Sample page from Rivera R100
Contents
1. INPUTS Q HIGH LOW GAIN GAIN QuIcK TROUBLESHOOTING GUIDE Amp wont turn on 1 M ake sure that the AC mains cord is securely connected at both ends 2 Verify the power source with something that you know works a radio alight etc 3 Check the M ains Fuse and replace it if necessary if it blows again refer your amp to qualified service per sonnel T here s no sound 1 M ake sure that the guitar cord to the input is okay wiggle it check your guitar s volume setting too 2 Check the Volume controls 3 Check the Standby switch 4 If an effect or signal processor is plugged into the Effects Loop make sure it s turned on and that the level controls on the amp and processor are set correctly 5 Check the speaker cable or cables to see if they are disconnected or shorted 6 Check for blown speakers 7 If a fusis blown replace it if it blows again refer your amp to qualified service personnel T he amp shuts down unexpectedly 1 Follow the seven steps in the T heres no sound section 2 Turn off the amp and wait 25 minutes before turning it on again An internal thermal protection circuit can shut the amp down if it becomes overheated 3 After 25 minutes turn it on and if it shuts down again refer the amp to qualified service personnal Note On SEMKO 230 volt models there are two additional T 1 6A 250 volt Slo Blo type 5mm x 20mm fuses and one T 10A 250 volt Slo Blo type 5mm x 20mm fus2. e located internally These protect the amp s output tube filaments and should only be replaced by qualified service personna T heres unwanted distortion 1 Check the speaker 2 Check the cables 3 Check the signal level at other devices in the signal path 4 One or more tubes may be bad refer to the tube information on page 17 or take your amp to qualified service personnel
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