[Hallicrafters] RE; sr-400 problem

[Walt Cates]

As Jim said it is probably the length of the screws. The two in the rear compress the chassis lip in the rear of the rig. One of the screws in the front, if too long can make contact with the mic connector. You may also want to check the cover grounding tab to insure that it is contacting the plate between the pa final compartment and the relay compartment.
All else fails, turn it up on its side, turn it on, and mount the bottom cover one screw at a time until it keys up. 

Best Regards, Walt Cates, WD0GOF
 
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