10557.60.13923k9MF, 1%, 0204, E2401 pceR 10657.92.70120.3APTC 60V01 pceR 10757.60.1104100kMF, 1%, 0204, E2401 pceR 10857.60.1104100kMF, 1%, 0204, E2401 pceR 10957.60.1104100kMF, 1%, 0204, E2401 pceR 11057.60.1104100kMF, 1%, 0204, E2401 pceR 11157.60.1104100kMF, 1%, 0204, E2401 pceRA 158.20.67012*50k lin2*R, Doppelachse01 pceRA 258.20.65