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MONITORING SYSTEM

T R M 6

Installation & Operation

MONITORING SYS

DESIGNED AND

ASSEMBLED IN THE

USA

Summary of Contents for Trans-nova TRM6

Page 1: ... MONITORING SYSTEM TRM6 Installation Operation MONITORING SYS DESIGNED AND ASSEMBLED IN THE U SA ...

Page 2: ...1 U S A Importer s Name _______________________________________________________ Importer s Address _______________________________________________________ Type of Equipment 2 channel Audio Power Amplifier Speaker Model No TRM6 Serial Number Year of Manufacture 1998 1999 2000 2001 2002 I the undersigned hereby declare that the equipment specified above conforms to the above Directive s and Standard...

Page 3: ...RMS 6 ohms high frequency 50 Watts RMS 4 ohms low frequency Signal to Noise 100dB CMRR 70dB typical 1kHz Input Impedance 47kΩ per phase balanced 47kΩ unbalanced Input Sensitivity Range 500mV to 3V unbalanced 275mV to 1 5V per phase balanced 4dB 1dB 2dB 5dB 8dB 11dB Gain 33dB max to 18dB min Power Consumption Idle Power 11W 150mA 115 VAC both channels driven Idle Power 11W 75mA 230 VAC Normal Opera...

Page 4: ...des of the equipment s plug be able to fully insert into the mating receptacle Never remove the round grounding pin on the plug in an attempt to mate to a two wire ungrounded receptacle use a grounding adaptor with the grounding tab or wire suitably connected to earth ground 11 NON USE PERIODS During periods of extended non use the power cord should be unplugged from the power source 12 CLEANING T...

Page 5: ...xtensiones deben proveer de la misma conección aterrada de tres hiles Es importante queelenchufesepuedaintroducircompletamenteenelreceptáculo Nunca remeva el pin de aterramiento en un intento por conectar el cable en un receptáculo de dos hilos no aterrado use un adaptador de aterramiento que esté adecuadamente conectado a un punto de tierra 11 PERIODOS SIN USO Durante períodos prolongados sin uso...

Page 6: ...être en mesure de fournir la charge électrique requise à un fonctionement sans risque de tout matériel relié 11 PÉRIODES DE NON UTILISATON Durant les périodes de non utilisation la prise de courant ne devrait pas être branchée à une source d energie 12 NETTOYAGE Le matériel devrait être nettoyé en respectant les instructions indiquées 13 PENETRATION DES LIQUIDES Un attention particulière est éxigé...

Page 7: ...e erforderlichen Ströme bertragen können Benutzen Sie immer dreiadrige Verlängerungskable 11 ZEITRÄUME IN DENE DAS GERÄT NICHT GENUTZT WIRD Wird das Gerät über einen längeren Zeitraum nicht genutzt z B Urlaub ziehen Sie bitten den Netzstecker aus der Steckdose 12 REINIGEN ReinigenSiedasGerätnur wieinderBedienungsanleitungdetailliert beschrieben 13 EINDRINGEN VON FREMDKÖRPERN Achten Sie darauf daβ ...

Page 8: ...tiscono la potenza sufficiente per i corretto fuinzionamento degli apparati connessi E altersì importante che vengano sempre impiegate prolunghe con la configurazaione a tre fili con terra 11 PERIODI DI NON UTILIZZO Durante lunghi periodi di non utilizzo staccare il cavo di alimentazione 12 PULIZIA L apparato deve essere pulito solo come indicato dalle istruzioni 13 INGRESSO DI OGGETTI E LIQUIDI S...

Page 9: ...MS Schematic Diagram 7 PC Board Layout 11 OPERATION Input Sensitivity 12 Bass Roll Off 12 Bass Shelving 13 Treble Shelving 13 AC Line 14 Power Switch 14 Status LED 15 Rubber Pad 15 Break In and Warm Up 15 Cleaning and Maintenance 15 SERVICE REFERENCE Parts List 16 Functional Block Diagram 19 Circuit Operation 20 Calibration 20 Input Circuit 21 Tweeter Crossover 21 Woofer Crossover 22 Thermal Prote...

Page 10: ...sducer The high frequency channel features up to 4dB of Treble shelving while the low frequency channel features up to 4dB of Bass shelving In addition the low frequency channel includes an active 2nd order subsonic filter selectable to limit harmful frequencies below 30Hz or 60Hz Monitoring the status of both channels is done with an LED indicating Power On Clipping and Thermal The high frequency...

Page 11: ... through the amplifier at low voltage The signal is directly level shifted to the fixed high voltage rails via a pair of driver transistors Signal linearity is assured by an active node formed by the driver transistors at ultrasonic frequencies This allows amplifier performance similar to Trans nova which is highly stable and linear while utilizing the advantages of a non floating power supply THE...

Page 12: ...his type of shielding prevents color and image distortion when placing the woofer in close proximity to direct view CRT television receivers and com puter monitors THE RESULT Prevents distortion in TV and computer monitors Phase Coherent Each monitor is Phase Coherent in order to assure proper arrival times of all frequencies in the near field environment This is accomplished by aligning both tran...

