Dynacord-Powercord600-mix-sm 电路图 维修手册.pdf

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1、 SERVICE MANUAL 03. 1999 PowerMate 600 POWERED MIXER 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 magnitude

2、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. Read thes

3、e 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 near any h

4、eat 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 power-s

5、upply 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 grounding type

6、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 / IEC 65) a

7、nd 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 the mains

8、 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 any sw

9、itches 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 circuitr

10、y 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 handling of

11、 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 that co

12、ntained 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 GARANTIE Das Werk leistet Garantie fr alle nachweisbaren Material- und Ferti- gungsfehler fr die Dauer von 36 Monaten ab Verkauf. Garantieleistunge

13、n werden nur dann anerkannt, wenn gltige, d.h. vollstndig ausgefllte Garantieun- terlagen vorliegen. Von der Garantie ausgenommen sind alle Schden, die durch falsche oder unsachgeme Bedienung verursacht werden. Bei Fremdein- griffen oder eigenmchtigen nde- rungen erlischt jeder Garantie- anspruch. W

14、ARRANTY The manufacturers warranty co- vers all substantial defects in mate- rials and workmanship for a period of 36 months from the date of purchase. Liability claims are accepted solely, when a valid correctly and comple- tely filled out Warranty Registrati- on form is presented by the original o

15、wner of the product. The warranty does not cover damage that results from improper or inadequate treat- ment or maintenance. In case of alteration or unauthorized repairs, the warranty is automatically termi- nated. GARANTIE La garantie constructeur couvre tous les dfauts matriels et de main duvre p

16、our une priode de 36 mois compter de la date dachat. La garantie ne sera recon- nue que si la Carte de Garantie, correctement et compltement remplie, est prsente par lache- teur dorigine du produit. Les dom- mages dus un mauvais maniement de lappareil, un traite- ment ou une maintenance incor- rects

17、 ou inadquats ne sont pas garantis. Toute modification ou in- tervention effectue par une per- sonne non qualifie entrane la rsiliation automatique de la garan- tie. GmbH Hirschberger Ring 45 94315 Straubing Telefon (09421) 706-0 Telefax (09421) 706-265 nderungen vorbehalten. Subject to change witho

18、ut prior notice. Printed in Germany 07. 07. 1999 / Internet: http:/ www.dynacord.de RadioFans.CN 收音机爱 好者资料库 Table of Contents - Architects and engineers specifications - - Safety regulations - - Warranty - - Specifications - - Test datas - - Parts lists - - Service notes / infos / instructions - - S

19、pare parts plan - - Circuit diagrams - TELEX / EVI Audio GmbH - Service Department - Hirschberger Ring 45 94315 Straubing Tel.: +49-9421/706-342 Fax.: +49-9421/706-350 e-mail: josef.stadlertelex.de 3 Specifications: PowerMate 600 - complete device measuring standard: IEC 268, IHF-A Level: 0 dBu = 77

20、5 mV ( RMS )measured frequency : 1kHz Measuring Conditions 1. Nominal Power Output Capacity: Gain control set to UNITY GAIN = 0 dB ( 20 dB MIC ), all faders down, Master fader set to + 6 dB and all rotary controls at their center position. 2. Equivalent Input Noise Inputsource impedancegain control

21、LINE50 ohmsUnity Gain ( 20dB ) MIC150 ohmsGain max. 3. Distortion is generally measured via THD+Noise. The bandwidth (MBW) is 80 kHz. Mixing Console under nominal condition. OUTU(E) at the correspondent input U(A) at the measured output frequencies LINE+10 dBu+ 16 dBu1 kHz, 10 kHz MIC- 10 dBu+ 16 dB

22、u1 kHz, 10 kHz Power Amplifier+ 6 dBu150 W / 8 ohms20 Hz . 20 kHz 4. Frequency response at 20 dB below full modulation. 5. Crosstalk and damping at nominal setting U(A) = 16 dBu with variable band-pass filter. 6. Common mode rejection CMRR (selective with band-pass variable) InputU(E)outputgain cont

23、rol LINE+ 16 dBuMain OutUnity Gain ( 20dB ) MIC- 50 dBuMain OutGain max. POWER SUPPLY 1. Supply voltage: AC 2. Nominal supply voltage PM 600: 112727: 230 V; 112.: 240V; 112. : 100 V; 112750 : 120 V. 3. Nominal frequency of the power supply: 50 - 60 Hz 4. Deviation range of the power supply: - 30 % .

