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GreenBar0n
replied to the thread
"Chime cycles" and other strange behavior from Classic
.
The removal of UA5 with a hot air station, provided you use flux, would be very easy to do, takes just minutes. As long as the traces...
Jul 26, 2026
gfuller
replied to the thread
"Chime cycles" and other strange behavior from Classic
.
That photo was taken during the production of the linked video just last weekend. I could definitely see that being the problem, even...
Jul 26, 2026
Elemenoh
replied to the thread
Outbound Laptop Capacitor List & Repair Log
.
Repair update: I did get the old drive working after replacing the blown opamp. It has Outbound software version 1.3b2, which I think is...
Jul 26, 2026
C
campbellashe
replied to the thread
Expansion Memory Cards and Speed Limitations above 5MB on the Macintosh Portable
.
Running: Portable M5120 (non backlit) (BlueScsi as drive) Speedometer 3.23 "Performance Test" Snooper 2.0 "Memory Benchmark" System 7.1
Jul 26, 2026
GreenBar0n
replied to the thread
"Chime cycles" and other strange behavior from Classic
.
Was the second picture shown above, of the UA5 sound chip, taken recently? I ask because, if you paid someone to remove that chip and...
Jul 26, 2026
R
Rule5
replied to the thread
Bourns Again - Bourns 601 Series RC Network T-Filters Replacement
.
I know this is an older post, did you ever make some of these for sale? I’m restoring a Macintosh SE FDHD and may need a set based on...
Jul 26, 2026
Froggy814
replied to the thread
Expansion Memory Cards and Speed Limitations above 5MB on the Macintosh Portable
.
So if it gets slower because of no /Dtack signal, couldn't you program a chip and put it on your PCB so that it asserts /Dtack? EDIT...
Jul 26, 2026
B
Boojakascha
replied to the thread
Hacking the Kodak Reels 8mm Film Digitizer (New Thread)
.
Thank you very much! I confirm that it's working great on my Hardware Version D. Fat32 formated Kingston 16 GB card, class 10. The...
Jul 26, 2026
mmu_man
replied to the thread
Expansion Memory Cards and Speed Limitations above 5MB on the Macintosh Portable
.
Well yeah then it's logical than the larger RAM, the slower it gets on average, if more of it is in the one waitstate section. It...
Jul 26, 2026
C
campbellashe
replied to the thread
Expansion Memory Cards and Speed Limitations above 5MB on the Macintosh Portable
.
Agree. I got in contact with Reza and he confirmed the use of the PDS and DTACK, I’ll try to place a wire to the DTACK pin on the PDS...
Jul 26, 2026
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