My 21" Apple Studio Display (Blueberry - CRT) Restoration Project
#41
RE: My 21" Apple Studio Display (Blueberry - CRT) Restoration Project
(05-25-2025, 08:14 PM)Irinikus Wrote:  Here's the G3 B&W setup: (Now all I need is the matching Keyboard and Mouse to complete the setup!)

[Image: JhPvEpT.jpg]
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05-28-2025, 12:56 PM
#42
RE: My 21" Apple Studio Display (Blueberry - CRT) Restoration Project
Did you ever find a matching schematic? Sony F520 (chassis CR1) maybe?

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05-29-2025, 08:14 PM
#43
Irinikus
(05-29-2025, 08:14 PM)robespierre Wrote:  Did you ever find a matching schematic? Sony F520 (chassis CR1) maybe?

Unfortunately not.

I'v got the service manual for the SONY GDM-C520K. It's similar to this monitor in some ways, but it's not the same.
(This post was last modified: 05-30-2025, 11:04 AM by Irinikus.)
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05-30-2025, 08:50 AM
#44
RE: My 21" Apple Studio Display (Blueberry - CRT) Restoration Project
I currently have the monitor setup with my G3 Beige, as it's running OS9.2:

[Image: AC4ECEC5-A374-493E-A579-661499542C1A.jpg?m=1751872613]

The Apple USB Display Service Utility only runs in OS9, and I now have it installed, allowing me to make fine adjustments to the screen when I get around to giving it a full tuneup in the future:

[Image: USB_Display_Service_Utility.png?m=1751872616]
(This post was last modified: 07-07-2025, 07:23 AM by Irinikus.)
Irinikus
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07-07-2025, 07:21 AM
#45
RE: My 21" Apple Studio Display (Blueberry - CRT) Restoration Project
After running the monitor for quite a while, I have noticed that it will indeed need a Flyback transformer replacement, as every few hours I’m getting the notorious “click, pop, Zoom”, which is the symptom of a failing Flyback transformer!

Thank God I managed to get a new one!

This repair will have to wait until I have the correct tools to do the job myself.

I can live with it for now, knowing that I have the spare Flyback!

I will do an update on this in the future.
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07-08-2025, 04:17 AM


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