Macintosh Performa 5200CD Troubleshooting: Difference between revisions
Created Macintosh Performa 5200CD Troubleshooting page |
Expand troubleshooting: PRAM battery, logic+PSU recap (2200uF), all-in-one analog/road-apple notes; cited |
||
| Line 188: | Line 188: | ||
| 8-bit sound quality || Hardware revision || Check for capacitor C255 on logic board; if present, unit has 8-bit audio | | 8-bit sound quality || Hardware revision || Check for capacitor C255 on logic board; if present, unit has 8-bit audio | ||
|} | |} | ||
== ⚠️ PRAM battery == | |||
The Performa 5200 uses a 3.6 V 1/2AA lithium PRAM battery that leaks and can burst, corroding the logic board. Remove it from any un-serviced unit and clean/repair any leakage before troubleshooting.<ref name="ppc_batt">[https://68kmla.org/bb/threads/warning-exploding-maxell-pram-batteries.25169/ 68kMLA — Exploding Maxell PRAM Batteries]. Source for the leaking/exploding 3.6 V lithium PRAM battery.</ref> | |||
== ⚠️ Recap (logic board and PSU) == | |||
The Performa 5200 uses aluminium electrolytic capacitors on both the logic board and the power supply, and they leak with age. Recap and clean both boards as a first step; the large '''2200 uF''' PSU filter capacitors in particular are a known failure point, giving a dead machine, failure to power on, or instability.<ref name="pmcap">[https://recapamac.com.au/powermac-6100/ Recap-a-Mac — Power Macintosh 6100]; Badcaps "Macintosh 6100 power supply"; and the Apple Performa/Power Macintosh 6400/6500 Service Source. Source for the logic-board and power-supply electrolytic failures (including the 2200 uF PSU capacitors) and the recap.</ref> | |||
== All-in-one analog board and video == | |||
As an all-in-one with a built-in CRT, this machine has an analog board like the compact and Color Classic Macs. '''Vertical lines''', a collapsed raster, dim or distorted video, or no video with the machine otherwise alive point to the analog board — reflow cracked solder joints (deflection yoke and flyback area) and recap the analog board.<ref name="x200av">[https://68kmla.org/bb/threads/performa-6200-desktop-vertical-lines.52557/ 68kMLA — Performa 6200 vertical lines]. Source for the all-in-one analog-board video faults on the x200/x400 Performas.</ref> | |||
== Architecture note ("road apple") == | |||
The x200 family (5200/5300/6200/6300) is nicknamed the "road apple": to cut cost Apple put the 64-bit PowerPC 603 on a Quadra 605-derived board with a 25 MHz 32-bit memory bus and an 8-bit IDE controller, so the machine is much slower than its CPU suggests. This is a design limitation, not a fault — do not chase it as a hardware failure.<ref name="x200">[https://lowendmac.com/1995/performa-5200/ Low End Mac — Performa 5200] and [https://lowendmac.com/1995/power-mac-6200-performa-6200/ Power Mac 6200/Performa 6200]; and 68kMLA "Performa/Power Mac 5200-6300 Issues" discussions. Source for the x200 road-apple architecture (Quadra 605-based 32-bit board with a 64-bit 603 CPU and 8-bit IDE) and its capacitor/PSU faults.</ref> | |||
== References == | |||
<references /> | |||
== Related Pages == | == Related Pages == | ||