Sinclair Spectrum: Difference between revisions

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{{WikipediaInfoAlt|ZX Spectrum}}
{{WikipediaInfoAlt|ZX Spectrum}}  
{{DeviceAlerts}}
 
{{InfoboxDevice
{{InfoboxDevice
|Title = Sinclair Spectrum
|Title = Sinclair Spectrum
Line 10: Line 10:
|Batteries = None
|Batteries = None
|Destructive Entry = No
|Destructive Entry = No
}}
|CPU=Z80A|Memory=16-48 kB|Graphics=15 colors, 256×192}}
This is a template page for creating new pages for devices, troubleshooting them, part lists, and other repair info.
 
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==
Line 24: Line 25:
A Spectrum 48K is easy to disassemble:  
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 connection out because they are easily damaged. Note that if the Keyboard is the original it is likely to be non-functional.  
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==
==Original Parts==
Line 39: Line 40:
!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 45: Line 45:
!Series
!Series
|-
|-
|C25,C28,C44,C47,C50,C65
|C25,C28,C34,C47,C50,C65
|6
|6
|220 µF
|22 µF
|16
|16 V
|Axial
|Axial
|4.8 mm Dia.
|4.8 mm Dia.
|12 mm
|12 mm
|
|85 °C
|85 °C
|Aluminum Electrolytic
|Aluminum Electrolytic
Line 61: Line 60:
|2
|2
|1 µF
|1 µF
|50
|50 V
|Axial
|Axial
|4.8 mm Dia.
|4.8 mm Dia.
|12 mm
|12 mm
|
|85 °C
|85 °C
|Aluminum Electrolytic
|Aluminum Electrolytic
Line 74: Line 72:
|2
|2
|100 µF
|100 µF
|16
|16 V
|Axial
|Axial
|6.5 mm Dia.
|6.5 mm Dia.
|16 mm
|16 mm
|
|85 °C
|85 °C
|Aluminum Electrolytic
|Aluminum Electrolytic
Line 86: Line 83:


==Replacement Parts==
==Replacement Parts==
===Basic PCB Name===
===Spectrum motherboard Issue 2===
{| class="wikitable sortable"
|+Replacement Radial Capacitors
!RefDes
!Qty
!Compatible Part Number
!Order Links
|-
|C25, C28, C34, C47, C50, C65
|6
|860020372002 / 50YXF22MEFCTA5X11
|[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"
{| class="wikitable sortable"
|+Capacitors
|+Replacement Axial Capacitors
!RefDes
!RefDes
!Qty
!Qty
Line 94: Line 113:
!Order Links
!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.''
== Original Parts ==
=== 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"
|+Capacitor [[Capacitor Specifications|Specifications]] and  [[Part Footprints|Footprint]] Information
!RefDes
!Qty
!Capacitance
!Voltage
![https://caps.wiki/wiki/Part_Footprints Mount]
!Diameter/Size
!Height
!Temp
![https://caps.wiki/wiki/Capacitor_Types 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
|
|
|[https://www.digikey.com/ Digikey]
|}
 
==Replacement Parts==
===Spectrum motherboard Issue 3===
{| class="wikitable sortable"
|+Replacement Radial Capacitors
!RefDes
!Qty
!Compatible Part Number
!Order Links
|-
|C25, C28, C34, C47, C50, C65
|6
|860010472003 / 50YXF22MEFCTA5X11
|[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.''
===Kits===
*Digikey BOM: https://www.digikey.com/
==Related Links==
*[https://www.youtube.com Videos or other things that might be helpful to check out]


==References==
==References==
<references />
<references />
 
[[Category:Computer]]
[[Category:WorkNeeded:General]]
[[Category:Motherboard]]
[[Category:WorkNeeded:OriginalParts]]
[[Category:Microcomputer]]
[[Category:WorkNeeded:ReplacementParts]]
[[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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