Page 13: ... THE RISK OF FIRE OR ELECTRIC SHOCK DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE RISK OF ELECTRIC SHOCK DO NOT OPEN 4 2 0 2 4 dB Bass Shelving SELECT ONE Treble Shelving SELECT ONE RCA Unbal 1dBu 2dBu 5dBu 8dBu 11dBu 30Hz 60Hz 4dB 2dB 2dB 4dB 4dB 2dB 2dB 4dB Bass Roll Off SELECT 30Hz OR 60Hz 30Hz 60Hz 140W Max CAUTION Power Switch Front Panel View 4 Rear Panel View Woofer Tweeter Rubber Pad St...

Page 14: ... T I O N Aiming the monitors directly forward Fig 1 may cause response problems resulting in inadequate stereo imaging Aiming the monitors toward you and spaced equally like a triangle Fig 2 provides the best imaging and produces the flattest frequency response If you frequently move your chair from side to side in front of your mixing console positioning the tweeter and woofer in horizontal align...

Page 15: ...eeter dome and woofer dust cap 3 4 ft Max listening level Acoustic Center Min listening level 6 XLR WIRING CONFIGURATIONS Using the balanced XLR input is recommended for installations where long cable runs are used or when the potential for stray electromagnetic fields from other wires exists There is a balanced and unbalanced method in which the XLR inputs can be used The first method is an XLR B...

Page 16: ...SC H E M A T I C DI A G R A M NOTES Unless specified otherwise 1 All resistors in ohms 2 All capacitors in microfarads 3 Channel 1 only shown 7 ...

Page 17: ... Qualified Service Personnel Only 8 ...

Page 18: ...Removable Center Spread SC H E M A T I C DI A G R A M NOTES Unless specified otherwise 1 All resistors in ohms 2 All capacitors in microfarads 3 Channel 1 only shown ...

Page 19: ...Removable Center Spread Qualified Service Personnel Only ...

Page 20: ... 11 SC H E M A T I C DI A G R A M NOTES Unless specified otherwise 1 All resistors in ohms 2 All capacitors in microfarads 3 Channel 1 only shown Qualified Service Personnel Only ...

Page 21: ...PC BOARD LAYOUT Qualified Service Personnel Only 12 ...

Page 22: ...n using the Bass Roll Off select only the 30Hz or 60Hz filter Engaging both switch configura tions at one time both switches ON may cause undesirable operation and is NOT RECOMMENDED BASS ROLL OFF The Bass Roll Off is a subsonic filter used to limit harmful frequencies sent to the low frequency transducer to prevent overexcursion The filter is selectable to electronically limit frequencies below 3...

Page 23: ... 2 4 200Hz 0dB 4dB 2dB 2dB 4dB ON 1 2 3 4 0dB 4dB 2dB 2dB 4dB ON 1 2 3 4 0dB 4dB 2dB 2dB 4dB ON 1 2 3 4 0dB 4dB 2dB 2dB 4dB ON 1 2 3 4 0dB 4dB 2dB 2dB 4dB ON 1 2 3 4 5kHz dB 4 2 0 2 4 20kHz 5kHz dB 4 2 0 2 4 20kHz 5kHz dB 4 2 0 2 4 20kHz 5kHz dB 4 2 0 2 4 20kHz 5kHz dB 4 2 0 2 4 20kHz 0dB 4dB 2dB 2dB 4dB ON 1 2 3 4 0dB 4dB 2dB 2dB 4dB ON 1 2 3 4 0dB 4dB 2dB 2dB 4dB ON 1 2 3 4 0dB 4dB 2dB 2dB 4dB O...

Page 24: ...TUS LED Amplifier operation is monitored internally and has a status LED This indicator can be used for system troubleshooting in case of aberrant behavior RUBBER PAD A large rubber pad is supplied to eliminate annoying buzzes and rattles when placing the monitors on mixing consoles or similar mounting surfaces Attach the pad to the underside of the monitor in the following manner Thoroughly clean...

Page 25: ...0K OHM 1 10W 1 RM 10 2001B R173 RES 2 21K OHM 1 10W 1 RM 10 2211B R174 RES 1 33K OHM 1 4W 1 RM 4 1331C R175 35 7K OHM 1 10 WATT 1 RM 10 3572B R176 RES 909 OHM 1 10W 1 RM 10 9090B R177 35 7K OHM 1 10 WATT 1 RM 10 3572B R178 30 1K RES 1 0805 RM 10 3012B R179 RES 2 0K OHM 1 10W 1 RM 10 2001B R18 RES 100K OHM 1 10W 5 RM 10 104B R180 RES 20 OHM 1 10W 5 RM 10 200B R181 RES 20 OHM 1 10W 5 RM 10 200B R182...

