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AuthorTopic: GVP A530 Turbo and HOT PALs  (Read 808 times)

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Offline -BobW-

GVP A530 Turbo and HOT PALs
« on: April 28, 2021, 05:09:52 PM »
So I have a GVP A530 with a full 8Megs and the hard drive replaced with a SCSI2SD adapter.  Life is good.  However, it gets hot.  This afternoon I have been running it without its case to get an idea where the heat is coming from.  CPU and FPU are cool as a cucumber.  Ram is also fine.  It turns out one of the PALs is really hot.  Like so hot I can't keep my finger on it for more than a second.

Is there a source for these PALs?  Can they be copied?  Any other thoughts?  I plan on adding heat sinks to at least the hottest PAL.
Amiga 500 GVP A530 Accel + SCSI2SD + 8 MB RAM and OS 2.04
Amiga 1200 GVP \\\'030 Accel + 32 MB RAM and OS 3.9 BB3
Amiga 4000 Cybervision 64/3D Mk-II + Warp Engine 4040 128 MB RAM and OS 3.9 BB3
Micro A1 866 Mhz and AmigaOS 4.1
PowerMac G4 1.4 Ghz and MorphOS 3.9
Mac Mini G4 1.5 Ghz and MorphOS 3.9
 

Offline Pat the Cat

Re: GVP A530 Turbo and HOT PALs
« Reply #1 on: April 28, 2021, 11:30:11 PM »
Can't say I know of a source for programming them.

However, i do recall the a530 running hot, and checked the datasheets for the components. The PAL and Mach130 chips have same operating characteristics (good up to ambient 75 degrees centigrade, 125 degrees centigrade maximum operating temperature).

Add a heatsink or two if it makes you happy, the unit tends to shut down when it gets too hot and won't work again until it's cooled down.

I haven't come across any downloads for programming any of them. Perhaps nobody ever tried, you have to desolder them to do that.
"To recurse is human. To iterate, divine."

A1200, Vanilla, Surf Squirrel, SD Card, KS 3.0/3.z, PCMCIA dev
A500, Vanilla, A570, Rev 5, KS 1.2/1.3 Testbench system
Rasp Pi, UAE4ARM, 3D laser scanner, experimental, hoping for AmigaOS4Arm, based on Watterott Fabscan Pi
 

Offline -BobW-

Re: GVP A530 Turbo and HOT PALs
« Reply #2 on: April 29, 2021, 03:32:37 AM »
I'm mostly concerned about preserving this thing.  I'm going to go ahead and install heat sinks.

As a side note all my PALs are socketed so no desoldering. 
Amiga 500 GVP A530 Accel + SCSI2SD + 8 MB RAM and OS 2.04
Amiga 1200 GVP \\\'030 Accel + 32 MB RAM and OS 3.9 BB3
Amiga 4000 Cybervision 64/3D Mk-II + Warp Engine 4040 128 MB RAM and OS 3.9 BB3
Micro A1 866 Mhz and AmigaOS 4.1
PowerMac G4 1.4 Ghz and MorphOS 3.9
Mac Mini G4 1.5 Ghz and MorphOS 3.9