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Please can you read through and vote on the following proposition for changes to the board structure by
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GreenBar0n
replied to the thread
VOLTAGE DIFFERENCES among SE & SE/30 Analog Boards
.
Yes, was curious as to where the voltage increase or lack of resistance is coming from on the EU AB. Without knowing the voltage of the...
Jan 20, 2026
JDW
replied to the thread
Macintosh Portable: "pop" noise every 10s from Speaker & Headphones
.
I am still at work and the Portable is packed away at home. If I have time after work tonight I can boot my Portable into System 6 and...
Jan 20, 2026
JDW
replied to the thread
VOLTAGE DIFFERENCES among SE & SE/30 Analog Boards
.
You are asking about the 74LS38 VCC Pin 14 voltage, but I don't have the EU edition Analog Board currently installed right now to test...
Jan 20, 2026
GreenBar0n
replied to the thread
VOLTAGE DIFFERENCES among SE & SE/30 Analog Boards
.
Curious what the 74LS38 VCC Pin 14 voltage is of the EU board, is it 5.16V there and also the collector of Q2?
Jan 20, 2026
GreenBar0n
replied to the thread
(2) Macintosh SE/30's - Full Restoration
.
Thanks so much @caver01, I really appreciate that! Without the Simasima Repair Guide, I was stuck and lost, had to take a year off and...
Jan 20, 2026
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