Casio Loopy: Difference between revisions

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=== Main board - revision B - JCM631-MA1M B ===
=== Main board - revision B - JCM631-MA1M B ===
TODO
{| 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
![https://caps.wiki/wiki/Capacitor_Types Type]
|-
|C1, C55, C153, C156, C273
|5
|22µF
|6.3V
|SMD
|4mm
|5mm
|Aluminium Electrolytic
|-
|C59
|1
|10µF
|35V
|SMD
|5mm
|5mm
|Aluminium Electrolytic
|-
|C60, C254, C255, C263, C264, C265, C266, C410
|8
|10µF
|10V
|SMD
|4mm
|5mm
|Aluminium Electrolytic
|-
|C261
|1
|1µF
|50V
|SMD
|4mm
|5mm
|Aluminium Electrolytic
|-
|C283, C302, C352, C404, C423, C424
|6
|100µF
|6.3V
|SMD
|6mm
|5mm
|Aluminium Electrolytic
|}


=== Main board - revision C - JCM631-MA1M C ===
=== Main board - revision C - JCM631-MA1M C ===
TODO
Capacitor values are the same as revision B, some SMD parts replaced with through-hole.
{| 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
!Lead Spacing
!Temp
![https://caps.wiki/wiki/Capacitor_Types Type]
!Brand
!Series
|-
|C1
|1
|22µF
|6.3V
|Through Hole
|4mm
|6mm
|5mm
|85°C
|Electrolytic
|Elna
|RC3?
|-
|C59
|1
|10µF
|35V
|Through Hole
|5mm
|6mm
|5mm
|85°C
|Electrolytic
|Elna
|RC3?
|-
|C60
|1
|10µF
|10V
|Through Hole
|4mm
|6mm
|5mm
|85°C
|Electrolytic
|Elna
|RC3?
|-
|C55, C153, C156, C273
|4
|22µF
|6.3V
|SMD
|4mm
|5mm
|
|
|Aluminium Electrolytic
|
|
|-
|C254, C255, C263, C264, C265, C266, C410
|7
|10µF
|10V
|SMD
|4mm
|5mm
|
|
|Aluminium Electrolytic
|
|
|-
|C261
|1
|1µF
|50V
|SMD
|4mm
|5mm
|
|
|Aluminium Electrolytic
|
|
|-
|C283, C302, C352, C404, C423, C424
|6
|100µF
|6.3V
|SMD
|6mm
|5mm
|
|
|Aluminium Electrolytic
|
|
|}


=== IO board - all revisions - JCM631-MA2M ===
=== IO board - all revisions - JCM631-MA2M ===
Line 99: Line 260:
|85°C
|85°C
|Electrolytic
|Electrolytic
|ELNA
|Elna
|RE3
|RE3
|-
|-
Line 112: Line 273:
|85°C
|85°C
|Electrolytic
|Electrolytic
|ELNA
|Elna
|RE2
|RE2
|-
|-
Line 125: Line 286:
|85°C
|85°C
|Electrolytic
|Electrolytic
|ELNA
|Elna
|RE2
|RE2
|-
|-
Line 138: Line 299:
|85°C
|85°C
|Electrolytic
|Electrolytic
|ELNA
|Elna
|RE2
|RE2
|-
|-
Line 151: Line 312:
|85°C
|85°C
|Electrolytic
|Electrolytic
|ELNA
|Elna
|RE2
|RE2
|-
|-
Line 164: Line 325:
|85°C
|85°C
|Electrolytic
|Electrolytic
|ELNA
|Elna
|RE2
|RE2
|-
|-
Line 177: Line 338:
|85°C
|85°C
|Electrolytic
|Electrolytic
|ELNA
|Elna
|RE2
|RE2
|}
|}


==Replacement Parts==
==Replacement Parts==

Revision as of 23:32, 6 August 2024

A game console with a color sticker "seal" printer, released by Casio in 1995 and mainly marketed towards girls.

For more information, see this article's corresponding Wikipedia page: Casio_Loopy.
This device is in the WorkNeeded:ReplacementParts category because it was flagged as missing information on replacement parts. If it has the original parts listed you may be able to search for replacements using the parametric searches available from parts distributors. If you have or make a list of replacement parts, please feel free to add them by copying the relevant table from EditorsToolbox:Tables
Casio Loopy
Preliminary Information
Release Year 1995
Leak Risk Medium
Batteries None
Mounting Technology Through Hole, SMD
Capacitor Types Aluminum Electrolytic, Ceramic
Destructive Entry No


Known Issues

High chance of leakage on IO board

Causes

  • C504 installed backwards on all revisions due to incorrect board markings. If it hasn't leaked yet, it probably will.

Solutions

  • Replace C504 with a new cap in the correct orientation.
  • Alternatively leave C504 unpopulated, no noticeable change in operation.

