Apple IIe: Difference between revisions

Line 142:

<ref name="iie-tp-4" /><ref name="iie-ipl" /><ref name="dd">''Apple IIe Repair Guide'', "Double Density", distributed by Apple2Online, [https://mirrors.apple2.org.za/ftp.apple.asimov.net/documentation/hardware/machines/Apple%20IIe%20Repair%20Guide%20-%20Double%20Density.pdf mirrors.apple2.org.za]. Community document, not an Apple publication: chip location table (6502B B4, HAL D1, MMU D4, IOU D6, keyboard ROM D12, AY3600 D14, video ROM F4, RAM F6-F13).</ref>

Apple's drawing places the CD ROM at row 8 and the EF ROM at row 10; the community guide lists them the other way round (EF ROM at D8, CD ROM at D10). Apple's symptom chart also refers to a character generator ROM "at location E-12", a position that holds the keyboard ROM on Apple's drawing. Check the part number on the chip before replacing it.<ref name="iie-tp-4" /><ref name="dd" />

Apple's drawing places the CD ROM at row 8 and the EF ROM at row 10, and the photograph in Apple's Enhancement Kit sheet shows the same order, CD to the left of EF seen from the front.<ref name="enh-kit">''Apple IIe Enhancement Kit: Dealer's Installation Instructions'', Apple Computer, Inc., part number 030-1142-B, hosted as [[:File:Apple IIe Enhancement Kit Dealer Installation Instructions.pdf]]. Figure 1, chips on the U.S. (NTSC) main logic board, p. 2.</ref> The community guide lists them the other way round (EF ROM at D8, CD ROM at D10). Apple's symptom chart also refers to a character generator ROM "at location E-12", a position that holds the keyboard ROM on Apple's drawing. Check the part number on the chip before replacing it.<ref name="iie-tp-4" /><ref name="dd" />

== Diagnostics ==

@@ Line 142: / Line 142: @@
 <ref name="iie-tp-4" /><ref name="iie-ipl" /><ref name="dd">''Apple IIe Repair Guide'', "Double Density", distributed by Apple2Online, [https://mirrors.apple2.org.za/ftp.apple.asimov.net/documentation/hardware/machines/Apple%20IIe%20Repair%20Guide%20-%20Double%20Density.pdf mirrors.apple2.org.za]. Community document, not an Apple publication: chip location table (6502B B4, HAL D1, MMU D4, IOU D6, keyboard ROM D12, AY3600 D14, video ROM F4, RAM F6-F13).</ref>
-Apple's drawing places the CD ROM at row 8 and the EF ROM at row 10; the community guide lists them the other way round (EF ROM at D8, CD ROM at D10). Apple's symptom chart also refers to a character generator ROM "at location E-12", a position that holds the keyboard ROM on Apple's drawing. Check the part number on the chip before replacing it.<ref name="iie-tp-4" /><ref name="dd" />
+Apple's drawing places the CD ROM at row 8 and the EF ROM at row 10, and the photograph in Apple's Enhancement Kit sheet shows the same order, CD to the left of EF seen from the front.<ref name="enh-kit">''Apple IIe Enhancement Kit: Dealer's Installation Instructions'', Apple Computer, Inc., part number 030-1142-B, hosted as [[:File:Apple IIe Enhancement Kit Dealer Installation Instructions.pdf]]. Figure 1, chips on the U.S. (NTSC) main logic board, p. 2.</ref> The community guide lists them the other way round (EF ROM at D8, CD ROM at D10). Apple's symptom chart also refers to a character generator ROM "at location E-12", a position that holds the keyboard ROM on Apple's drawing. Check the part number on the chip before replacing it.<ref name="iie-tp-4" /><ref name="dd" />
 == Diagnostics ==

Apple IIe: Difference between revisions

Josh (talk | contribs)