MCUmall EPROM BIOS Chip Burner Forum
MCUmall EPROM BIOS Chip Burner Forum
Home | Profile | Register | Active Topics | Members | Search | FAQ
Username:
Password:
Save Password
Forgot your Password?

 All Forums
 MCUmall Forums
 Open Source Project Willem Programmer Hardware
 Enhanced Willem Chips
 New Topic  Reply to Topic
 Printer Friendly
Author Previous Topic Topic Next Topic  

satellites101

4 Posts

Posted - 09/05/2005 :  18:35:48  Show Profile  Reply with Quote
Can anyone tell me what the chips are on the enhanced willem eprom programmer? I have this programmer, and would like to know what chips are on the board in case I need a replacement. Any information will be greatly appreciated. Thanks in advance.

satellites101
Reply #1

usb

138 Posts

Posted - 09/05/2005 :  21:45:07  Show Profile  Reply with Quote
The main par of the Enhanced willem is same as the Willem PCB3B programmer. You can refer to the PCB3B schematic, and find out those chips easily.
There is a PAL logic chip located at the right side of ZIF(20 pin DIP), it may be PAL16V8. Also,the LED selection chips should be CD4017.
Go to Top of Page
Reply #2

satellites101

4 Posts

Posted - 09/16/2005 :  05:48:06  Show Profile  Reply with Quote
Thanks for the information. Could you tell me what the 14 pin chip located to the right of the USB power port is? It is mounted horizontally and is also right beside the capacitors behind the power port and directly below the first couple of leds. Also, the other 14 pin chip located right beside the zif 32 on the right side, next to the 20 pin chip? Any information will be greatly appreciated. Thanks in advance.

satellites101
Go to Top of Page
Reply #3

usb

138 Posts

Posted - 09/20/2005 :  10:37:53  Show Profile  Reply with Quote
I'm not sure. My impression thay are CD4017.
Go to Top of Page
  Previous Topic Topic Next Topic  
 New Topic  Reply to Topic
 Printer Friendly
Jump To:
MCUmall EPROM BIOS Chip Burner Forum © Copyright 2003 - 2009 Mcumall Electronics Inc. Go To Top Of Page
Generated in 0.08 sec. Snitz Forums 2000