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Index

Soldering point.

Male connector.

Female connector.

M/F faston connector.

Test point.

Supply voltage.

Logic supply ground.

Analog supply ground.

Chassis ground.

Earth ground.

Flag joined with one or more flags

GENERALMUSIC S.p.A. Sales Division: 47842 S.Giovanni in Marignano (RN) ITALY - Via delle Rose, 12 - tel. 0541/959511 - fax 0541/957404
GENERALMUSIC on the NET: http://www.generalmusic.com

Technical Specifications, Introduction, Test Procedures & Adjustments

2

Schematic Diagrams

4

Layout & Spare Part List

5

SERVICE  MANUAL

 CODE: 270232

Warnings

with the same signal name inscribed.

Address

ATTENTION

Observe precautions when handling electrostatic sensitive devices.

Notice

Service must be carried out by qualified personnel only.Any tampering carried out by unqualified personnel during the guarantee period
will forfeit the right to guarantee.
For a correct operation of the instrument, after having switched off, be careful to wait at least 3 seconds before switching on again.
To improve the device's specifications, the schematic diagrams may be subject to change without prior notice.
All components marked by this symbol have special safety characteristics, when replacing any of these components use only
manufacturer's specified parts.
The (µ) micro symbol of capacitance value is substituted by U.
The (

) omega symbol of resistance value is substituted by E. 

The electrolytic capacitors are 25Vdc rated voltage unless otherwise specified.
All resistors are 1/8

 unless otherwise specified.

All switches shown in the "OFF" position. All DC voltages measured to ground with a voltmeter 20KOhm/V.





Содержание Amp 2.4

Страница 1: ...d out by qualified personnel only Any tampering carried out by unqualified personnel during the guarantee period will forfeit the right to guarantee For a correct operation of the instrument after having switched off be careful to wait at least 3 seconds before switching on again To improve the device s specifications the schematic diagrams may be subject to change without prior notice All compone...

Страница 2: ...puts before RL1 set both to 20V div 200µS div Set up the Variac slowly monitoring the Outputs with the oscilloscope ch1 2 connected it should display the sinusoidal input signal amplified with no distortions if a distortion occur check the POWER AMPLIFIER boards as suggested in the ADVICES section If the protection trips turn off the amplifier wait some minutes and disconnect the supplies from the...

Страница 3: ...Protections Board Check Inputs Protections Board Check Inputs Protections Board Check These procedures are intended for one channel at a time repeat these operations for the other channel SETUP SETUP SETUP SETUP SETUP Connect the ch1 probe to amplifier input of the channel under test and set it at 500mV div 200mS div Connect the ch2 probe to amplifier output of the channel under test and set it at...

Страница 4: ... 4 4 4 4 4 ...

Страница 5: ...trolytic Bipolar Capacitor 110020 T5A Fuse 5x20mm EU 110003 T3 15A Fuse 5x20mm EU 080605 KBL02 6 4A 200V Rectifier Diode Bridge 080293 15V 1W 5 Zener Diode 060441 470E 5W 10 Resistor 030543 3300u 63V 20 Snap In Electrolytic Capacitor PHC727596 PHC727596 PHC727596 PHC727596 PHC727596 Power Amplifier Board Pcb 9610042 With Heatsink Power Amplifier Board Pcb 9610042 With Heatsink Power Amplifier Boar...

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