Editing Category:Psion

__NOTOC__{{CategoryHeaderBox
| title = Psion
| subtitle = British Pocket Computers, Organisers and Palmtops from the Original 1984 Organiser to the netBook
}}
{{cmbox
| type = notice
| text = The Psion category is '''new!'''. Many of the pages do not exist, documentation has not been uploaded, and the category is subject to change. '''If you wish to contribute, please do!'''
}}
[[File:Psion historisch logo.png|right|frameless|200px]]
Welcome to the '''Psion''' category! Psion Plc was the British company that defined the pocket-computer category in the 1980s and 1990s. The line begins with the [[Psion Organiser|Organiser]] in 1984 — the first electronic organiser — and runs through the [[Psion Series 3|Series 3]] and [[Psion Series 5|Series 5]] clamshell palmtops, the [[Psion Revo|Revo]], the [[Psion netBook|netBook]], and the [[Psion Workabout|Workabout]] ruggedised industrial PDA. This category collects maintenance, troubleshooting, and recap guides for the entire Psion line.

Each system features:
* Hinge, ribbon and keyboard repair on the Series 3 and Series 5 clamshells
* SSD pack repair and Datapak / Rampak replacements for the Organiser II
* Battery, NiMH replacement and PCB cleaning across all generations
* EPOC and SIBO ROM/flash documentation for restoration

== 📟 Organiser (1984-89) ==
<templatestyles src="Template:StyledTable/styles.css" />
{| class="wikitable styled-table" style="width:100%; text-align:center;"
|-
! Model !! Maintenance !! Troubleshooting !! Capacitor Guide !! SSD / Pack Service
|-
| [[Psion Organiser]] || [[Psion Organiser General Maintenance]] || [[Psion Organiser Troubleshooting Guide]] || [[Psion Organiser Capacitor Replacement Guide]] || [[Psion Organiser Datapak Repair]]
|-
| [[Psion Organiser II]] || [[Psion Organiser II General Maintenance]] || [[Psion Organiser II Troubleshooting Guide]] || [[Psion Organiser II Capacitor Replacement Guide]] || [[Psion Organiser II Datapak Repair]]
|}

== 💻 Series 3 (1991-98) ==
<templatestyles src="Template:StyledTable/styles.css" />
{| class="wikitable styled-table" style="width:100%; text-align:center;"
|-
! Model !! Maintenance !! Troubleshooting !! Hinge / Ribbon Repair
|-
| [[Psion Series 3]] || [[Psion Series 3 General Maintenance]] || [[Psion Series 3 Troubleshooting Guide]] || [[Psion Series 3 Hinge Repair]]
|-
| [[Psion Series 3a]] || [[Psion Series 3a General Maintenance]] || [[Psion Series 3a Troubleshooting Guide]] || [[Psion Series 3a Hinge Repair]]
|-
| [[Psion Series 3c]] || [[Psion Series 3c General Maintenance]] || [[Psion Series 3c Troubleshooting Guide]] || [[Psion Series 3c Hinge Repair]]
|-
| [[Psion Series 3mx]] || [[Psion Series 3mx General Maintenance]] || [[Psion Series 3mx Troubleshooting Guide]] || [[Psion Series 3mx Hinge Repair]]
|-
| [[Psion Siena]] || [[Psion Siena General Maintenance]] || [[Psion Siena Troubleshooting Guide]] || —
|}
''No capacitor guides are listed for the Series 3 family. These are low-voltage SIBO machines running from two AA or AAA cells through switch-mode converters, with no bulk electrolytic smoothing stage and no community history of recapping — the faults people actually report are the hinges, the button bar, the screen ribbon, the battery lead and the SSD door sensing. The reasoning, and the two situations where capacitor work ''is'' justified, are in [[Psion Series 3a General Maintenance]]. The Siena has no clamshell hinge failure comparable to the Series 3's, so no hinge guide is listed for it.''

== 💻 Series 5 / Revo (1997-2000) ==
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{| class="wikitable styled-table" style="width:100%; text-align:center;"
|-
! Model !! Maintenance !! Troubleshooting !! Capacitor Guide !! Hinge / Ribbon / Battery
|-
| [[Psion Series 5]] || [[Psion Series 5 General Maintenance]] || [[Psion Series 5 Troubleshooting Guide]] || — || [[Psion Series 5 Hinge Cable Repair]]
|-
| [[Psion Series 5mx]] || [[Psion Series 5mx General Maintenance]] || [[Psion Series 5mx Troubleshooting Guide]] || [[Psion Series 5mx Capacitor Replacement Guide]] || [[Psion Series 5mx Hinge Repair]]
|-
| [[Psion Series 5mx Pro]] || [[Psion Series 5mx Pro General Maintenance]] || [[Psion Series 5mx Pro Troubleshooting Guide]] || — || ''see'' [[Psion Series 5mx Hinge Repair]]
|-
| [[Psion Revo]] || [[Psion Revo General Maintenance]] || [[Psion Revo Troubleshooting Guide]] || — || [[Psion Revo Battery Replacement]]
|-
| [[Psion Revo Plus]] || [[Psion Revo Plus General Maintenance]] || [[Psion Revo Plus Troubleshooting Guide]] || — || [[Psion Revo Battery Replacement]]
|}
''The [[Psion Series 5mx Capacitor Replacement Guide]] covers the whole EPOC platform, including why none of these machines is a recap candidate and the three situations where capacitor work is nevertheless justified. The 5mx Pro is mechanically a Series 5mx, so it shares that machine's hinge guide rather than having its own. The Revo and Revo Plus have no clamshell ribbon failure — their defining repair is the pair of soldered-in NiMH cells, so a battery replacement guide takes that column instead.''

