blog:x68000_pro_cap_list [Target-Earth]

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====== Sharp X68000 Pro (CZ-652) Capacitor List ======

=== Main & Sub Boards ===

Following the visual check, I made a list of all the (electrolytic) capacitors on the boards:

{{:blog:img20200806212605.jpg?700|}}

^ Number ^ Board ^ Capacitance ^ Voltage ^ Temperature Rating ^ Notes ^
| C1	 | Main  |0.47uf |50v |85c | |	
| C5	 | Main  |220uf |6.3v |85c | |	
| C12	 | Main  |330uf |6.3v |85c | |	
| C13	 | Main  |100uf |16v |85c | |	
| C15	 | Main  |330uf |16v |85c | |	
| C16	 | Main  |470uf |6.3v |85c | |	
| C38	 | Main  |4.7uf |50v |85c | |	
| C39	 | Main  |4.7uf |50v |85c | |	
| C40	 | Main  |470uf |10v |85c | |	
| C41	 | Main  |470uf |10v |85c | |	
| C43	 | Main  |470uf |10v |85c | |	
| C44	 | Main  |3300uf |6.3v |85c |Large cap near rear IO panel|	
| C47	 | Main  |4.7uf |50v |85c | |	
| C48	 | Main  |4.7uf |50v |85c | |	
| C49	 | Main  |4.7uf |50v |85c | |
| C50	 | Main  |100uf |10v |85c | |
| C56	 | Main  |33uf  |10v |85c | |
| C201	 | Sub   |100uf |6.3v |85c | |	
| C202	 | Sub   |100uf |10v |85c | |	
| C203	 | Sub   |100uf |10v |85c | |	
| C204	 | Sub   |330uf |6.3v |85c | |	
| C205	 | Sub   |47uf |16v |85c | |
| C207   | Sub   |10uf |16v |85c | |	
| C210	 | Sub   |47uf |16v |85c | |
| C211   | Sub   |100uf |6.3v|85c | |	
| C213	 | Sub   |4.7uf |50v |85c | |	
| C214	 | Sub   |47uf |16v |85c | |	
| C215	 | Sub   |47uf |16v |85c | |	
| C218	 | Sub   |100uf |6.3v |85c | |	
| C220	 | Sub   |4.7uf |50v |85c | |	
| C221	 | Sub   |4.7uf |50v |85c | |	
| C222	 | Sub   |47uf |16v |85c | |	
| C223	 | Sub   |330uf |6.3v |85c | |	
| C224	 | Sub   |100uf |16v |85c | |	
| C225	 | Sub   |100uf |6.3v |85c | |	
| C226	 | Sub   |100uf |16v |85c | |	
| c227	 | Sub   |0.47uf |50v |85c | |	
| C231	 | Sub   |0.47uf |50v |85c | |	
| C232	 | Sub   |1uf |50v |85c | |	
| C233	 | Sub   |0.47uf |50v |85c | |	
| C234	 | Sub   |100uf |10v |85c | |	
| C238	 | Sub   |0.47uf |50v |85c | |	
| C239	 | Sub   |0.47uf |50v |85c | |
| C240	 | Sub   |330uf |6.3v |85c | |
| C241	 | Sub   |100uf |16v |85c | Failed |	
| C242	 | Sub   |330uf |6.3v |85c | |	
| C243	 | Sub   |100uf |16v |85c | Failed |
| C244	 | Sub   |330uf |16v |85c | |
| C249   | Sub   |1uf |50v |85c | |
| C251   | Sub   |22uf |16v |85c | |
| C255	 | Sub   |4.7uf |50v |85c | |	
| C256	 | Sub   |47uf |16v |85c | |	
| C262	 | Sub   |330uf |16v |85c | |	
| R221	 | Sub   |47uf |16v |85c | Cant make the number out, but its next to R221.|

Yes, that's right; there are more than **50** electrolytic capacitors on the motherboard.

Quantities:

   * **6x** 0.47uF, 50v
   * **9x** 4.7uF, 50v
   * **2x** 1uF, 50v
   * **1x** 10uF, 16v
   * **1x** 22uF, 16v
   * **1x** 33uF, 10v
   * **7x** 47uF, 16v
   * **3x** 100uF, 6.3v
   * **4x** 100uF, 10v
   * **5x** 100uF, 16v
   * **1x** 220uF, 6.3v
   * **5x** 330uF, 6.3v
   * **3x** 330uF, 16v
   * **1x** 470uF, 6.3v
   * **3x** 470uF, 10v
   * **1x** 3300uF, 6.3v

----

=== Floppy & Audio Riser Board ===

{{:blog:img20200804165741.jpg?700|}}

^ Number ^ Location   ^ Capacitance ^ Voltage    ^
| C401   | SCSI riser | 1uF         | 50v        |
| C402   | SCSI riser | 4.7uF       | 50v        |
| C403   | SCSI riser | 4.7uF       | 50v        |

----

=== Floppy Drives ===

{{:blog:img20200804111656.jpg?700|}}

Note: The capacitor lists here only apply to the X68000 Pro with floppy drive model **"Sharp CMECF0015CE01"**, also known as **"TEAC FD-55GFR - Part numer 19307350-60"**. Do not use this list for any other drive type:

^ Number ^ Location             ^ Capacitance ^ Voltage    ^ Notes ^
| C1     | Edge connector board | ???         | ???        | This is an all-black part with no rating label!  |
| C2     | Edge connector board | 22uF        | 10v        |       |
| C3     | Edge connector board | 100uF       | 10v        |       |
| C4     | Edge connector board | 10uF        | 25v        |       | 
| C11    | Edge connector board |             |            | Ceramic, labelled as: SR 104M 12v     | 
| C12    | Edge connector board |             |            | Ceramic, labelled as: SR 104M 12v     | 
| C23    | Edge connector board | 6.8uF       | 50v        |       |
| C24    | Edge connector board | Not fitted  | Not fitted |       |
| C25    | Edge connector board | 6.8uF       | 50v        |       |
| C26    | Edge connector board | Not fitted  | Not fitted |       |
| C54    | Motorised eject board| 22uF        | 25v        | The only electrolytic cap on the board. |
| C101   | Drive spindle board  | 22uF        | 16V        |       |
| C104   | Drive spindle board  |             |            | Ceramic, labelled as: 16X 100M |
| C107   | Drive spindle board  | 0.47uF      | 50v        |       |

Remember that you need twice as many as listed above to do //both// drives, so the actual part list is:

   * **2x** 0.47uF, 50v
   * **4x** 6.8uF, 50v
   * **2x** 10uF, 25v
   * **2x** 22uF, 10v
   * **2x** 22uF, 16v
   * **2x** 22uF, 25v
   * **2x** 100uF, 10v