EV_PSX1000,_1600,_2200_Powered_Mixer_Service_Manual电路图.pdf

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1、STEREO POWERED MIXER SERVICE MANUAL PSX1000 PSX1600 PSX2200 RadioFans.CN 收音机爱 好者资料库 The lightning flash with arrowhead symbol, within an equi- lateral triangle is intended to alert the user to the presence of uninsulated “dangerous voltage” within the products enclosure that may be of sufficient mag

2、nitude to constitute a risk of electric shock to persons. The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintance (servicing) instructions in the literature accompanying the appliance. IMPORTANT SAFETY INSTRUCTIONS 1. Re

3、ad these instructions. 2. Keep these instructions. 3. Heed all warnings. 4.Follow all instructions. 5. Do not use this apparatus near water. 6.Clean only with a damp cloth. 7. Do not block any of the ventilation openings. Install in accordance with the manufactures instructions. 8.Do not install nea

4、r any heat sources such as radiators, heat registers, stoves, or other apparatus that produce heat. 9.Only use attachments/accessories specified by the manufacturer. 10. Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as

5、power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped. For US and CANADA only: Do not defeat the safety purpose of the grounding-type plug. A groundin

6、g type plug has two blades and a third grounding prong. The wide blade or the third prong are provided for your safety. When the provided plug does not fit into your outlet, consult an electrican for replacement of the absolete outlet. 1. Security regulations as stated in the EN 60065 (VDE 0860 / IE

7、C 65) and the CSA E65 - 94 have to be obeyed when servicing the appliance. 2. Use of a mains separator transformer is mandatory during maintenance while the appliance is opened, needs to be operated and is connected to the mains 3. Switch off the power before retrofitting any extensions, changing th

8、e mains voltage or the output voltage. 4. The minimum distance between parts carrying mains voltage and any accessible metal piece (metal enclosure), respectively between the mains poles has to be 3 mm and needs to be minded at all times. The minimum distance between parts carrying mains voltage and

9、 any switches or breakers that are not connected to the mains (secondary parts) has to be 6 mm and needs to be minded at all times. 5. Replacing special components that are marked in the circuit diagram using the security symbol (Note) is only permissible when using original parts. 6. Altering the c

10、ircuitry without prior consent or advice is not legitimate. 7. Any work security regulations that are applicable at the location where the appliance is being serviced have to be strictly obeyed. This applies also to any regulations about the work place itself. 8. All instructions concerning the hand

11、ling of MOS - circuits have to be observed. Note: SAFETY COMPONENT (HAS TO BE REPLACED WITH ORIGINAL PART ONLY) IMPORTANT SERVICE INSTRUCTIONS CAUTION: These servicing instructions are for use by qualified personnel only. To reduce the risk of electric shock, do not perform any servicing other than

12、that contained in the Operating Instructions unless you are qualified to do so. Refer all servicing to qualified service personnel. 1-2 RadioFans.CN 收音机爱 好者资料库 WARRANTY (Limited) Electro-Voice products are guaranteed against malfunction due to defects in materials or workmanship for a specified peri

13、od, as noted in the individual product-line statement(s) below, or in the individual product data sheet or owners manual, beginning with the date of original purchase. If such malfunction occurs during the specified period, the product will be repaired or replaced (at our option) without charge. The

14、 product will be returned to the customer prepaid. Exclusions and Limitations: The Limited Warranty does not apply to: (a) exterior finish or appearance; (b) certain specific items described in the individual product-line statement(s) below, or in the individual product data sheet or owners manual;

15、(c) Malfunction resulting from use or operation of the product other than as specified in the product data sheet or owners manual; (d): malfunction resulting from misuse or abuse of the product; or (e): malfunction occurring at any time after repairs have been made to the product by anyone other tha

16、n Electro-Voice or any of its authorized service representatives. Obtaining Warranty Service: To obtain warranty service, a customer must deliver the product, prepaid, to Electro-Voice or any of its authorized service representatives together with proof of purchase of the product in the form of a bi