24、 + 10 % 5. Power consumption ( both channels driven with a 1 kHz sine signal) Power consumption with RL = 4 ohmsPM 600power consumption Idling power consumption40 . 60 W Nominal power consumption1000 W230V / 5,0A Standard power consumption350 W230V / 2,0A Maximum power consumption (THD=1%)1000 W230V

25、 / 5,0A Power consumption at 1/8 of the maximum output power ( 2 x 38 W )400 W230V / 2,2A Power consumption at 1/3 of the maximum output power ( 2 x 100 W )590 W230V / 3,3A 4 INPUT CHARACTERISTICS Mixer under nominal condition with nominal output level at the mixer outputs. Input sensitivity, gain,

26、channel faders and master fader set to their max. position. InputNominal input level (dBu) Input sensitivityMax. input level (dBu) Input impedance Balancing MIC- 60 . - 10-74dBu(155V)+ 111.8 k ohmsbalanced MONO LINE- 40 . + 10-54dBu(1,55mV)+ 3018 k ohmsbalanced STEREO LINE- 20 . + 10-34dBu(15.5mV)+

27、3018 k ohmsbalanced POWER AMP+ 6+6dBu(1.55V)+ 2018 k ohmsbalanced 2TRACK RET.+ 4-9dBu(275mV)+ 14 8 k ohmsunbalanced OUTPUT CHARACTERISTICS Mixer OutputNominal output level (dBu) Max. Output level (dBu) Output impedance Balancing MAIN OUT+ 6+ 2075 ohmsGND-Sense MONO OUT+ 6+ 2075 ohmsGND-Sense AUX SEN

28、D0+ 2075 ohmsGND-Sense REC. SEND- 7.8 ( - 10 dBV )+ 161 k ohmunbalanced PHONES- 2 / 200 ohms+ 18 / 200 ohms47 ohmsunbalanced OUTPUT CHARACTERISTICS Power Amplifier Nominal input voltage at the Power Amp In Nominal load impe- dance Nominal output power, Single Channel THD 0.1% Maximum output power, S

29、ingle Channel, THD=1% Max. Single Channel Output Power )1 Nominal output voltage Max. Idling output voltage Maximum Output voltage THD=1% + 6 dBu8150 W200 W210 W34.7 V43 V40.0 V + 6 dBu4300 W340 W390 W34.7 V43 V36.9 V )1 measured with a Dynamic Headroom-Test Signal according to IHF-A: 1 kHz Burst, 2

30、0ms On, 480 ms Off STABILIZING of the power amplifier Single Channel, standard output voltage 8 ohms4 ohms Stabilizing0.6 %1.2 % Stabilizing level0.05 dB0.1 dB FREQUENCY RESPONSES Amplification frequency response (-3 dB drop compared to the level at the standard frequency of 1kHz) : f (u) b - 3 dBf

31、(o) - 3 dB Any mixer input to any mixer output, better than15 Hz60 kHz Any mixer input to SPEAKER OUT L 10 dB, Q = 1.4 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

32、WEIGHT PM 600 Console PM 600 Rack Mount PM 600 Wall Mount Width455.5 mm483 mm455.5 mm Height175.8 mm310.3 mm ( 7 HU)340.6 mm Depth340.6 mm159 mmmm Weight13 kg13.5 kg14 kg EXTENSIONSNRS 90 239 Rack-mount ears for the PM 600 No. 112 741 NRS 90 242 Wall-mount kit for the PM 600 No. 112 742 ACCESSORYDCN

33、 110693Footswitch FS11 MOUNTING INSTRUCTION when vertically mounting the mixer in a rack-shelf system To prevent the appliance from suffering from thermal overload, it is necessary to install blind panels with ventilation louvres and with a height of 2 HU each, above and below the PM600. During the

34、operation, both, the front and the rear of the rack-shelf system have to be opened. 3 Measuring Specifications: complete device, PM 600 measuring conditions : measuring tolerance :X = 1.5 dB measuring frequency :f = 1 kHz stated levels refer to :U = 775 mV ( 0 dBu) source impedance LineR(Q) = 50 sou

