Ashly SRA-120 Operating Manual Download

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ASHLY AUDIO INC.

847 Holt Road Webster, NY 14580-9103 Phone: (716) 872-0010

Toll-Free: (800) 828-6308 Fax: (716) 872-0739 Internet: http://www.ashly.com/

SRA-120

Power Amplifier

Operating Manual

SRA-120

Sig. Clip

SRA-120
Stereo
Power Amplifier

Protect

Sig. Clip

Stereo

Headphones

Channel 1

(M ono)

Channel 2

Power

Channel 2

Protect

Level (dB)

-1

-3

-6

-10

-20

-1

-3

-6

-10

-20

Summary of Contents for SRA-120

Page 1: ...0 828 6308 Fax 716 872 0739 Internet http www ashly com SRA 120 Power Amplifier Operating Manual SRA 120 SRA 120 Sig Clip SRA 120 Stereo Power Amplifier Protect Sig Clip Stereo Headphones Channel 1 Mo...

Page 2: ...2 Cooling 5 5 3 Grounding 5 5 4 Security Cover 5 6 FRONT PANEL FEATURES 6 6 1 Power Switch 6 6 2 Level Controls 6 6 3 Signal Present Indicators 6 6 4 Clipping Indicators 6 6 5 Protect Indicators 6 6...

Page 3: ...THEORY 10 10 TROUBLESHOOTING TIPS 10 10 1 No Sound 10 10 2 Distorted Sound 10 10 3 Excessive Hiss Noise 11 10 4 Excessive Hum Noise 11 11 DIMENSIONS 11 12 SPECIFICATIONS 12 13 WARRANTY POLICY 12 14 S...

Page 4: ...written claim to cover the damages can be initiated The right to any claim against a public carrier can be forfeited if the carrier is not notified promptly and if the shipping carton and packing mat...

Page 5: ...conductor cable 5 RACK MOUNTING REQUIREMENTS 5 1 Mechanical All Ashly amps are designed to fit in standard 19 inch racks Avoid placing the amp immediately next to devices which are sensitive to heat...

Page 6: ...ER SERVICING TO QUALIFIED SERVICE PERSONNEL TO REDUCE THE RISK OF FIRE REPLACE ONLY WI TH SAME TYPE FUSE TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE A...

Page 7: ...gnal Input Ground The CHASSIS GROUND terminal is internally connected to the chassis the AC earth ground and the power amplifier s signal ground The INPUT GROUND terminal is tied to the 1 4 jack s sle...

Page 8: ...nnel 1 output is switched out of phase with it s input In BRIDGED mode the channel 2 red bind ing post becomes the in phase speaker output terminal and the channel 1 red binding post becomes the out o...

Page 9: ...in the maximum amount of power when amplifying a mono signal In this mode the channel 1 input feeds both sides of the amp but the phase of channel 1 is inverted so the voltage difference between the c...

Page 10: ...tput level meters indicate 0dB level red CLIP LED on Amplifier is being clipped Reduce the signal level at the signal source 10 TROUBLESHOOTING TIPS 10 1 No Audio Output Power switch is on but not ill...

Page 11: ...source which feeds into the amplifier If excessive hiss noise is still heard then a noisy signal is being fed into the SRA 120 Isolate which piece of equipment in the audio chain is causing the noise...

Page 12: ...C 50 60Hz 240V Available 12 14 Shipping Weight 20 lbs Specification conditions are 120VAC 60Hz at 25 C 13 WARRANTY POLICY We thank you for your expression of confidence in Ashly products The unit you...

Page 13: ...13 Operating Manual SRA 120 Power Amplifier 14 SCHEMATICS Figure 15 1 SRA 120 Block Diagram and Wiring Diagram...

Page 14: ...Operating Manual SRA 120 Power Amplifier 14 Figure 15 2 SRA 120 Channel One Schematic Diagram...

Page 15: ...15 Operating Manual SRA 120 Power Amplifier Figure 15 3 SRA 120 Channel Two Schematic Diagram...

Page 16: ...ing Manual SRA 120 Power Amplifier ASHLY AUDIO INC 847 Holt Road Webster NY 14580 9103 Phone 716 872 0010 Fax 716 872 0739 Toll Free 800 828 6308 Internet http www ashly com 1997 by Ashly Audio Corpor...

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