Macintosh Centris 610 Troubleshooting: Difference between revisions
Deep dive: SMD cap leakage signatures, PRAM battery, analog/sound specifics, chime/Sad Mac; cited |
Remove emoji from section headings - the rebuilt pages across this wiki use plain headings, so these were batch drift rather than house style |
||
| Line 148: | Line 148: | ||
Replace all 10 logic board capacitors. See [[Macintosh Centris 610 Capacitor Replacement Guide]]. | Replace all 10 logic board capacitors. See [[Macintosh Centris 610 Capacitor Replacement Guide]]. | ||
== | == PRAM battery — remove it now == | ||
The Centris 610 carries a 3.6 V 1/2AA lithium PRAM battery. These leak and can '''burst''', spraying corrosive electrolyte across the logic board and destroying nearby components — often while the machine simply sits in storage. '''Remove the PRAM battery from any un-serviced unit.''' If one has leaked, neutralise and clean the residue and repair corroded traces and vias before troubleshooting.<ref name="mac2_batt">[https://68kmla.org/bb/threads/warning-exploding-maxell-pram-batteries.25169/ "Warning! Exploding Maxell PRAM Batteries"], 68kMLA; and [https://macdat.net/macintosh/macii/macintosh_iicx.html MacDat — Macintosh II family]. Source for the leaking/exploding lithium PRAM battery that destroys nearby components.</ref> | The Centris 610 carries a 3.6 V 1/2AA lithium PRAM battery. These leak and can '''burst''', spraying corrosive electrolyte across the logic board and destroying nearby components — often while the machine simply sits in storage. '''Remove the PRAM battery from any un-serviced unit.''' If one has leaked, neutralise and clean the residue and repair corroded traces and vias before troubleshooting.<ref name="mac2_batt">[https://68kmla.org/bb/threads/warning-exploding-maxell-pram-batteries.25169/ "Warning! Exploding Maxell PRAM Batteries"], 68kMLA; and [https://macdat.net/macintosh/macii/macintosh_iicx.html MacDat — Macintosh II family]. Source for the leaking/exploding lithium PRAM battery that destroys nearby components.</ref> | ||