Studer-928-lim-sm 电路图 维修手册.pdf

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1、Studer 928 Limiter/Compressor/Noise Gate Module Product Information RadioFans.CN 收音机爱 好者资料库 General The 4-channel Limiter/Compressor/Noise Gate module (1.913.325.xx) can be installed in the meter panel of the Studer 928 analog mixing consoles. The module function is in line with the four correspondi

2、ng input channels below it. Main Applications The Limiter/Compressor section allows compressing the dynamic range and limiting the maximum level by an adjustable limiter threshold value. Attack and decay times are also adjustable; the decay character- Operating Elements GRM Gain reduction meter, ind

3、icates the gain reduction in the Limiter/Com- pressor/Noise Gate signal path in dB. Noise Gate Section NG Key to activate the Noise Gate function. THRESH. Noise Gate threshold, adjustable from 0 to 50 dB. RANGE Noise Gate gain reduction, adjustable from 0 to 50 dB. RELEASE (s) Time between the under

4、shooting of the Noise Gate threshold and the start of the Noise Gate action. Adjustable from 0.2 to 5 s. Limiter/Compressor Section L / C Key to activate the Limiter/Compressor function. LINK ? Control voltage coupling with the adjacent Limiter/Compressor/Noise Gate unit at the right-hand side. The

5、higher voltage of either one controls both units. Main application of this feature is processing a stereo signal connected to two mono channels (e.g. two microphones). With the control voltages of these two channels linked, the localization of sound sources within the stereo image remains stable. TH

6、RESH. Compressor threshold, adjustable from 20 to +10 dB. RATIO Compression 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 reduc

7、tion and the LIM setting of the RATIO control. The actual release time is program dependent and optimized, thus differences to the control position may occur. istic is additionally determined by the program content to avoid unwanted pumping effects. The Noise Gate section reduces the residual noise

8、of a connected source during program intermissions by reducing the gain of the channel, if the source signal is below a preset value. For instance, in drum and bass recordings a noise gate is used to produce a dry sound with high presence character. The Limiter/Compressor/Noise Gate module controls

9、the VCAs in the input channels, resulting in a high S/N ratio with minimum distortion. Studer 928 Limiter/Compressor/Noise Gate Module Specifications: Audio: No audio signal is processed within the Limiter/Compressor/Noise Gate module, but only the control signal for the input channels VCAs. In this

10、 way, the distortion, S/N, and frequency response performance remains 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 mA RadioFans.CN 收音机

11、爱 好者资料库 012 0 2 t s Uout dBu 012 0 2 t s Uout dBu 0.10.30.5 0 2 t s Uout dBu 0.20.40.6 012345 0 +2 t ms Uout dBu 4 ms 012345 0 +2 t ms Uout dBu 2 ms 012345 0 +2 t ms Uout dBu 0.6 ms Studer 928 Limiter/Compressor/Noise Gate Module Noise Gate Release Time Above: Four different noise gate RELEASE time

12、settings (1: min.; 2: 1 s; 3: 3 s; 4: max.) at a 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 compres

13、sion) and LIM (maximum compression, limiter effect). 01234567 30 10 20 t s Uout dBu (2) (3) (4) (1) (1) (2) (3) (4) (1) 1 2 2 2 2 LIM LIM LIM LIM +10 +20 Uin dBu Uout dBu 20 10 +10 10200 Limiter/Compressor: Threshold Range Limiter/Compressor: Attack/Release Time Limiter/Compressor characteristics at

14、 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. RadioFans.CN 收音机爱 好者资料库 Subject to change. Studer is a registered trademark of Studer Professional Audio AG. Printed in Switzerland. Copyright by Studer Profe

15、ssional Audio AG Studer 928 Limiter/Compressor/Noise Gate Module Block Diagram Limiter/Compressor/Noise Gate Module with Mono Input Unit (only one channel shown) 1.913.325 Date printed: 20.06.02 4-Ch Dynamics Module 4-Channel Dynamics Module 1.913.325 1.913.325 4-Ch Dynamics Module Date printed: 20.