Page 26: ...AP 001UF 50V CYV 102 033 C48 CAP 001UF 50V CYV 102 033 C49 CAP 220PF 50V 5 CDS 221CAAA C5 047UF 50V CYV 473 033 C50 CAP 001UF CDS 102CBAA C51 047UF 50V CYV 473 033 C52 CAP 120PF CDS 121CAAA C53 CAP 1UF 50V CYV 104 033 C54 CAP 47PF 50V 5 CDS 470CAAA C55 CAP 001UF 50V CYV 102 033 C56 CAP 001UF 50V CYV 102 033 C57 CAP 1UF 50V 10 CDS 104CBBB C58 CAP 1UF 50V 10 CDS 104CBBB C59 CAP 47PF 50V 5 CDS 470CAA...

Page 27: ...STR MMBT3904LT1 NPN SS 0792 U1 OPAMP TL072CD SS 143SM U112 OPAMP TL072CD SS 143SM U2 OPAMP TL072CD SS 143SM U3 OPAMP TL072CD SS 143SM U4 OPAMP TL072CD SS 143SM U5 COMPTR QUAD LM339 SS 730SM U7 OPAMP TL072CD SS 143SM U8 OPAMP TL072CD SS 143SM DS1 SW SIDE ACT DIP 4 POS SW 1649 DS12 SW SIDE ACT DIP 4 POS SW 1649 DS4 SW SIDE ACT DIP 4 POS SW 1649 DS8 SW SIDE ACT DIP 4 POS SW 1649 J1 CONN XLR NEUTRIK N...

Page 28: ...iver Q25 Bias Adjust R11 Q29 Pre Driver Q26 Driver Signal Q23 Q22 Current Source Q21 Protection Switch Soft Start Delay Q24 C70 R13 Differential Amp Q27 Q28 CMRR Adjust R58 Positive Input Buffer U8A Current Mirror Q10 Q19 Feedback Networks DC Offset Integrator U8B C76 R146 Negative Input Buffer U1B Local Feedback C51 R142 Output ...

Page 29: ...d drive current and drive the positive output MOSFET Q20 The same is true for buffer transistors Q31 and Q33 and negative output MOSFET Q4 CALIBRATION WARNING Only a competent technician should attempt the following procedure Bias The bias control establishes the quiescent Class AB output current of the amplifier The bias should not need readjustment from the factory setting however if the amplifi...

Page 30: ...signal at U1A pin 1 and U1B pin 7 connects to a 2 stage 39µs delay using U3A and U3B This is followed by the high frequency shelf circuit at U7B Switches DS13 DS16 add various reactive components to the feedback network of U7B resulting in 4dB 2dB 2dB or 4dB of gain shelving above 5kHz The next stage at U7A is a 3 2kHz 2nd order high pass filter The last stage consists of another 3 2kHz 2nd order ...

Page 31: ...5 Comparator U5B Soft Start Switches Q8 Q24 CLIP THERMAL Indicator CR3 Thermal Protection The thermal protection is activated and shuts down audio operation when the amplifier heatsink reaches an excessively high temperature The voltage divider R22 and R23 establishes the reference voltage on pin 5 of U5B The control voltage on pin 4 is established by the voltage divider TS1 and R25 TS1 is a NTC N...

Page 32: ...ts comparator low and light the CLIP THERMAL indicator red On Indicator The bicolor LED CR3 will remain green unless a THERMAL or CLIP condition is detected The outputs of comparators U5A and U5D will be high and Q35 will be off allowing current to flow through the green LED of CR3 from ground to 17V Qualified Service Personnel Only CLIP THERMAL Indicator CR3 Clipping Detectors U5A U5D Drive Signa...

Page 33: ...he replacement tweeter into wave guide 8 Snap the tweeter into wave guide 9 Follow steps 1 5 in reverse order to install wave guide assembly CAUTION Reconnect wires as indicated in each diagram Wave Guide Assembly FIG 1 LED Harness FIG 2 Tweeter Replacement SPK10424 FIG 3 Power Switch WOOFER REPLACEMENT FIG 4 Woofer Replacement 1 Remove 4 screws from woofer using a 3 32 Allen Wrench 2 Remove woofe...

Page 34: ...M6 250V T3A 115 V 60 HZ WARNING DO NOT REMOVE COVER TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE RISK OF ELECTRIC SHOCK DO NOT OPEN 4 2 0 2 4 dB Bass Shelving SELECT ONE Treble Shelving SELECT ONE RCA Unbal 1dBu 2dBu 5dBu 8dBu 11dBu 30Hz 60Hz 4dB 2dB 2dB 4dB 4dB 2dB 2dB 4dB Bass Roll Off SELECT 30Hz OR 60Hz 30Hz 60Hz 140W Max CAUTION Remove only the...

Page 35: ...ler or an Authorized Hafler service center 3 Any product purchased outside the United States please contact your local dealer 4 Shipping charges to get the unit to Hafler 5 Any product which has had the serial number defaced altered or removed Limit on Implied Warranties Any implied warranties including warranties of fitness for use and merchantability are limited in duration to the period of the ...

Page 36: ...A This product is designed developed and assembled in the USA by a dedicated group of American workers The majority of the components used in the construction of this product are produced by American companies However due to the global nature of their manufacturing facilities and the electronics parts industry in general some parts may be manufactured in other countries ...

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