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Punkyclown's picture
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Joined: 2017 Nov 9
Powerbook 180c display

Hi All, your friendly neighborhood questioner. Can someone diagnose the issue here with
the display on my 180C? Would be much appreciated.
Brad Hansen

Okay this seemed to work... https://ibb.co/mR47cw

Thanks or all the good advice.

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MacTouch's picture
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Joined: 2016 Mar 19

Hi,

Just click on Textual smileys, then use the first HTML tag to create a link to your page. Smile

24bit's picture
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Joined: 2010 Nov 19

You might try a free picture service like imgbb and insert your pict as HTML preview:
Example (Lisa emulator for OSX):

Example

MikeTomTom's picture
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Joined: 2009 Dec 7

Upload your pic to some free site and put a link to the pic in your post. For example https://imgbb.com/

Adding links in your post goes like this:

<img src="the/link/to/your/screenshot/Your-pix-name.jpg">

You can, before you save your post, click the "Preview" button to see what it looks like. If it's way too big, you can use scaling to get it to fit. For example:

<img src="the/link/to/your/screenshot/Your-pix-name.jpg" height="142" width="374">

Tho' it may be simpler to manually re-scale images down in size before uploading. Sites like imgbb might auto-add scaling for you anyway, or better, a preview link to the full sized pic.

MikeTomTom's picture
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Joined: 2009 Dec 7

Punky - see near the bottom left on that page you linked to at ibb.co, the words "Embedded Codes". Click that and it reveals the HTML code to use as links in your post.

Here I chose HTML Thumbnail image (linked) and pasted it into this post.
180c display

I can't see the issue tho' you have a clock showing but what's the problem? Is it the horizontal lines? I thought the lines might just be horizontal scan lines you see on some screens when taking photo's of them. Something else?

Punkyclown's picture
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Joined: 2017 Nov 9

Tom, yes it's the horizontal lines they are always on the screen, flickering, and causing the
the brightness to flicker as well. Sometime the screen jiggles... That's it,
Thanks...

MikeTomTom's picture
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Joined: 2009 Dec 7

According to the Apple Service Source manual for the PowerBook 165/180c, it states:

Row or partial row of pixels never comes on or is always on

  • Check cables.
  • Replace display cable.
  • Replace interconnect board.
  • Replace display (CPRC/international repairers only).

Meaning, check each step in turn until fixed. The worst case ends in replacing the display.

Punkyclown's picture
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Joined: 2017 Nov 9

Tom, thanks so much for this...
Brad Hansen

MikeTomTom's picture
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Joined: 2009 Dec 7

YW. Whatever the problem turns out to be, that PDF manual will be helpful to you in taking the PB apart, and diagnosing symptoms, etc.

galgot's picture
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Joined: 2014 May 7

Could be bad capacitors inside the display assembly. In that case needs to be replaced.
had one like that, see here :
https://68kmla.org/forums/index.php?/topic/25205-galgots-new-stuff/&page=2