17、ll of sale or receipted invoice. A list of authorized service representatives is available from Electro-Voice at 600 Cecil Street, Buchanan, MI 49107 (616-695-6831) and/or Electro-Voice West at 9130 Glenoaks Boulevard, Sun Valley, CA 91532 (213-875-1900). Incidental and Consequential Damages Exclude

18、d: Product repair or replacement and return to the customer are the only remedies provided to the customer. Electro-Voice shall not be liable for any incidental or consequential damages including, without limitation, injury to persons or property or loss of use. Some states do not allow the exclusio

19、n or limitation of incidental or consequential damages so the above limitation or exclusion may not apply to you. Other Rights: This warranty gives you specific legal rights, and you may have other rights which vary from state to state. Electro-Voice Electronics are guaranteed against malfunction du

20、e to defects in materials or workmanship for a period of three (3) years from the date of original purchase. Additional details are included in the Uniform Limited Warranty Statement. Specifications subject to change without notice. 600 Cecil Street, Buchanan, Michigan 49107, Phone 616/695-6831, Fax

21、: 616/695-1304 TELEX/EVI Audio Canada, 705 Progress Ave. Unit 46 Toronto, Onatario, M1H 2x1, Canada , Phone: 800/881-1685, Fax: 877/522-2242 TELEX Communications A.G., Keltenstrasse 11, CH-2563 IPSACH, Switzerland, Phone: 011-41/32-51-6833, Fax: 011-41/32-51-1221 EVI Audio Deutschland GmbH, Hirschbe

22、rger Ring 45, D-94315, Straubing, Germany, Phone: 011-49/9421-7060, Fax: 011-49/9421-706265 EVI Audio France S.A., Parc de Courcerin-Allee Lech Walesa, Lognes, f-77185 Marne La Vallee, France, Phone: 011-33/1-6480-0090, Fax: 011-33/1-6006-5103 EVI Audio Japan Ltd., 2-5-60 Izumi, Suginami-ku, Tokyo,

23、Japan 168, Phone: 011-81/3-3325-7900, Fax: 011-81/3-3325-7789 EVI Audio (Aust.) Pty., Unit 24, Block C, Slough Business Park, Slough Ave., Silverwater, N.S.W 2141, Australia, Phone 011-61/2-648-3455, Fax: 011-61/2-648-5585 EVI Audio (Hong Kong) Limited, Unit E 10 dB, Q = 1.4 FILTERLO-CUT; f = 80 Hz;

24、 18 dB/oct. (monaural inputs) VOICING FILTER (monaural inputs) FEEDBACK FILTER (AUX3) controllable 80 Hz 7.7 kHz / notch / 9 dB FX-SECTION2 separately controllable stereo FX-units, 18 bit, UP/DOWN-keys, each with 99 program presets (delay, reverb, modulation, and mixed programs) DIMENSIONS AND WEIGH

25、T PM/PSX 1000 desktop model PM/PSX 1000 rack mount model PM/PSX 1600 desktop model Width508.5 mm483 mm667.5 mm Height210.3 mm443.7 mm (10 H.E.)210.3 mm Depth478.7 mm195.2 mm478.7 mm Weight20 kg21.5 kg24 kg EXTENSION KITSNRS 90 22019 rack-mount-ears for the PM 1000 No. 112 698 DCN 112700gooseneck lit

26、-light, 12 volts/2.4 watts, 12, XLR-connector DCN 110693foot switch FS11 NOTE when mounting the PM 1000 / PSX 1000 in a rack shelf system To protect the appliance against thermal overload, a space of at least 2 HU has to be left directly below and above the PM 1000 which can be covered using dummy p

27、lates. In case the rack shelf is equipped with front and rear covers, these have to be detached. MEASUREMENT DATA PM/PSX 1000/1600, complete 5 measuring conditions: measurement tolerance:X = 1.5 dB test frequency:f = 1 kHz reference level:U = 775 mV (0dB) source impedance LINE:R(Q) = 50 source imped

