Jump to content
francouai

Lynx2 No Boot

Recommended Posts

Hello guys,


I recently bought two brand new boxed Atari Lynx 2.

But with dead condition. (no boot, no screen, no LED, no noise, NOTHING!)

I changed all Caps, MOSFET Q12, Zener diode D13, Transistors Q7/Q8 and R78 Resistor.

I was very confident after the work...

 

But all these changes did not fix the dead condition.

The controller ribbon looks fine, I also did a short cut on PIN 6/7 to avoid any ribbon problem..

 

Any idea what to change will be great.

Share this post


Link to post
Share on other sites

Connect +5 directly to the + and - sides of cap C41 to provide power to the lynx and completely bypass the power stage. But you have to make sure you are providing right at +5 to prevent damage to any of the IC due to over voltage. With a cartridge inserted, it will power straight on and at least let you know if the rest of the logics are good and allow you to focus totally on the power input stage.

 

Share this post


Link to post
Share on other sites
10 minutes ago, francouai said:

sound good.

If no power up on C41, what can be to problem ?

At that point you have to start tracing how far the power is getting and check to see if the ICs are getting power where needed.

 

 

Share this post


Link to post
Share on other sites

This morning, I have connected +5volts on C41.

I'm getting White screen but no activity (no picture/sound)

 

Share this post


Link to post
Share on other sites

need to find someone to be able to fix 3 Lynx2 motherboards...

or at least do 1 working with the 3 :)

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...

  • Recently Browsing   0 members

    No registered users viewing this page.

×
×
  • Create New...