Apple classic ii.performa 200 Service Manual

 

 Troubleshooting

Symptom Charts/Miscellaneous

 

 (Continued)

 

 - 13

 

“Sad Macintosh” icon

1 Replace bad disk with known-good disk.

2 Verify that jumper on memory expansion board is configured 

correctly for “SIMMs” or “No SIMMs.” (See “Memory 

Upgrade” in Additional Procedures.)

3 On 4 MB Macintosh Classic, confirm SIMMs used are eight-

chip SIMMs. (See Memory manual.) Any 1 MB SIMMs with 

fewer than eight chips won’t work in the Macintosh Classic.

4 On Macintosh Classic, replace optional memory expansion 

board; on Macintosh Classic II/Performa 200, replace 

optional SIMMs in two SIMMs slots on logic board. 

5 Replace logic board. Retain customer’s SIMMs.