problems with PIC burner

[cimo]

hallo

i really can t get the pic burner to work.

the 100R test goes right

i am using 2X 9 volts batteries to supply the whole thing

my compy is a 1000Mhz PIII

the red led is always on

i can only trig the data led from within the application

i am using cheap 7414 (no hc) can that be a problem?

any idea?

simone

[TK.]

I remember that somebody else reported such an issue with 7414 (without HC) some time ago, so I think that this could cause the problem. 74HC14 is more tolerant against CMOS drivers, and your PC board is probably stuffed with such ones.

Best Regards, Thorsten.

[cimo]

..looking forward to desolder 7414s  :( , i am a guru now i don t use IC sockets  ::)

i will let you know how it goes tomorrow i am off for some fish bbq now...

[bugfight]

..looking forward to desolder 7414s  :( , i am a guru now i don t use IC sockets  ::)

...

cut those pins off first or risk lifting pads...

ok, you already knew that but maybe n00b didn't.

congrats on your new guru status, now fix all my stuff for me *whack*

[cimo]

i got some 74HC14 (no HCT) but the burner doesn t work.

When i plug the lpt cable the red led lights up, is this anormal?

When i plug the lpt cable without the supply connected, the red and green led light up but not so brightly as with the supply.This doesn t happen all the times ! it happens "sometime".

???

simone