stupid question, from were can i take the ground in order to measure.

You can take it from pin 8 on the CD4503, the shield on the printer connector, the shield on the USB connector, pin 16 of the ZIF socket, ...

 

ok i found it 5.42v

Enter the Test H/W tab, click on the OE, D0, and D4 pins on the picture of the ZIF socket.

Measure the voltage on pin 3 of both CD4503.

 

I mesured 3.20 v on pin 3 of the first cd4503, the other cd 4503 has 0v on pin 3

 

I mesured 3.20 v on pin 3 of the first cd4503, the other cd 4503 has 0v on pin 3

Power off the programmer and swap the two chips to see if the problem moves with the chip.

It's curious that you got a HIGH on either of the pins because you measured 0V for all data lines in the first test.

 

Swapped both 4503 ,selecting DO OE D4 mesuring pin 3 of achat 4503.
Same behavior.

 

Measuring pin 3 of each 4503 same result.

 

Sorry i made mistake after rechecking i ve noticed that the problem has moved with one of 4503 so after swapping both ICs result not same.

 

I ve got a d4503 from NEC
Do you thank u can replaced it?

 

I ve got a d4503 from NEC
Do you thank u can replaced it?

Yes.

I'm still curious why D0 or D4 worked, but not when all of the data lines were set HIGH.

Those chips are static sensitive, so take appropriate precautions.

 

So i can try replacing it with nec 4503 ?

 

I swapped the other 4503 same thing.

 

I swapped the other 4503 same thing.

Replace the original chip and set all data lines HIGH. Measure pins 3,5,7,9 of both CD4503. All pins should be HIGH.

Then measure the corresponding signals on the ZIF socket.

While you're at it, check all of the address lines. You probably have a problem with 4 data lines, but we might as well test the other logic.

 

How to set all data high ?

 

How to set all data high ?

In the Test H/W page, click on the D0-.D7 button as you did before. Measure the voltages for the data lines on the ZIF socket. For any that aren't HIGH, measure the corresponding pin on the CD4503.

For your convenience, I'm posting a schematic I redrew for the Willem 4.1. IC numbers will be different, but you can reference the pin numbers from a more readable schematic.

The schematic you had is one of the worst I've seen for a Willem type programmer (and the first I've seen that didn't use buses).

 

Excuse my ignorance but in h/w page there
Four do d7 which one should i click.

 

Ok i selected do->d7 i measured 4.75v on all zif pins.

 

Measured Pons 3 5 7 9 of both ICs
Have 4.75v

 

Ok i selected do->d7 i measured 4.75v on all zif pins.

What changed? Earlier you said you measured 0V on all pins.

Does the "Test Hardware" in the Help pull-down pass?

 

Same thing,nothing has changed.

 

I ve got good news
I ve figure it out, it was the sn 74hc54 which i ve replaced and it get recognized. Fortunately i have a spare.
Thanks for all your support dennis i been reading your posts at ezoflash for a years i appreciate your knowledge and expertise.