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| Adjusting width of CRT picture |
Posted by: mloret on 2022-02-24 09:55:01
Hello. I recently installed a new analog board in my Mac 128k and the picture on the screen is too narrow. I need to adjust the width. However, I have never adjusted a CRT and I have not been able to find a good YouTube. I have read online that it can be a fraught process. I have some chopsticks I was planning to mold to fit. Question--should I undertake this or just leave it? |
Posted by: Johnnya101 on 2022-02-24 10:06:31
All depends on what you want it to look like. There is the "correct" size, and what you like. I like mine to be set to the factory size, which has a black border around the image. How wide is your image? It is super easy to change it. |
Posted by: mloret on 2022-02-24 10:17:59
I guess what I'm wondering is whether I'm risking my life or in danger of destroying the computer. 🙂 I haven't messed with a CRT before. |
Posted by: Johnnya101 on 2022-02-24 10:26:54
Nah, you'll be fine. Just don't touch anything behind the analog board and don't use anything conductive and you'll be fine. While it's on, just rotate the width pot a little, I think it's to the right to expand it? |
Posted by: bibilit on 2022-02-24 10:30:15
If you don’t mess around with your bare fingers or metal, don’t bother too much.
The analog B is protected with a plastic shield so adjusting is pretty straightforward. |
Posted by: mloret on 2022-02-24 10:58:35
Okay. The adjustments are done on the side of the analog board with the plastic shield then, not the side with the caps, transformers, etc? Just making sure. |
Posted by: Johnnya101 on 2022-02-24 11:01:37
Yes |
Posted by: mloret on 2022-02-24 11:12:43
Got it. I appreciate the guidance. |
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