== 💻 Series 7 / netBook (1999-2003) ==
<templatestyles src="Template:StyledTable/styles.css" />
{| class="wikitable styled-table" style="width:100%; text-align:center;"
|-
! Model !! Maintenance !! Troubleshooting !! Battery Service
|-
| [[Psion Series 7]] || [[Psion Series 7 General Maintenance]] || [[Psion Series 7 Troubleshooting Guide]] || [[Psion Series 7 Battery Service]]
|-
| [[Psion netBook]] || [[Psion netBook General Maintenance]] || [[Psion netBook Troubleshooting Guide]] || [[Psion netBook Battery Service]]
|-
| [[Psion netBook Pro]] || [[Psion netBook Pro General Maintenance]] || [[Psion netBook Pro Troubleshooting Guide]] || [[Psion netBook Pro Battery Service]]
|}
''No capacitor guides are listed for the Series 7, netBook or netBook Pro. Detailed research across the surviving community record — the contemporary Series 7 FAQ's own hardware fault list, PsionWiki, the OpenPsion netBook HOWTO, comp.sys.psion, HPC:Factor and the modern collector write-ups — found '''no report of a failed capacitor, a bulging or leaking electrolytic, or anyone recapping one of these machines'''. The faults the community actually documents are the screen cable, the battery-catch microswitch, the CompactFlash drawer, PC Card current draw and, on the netBook Pro, the hinges. The reasoning, and the two situations where capacitor work ''is'' justified, are in the [[Psion Series 7 Troubleshooting Guide#Capacitors|Psion Series 7 Troubleshooting Guide]]. The Series 7 and netBook share one battery pack, so the rebuild procedure is written once on [[Psion netBook Battery Service]] and cross-referenced; the netBook Pro takes a different pack and has its own procedure. '''No Psion service manual, spare parts list or exploded diagram survives for any of these three machines''', but the user guides, datasheets and Psion Teklogix's own netBook FAQ are hosted below.''

== 🛠️ Workabout (industrial) ==
<templatestyles src="Template:StyledTable/styles.css" />
{| class="wikitable styled-table" style="width:100%; text-align:center;"
|-
! Model !! Maintenance !! Troubleshooting !! Capacitor Guide
|-
| [[Psion Workabout]] || [[Psion Workabout General Maintenance]] || [[Psion Workabout Troubleshooting Guide]] || [[Psion Workabout Capacitor Replacement Guide]]
|-
| [[Psion Workabout mx]] || [[Psion Workabout mx General Maintenance]] || [[Psion Workabout mx Troubleshooting Guide]] || [[Psion Workabout mx Capacitor Replacement Guide]]
|-
| [[Psion Workabout Pro]] || [[Psion Workabout Pro General Maintenance]] || [[Psion Workabout Pro Troubleshooting Guide]] || [[Psion Workabout Pro Capacitor Replacement Guide]]
|}

== 🖥️ All Psion ==
{{Navbox-Psion|state=expanded}}

== 🧪 Tools & Procedures ==
* '''[[Recommended Tools]]''' – Essential tools for restoration, soldering and diagnostics.
* '''[[Capacitor Failure Symptoms]]''' – Recognising and diagnosing failed electrolytic capacitors.
* '''[[CRT Discharge Procedure]]''' – Safety steps for systems with integrated CRTs.

== 🛠️ Service Manuals & Documentation ==
* '''[[Psion Series 5 Service Manual]]''' – Psion's own 46-page service manual (November 1997): circuit description, exploded views with part numbers, disassembly and reassembly, and the factory Final Test fault codes. Applies mechanically to the Series 5mx as well.
* '''[[Psion Organiser II Spare Parts List]]''' – Psion's exploded diagram and component-level parts lists, including every capacitor designator, value and part number for the Organiser II boards.
* '''[[Psion Series 7 User Guide]]''' – Psion's own 226-page user guide (August 1999, part no. 6131-0004-01).
* '''[[Psion netBook Documentation]]''' – Psion's user guide, product datasheet, customer FAQ, docking-station and PC Card hardware note, and serial port pinout. The FAQ carries Psion's own PC Card slot current limits — 800 mA, 300 mA and 200 mA — which explain most card compatibility problems on these machines.
* '''[[Psion netBook Pro Documentation]]''' – Psion Teklogix's 172-page user manual (Rev C), 92-page quick start guide (Rev D), specification sheet and BooSt supervisor-mode note.
* [[:Category:Service Manuals|Service Manuals]] – Cross-manufacturer manual collection.
* [[:Category:Capacitor Replacement Guides|Capacitor Replacement Guides]] – Model-specific capacitor specs.

== 🔍 See Also ==
* [[:Category:Vintage Computers|'''Vintage Computers''']]
* '''[https://forum.retrotechcollection.com RTC Community Forum]'''

[[Category:Vintage Computers]]