IMac G5 A1144: Difference between revisions

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=== Motherboard ===
=== Motherboard ===
Apple 820-1783-A
Apple 820-1783-A
[[File:Apple 820-1783-A.jpg|frameless]]
[[File:Apple 820-1783-A.jpg|frameless]]
{| class="wikitable sortable"
{| class="wikitable sortable"
|+Capacitor [[Capacitor Specifications|Specifications]] and  [[Part Footprints|Footprint]] Information
|+Capacitor [[Capacitor Specifications|Specifications]] and  [[Part Footprints|Footprint]] Information

Revision as of 16:51, 21 October 2024

For more information, see this article's corresponding Wikipedia page: Device.
Apple iMac G5/1.9 17" (iSight) (A1144)
Preliminary Information
Release Year 2005
Leak Risk Medium
Batteries CR2032
Mounting Technology Though Hole, SMD
Capacitor Types Aluminum Electrolytic
Destructive Entry No

The Apple iMac G5/1.9 17" (iSight (A1144) was the final PowerPC based Macintosh released by Apple prior to the Intel transition.

Known Issues

Symptom or Problem Encountered

Upon power-on, mouse pointer is displayed along with spinning wheel. A repeating pattern of vertical lines is displayed on the screen.

Note: This particular unit's serial number, starting with W8, can include defective LCD screens.

Causes

  • Two visibly bad through hole capacitors identified on mainboard at positions C1309 and C8509.

Solutions

  • Replacements parts will be ordered and repair attempted after recording the state of the board.

Disassembly Notes

The iFixIt guide is essential when working on this machine. Disassembly is not difficult but there are many steps required. All capacitors are located on the underside of the board and cannot be inspected without removal of the mainboard from the chasis.

Original Parts

Motherboard

Apple 820-1783-A

Capacitor Specifications and Footprint Information
RefDes Qty Capacitance Voltage Mount Diameter/Size Height Lead Spacing Temp Type Brand Series
0 µF 0 °C

Replacement Parts

Basic PCB Name

Capacitors
RefDes Qty Compatible Part Number Order Links
Digikey

If parts are not available or different selection is preferred, you can use the values in the Original Parts section to perform a parametric search.

Related Links

References

Apple iMac G5/1.9 17" (iSight) Specs (everymac.com)
iMac G5 17" Model A1144 Repair (ifixit.com)iMac G5 (WikiPedia)