Sinclair Spectrum: Difference between revisions

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The famous ZX Spectrum from [[wikipedia:Sinclair_Research|Sinclair Research]] introduced in 1982
{{WikipediaInfoAlt|ZX Spectrum}}


{{WikipediaInfoAlt|ZX Spectrum}}
{{DeviceAlerts}}
{{InfoboxDevice
{{InfoboxDevice
|Title = Sinclair Spectrum
|Title = Sinclair Spectrum
Line 12: Line 10:
|Batteries = None
|Batteries = None
|Destructive Entry = No
|Destructive Entry = No
}}
|CPU=Z80A|Memory=16-48 kB|Graphics=15 colors, 256×192}}
 
The ZX Spectrum from [[wikipedia:Sinclair_Research|Sinclair Research]] was introduced in 1982 and sold up until 1992, becoming the bestselling home computer in the UK until it lost its title to the Raspberry Pi. It is based on a Zilog Z80A 8-bit microprocessor and came with 16 or 48 KB of RAM. It could produce 15 different colors at a resolution of 256×192.
 
==Known Issues==
==Known Issues==


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!Series
!Series
|-
|-
|C25,C28,C44,C47,C50,C65
|C25,C28,C34,C47,C50,C65
|6
|6
|22 µF
|22 µF
|16
|16 V
|Axial
|Axial
|4.8 mm Dia.
|4.8 mm Dia.
Line 59: Line 60:
|2
|2
|1 µF
|1 µF
|50
|50 V
|Axial
|Axial
|4.8 mm Dia.
|4.8 mm Dia.
Line 71: Line 72:
|2
|2
|100 µF
|100 µF
|16
|16 V
|Axial
|Axial
|6.5 mm Dia.
|6.5 mm Dia.
Line 84: Line 85:
===Spectrum motherboard Issue 2===
===Spectrum motherboard Issue 2===
{| class="wikitable sortable"
{| class="wikitable sortable"
|+Capacitors
|+Replacement Radial Capacitors
!RefDes
!RefDes
!Qty
!Qty
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!Order Links
!Order Links
|-
|-
|
|C25, C28, C34, C47, C50, C65
|
|6
|
|860020372002 / 50YXF22MEFCTA5X11
|[https://www.digikey.com/ Digikey]
|[https://www.digikey.com/en/products/detail/w%C3%BCrth-elektronik/860020372002/5728734 Digikey] [https://www.mouser.com/ProductDetail/Wurth-Elektronik/860020372002?qs=0KOYDY2FL2%2F2t6UrLWFaNA%3D%3D Mouser] [https://www.lcsc.com/product-detail/Aluminum-Electrolytic-Capacitors-Leaded_Rubycon-50YXF22MEFCTA5X11_C365695.html LCSC]
|-
|C27, C46
|2
|860020672005 / 50YXF1MEFCTA5X11
|[https://www.digikey.com/en/products/detail/w%C3%BCrth-elektronik/860020672005/5728796 DigiKey] [https://www.mouser.com/ProductDetail/Wurth-Elektronik/860020672005?qs=0KOYDY2FL29w5cS8aahRvQ%3D%3D Mouser] [https://www.lcsc.com/product-detail/Aluminum-Electrolytic-Capacitors-Leaded_Rubycon-50YXF1MEFCTA5X11_C432315.html LCSC]
|-
|C44, C45
|2
|860010372006 / 16PX100MEFC5X11
|[https://www.digikey.com/en/products/detail/w%C3%BCrth-elektronik/860010372006/5728555 DigiKey] [https://www.mouser.com/ProductDetail/Wurth-Elektronik/860010372006?qs=0KOYDY2FL29Ggp2VaG847w%3D%3D Mouser] [https://www.lcsc.com/product-detail/Aluminum-Electrolytic-Capacitors-Leaded_Rubycon-16PX100MEFC5X11_C88753.html LCSC]
|}
{| class="wikitable sortable"
|+Replacement Axial Capacitors
!RefDes
!Qty
!Compatible Part Number
!Order Links
|-
|C25, C28, C34, C47, C50, C65
|6
|MAL213835229E3
