Hoping someone can help me with a no sound joust.
Have no sound at all. does not play any sound when the diagnostic sound board button is push.
went thru diagnostic checklist.
getting 10v at TP1 and pin 5 IC1
Getting 5 v where I should be
power supply is giving 11.7 v @ power supply and 11.4 at header pin on sound card
did the test for volume pot and speaker and test ok
did test for analog section and test results as should be.
Check data lines from rom to sound board both at rom board and sound board and data is behaving as should.
Is 10v to low to fire sound board?
Cap problem?
is it a rom (ic12), PIA, or some other IC problem.
Any help is appreciated.
Trissa
Have no sound at all. does not play any sound when the diagnostic sound board button is push.
went thru diagnostic checklist.
getting 10v at TP1 and pin 5 IC1
Getting 5 v where I should be
power supply is giving 11.7 v @ power supply and 11.4 at header pin on sound card
did the test for volume pot and speaker and test ok
did test for analog section and test results as should be.
Check data lines from rom to sound board both at rom board and sound board and data is behaving as should.
Is 10v to low to fire sound board?
Cap problem?
is it a rom (ic12), PIA, or some other IC problem.
Any help is appreciated.
Trissa
