Conference hydra::amiga_v1

3424.0. "need help for 500 not working correctly." by AIMHI::DEROO () Fri Feb 02 1990 15:45

    My 500 is acting up. It's a second hand machine that I have had about a
    month. Symptoms are as follows:
    
    1) Sometimes on power up the screen remains dark instead of the white
    background with a hand.
    
    2)after about a half hour of use a hissing / static sound strts and
    slowly gets louder....then rises and falls (if i rap a little on the
    top cover this sometimes seems to make it quiet or it could be
    coincidence. I hesitate to smack it good to find out) this continues
    indefintely.
    
    3) My only copy protected game seems to lock up frequently on disk
    access. Non protected disks access fine.
    
    Any thoughts / advice for a new user would be great.
    
    thanks-
    
    Ken 

    is that hissing / static sound coming from inside your 500 or from
    the speaker on your monitor?
    
    -Dave

    
    Not speaking from personal experience, I understand that many early
    A500s had a tendancy for the Fat Agnus chip to loosen in it's socket. 
    A reseating of the chip may be worth trying.
    
    Later models use a clip to retain the chip.
    
    Note:  I wouldn't recommend knocking or dropping the computer to try to
    reseat the chip.
    
    Ed.

    The sound is definitely coming from the speaker. I guess I will need to
    open it up soon and try reseating the chips. 
    
    On another subject entirely.....Are the Abacus books the best source of 
    amiga information or just the most common?
    
    Thanks-
    
    ken