|[https://www.digikey.com/en/products/detail/vishay-beyschlag-draloric-bc-components/MAL213835229E3/263102 Digikey] [https://www.mouser.com/ProductDetail/Vishay-BC-Components/MAL213835229E3?qs=cAZGeXF9iMpwMn3iAIn%2Fkg%3D%3D Mouser]
|-
|C27, C46
|2
|105TTA050M
|[https://www.digikey.com/en/products/detail/cornell-dubilier-illinois-capacitor/105TTA050M/5410603 DigiKey] [https://www.mouser.com/ProductDetail/CDE-Illinois-Capacitor/105TTA050M?qs=UG%2F8xqv%2F6WfG1nPz8JgKXw%3D%3D Mouser]
|-
|C44, C45
|2
|107BPA016M
|[https://www.digikey.com/en/products/detail/cornell-dubilier-illinois-capacitor/107BPA016M/5410731 DigiKey] [https://www.mouser.com/ProductDetail/CDE-Illinois-Capacitor/107BPA016M?qs=3tP%252BN51vMXcmVaYjLpsFVA%3D%3D Mouser]
|}
|}
''If parts are not available or different selection is preferred, you can use the values in the [[#Original_Parts|Original Parts]] section to perform a parametric search.''
''If parts are not available or different selection is preferred, you can use the values in the [[#Original_Parts|Original Parts]] section to perform a parametric search.''
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== Original Parts ==
== Original Parts ==
=== Spectrum motherboard Issue 3 ===
=== Spectrum motherboard Issue 3 ===
[[File:Sinclair spectrum issue 3 capacitors.png|alt=Picture of Sinclair Spectrum issue 2 motherboard showing capacitor positions and values|thumb|Sinclair Spectrum issue 3 motherboard capacitors|409x409px]]
{| class="wikitable sortable"
{| class="wikitable sortable"
|+Capacitor [[Capacitor Specifications|Specifications]] and  [[Part Footprints|Footprint]] Information
|+Capacitor [[Capacitor Specifications|Specifications]] and  [[Part Footprints|Footprint]] Information
Line 108: Line 142:
!Diameter/Size
!Diameter/Size
!Height
!Height
!Lead Spacing
!Temp
!Temp
![https://caps.wiki/wiki/Capacitor_Types Type]
![https://caps.wiki/wiki/Capacitor_Types Type]
Line 114: Line 147:
!Series
!Series
|-
|-
|C25,C28,C34,C47,C50,C65
|6
|22 µF
|25 V
|Axial
|4.8mm
|12 mm
|85 °C
|Aluminum Electrolytic
|Philips
|
|
|-
|C27,C46
|2
|1 µF
|50 V
|Axial
|4.8 mm Dia.
|12 mm
|85 °C
|Aluminum Electrolytic
|Gelec
|
|
|0 µF
|-
|
|C44,C45
|
|2
|
|100 µF
|
|16 V
|
|Axial
|0 °C
|6.5 mm Dia.
|
|16 mm
|85 °C
|Aluminum Electrolytic
|Gelec
|
|
|-
|C74
|1
|4.7  µF
|50 V
|Axial
|4.8 mm Dia.
|12 mm
|85 °C
|Aluminum Electrolytic
|Philips
|
|
|}
|}
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===Spectrum motherboard Issue 3===
===Spectrum motherboard Issue 3===
{| class="wikitable sortable"
{| class="wikitable sortable"
|+Capacitors
|+Replacement Radial Capacitors
!RefDes
!RefDes
!Qty
!Qty
Line 137: Line 205:
!Order Links
!Order Links
|-
|-
|
|C25, C28, C34, C47, C50, C65
|
|6
|
|860010472003 / 50YXF22MEFCTA5X11
|[https://www.digikey.com/ Digikey]
|[https://www.digikey.com/en/products/detail/w%C3%BCrth-elektronik/860010472003/5728582 Digikey] [https://www.mouser.com/ProductDetail/Wurth-Elektronik/860010472003?qs=0KOYDY2FL29m3c71CGm9mg%3D%3D Mouser] [https://www.lcsc.com/product-detail/Aluminum-Electrolytic-Capacitors-Leaded_Rubycon-50YXF22MEFCTA5X11_C365695.html LCSC]