28、ance MIC:R(Q) = 150 load impedance mixer outputs:R(L) = 100 k load impedance headphones:R(L) = 2 x 200 load impedance power amplifier:R(L) = 4, 8, EQ, PAN, BAL controls:center position FADER:0 dB-position gain controls:Unity Gain = 0 dB ( MIC 20 dB ) AUX, LEVEL controls:center position measurement s

29、tandards:IEC 268, IHF-A protection class:I test voltage IEC65:3000 Vrms U (F) = extraneous voltageunweighted with B = 22 Hz 22 kHz, eff. value (IEC 268) U (G) = noise voltagefrequency weighting filter according to CCIR-468-3, quasi-peak- rated (IEC 268) U (A) = interfering voltageA-weighted, dB (A),

30、 eff. value (IEC 268) The printed board assembly is provided with service terminals. The assignment of these terminals complies to the following table: CNSERV 1BelegungCNSERV 2Belegung 1-Vcc1LIM L 2BIAS + R2-15V 3BIAS - R3LIM R 4FAN-Voltage4+5V 5+Vcc5+24V 6BIAS + L6+15V 7BIAS - L7TEMP -Heatsink 8Tem

31、p +Heatsink8GND 1. operating voltage:U(B) = 230V / 50Hz . 60 Hz 2. critical tolerance (operating voltage):- 30% . +10% 3. power consumption (both channels driven): power consumptioncurrent no load 80.120W- nominal operation (RL = 4 ohms) 2 x 470 watts 1600 W8 A 4. adjustments: 4.1 IDLE-CIRCUIT CURRE

32、NT ADJUSTMENT: A DC-voltammeter has to be connected to the BIAS test points to adjust the idle-circuit current via the trimmer on the printed board assembly 84169. Adjustment of both power amplifier channels L 10 dB, Q = 1.4 FILTERLO-CUT; f = 80 Hz; 18dB/oct in monaural input channels VOICING FILTER

33、 in monaural input channels FEEDBACK FILTER in AUX3 controllable 80 Hz . 7.7 kHz / Notch / - 9 dB EFFECT UNIT2 separately controllable stereo effect units, 18-Bit, with UP/DOWN keys, each providing 99 preset programs (delay, reverb, modulation and mixed programs) DIMENSIONS AND WEIGHT PM2200 / PSX22

34、00 Width826.5 mm Height210.3 mm Depth478.7 mm Weight29 kg 5 / 12 EXTENSIONS DCN 112700 Gooseneck-Lamp, 12V/2.4W, 12“, XLR DCN 110693 Footswitch FS11 Measured Data: Measuring Conditions : Measuring Tolerance :X = 1.5 dB Measuring Frequency :f = 1 kHz All stated levels refer to :U = 775 mV ( 0 dBu) So

35、urce Impedance Line :R(Q) = 50 Source Impedance MIC :R(Q) = 150 Load Impedance mixer outputs:R(L) = 100 k Load Impedance headphones:R(L) = 2 x 200 Load Impedance power amplifier:R(L) = 4 , 8 EQ-, PAN-, BAL - controlscenter position FADER0 dB-position Gain ControlUnity Gain = 0 dB ( MIC 20 dB ) AUX-,

36、 LEVEL controlcenter position Measuring Standards:IEC 268, IHF-A Safety Class:I Test Voltage IEC65:3000 Vrms U(F) = Extraneous VoltageNon-weighted with B = 22Hz . 22 kHz, effective value ( IEC 268 ) U(G) = Noise VoltageWeighting filter according to CCIR-468-3, quasi peak-weighted ( IEC 268 ) U(A) =

37、Interference VoltageA-weighted, dB(A), effective value ( IEC 268 ) The printed board assembly 84198 provides service connectors with the following pin-assignment: CNSERV 1Pin-AssignmentCNSERV 2Pin-Assignment 1-Vcc1LIM L 2BIAS + R2-15V 3BIAS - R3LIM R 4FAN-Voltage4+5V 5+Vcc5+24V 6BIAS + L6+15V 7BIAS

