Apple II+ power issue (not supply) --> Hot chips

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Apple II+ power issue (not supply) --> Hot chips

Hi All:

I am still troubleshooting an Apple II+ that appears to work fine w/o periphreal cards but gets wonky video when cards are in and no life in the cards.

I started doing some simple non-invasive assessments.  I discovered I have 2 chips that are getting significantly hot compared to all other chips, one is Apple ROM E0, the other is an SN74S195N.

Two questions:

1) Is this normal for these chips?

2) I have heard about DIY ROM replacements by burning your own on an EPROM.  Anyone done this and had success?

Thanks

mark