|-
|C27, C46
|2
|860020672005 / 50YXF1MEFCTA5X11
|[https://www.digikey.com/en/products/detail/w%C3%BCrth-elektronik/860020672005/5728796 DigiKey] [https://www.mouser.com/ProductDetail/Wurth-Elektronik/860020672005?qs=0KOYDY2FL29w5cS8aahRvQ%3D%3D Mouser] [https://www.lcsc.com/product-detail/Aluminum-Electrolytic-Capacitors-Leaded_Rubycon-50YXF1MEFCTA5X11_C432315.html LCSC]
|-
|C44, C45
|2
|860010372006 / 16PX100MEFC5X11
|[https://www.digikey.com/en/products/detail/w%C3%BCrth-elektronik/860010372006/5728555 DigiKey] [https://www.mouser.com/ProductDetail/Wurth-Elektronik/860010372006?qs=0KOYDY2FL29Ggp2VaG847w%3D%3D Mouser] [https://www.lcsc.com/product-detail/Aluminum-Electrolytic-Capacitors-Leaded_Rubycon-16PX100MEFC5X11_C88753.html LCSC]
|-
|C74
|1
|860020672008 / 50PX4R7MEFC5X11
|[https://www.digikey.com/en/products/detail/w%C3%BCrth-elektronik/860020672008/5728799 DigiKey] [https://www.mouser.com/ProductDetail/Wurth-Elektronik/860020672008?qs=0KOYDY2FL29ss4NKHUPOsQ%3D%3D Mouser] [https://www.lcsc.com/product-detail/Aluminum-Electrolytic-Capacitors-Leaded_Rubycon-50PX4R7MEFC5X11_C122950.html LCSC]
|}
{| class="wikitable sortable"
|+Replacement Axial Capacitors
!RefDes
!Qty
!Compatible Part Number
!Order Links
|-
|C25, C28, C34, C47, C50, C65
|6
|MAL203036229E3
|[https://www.digikey.com/en/products/detail/vishay-beyschlag-draloric-bc-components/MAL203036229E3/5632198 Digikey] [https://www.mouser.com/ProductDetail/Vishay-BC-Components/MAL203036229E3?qs=4T%252B5yYZyZYfHFbw03iMpnw%3D%3D Mouser]
|-
|C27, C46
|2
|105TTA050M
|[https://www.digikey.com/en/products/detail/cornell-dubilier-illinois-capacitor/105TTA050M/5410603 DigiKey] [https://www.mouser.com/ProductDetail/CDE-Illinois-Capacitor/105TTA050M?qs=UG%2F8xqv%2F6WfG1nPz8JgKXw%3D%3D Mouser]
|-
|C44, C45
|2
|107BPA016M
|[https://www.digikey.com/en/products/detail/cornell-dubilier-illinois-capacitor/107BPA016M/5410731 DigiKey] [https://www.mouser.com/ProductDetail/CDE-Illinois-Capacitor/107BPA016M?qs=3tP%252BN51vMXcmVaYjLpsFVA%3D%3D Mouser]
|-
|C74
|1
|475TTA050M
|[https://www.digikey.com/en/products/detail/cornell-dubilier-illinois-capacitor/475TTA050M/5412738 DigiKey] [https://www.mouser.com/ProductDetail/Cornell-Dubilier-CDE/475TTA050M?qs=3tP%252BN51vMXdn7LI1ODkIcw%3D%3D Mouser]
|}
|}
''If parts are not available or different selection is preferred, you can use the values in the [[#Original_Parts|Original Parts]] section to perform a parametric search.''
''If parts are not available or different selection is preferred, you can use the values in the [[#Original_Parts|Original Parts]] section to perform a parametric search.''
Line 146: Line 256:
==References==
==References==
<references />
<references />
[[Category:WorkNeeded:General]]
[[Category:WorkNeeded:ReplacementParts]]
[[Category:Computer]]
[[Category:Computer]]
[[Category:Motherboard]]
[[Category:Motherboard]]
[[Category:Microcomputer]]
[[Category:1980s]]
[[Category:Sinclair]]