16、06.02 Dynamics Module 1.913.326.00 1.913.325 Date printed: 20.06.02 4-Ch Dynamics Module Dynamics Module 1.913.326.00 S1 with MP9S3 with MP11 S2 with MP10 Part No.Qty.Type/Val.DescriptionPos.Idx.Part No.Qty.Type/Val. DescriptionPos.Idx. DYNAMICS MODULE 1.913.326.00 ( 0) 1.913.325 Page: 1 of 2 C 159.

17、60.3337100nCER 50V, 10%, X7R, 080501 pce C 259.60.3337100nCER 50V, 10%, X7R, 080501 pce C 359.68.01271u0EL 50V, 4.0*5.701 pce C 459.60.3441220nCER 50V, 10%, X7R, 120601 pce C 559.68.01271u0EL 50V, 4.0*5.701 pce C 659.60.3337100nCER 50V, 10%, X7R, 080501 pce C 759.60.3337100nCER 50V, 10%, X7R, 080501

18、 pce C 859.60.3337100nCER 50V, 10%, X7R, 080501 pce C 959.60.333347nCER 50V, 10%, X7R, 080501 pce C 1059.60.2249100pCER 50V, 5%, C0G, 060301 pce C 1159.68.0115100uEL 35V, 8.0*10.701 pce C 1259.60.3337100nCER 50V, 10%, X7R, 080501 pce C 1359.60.3337100nCER 50V, 10%, X7R, 080501 pce C 1459.60.2249100p

19、CER 50V, 5%, C0G, 060301 pce C 15not used100nCER 50V, 10%, X7R, 080501 pce C 16not used100nCER 50V, 10%, X7R, 080501 pce C 1759.60.3337100nCER 50V, 10%, X7R, 080501 pce C 1859.60.3337100nCER 50V, 10%, X7R, 080501 pce C 1959.60.2249100pCER 50V, 5%, C0G, 060301 pce C 2059.60.3337100nCER 50V, 10%, X7R,

20、 080501 pce C 2159.60.3337100nCER 50V, 10%, X7R, 080501 pce C 22not used100nCER 50V, 10%, X7R, 080501 pce C 23not used100nCER 50V, 10%, X7R, 080501 pce C 24not used22uEL 16V, 5.0*5.701 pce C 2559.68.006722uEL 16V, 5.0*5.701 pce C 2659.60.2249100pCER 50V, 5%, C0G, 060301 pce C 2759.60.3337100nCER 50V

21、, 10%, X7R, 080501 pce C 2859.68.0115100uEL 35V, 8.0*10.701 pce C 2959.60.3337100nCER 50V, 10%, X7R, 080501 pce C 3059.60.3337100nCER 50V, 10%, X7R, 080501 pce C 31not used100nCER 50V, 10%, X7R, 080501 pce C 32not used100nCER 50V, 10%, X7R, 080501 pce C 33not used100nCER 50V, 10%, X7R, 080501 pce C

22、34not used100nCER 50V, 10%, X7R, 080501 pce C 3559.60.3337100nCER 50V, 10%, X7R, 080501 pce C 3659.60.3337100nCER 50V, 10%, X7R, 080501 pce C 37not used100nCER 50V, 10%, X7R, 080501 pce C 38not used100nCER 50V, 10%, X7R, 080501 pce C 3959.60.3337100nCER 50V, 10%, X7R, 080501 pce C 4059.60.3337100nCE

23、R 50V, 10%, X7R, 080501 pce C 4159.60.3337100nCER 50V, 10%, X7R, 080501 pce C 4259.68.0115100uEL 35V, 8.0*10.701 pce C 4359.60.223733pCER 50V, 5%, C0G, 060301 pce C 44not used22uEL 16V, 5.0*5.701 pce C 4559.68.006722uEL 16V, 5.0*5.701 pce C 46not used33pCER 50V, 5%, C0G, 060301 pce C 47not used33pCE

24、R 50V, 5%, C0G, 060301 pce C 48not used22uEL 16V, 5.0*5.701 pce C 4959.68.006722uEL 16V, 5.0*5.701 pce C 5059.60.223733pCER 50V, 5%, C0G, 060301 pce C 5159.60.223733pCER 50V, 5%, C0G, 060301 pce C 52not used22uEL 16V, 5.0*5.701 pce C 53not used22uEL 16V, 5.0*5.701 pce C 5459.68.006722uEL 16V, 5.0*5.

