Willem PCB PCB50a doen't work
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- Сообщения:6
- Зарегистрирован:Пн июн 24, 2013 9:52 pm
Hi guys,
iam working with the lpt version of willem pcb and have pcb revision 50a.
I used this device for 6 years and today it doesnt work.
Yesterday i solder a tsop 29F032 flashchip and want test the ID.
From this moment the willem recognized nothing. I have different adapters like for 27C322,29F032 TSOp 40 and also us 27c801 eproms.
X-Test with other pc and usb cable -> same issue
X-Test with other lpt calbe -> not tried yet.
The function "Test hardware" works sometimes with other settings, but the most of the time i got the "Hardware error"...
I think any part of the pcb could be broken, but which?
Which parts are responsible for detecting the hardware, energie and so on?
I hope anyone could help
Thanks.
red
iam working with the lpt version of willem pcb and have pcb revision 50a.
I used this device for 6 years and today it doesnt work.
Yesterday i solder a tsop 29F032 flashchip and want test the ID.
From this moment the willem recognized nothing. I have different adapters like for 27C322,29F032 TSOp 40 and also us 27c801 eproms.
X-Test with other pc and usb cable -> same issue
X-Test with other lpt calbe -> not tried yet.
The function "Test hardware" works sometimes with other settings, but the most of the time i got the "Hardware error"...
I think any part of the pcb could be broken, but which?
Which parts are responsible for detecting the hardware, energie and so on?
I hope anyone could help
Thanks.
red
Re: Willem PCB PCB50a doen't work
What are Test H/W results ? Start with Vcc and Vpp activation. Are LEDs on ?
What power supply used (USB or external) and it selection jumper status ?
What power supply used (USB or external) and it selection jumper status ?
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- Сообщения:6
- Зарегистрирован:Пн июн 24, 2013 9:52 pm
Re: Willem PCB PCB50a doen't work
hi Ezo,
thanks for your feedback.
Teh H/W Test said "Hardware error: Check connections"
The VPP LED is on, the VCC only a little bit.
I have tested the usb power and ac adapter. Same problem.
One day before the eprome goes off the VCC LED was complete on, so i think some part is defective?!
Thanks
red
thanks for your feedback.
Teh H/W Test said "Hardware error: Check connections"
The VPP LED is on, the VCC only a little bit.
I have tested the usb power and ac adapter. Same problem.
One day before the eprome goes off the VCC LED was complete on, so i think some part is defective?!
Thanks
red
Re: Willem PCB PCB50a doen't work
Check Vcc switch transistor BC557/BC327
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- Сообщения:6
- Зарегистрирован:Пн июн 24, 2013 9:52 pm
Re: Willem PCB PCB50a doen't work
This was the first thing what i want to replace.
I have ordered revision PCB50b and will use this part for a test.
I give feedback asap i can!
If i want replace this part, could you check which part is the right for the willem?!
For BC557
http://www.reichelt.de/BC-Transistoren/ ... nr=BC+557A
http://www.reichelt.de/BC-Transistoren/ ... nr=BC+557B
http://www.reichelt.de/BC-Transistoren/ ... nr=BC+557C
Thanks
For BC327
http://www.reichelt.de/BC-Transistoren/ ... =BC+327-16
http://www.reichelt.de/BC-Transistoren/ ... =BC+327-25
http://www.reichelt.de/BC-Transistoren/ ... =BC+327-40
red
I have ordered revision PCB50b and will use this part for a test.
I give feedback asap i can!
If i want replace this part, could you check which part is the right for the willem?!
For BC557
http://www.reichelt.de/BC-Transistoren/ ... nr=BC+557A
http://www.reichelt.de/BC-Transistoren/ ... nr=BC+557B
http://www.reichelt.de/BC-Transistoren/ ... nr=BC+557C
Thanks
For BC327
http://www.reichelt.de/BC-Transistoren/ ... =BC+327-16
http://www.reichelt.de/BC-Transistoren/ ... =BC+327-25
http://www.reichelt.de/BC-Transistoren/ ... =BC+327-40
red
Re: Willem PCB PCB50a doen't work
preferable BC327-40
Check voltages on pins with old transistor, Test H/W Vcc-On and Vcc-off
Are you sure here is no short in Vcc line (programmer lines , adapter) ?
Check voltages on pins with old transistor, Test H/W Vcc-On and Vcc-off
Are you sure here is no short in Vcc line (programmer lines , adapter) ?
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- Сообщения:6
- Зарегистрирован:Пн июн 24, 2013 9:52 pm
Re: Willem PCB PCB50a doen't work
The VCC led could set off and on in testmode.
Will test the transistor and give feedback asap.
Iam sure that is note a short on vcc
thanks
red
Will test the transistor and give feedback asap.
Iam sure that is note a short on vcc
thanks
red
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- Сообщения:6
- Зарегистрирован:Пн июн 24, 2013 9:52 pm
Re: Willem PCB PCB50a doen't work
hi Ezo,RedScorpion писал(а):The VCC led could set off and on in testmode.
Will test the transistor and give feedback asap.
Iam sure that is note a short on vcc
thanks
red
i have change the two parts and willem works again.
thanks for you help
red