35、rce impedance MICR(Q) = 150 load impedance mixer outputsR(L) = 100 k load impedance headphonesR(L) = 2 x 200 load impedance power amplifier:R(L) = 4 , 8 EQ-, PAN-, BAL - controlscenter position FADER0 dB setting Gain controlUnity Gain = 0 dB ( MIC 20 dB ) AUX-, LEVEL - controlscenter position measur

36、ing standards:IEC 268, IHF-A security class:I test voltage IEC65:3000 Vrms U(F) = extraneous voltageun-weighted with B = 22Hz . 22 kHz, effective value ( IEC 268 ) U(G) = noise voltagefrequency-weighting filter according to CCIR-468-3, quasi peak weighted (IEC 268) U(A) = interference voltageA-weigh

37、ted, dB(A), effective value (IEC 268) The printed board assemblies 84192/. are provided with service connectors. The pin-assignment of the service connectors is: CNS 1pin-assignmentCNS 2pin-assignment 1+ Vcc1LIM L 2BIAS + L2-15 V 3BIAS - L3LIM R 4FAN-Voltage4+15 V 5- Vcc5GND 6BIAS + R6+24 V 7BIAS -

38、R7Relay 8Temp +Heatsink8+5 V 1. Operating voltages: PM 600, EuropeU(B) = 230V / 50Hz . 60 Hz PM 600, JapanU(B) = 100V / 50Hz . 60 Hz PM 600, U.S.A./CanadaU(B) = 120V / 50Hz . 60 Hz PM 600, AustraliaU(B) = 240V / 50Hz . 60 Hz 2. Operating voltage deviation range:- 30% . +10% 3. Power and current cons

39、umption (both channels driven): PM 600PM 600 power consumptioncurrent consumption current consumption idling 40.60 W- nominal operation (RL=4 ohms) 1000 W5.0 A / 230 V9.5 A / 120 V 4. Setting /Adjustments : 4.1. IDLING CURRENT ADJUSTMENT : Connect the DC-volt meter at the BIAS measuring points (refe

40、r to table) and adjust the idling current via the trim potentiometer (on the printed board assemblies 84192 / 84.). Adjust both power amplifier channels LR. settingmeasuring point 1measuring point 2U (DC)BIAS trimmer BIAS LCNS 1.2CNS 1.36.5 mVVR101 BIAS RCNS 1.6CNS 1.76.5 mVVR301 4 Adjusting the idl

41、ing current has to be performed at normal room temperature. In case the power amplifier had previously been operated, it has to be given several hours to regain normal temperature. 4.3. VCA - OFFSET: Rhythmically open and short-circuit CNS 2.1 and CNS 2.2 for the left channel and CNS 2.3 and CNS 2.2

42、 for the right channel. The CNS are located on the printed board assemblies 84192/84. Use VR100 respectively VR300 to adjust the power amplifier outputs to their minimum offset (with oscilloscope to minimal peak value or to the audible minimal volume of the interfering pulse). 5. Function test : 5.1

43、. OUTPUT - offset voltage DC-measurement at the loudspeaker outputs LEFT / RIGHT with U(DC) 10mV. 5.2. LIMITER 5.2.1. Attenuation test Both channels separately driven with a 1 kHz signal and up to U(A) = 40 V (without load). Increase the input voltage by 10 dB. The LIMITER LED lights and the output

44、voltage ascents by approximately 1 dB to approximately 45 V, slightly clipping. The distortion rate of the limited signal is at THD = 1.0 . 1.5 %. Increasing 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

45、 performed for both channels of the power amplifier individually: testing has to be performed without load resistors connected. 1.) Drive the power amplifier 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 oscill

46、oscope. After 3 to 4 signal periods, the limiter has controlled the major distortion down to a minor residual distortion (THD = 1% . 1.5 %). attack time : 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 amplif

47、ier via the Power-On switch on. Approximately 2 seconds after switching the power on, the signal will be present at the output. The relay E1 which is located on the printed board assembly 84192/2 bridges the NTC-resistor that controls the initial inrush current limiter. 5.4 FAN CONTROL : Upon switch

48、ing-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, no signal present) the fans are switched between the SLOW and OFF mode, depending on the heat sinks temperature. Removing th

49、e connector CN18 lets the fans run in FAST mode. Measuring the fan voltage -5.5 VDC has to be performed between CNS 1.4 and CNS 2.5. 5.5. SOAR-PROTECTION TEST: Channels separately driven up to 35V at 4 . Connect an 1 resistor parallel. 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 : Testi