38、- L7TEMP heat sink 8+ 12V ( Lamp )8GND 1. Operating Voltages: PM2200 EuropeU(B) = 230V / 50Hz . 60 Hz PM2200USAU(B) = 120V / 50Hz . 60 Hz PM2200JapanU(B) = 100V / 50Hz . 60 Hz PM2200AustraliaU(B) = 240V / 50Hz . 60 Hz PSX2200 only U.S.A.U(B) = 120V / 50Hz . 60 Hz 2. Operating Voltage Deviation Range

39、:- 30% . +10% 3. Power and Current Consumption (both channels driven): PM2200PSX2200 Power Consumption Current Consumption Current Consumption Idling 130.150 W- Nominal Operation (RL=4Ohm) 2 x 660 W 2160 W9.4 A / 230 V18 A / 120 V 6 / 12 4. Settings /Adjustments : 4.1. IDLING CURRENT ADJUSTMENT : Co

40、nnect the DC-volt meter at the BIAS measuring points (refer to table) and adjust the idling current via the trim potentiometer (on the printed board assembly 84198). Adjust both power amplifier channels L slightly clipping. The distortion rate of the limited signal is at THD = 1.0 . 1.5 %. Further i

41、ncreasing the input signal up to a value of + 20 dBu should not result in remarkably higher clipping. 5.2.2. Attack and Release Times Tests have to be performed individually for both channels of the power amplifier: testing has to be performed without load resistors connected. 1.) Drive the power am

42、plifier with a burst signal ( f = 1kHz, 10 cycles, rate : 0.5 sec.) and U(E) = +16dBu at the Power Amp Input. 2.) Monitor the output signal via oscilloscope. After 3 to 4 signal periods, the limiter has controlled the major distortion down to a minor residual distortion (THD = 1% . 1.5 %). Attack Ti

43、me : 3 - 4 ms Release Time: 30 - 40 ms 5.3 POWER-ON DELAY : Make sure that the signal is present at the power amplifier input. Switch the power amplifier via the Power-On switch on. Approximately 2 seconds after switching the power on, the signal will be present at the output. The relay E2 that is l

44、ocated on the Mains-PCB bridges the NTC-resistor controlling the initial inrush current limiter. 5.4 FAN CONTROL : Upon switching on the power amplifier, the fans will run for approximately 2 seconds and stop when the power amplifier has regained its normal temperature. In idling condition (power-on

45、, no signal present) the fans are switched between SLOW and OFF mode, depending on the heat sinks temperature. Removing the connector CN14 lets the fans run in FAST mode. Measuring the fan voltage of approximately 30 VDC has to be performed between CNSERV1.4 and CNSERV2.6. 5.5. SOAR-PROTECTION TEST

46、: Channels separately driven up to 53V at 4 . Parallel-connect an 1 resistor. The protection circuit reacts and tries continuously to re-start! The protect-LED lights. Repeat the test with a 2 ohms resistor. The power amplifier should not switch off. 5.6. SHORT-CIRCUIT CURRENT-LIMITING TEST : Testin

47、g has to be performed for both channels of the power amplifier individually and without load: - drive each channel with a burst signal ( f = 1kHz, 1-3 cycles, rate: 1 sec. ), with U(E) = +10dBu - connect a load resistor of 1 ohm. 7 / 12 - the short-circuit current-limiter limits the output voltage a

48、t the load resistor symmetrically (monitor via oscilloscope) to a peak voltage value of 32 V (approximately 32 A max. Peak Output Current). 5.7. DC-VOLTAGE PROTECTION TEST : Only possible when testing a single printed board assembly Test both power amplifier channels individually: - Feed the power a

49、mplifier with a test signal ( f = 4 Hz ) at FET Q 316, respectively Q 516 Drain and drive the corresponding channel without load resistor connected. - Starting at an input voltage of approximately +10 dBu, the protection circuit reacts and tries continuously to re- start! The Protect-LED lights. - Repeat the test with f = 14 Hz. The power amplifier should not switch off. 5.8. HF-PROTECTION TEST : Caution: Perform this test only without load resistors connected to the power amplifier. Feed a +20 dBu sine burst signal