Latest revision as of 00:53, 26 May 2024

For more information, see this article's corresponding Wikipedia page: ZX Spectrum.
Sinclair Spectrum
Preliminary Information
Release Year 1982
Leak Risk Medium
Batteries None
Mounting Technology Through Hole, Sockets
Capacitor Types Aluminum Electrolytic, Ceramic, Polymer
Destructive Entry No
Hardware Specifications
CPU Z80A
Memory Capacity 16-48 kB
Graphics 15 colors, 256×192

The ZX Spectrum from Sinclair Research was introduced in 1982 and sold up until 1992, becoming the bestselling home computer in the UK until it lost its title to the Raspberry Pi. It is based on a Zilog Z80A 8-bit microprocessor and came with 16 or 48 KB of RAM. It could produce 15 different colors at a resolution of 256×192.

Known Issues

Symptom or Problem Encountered

Causes

  • Description of cause

Solutions

  • Solution to the problem

Disassembly Notes

A Spectrum 48K is easy to disassemble:

Remove the five screws from the back. Carefully open the case then lift the front edge you will see the keyboard connections to the motherboard, ease these connections out because they are easily damaged. Note that if the Keyboard is the original it is likely to be non-functional.

Original Parts

Spectrum motherboard Issue 2.

Picture of Sinclair Spectrum issue 2 motherboard showing capacitor positions and values
Sinclair Spectrum issue 2 motherboard capacitors

Note the reversed polarity on the silk screen for capacitor C46.

Capacitor Specifications and Footprint Information
Qty Capacitance Voltage Mount Diameter/Size Height Temp Type Brand Series
C25,C28,C34,C47,C50,C65 6 22 µF 16 V Axial 4.8 mm Dia. 12 mm 85 °C Aluminum Electrolytic Gelec
C27,C46 2 1 µF 50 V Axial 4.8 mm Dia. 12 mm 85 °C Aluminum Electrolytic Gelec
C44,C45 2 100 µF 16 V Axial 6.5 mm Dia. 16 mm 85 °C Aluminum Electrolytic Gelec

Replacement Parts

Spectrum motherboard Issue 2

Replacement Radial Capacitors
RefDes Qty Compatible Part Number Order Links
C25, C28, C34, C47, C50, C65 6 860020372002 / 50YXF22MEFCTA5X11 Digikey Mouser LCSC
C27, C46 2 860020672005 / 50YXF1MEFCTA5X11 DigiKey Mouser LCSC
C44, C45 2 860010372006 / 16PX100MEFC5X11 DigiKey Mouser LCSC
Replacement Axial Capacitors
RefDes Qty Compatible Part Number Order Links
C25, C28, C34, C47, C50, C65 6 MAL213835229E3 Digikey Mouser
C27, C46 2 105TTA050M DigiKey Mouser
C44, C45 2 107BPA016M DigiKey Mouser

If parts are not available or different selection is preferred, you can use the values in the Original Parts section to perform a parametric search.

Original Parts

Spectrum motherboard Issue 3

Picture of Sinclair Spectrum issue 2 motherboard showing capacitor positions and values
Sinclair Spectrum issue 3 motherboard capacitors
Capacitor Specifications and Footprint Information
RefDes Qty Capacitance Voltage Mount Diameter/Size Height Temp Type Brand Series
C25,C28,C34,C47,C50,C65 6 22 µF 25 V Axial 4.8mm 12 mm 85 °C Aluminum Electrolytic Philips
C27,C46 2 1 µF 50 V Axial 4.8 mm Dia. 12 mm 85 °C Aluminum Electrolytic Gelec
C44,C45 2 100 µF 16 V Axial 6.5 mm Dia. 16 mm 85 °C Aluminum Electrolytic Gelec
C74 1 4.7 µF 50 V Axial 4.8 mm Dia. 12 mm 85 °C Aluminum Electrolytic Philips

Replacement Parts

Spectrum motherboard Issue 3

Replacement Radial Capacitors
RefDes Qty Compatible Part Number Order Links
C25, C28, C34, C47, C50, C65 6 860010472003 / 50YXF22MEFCTA5X11 Digikey Mouser LCSC
C27, C46 2 860020672005 / 50YXF1MEFCTA5X11 DigiKey Mouser LCSC
C44, C45 2 860010372006 / 16PX100MEFC5X11 DigiKey Mouser LCSC
C74 1 860020672008 / 50PX4R7MEFC5X11 DigiKey Mouser LCSC
Replacement Axial Capacitors
RefDes Qty Compatible Part Number Order Links
C25, C28, C34, C47, C50, C65 6 MAL203036229E3 Digikey Mouser
C27, C46 2 105TTA050M DigiKey Mouser
C44, C45 2 107BPA016M DigiKey Mouser
C74 1 475TTA050M DigiKey Mouser

If parts are not available or different selection is preferred, you can use the values in the Original Parts section to perform a parametric search.

References

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