25、701 pce C 5559.68.006722uEL 16V, 5.0*5.701 pce C 5659.60.3337100nCER 50V, 10%, X7R, 080501 pce C 5759.68.0115100uEL 35V, 8.0*10.701 pce C 5859.60.3337100nCER 50V, 10%, X7R, 080501 pce C 5959.60.3337100nCER 50V, 10%, X7R, 080501 pce C 6059.60.223733pCER 50V, 5%, C0G, 060301 pce C 6159.60.3337100nCER

26、50V, 10%, X7R, 080501 pce D 150.60.80014448200mA 75V 4ns SOD 8001 pce D 250.60.80014448200mA 75V 4ns SOD 8001 pce D 350.60.80014448200mA 75V 4ns SOD 8001 pce D 4not usedBAS85200mA 30V Schottky SOD 8001 pce D 550.60.80014448200mA 75V 4ns SOD 8001 pce D 650.60.80014448200mA 75V 4ns SOD 8001 pce D 750.

27、60.80014448200mA 75V 4ns SOD 8001 pce D 850.60.80014448200mA 75V 4ns SOD 8001 pce D 950.60.80014448200mA 75V 4ns SOD 8001 pce D 1050.60.80014448200mA 75V 4ns SOD 8001 pce D 1150.60.80014448200mA 75V 4ns SOD 8001 pce D 1250.60.80014448200mA 75V 4ns SOD 8001 pce D 1350.60.80014448200mA 75V 4ns SOD 800

28、1 pce D 1450.60.8101BAS85200mA 30V Schottky SOD 8001 pce D 15not used4448200mA 75V 4ns SOD 8001 pce D 16not used4448200mA 75V 4ns SOD 8001 pce D 1750.60.80014448200mA 75V 4ns SOD 8001 pce D 1850.60.80014448200mA 75V 4ns SOD 8001 pce D 19not used4448200mA 75V 4ns SOD 8001 pce D 20not used4448200mA 75

29、V 4ns SOD 8001 pce D 2150.60.80014448200mA 75V 4ns SOD 8001 pce D 2250.60.80014448200mA 75V 4ns SOD 8001 pce D 2350.60.80014448200mA 75V 4ns SOD 8001 pce DL 150.04.2205L934YTLED 3mm yellow01 pce DL 250.04.2205L934YTLED 3mm yellow01 pce DL 350.04.2205L934YTLED 3mm yellow01 pce DL 4 50.04.2150 MV57164

30、 10*LED-Bargraf rot diffus01 pce DV 150.60.90032V75%, 0.2W, SOT 2301 pce DV 250.60.90115V65%, 0.2W, SOT 2301 pce DV 3not used10V5%, 0.2W, SOT 2301 pce DV 450.60.901710V5%, 0.2W, SOT 2301 pce DV 5not used10V5%, 0.2W, SOT 2301 pce DV 650.60.901710V5%, 0.2W, SOT 2301 pce IC 150.11.0119LM3914IC LM 3914

31、N,01 pce IC 250.61.0207LF353Dual Op-Amp JFET SO 801 pce IC 350.61.0207LF353Dual Op-Amp JFET SO 801 pce IC 450.61.0207LF353Dual Op-Amp JFET SO 801 pce IC 550.61.0201TL062Dual FET Op-Amp01 pce IC 650.61.0207LF353Dual Op-Amp JFET SO 801 pce IC 750.10.0108LM317L Series regulator 100mA .+37V01 pce IC 850

32、.61.0201TL062Dual FET Op-Amp01 pce IC 9not usedLF353Dual Op-Amp JFET SO 801 pce IC 1050.61.0207LF353Dual Op-Amp JFET SO 801 pce IC 11not usedLF353Dual Op-Amp JFET SO 801 pce IC 1250.61.0207LF353Dual Op-Amp JFET SO 801 pce IC 1350.61.0207LF353Dual Op-Amp JFET SO 801 pce IC 1450.61.0201TL062Dual FET O

33、p-Amp01 pce J 1not usedJumper0.63*0.63mm, Au01 pce J 254.01.0021Jumper0.63*0.63mm, Au01 pce MP 11.913.326.11DYNAMIC MODUL PCB01 pce MP 21.913.326.04STUDER-NR.-ETIKETTE 10 * 2001 pce MP 343.01.0108LabelESE-WARNSCHILD01 pce MP 41.928.220.099mm ALPS POT BRACKET WITH PIP01 pce MP 51.928.220.099mm ALPS P

