PET Shack Service Bundle: Difference between revisions
Auto-created Commodore PET 2001 schematic page |
P4 documentation drive: rewrite doc-holder as a real documentation page - printed title, Commodore P/N, drawing numbers, assemblies covered, honest gaps and what each settles; corrects the C64GS date (November 1990, not May) and fixes the malformed 320130 download link |
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The '''PET-Shack service bundle''' is a 37-page compilation of [[Commodore PET 2001]] service material assembled and sold by '''P.S. Software House / Marketing and Research Co. ("PET-SHACK"), P.O. Box 966, Mishawaka, Indiana''', over the signature of its president Larry R. Shallenberger. | |||
'''It is not a Commodore document.''' It is a third-party bundle, and what makes it worth having is that it collects things Commodore's own PET 2001 documentation does not: an errata sheet against the published schematics, and the data sheets for the chips the machine is built from. | |||
The scan carries no text layer. | |||
== What is in the bundle == | |||
<templatestyles src="Template:StyledTable/styles.css" /> | |||
{| class="wikitable styled-table" style="width:100%; text-align:left;" | |||
! Pages !! Content | |||
|- | |||
| 1 || PET-Shack covering letter | |||
|- | |||
| 2 || '''"ERRATA: Corrections and Differences for the PET schematics"''' — PET-Shack's own corrections against the published drawings | |||
|- | |||
| 3 || PET-Shack note on '''ROM and RAM chips''' — substitutions and differences | |||
|- | |||
| 4 || '''Power supply and video monitor''' circuit, showing the 16.2 V AC feed to the video monitor | |||
|- | |||
| 5–10 || '''Cassette deck''' circuit sheets — record/play, with component values marked (R4 470 k, R2 75 k, R5 3.3 k and so on) and the J5 connector pinout | |||
|- | |||
| 11–15 || '''MOS Technology 6550''' static RAM data sheet — 4K bit, 1024 × 4, with maximum ratings and timing | |||
|- | |||
| 16–19 || '''Synertek''' 2114-type RAM and 2316/2332-type ROM data sheets — 300 ns access, 2048 × 8 organisation | |||
|- | |||
| 20–21 || '''Texas Instruments SN54/74LS138 and LS139''' decoder/demultiplexer data sheet | |||
|- | |||
| 22–23 || '''Motorola MC3446''' quad general-purpose interface bus transceiver data sheet | |||
|- | |||
| 24–29 || '''Synertek SY6500''' microprocessor, '''SY6520''' peripheral interface adapter and '''SY6522''' versatile interface adapter data sheets | |||
|- | |||
| 30–33 || '''TI SN54/74LS240, LS241, LS244''' octal buffers; '''SN54/74100'''; '''SN54/74157, LS158''' quad 2-line-to-1-line data selectors | |||
|- | |||
| 34–37 || Further PET circuit sheets, including a '''capacitors''' sheet, the '''0.0047 µF 1 kV''' high-voltage part, and the supply section with '''TIP29 (NPN) and TIP30 (PNP)''' pass transistors and the +16 V rail | |||
|} | |||
== What this bundle settles == | |||
* '''The PET's IEEE-488 bus transceivers are MC3446s''', and the bundle carries the full Motorola data sheet for them — the device most likely to be damaged by hot-plugging a disk drive, and the one Commodore's parts list names without describing. | |||
* '''The cassette deck has its own circuit''', with values, which the Commodore PET 2001 documentation on this wiki does not cover. | |||
* '''A 0.0047 µF 1 kV capacitor exists in the machine.''' Any PET capacitor list that gives every part a low voltage rating is missing this one. | |||
* '''TIP29 and TIP30''' are the supply pass transistors — a complementary pair, easy to fit the wrong way round. | |||
== What this bundle does not contain == | |||
* '''It is not authoritative for Commodore part numbers or values.''' Where it disagrees with Commodore's own [[Commodore PET 2001 Service Documentation|parts lists and schematics]], those are the primary source and this is a secondary one. The errata sheet is one collector's corrections, not a Commodore ECO. | |||
* '''No complete board parts list''' and no board layout. | |||
* '''No text layer''', so nothing in it is searchable. | |||
* The data sheets are generic manufacturer documents, not PET-specific. | |||
== Related pages == | |||
* [[Commodore PET 2001]] · [[Commodore PET 2001 Service Documentation]] · [[Commodore PET 2001 Capacitor Replacement Guide]] · [[Commodore PET 2001 General Maintenance]] | |||
<pdf> File:PET-Shack PET 2001 Bundle.pdf </pdf> | <pdf> File:PET-Shack PET 2001 Bundle.pdf </pdf> | ||
Download | Download: [[:File:PET-Shack PET 2001 Bundle.pdf|PET-Shack PET 2001 Bundle.pdf]] | ||
[[Category:Commodore PET 2001 Schematics]] | [[Category:Commodore PET 2001 Schematics]] | ||
[[Category:Commodore Documentation]] | |||
Latest revision as of 01:21, 25 September 2026
The PET-Shack service bundle is a 37-page compilation of Commodore PET 2001 service material assembled and sold by P.S. Software House / Marketing and Research Co. ("PET-SHACK"), P.O. Box 966, Mishawaka, Indiana, over the signature of its president Larry R. Shallenberger.
