classic2_outline

Macintosh Classic II (Apple Computer, Inc.)

[Outline] [Replace leaked capacitors] [Adjust the voltage of AVR]
[Re-soldering the fly back transformer]

Fig.1 Overview

[Features]

MC68030 16MHz
Classic II developper note is here ( PDF format 288kB )
at the "All Hardware Products page" of Apple Computer, Inc.

[Trouble-shoots]

Trouble Cause Repair

Display nothing. All of the chemical capacitors were leaking. Replace the capacitors.

The noisy tone from the fly back transformer. There was a solder clack at the pin of the trans. Re-soldering the fly back transformer

Trouble	Cause	Repair
Display nothing.	All of the chemical capacitors were leaking.	Replace the capacitors.
The noisy tone from the fly back transformer.	There was a solder clack at the pin of the trans.	Re-soldering the fly back transformer