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:
| 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
| Number | Location | Capacitance | Voltage |
|---|---|---|---|
| C401 | SCSI riser | 1uF | 50v |
| C402 | SCSI riser | 4.7uF | 50v |
| C403 | SCSI riser | 4.7uF | 50v |
Floppy Drives
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