34、OT BRACKET WITH PIP01 pce MP 61.928.220.099mm ALPS POT BRACKET WITH PIP01 pce MP 71.928.220.099mm ALPS POT BRACKET WITH PIP01 pce MP 81.928.220.099mm ALPS POT BRACKET WITH PIP01 pce MP 91.928.201.51PUSH BOTTON NG01 pce MP 101.928.201.52PUSH BOTTON L/C01 pce MP 111.928.201.53PUSH BOTTON LINK01 pce P

35、154.11.01362*3pPin 0.63*0.63, RM2.5401 pce P 254.14.21006p1/20 Au, gerade, Verrieg01 pce P 354.14.21006p1/20 Au, gerade, Verrieg01 pce P 4not used10p1/20 Au, gerade, Verrieg01 pce P 554.14.210110p1/20 Au, gerade, Verrieg01 pce Q 150.60.1002BC860CPNP 45V 100mA SOT 2301 pce Q 250.60.1002BC860CPNP 45V

36、100mA SOT 2301 pce Q 350.60.1002BC860CPNP 45V 100mA SOT 2301 pce Q 450.60.1002BC860CPNP 45V 100mA SOT 2301 pce Q 550.60.1002BC860CPNP 45V 100mA SOT 2301 pce Q 650.60.1002BC860CPNP 45V 100mA SOT 2301 pce R 157.60.13323k3MF, 1%, 0204, E2401 pce R 257.60.147347kMF, 1%, 0204, E2401 pce R 357.60.15625k6M

37、F, 1%, 0204, E2401 pce R 457.60.156356kMF, 1%, 0204, E2401 pce R 557.60.1824820kMF, 1%, 0204, E2401 pce R 657.60.1471470RMF, 1%, 0204, E2401 pce R 757.60.122322kMF, 1%, 0204, E2401 pce R 857.60.122322kMF, 1%, 0204, E2401 pce R 957.60.133333kMF, 1%, 0204, E2401 pce R 1057.60.147347kMF, 1%, 0204, E240

38、1 pce R 1157.60.1821820RMF, 1%, 0204, E2401 pce R 1257.60.1104100kMF, 1%, 0204, E2401 pce R 1357.60.11521k5MF, 1%, 0204, E2401 pce R 1457.60.139039RMF, 1%, 0204, E2401 pce R 1557.60.11821k8MF, 1%, 0204, E2401 pce R 1657.60.1334330kMF, 1%, 0204, E2401 pce R 1757.60.11221k2MF, 1%, 0204, E2401 pce R 18

39、not used0R0MF, 020401 pce R 1957.60.1121120RMF, 1%, 0204, E2401 pce R 2057.60.1471470RMF, 1%, 0204, E2401 pce R 2157.60.1101100RMF, 1%, 0204, E2401 pce R 2257.60.1471470RMF, 1%, 0204, E2401 pce R 2357.60.1471470RMF, 1%, 0204, E2401 pce R 2457.60.1224220kMF, 1%, 0204, E2401 pce R 2557.60.1561560RMF,

40、1%, 0204, E2401 pce R 2657.60.12722k7MF, 1%, 0204, E2401 pce R 2757.60.11521k5MF, 1%, 0204, E2401 pce R 2857.60.110310kMF, 1%, 0204, E2401 pce R 2957.60.1124120kMF, 1%, 0204, E2401 pce R 3057.60.1104100kMF, 1%, 0204, E2401 pce R 31not used5k6MF, 1%, 0204, E2401 pce R 32not used5k6MF, 1%, 0204, E2401

41、 pce R 3357.60.1154150kMF, 1%, 0204, E2401 pce R 3457.60.110310kMF, 1%, 0204, E2401 pce R 3557.60.1104100kMF, 1%, 0204, E2401 pce R 3657.60.110310kMF, 1%, 0204, E2401 pce R 3757.60.1101100RMF, 1%, 0204, E2401 pce R 3857.60.15625k6MF, 1%, 0204, E2401 pce R 3957.60.15625k6MF, 1%, 0204, E2401 pce R 405