It is not a Commodore document. It is a third-party bundle, and what makes it worth having is that it collects things Commodore's own PET 2001 documentation does not: an errata sheet against the published schematics, and the data sheets for the chips the machine is built from.
The scan carries no text layer.
What is in the bundle
[edit | edit source]| Pages | Content |
|---|---|
| 1 | PET-Shack covering letter |
| 2 | "ERRATA: Corrections and Differences for the PET schematics" — PET-Shack's own corrections against the published drawings |
| 3 | PET-Shack note on ROM and RAM chips — substitutions and differences |
| 4 | Power supply and video monitor circuit, showing the 16.2 V AC feed to the video monitor |
| 5–10 | Cassette deck circuit sheets — record/play, with component values marked (R4 470 k, R2 75 k, R5 3.3 k and so on) and the J5 connector pinout |
| 11–15 | MOS Technology 6550 static RAM data sheet — 4K bit, 1024 × 4, with maximum ratings and timing |
| 16–19 | Synertek 2114-type RAM and 2316/2332-type ROM data sheets — 300 ns access, 2048 × 8 organisation |
| 20–21 | Texas Instruments SN54/74LS138 and LS139 decoder/demultiplexer data sheet |
| 22–23 | Motorola MC3446 quad general-purpose interface bus transceiver data sheet |
| 24–29 | Synertek SY6500 microprocessor, SY6520 peripheral interface adapter and SY6522 versatile interface adapter data sheets |
| 30–33 | TI SN54/74LS240, LS241, LS244 octal buffers; SN54/74100; SN54/74157, LS158 quad 2-line-to-1-line data selectors |
| 34–37 | Further PET circuit sheets, including a capacitors sheet, the 0.0047 µF 1 kV high-voltage part, and the supply section with TIP29 (NPN) and TIP30 (PNP) pass transistors and the +16 V rail |
What this bundle settles
[edit | edit source]- The PET's IEEE-488 bus transceivers are MC3446s, and the bundle carries the full Motorola data sheet for them — the device most likely to be damaged by hot-plugging a disk drive, and the one Commodore's parts list names without describing.
- The cassette deck has its own circuit, with values, which the Commodore PET 2001 documentation on this wiki does not cover.
- A 0.0047 µF 1 kV capacitor exists in the machine. Any PET capacitor list that gives every part a low voltage rating is missing this one.
- TIP29 and TIP30 are the supply pass transistors — a complementary pair, easy to fit the wrong way round.
What this bundle does not contain
[edit | edit source]- It is not authoritative for Commodore part numbers or values. Where it disagrees with Commodore's own parts lists and schematics, those are the primary source and this is a secondary one. The errata sheet is one collector's corrections, not a Commodore ECO.
- No complete board parts list and no board layout.
- No text layer, so nothing in it is searchable.
- The data sheets are generic manufacturer documents, not PET-specific.
Related pages
[edit | edit source]- Commodore PET 2001 · Commodore PET 2001 Service Documentation · Commodore PET 2001 Capacitor Replacement Guide · Commodore PET 2001 General Maintenance
Download: PET-Shack PET 2001 Bundle.pdf