background image

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 product’s

enclosure that may be of sufficient magnitude 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 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 near 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 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 grounding 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 / IEC 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 the 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 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 circuitry 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 

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 contained in the 
Operating Instructions unless you are qualified to do so. Refer all servicing to 
qualified service personnel.

1-2

Содержание Precision P3000

Страница 1: ...P3000 PRECISION SERIES SERVICE MANUAL...

Страница 2: ...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 and the CSA E65 94 have to be obeyed when servicing the a...

Страница 3: ...ive circuit For the so called soft start the power outputs are switched on delayed via relays An inrush current limiter circuit prevents the mains fuses from being blown Maximum precision is also guar...

Страница 4: ...at our option without charge The 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 i...

Страница 5: ...DIMENSIONS BLOCK DIAGRAM...

Страница 6: ...annel BRIDGED 0 dBu 6 dBu 13 dBu 2400 W 8 Channel BRIDGED 2 dBu 4 dBu 11 dBu 3000 W 4 Maximum input level 21 dBu C OUTPUT PROPERTIES nominal output power with THD 0 1 20 Hz 20 kHz MBW 80 kHz maximum o...

Страница 7: ...DIM 100 0 01 3 15 kHz 15 kHz J CROSSTALK at f 1 kHz less than 70 dB K DAMPING FACTOR internal at f 1 kHz 300 at f 100 Hz 400 L SLEW RATE internal 40 V s M NOISE INTERFERENCE U F external voltage un w...

Страница 8: ...3 15V 3 15 V 4 Hot Out 4 GND 4 Fan voltage 5 BIAS Cold Side 5 15 V 5 Service Fan Switch 6 BIAS Cold Side 6 heat sink temperature A B 6 Service Fan Switch 7 GND 7 U1 front end A 7 U1 front end B 8 flo...

Страница 9: ...ort circuited pins CNASERV 2 and CNASERV 3 for the power amplifier A or short circuited pins CNBSERV 2 and CNBSERV 3 for the power amplifier B 4 4 ADJUSTING THE METER INSTRUMENTS level control set all...

Страница 10: ...en CNBSERV 5 and CNBSERV 6 allows for testing the functioning of the fans During operation CNASERV 6 can be utilized to monitor the temperature of the heat sink FAN SPEED U DC CNASERV 6 U DC CNBSERV 4...

Страница 11: ...aralleled at the input Both channels can be driven using a common signal source 8 Level BRIDGED MODE set the level control all the way to its fully clockwise position HI LOW CUT switch is ON as factor...

Страница 12: ...erference voltage Equivalent input interference level Residual interference output voltage U F 615 V 101 dB 6 9 V 101 dBu 435 V U G 3 65mV 85 5 dB 41 V 85 5 dBu 1 55mV U A 490 V 103 dB 5 5 V 103 dBu 3...

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Страница 19: ......

Страница 20: ...KABEL NETZ BEARB AUS 348951 mains cable USA 352268 STECKER NETZ 30A UL CSA mains connector 30amp US 349846 KABEL KONFEKT 8POL 0 680M ribbon cable assy 8way 349847 KABEL KONFEKT 10POL 0 800M ribbon ca...

Страница 21: ...1N 4148 AXIAL diode 1N 4148 D0002 307916 DIODZ BZX 55C 7V5 0 50W diode zener 7V5 D0003 301254 DIODE 1N 4148 AXIAL diode 1N 4148 D0004 307916 DIODZ BZX 55C 7V5 0 50W diode zener 7V5 D0005 301254 DIODE...

Страница 22: ...2SA 1837 transistor 2SA 1837 Q0041 351982 TRANS MJL 1302 A transistor MJL 1302 A Q0042 331658 TRANS MJ 15023 transistor MJ 15023 Q0043 331658 TRANS MJ 15023 transistor MJ 15023 Q0044 331658 TRANS MJ 1...

Страница 23: ...C 1011 120 C 5 safety component PTC R0200 348966 WI SO NTC B57164 K101 J 52 safety component NTC R0201 348966 WI SO NTC B57164 K101 J 52 safety component NTC VR001 348674 WI TRI 250 00 OHM LIN pot tri...

Страница 24: ...ER 4 8 0 5 connector 4 8mm faston CN18B 343516 FL STECKER 4 8 0 5 connector 4 8mm faston CN19A 343516 FL STECKER 4 8 0 5 connector 4 8mm faston CN19B 343516 FL STECKER 4 8 0 5 connector 4 8mm faston C...

Страница 25: ...20MF 63V 5 cap mylar 220nF C0213 335787 KO KER 15 0PF 100V 2 cap ceramic 15pF C0214 329021 KO KER 0 10MF 100V 20 cap ceramic 100nF C0215 329021 KO KER 0 10MF 100V 20 cap ceramic 100nF C0216 304349 KO...

Страница 26: ...BZX 79 B 6V8 0 50W diode zener BZX 79 6V8 D0101 334321 DIODZ BZX 85C 15V 1 30W diode zener BZX 85C 15V D0102 301254 DIODE 1N 4148 AXIAL diode 1N 4148 D0103 301254 DIODE 1N 4148 AXIAL diode 1N 4148 D0...

Страница 27: ...2 P 2FACH OP IC NE 5532 N I0301 327197 IC NE 5532 P 2FACH OP IC NE 5532 N I0302 327197 IC NE 5532 P 2FACH OP IC NE 5532 N I0600 331340 IC TL 072 CP 2FACH OP IC TL 072 CP I0700 331340 IC TL 072 CP 2FAC...

Страница 28: ...or MJE 340 Q0128 348421 TRANS 2N 3906 transistor 2N 3906 Q0129 335763 TRANS 2N 3904 transistor 2N 3904 Q0141 348421 TRANS 2N 3906 transistor 2N 3906 Q0142 348421 TRANS 2N 3906 transistor 2N 3906 Q0201...

Страница 29: ...HM K safety resistor 10 Ohm R0040 301674 WI SCH 10 00 OHM 2 00W 5 resistor 10 Ohm 2watt R0043 301674 WI SCH 10 00 OHM 2 00W 5 resistor 10 Ohm 2watt R0144 332306 WI SCH 3 30 KOHM 2 00W 5 resistor 3 3k...

Страница 30: ...POL connector male 8 pin C0001 348458 KO EL 2200 000MF 160V 20 cap electrolytic 2200uF 160 C0002 348458 KO EL 2200 000MF 160V 20 cap electrolytic 2200uF 160 C0003 348458 KO EL 2200 000MF 160V 20 cap e...

Страница 31: ...electrolytic 2200uF 160 C0004 348458 KO EL 2200 000MF 160V 20 cap electrolytic 2200uF 160 C0005 348458 KO EL 2200 000MF 160V 20 cap electrolytic 2200uF 160 C0006 348458 KO EL 2200 000MF 160V 20 cap e...

Страница 32: ......

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