42、7.60.12222k2MF, 1%, 0204, E2401 pce R 4157.60.12252M2MF, 1%, 0204, E2401 pce R 4257.60.110310kMF, 1%, 0204, E2401 pce Date printed: 20.06.02 Part No.Qty.Type/Val.DescriptionPos.Idx.Part No.Qty.Type/Val.DescriptionPos.Idx. DYNAMICS MODULE 1.913.326.00 ( 0) 1.913.325 Page: 2 of 2 R 4357.60.110310kMF,

43、1%, 0204, E2401 pce R 4457.60.115315kMF, 1%, 0204, E2401 pce R 4557.60.115315kMF, 1%, 0204, E2401 pce R 4657.60.115315kMF, 1%, 0204, E2401 pce R 4757.60.11051MMF, 1%, 0204, E2401 pce R 4857.60.1334330kMF, 1%, 0204, E2401 pce R 4957.60.122322kMF, 1%, 0204, E2401 pce R 5057.60.11521k5MF, 1%, 0204, E24

44、01 pce R 5157.60.156356kMF, 1%, 0204, E2401 pce R 5257.60.147347kMF, 1%, 0204, E2401 pce R 5357.60.110310kMF, 1%, 0204, E2401 pce R 5457.60.110310kMF, 1%, 0204, E2401 pce R 5557.60.1104100kMF, 1%, 0204, E2401 pce R 5657.60.1101100RMF, 1%, 0204, E2401 pce R 5757.60.1821820RMF, 1%, 0204, E2401 pce R 5

45、857.60.156356kMF, 1%, 0204, E2401 pce R 5957.60.147347kMF, 1%, 0204, E2401 pce R 6057.60.110310kMF, 1%, 0204, E2401 pce R 6157.60.1101100RMF, 1%, 0204, E2401 pce R 6257.60.1271270RMF, 1%, 0204, E2401 pce R 6357.60.110310kMF, 1%, 0204, E2401 pce R 6457.60.110310kMF, 1%, 0204, E2401 pce R 65not used10

46、kMF, 1%, 0204, E2401 pce R 66not used20kMF, 1%, 0204, E2401 pce R 6757.60.110310kMF, 1%, 0204, E2401 pce R 6857.60.120320kMF, 1%, 0204, E2401 pce R 69not used20kMF, 1%, 0204, E2401 pce R 70not used10kMF, 1%, 0204, E2401 pce R 71not used10kMF, 1%, 0204, E2401 pce R 72not used10kMF, 1%, 0204, E2401 pc

47、e R 7357.60.11021k0MF, 1%, 0204, E2401 pce R 7457.60.110310kMF, 1%, 0204, E2401 pce R 7557.60.110310kMF, 1%, 0204, E2401 pce R 7657.60.110310kMF, 1%, 0204, E2401 pce R 7757.60.120320kMF, 1%, 0204, E2401 pce R 7857.92.70120.3APTC 60V01 pce R 7957.60.11821k8MF, 1%, 0204, E2401 pce R 8057.92.70120.3APT

48、C 60V01 pce R 8157.60.1104100kMF, 1%, 0204, E2401 pce R 82not used100kMF, 1%, 0204, E2401 pce R 83not used100kMF, 1%, 0204, E2401 pce R 8457.60.147347kMF, 1%, 0204, E2401 pce R 8557.60.1104100kMF, 1%, 0204, E2401 pce R 8657.60.147347kMF, 1%, 0204, E2401 pce R 87not used18kMF, 1%, 0204, E2401 pce R 8

49、8not used8k2MF, 1%, 0204, E2401 pce R 89not used100kMF, 1%, 0204, E2401 pce R 9057.60.118318kMF, 1%, 0204, E2401 pce R 9157.60.18228k2MF, 1%, 0204, E2401 pce R 9257.60.1104100kMF, 1%, 0204, E2401 pce R 93not used27kMF, 1%, 0204, E2401 pce R 94not used10kMF, 1%, 0204, E2401 pce R 95not used27kMF, 1%, 0204, E2401 pce R 96not used10kMF, 1%, 0204, E2401 pce R 9757.60.12222k2MF, 1%, 0204, E2401 pce R 9857.60.156356kMF, 1%, 0204, E2401 pce R 9957.60.147347kMF, 1%, 0204, E2401 pce R 10057.