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
 PIC Programmer
 Enhanced JDM PIC programmer Circuit diagram
 New Topic  Reply to Topic
 Printer Friendly
Author Previous Topic Topic Next Topic  

elektron

1 Posts

Posted - 03/01/2009 :  21:40:42  Show Profile  Reply with Quote
Hello,

using the Enhanced JDM PIC programmer wit my Notebook i am on the limit betwen working and not working. Sometims it is working and sometimes not. In fact the voltage out of the serial port seams to be high enough but it looks like the current is much lower than an desktp PC because the LEDs are not as bright...
Now i am thinking in changing some components, i.e. to reduce the current for the two LEDs on the Programmer. I am thinking of changing resistors and if necessary using some of these very high efficiency LEDs. What are the components to chane? Is there a circuit diagram of this programmer?

Thank You,

Chris
Reply #1

ZLM

2923 Posts

Posted - 03/02/2009 :  22:53:05  Show Profile  Reply with Quote
First, the programmer have to work correctly with the desktop computer. The LED do not take much current, if you suspect that, you can just remove the LED first for trying. The PIC do not need much currently in programming mode.
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 0.11 sec. Snitz Forums 2000