RyuX
Crossed Swords Squire
- Joined
- Sep 19, 2018
- Posts
- 179
Hey guys - by the time I am typing this I was already able to fix the broken board that I received today.
When first finding out it is a MV-1AHCX I was scared because I had no experience with this revision.
Connecting it first it showed a Backup RAM Error and once the backup RAM error was fixed it was stuck on the green screen.
I then inspected the backside of the board and found that some capacitors and a transistor was missing (gladly I had a donor MV-1FZ which has identical parts).
One of the caps was responsible for the crystal in the backup area and the broken transistor with the ripped off trace was connected to the 4990.
I also replaced the HC32 and the 4990 as the other fixed still got me stuck on the green screen.
Once this was done the baby fired up perfectly - no issues.
I really have to say it is nice to have an easy repair every once in a while.. really satisfying
Have a great day
When first finding out it is a MV-1AHCX I was scared because I had no experience with this revision.
Connecting it first it showed a Backup RAM Error and once the backup RAM error was fixed it was stuck on the green screen.
I then inspected the backside of the board and found that some capacitors and a transistor was missing (gladly I had a donor MV-1FZ which has identical parts).
One of the caps was responsible for the crystal in the backup area and the broken transistor with the ripped off trace was connected to the 4990.
I also replaced the HC32 and the 4990 as the other fixed still got me stuck on the green screen.
Once this was done the baby fired up perfectly - no issues.
I really have to say it is nice to have an easy repair every once in a while.. really satisfying
Have a great day