32-3009.fm Page 19 Tuesday, August 10, 1999 8:31 AM

TROUBLESHOOTING

With proper care and handling, your mixer should give you years of trouble-free service. However, if your SSM-1250 is not working properly, follow these sugges- tions to see if you can eliminate the problem. If you cannot, take the mixer to your local RadioShack store for assistance.

Problem

Possible Solution

 

 

 

 

Nothing works

Check the AC power connection and make sure the AC

 

outlet is “live.”

 

 

 

Check all the connections to the system (amplifier/

 

receiver, input sources, and so on).

 

 

 

Check the fuse. See “Replacing the Fuse” on Page 21.

 

 

No signal from an audio

Make sure the OFF/ON/TALKOVER switch is not set to

input source

TALKOVER.

 

 

 

Check the mixer’s and the source’s control settings.

 

 

 

Check the connection between the mixer and the input

 

source.

 

 

Hum from PHONO

Make sure the turntable’s ground wire (usually black or

sources

green) is connected to the GND screw on the back of

 

the mixer.

 

 

Hum from other input

Make sure there are no low-level inputs connected to

sources

the LINE input jacks.

 

 

Feedback “squeals”

Move the microphone further away from the output

 

speakers or use a unidirectional microphone.

 

 

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Optimus 32-3009, SSM-1250 owner manual Troubleshooting, Problem Possible Solution