Audio is quiet or has uneven stereo levels

Causes

  • Dry capacitors in audio path.

Solutions

  • Replace C254-C255, C261, and C263-C266. Total 7 caps, along the rear edge and rear-right corner of the main board.
  • Capacitor type is not critical here. Ceramics of the same or greater capacitance value can be used but may change the sound slightly.

Video is dark, unstable, or has a visible gradient

Causes

  • Dry capacitors in video path.

Solutions

  • Replace C501, C502 and C533 on the IO board.
  • Higher capacitance value can be used to improve video quality.

Disassembly Notes

Remove screws on the bottom and then knock the top shell sideways to open. Lay the top shell flat in front of the console and unscrew the LED board. Be sure not to lose the printer bezel and cutter button as they are held in loosely.

To access the IO board:

  • Unplug the two rearmost IO cables from the main board (CB and CC). The cables cannot be unplugged at the IO board end.
  • Unscrew the printer module's lower 4 screws and lift it towards the front of the console, be careful with the ribbon cable.
  • Unscrew the 4 screws holding the shield and IO board down
  • Remove the shield and slide the board out towards the front.

To access the main board:

  • Remove the black eject lever by unhooking the spring, unscrewing the right end clamp, angling upwards and sliding to the right.
  • Unplug all cables from the right edge of the main board.
  • Unscrew the grounding wire from the printer module.
  • Unscrew the 6 screws holding the shield and main board down, and the 2 screws on the cartridge connector.
  • Remove the shield and lift the board up and towards the rear.

Ensure the power switch, printer bezel and cutter button are properly aligned when reassembling. Can be reassembled without shields and eject lever for testing.

Original Parts

Main board - revision B - JCM631-MA1M B

Capacitor Specifications and Footprint Information
RefDes Qty Capacitance Voltage Mount Diameter/Size Height Type
C1, C55, C153, C156, C273 5 22µF 6.3V SMD 4mm 5mm Aluminium Electrolytic
C59 1 10µF 35V SMD 5mm 5mm Aluminium Electrolytic
C60, C254, C255, C263, C264, C265, C266, C410 8 10µF 10V SMD 4mm 5mm Aluminium Electrolytic
C261 1 1µF 50V SMD 4mm 5mm Aluminium Electrolytic
C283, C302, C352, C404, C423, C424 6 100µF 6.3V SMD 6mm 5mm Aluminium Electrolytic

Main board - revision C - JCM631-MA1M C

Capacitor values are the same as revision B, some SMD parts replaced with through-hole.

Capacitor Specifications and Footprint Information
RefDes Qty Capacitance Voltage Mount Diameter/Size Height Lead Spacing Temp Type Brand Series
C1 1 22µF 6.3V Through Hole 4mm 6mm 5mm 85°C Electrolytic Elna RC3?
C59 1 10µF 35V Through Hole 5mm 6mm 5mm 85°C Electrolytic Elna RC3?
C60 1 10µF 10V Through Hole 4mm 6mm 5mm 85°C Electrolytic Elna RC3?
C55, C153, C156, C273 4 22µF 6.3V SMD 4mm 5mm Aluminium Electrolytic
C254, C255, C263, C264, C265, C266, C410 7 10µF 10V SMD 4mm 5mm Aluminium Electrolytic
C261 1 1µF 50V SMD 4mm 5mm Aluminium Electrolytic
C283, C302, C352, C404, C423, C424 6 100µF 6.3V SMD 6mm 5mm Aluminium Electrolytic

IO board - all revisions - JCM631-MA2M

Also known as power board, power AV board.

Capacitor Specifications and Footprint Information
RefDes Qty Capacitance Voltage Mount Diameter/Size Height Lead Spacing Temp Type Brand Series
C501 1 470µF 6.3V Through Hole 7mm 12mm 5mm 85°C Electrolytic Elna RE3
C502 1 330µF 6.3V Through Hole 7mm 12mm 5mm 85°C Electrolytic Elna RE2
C504 1 100µF 10V Through Hole 5mm 11mm 5mm 85°C Electrolytic Elna RE2
C509 1 1000µF 35V Through Hole 13mm 25mm 5mm 85°C Electrolytic Elna RE2
C522, C524, C526, C527 4 470µF 10V Through Hole 8mm 12mm 5mm 85°C Electrolytic Elna RE2
C532 1 100µF 35V Through Hole 8mm 12mm 5mm 85°C Electrolytic Elna RE2
C533 1 100µF 6.3V Through Hole 5mm 11mm 5mm 85°C Electrolytic Elna RE2


Replacement Parts

Basic PCB Name

Capacitors
RefDes Qty Compatible Part Number Order Links
Digikey

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.

Related Links

References

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