Repairing a dead Mac Classic II

[liamoc]

In addition to a Mac SE I recently got a Mac Classic II (rev A, with the 4 rom chips). This one apparently used to work, but now when I power it on, the fan turns on but the CRT does not come on at all, and no startup bong is audible. Any ideas where I should start? I assume I should re-cap the logic board? Taking a look at the surface-mounted caps on the board, it does appear than one cap (C6) might be leaking a bit (there's a tiny bit of green residue around it), but the others seem OK. I'm a bit hesitant to start removing caps as I've never even soldered anything before. How should I start? What should I be careful of?

Edit: On further testing, when powering on, there is a kind of repeated clicking sound coming from the power supply for about half a second. It stops after that. The fan continues to spin though.

 

[MOS8_030]

Check this out for starters: www.ccadams.org/se/classicmac2.pdf

I'm sure some other much more informed folks than me will be along in a bit to give you more specific info about the Classic II.

 

[IlikeTech]

CAPS!

 

[beachycove]

The CII is not especially easy to recap because of the clearances. It’s also only an hour’s work in billing terms for an old-fashioned tv repair shop. Just saying. 

 I once ruined a CII board due to inexperience and inadequate equipment, and would advise that you start out on something else if you’ve not done any soldering before.