I have a 100w fender twin amp ,it turns on but no sound . tubes look fine , two lights in the back of the amp go on (v9 & v11 trouble) & (v10 &v12 trouble) . Before the volume on the amp would drop on & off . ?????
Here is a test you can do at home for the sound. Test out the speaker. To do this you will need two alligator clips with wire about ft. long. Remove the speaker wire clips under the speaker magnet and attach the alligator clips . Take a C size battery and touch both ends of the battery. You should here a scratching sound . If you do you know your speaker is OK. Then you have a problem that needs a Technician. A good music shop should be able to give you a idea of the repair cost. Don't go to a big music change, find a small full service shop that deals with Fender. I don't think this will cost a lot. Fenders play for years, Its truly worth the bench fee. Good luck DFD , please rate me thanks
Check the fuses ,there should be a fuse for the power switch
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My amp was doing the same thing, the sound would drop on and off. then the sound wouldnt come through, now it doesnt even turn on. not sure what the problem is.
Many newer Fender (reissue) amps have poor solder joints. First, be sure your "Standby" switch is good. Then, have a skilled technician resolder every connection they can get to, especially the ones in the power supply.
Replace output valves and set up the bias
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