Apple classic ii.performa 200 Manuale Di Servizio
Troubleshooting
Symptom Charts/Miscellaneous
(Continued)
- 14
Miscellaneous
(Continued)
Screen shows “Sad
Macintosh” icon and
black vertical lines;
screeching sound
1 Verify that jumper on memory expansion board is configured
correctly for “SIMMs” or “No SIMMs.” (See “Memory
Upgrade” in Upgrades.)
2 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.
3 On Macintosh Classic, replace optional memory expansion
board; on Macintosh Classic II/Performa 200, replace
optional SIMMs in two SIMMs slots on logic board.
4 Replace logic board. Retain customer’s SIMMs.