I have a 128K which was upgraded back in the day to a Plus. It has the 128K front and the Plus 1MB back case. Logic board and Analog board are Plus parts.
It powers on but has no video. I suspect some worn out components on the analog board.
Straight away upon inspection - the C1 capacitor is bulging badly at the top, and leaking at the bottom. So I've removed that, and now I'm finding it hard to find a replacement!
The capacitor says 35 V 3.9 uF (M) on it.
The analog board is part number 630-0108 - it's stamped with 'International'. (I'm in the UK...)
I checked this well-circulated list of components for the analog board, but it says C1 is 3.9µF 100V. However this list seems to be for U.S. analog boards only...
https://docs.google.com/spreadsheets/d/132RwzC8HM5ask-BdY_31txErOCwJDSkz099GY2XLpE0/edit?hl=en&hl=en#gid=0
So does the International version of the board use a lower voltage capacitor, or are they interchangeable ?
I also removed the two RIFA film capacitors, as they looked ready to explode and are badly cracked. These are marked RIFA 4700pF PME 271 Y 250V~SH . What can these be replaced with?
Photos attached if it helps.
Thanks in advance.
It powers on but has no video. I suspect some worn out components on the analog board.
Straight away upon inspection - the C1 capacitor is bulging badly at the top, and leaking at the bottom. So I've removed that, and now I'm finding it hard to find a replacement!
The capacitor says 35 V 3.9 uF (M) on it.
The analog board is part number 630-0108 - it's stamped with 'International'. (I'm in the UK...)
I checked this well-circulated list of components for the analog board, but it says C1 is 3.9µF 100V. However this list seems to be for U.S. analog boards only...
https://docs.google.com/spreadsheets/d/132RwzC8HM5ask-BdY_31txErOCwJDSkz099GY2XLpE0/edit?hl=en&hl=en#gid=0
So does the International version of the board use a lower voltage capacitor, or are they interchangeable ?
I also removed the two RIFA film capacitors, as they looked ready to explode and are badly cracked. These are marked RIFA 4700pF PME 271 Y 250V~SH . What can these be replaced with?
Photos attached if it helps.
Thanks in advance.
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