I am the original owner of an Apple II Plus with 16K expansion card. I recently revived my Apple II Plus after placing the system in storage in the 1980's. I can run machine language and integer BASIC (after loading integer BASIC) programs, but not Applesoft programs. When I try to run an Applesoft program, the system does nothing (no noise from the disk drive, no response on the screen). ]PRINT "HELLO" works, but ]PRINT 1 or ]PRINT 3+4 do not (no response). In integer BASIC, >PRINT 1 or >PRINT 3+4 work. I tried removing and reinserting the ROMs. I have the following ROMs:
ROM F8 341-0020-00 Apple 1978
ROM F0 341-0015-00
ROM E8 341-0014-00 Apple 1978 Microsoft 77
ROM E0 341-0013-00 Apple 1978 Microsoft 77
ROM D8 341-0012-00 Apple 1978 Microsoft 77
ROM D0 341-0011-00 Apple 1978 Microsoft 77
Any suggestions as to what the problem may be and how I can fix it?