Recap guide
Recap the Commodore 1084 monitor
Taicon-brand caps and the vertical-deflection electrolytics are the usual troublemakers, and a pinched picture is one reported result. Guides cover the 1084S and its sibling, the Amiga 1081.
Open the interactive checklist Tick off each capacitor as you replace it. It saves in your browser.
Worth a recap. Reports say it is a common and useful fix on this machine.
Which board do I have?
Boards changed during production. These notes come from the linked sources, and many are only partly documented, so check the board in front of you.
- 1084S-D (Low confidence). How to tell: Variant suffix as printed on the monitor; an EEVblog thread notes the 1084S-D has no vertical linearity trimpot unlike other 1084S variants. Capacitors: In that thread vertical distortion was fixed by replacing C306 (47uF) and C307 (1000uF 25V). Capacitor list differs from other revisions: not known. Source
- 1084S-D2 (Medium confidence). How to tell: 13 inch 1992 Taiwan built version per CRT Database, with S-Video and RGB inputs. Capacitors: CRT Database says Taicon brand caps have a high failure rate and points to a full cap list; it also describes a D2 to D1 digital RGBi conversion. Capacitor list differs from other revisions: not known. Source
- 1084S-P (Philips built) (Low confidence). How to tell: A 1988 repair bulletin covers 1084S-P monitors made by Philips from June to September 1988. Capacitors: That bulletin's repair kit fixes high voltage loss with C476 (0.047uF mylar) and C356 and C561 ceramics, not electrolytics. Capacitor list differs from other revisions: not known. Source
Where to start
Clues from write-ups and forum threads, not a diagnosis. Low confidence means one thread or one repair; high means several write-ups agree.
- Taicon caps (Medium confidence). The CRT Database page flags Taicon-brand caps as having a high failure rate and includes a capacitor list with ratings. Source
- Pinched or distorted picture (Low confidence). In one forum thread on a 1084S-D, replacing two caps fixed vertical linearity. One report names C306 (47uF, dead) and C307 (1000uF, replaced) for a pinched picture. Source
Tips, tales and maybes
Found in write-ups and forum threads. These are other people's reports, not tested by us. Check part references and values against your own board.
- Tip: Power switch latches break (Medium confidence). The CRT Database page says the most common 1084S-D2 failure is the plastic power switch latches breaking, and suggests taping the switch on and using a power strip or fitting a matching SPDT switch, before the recap work. Source
- Story: 1084S-D recap with glue disease (Medium confidence). A restoration of a distorted 1084S-D with wavy RGB outlines found a bulging 220uF 400V supply cap, cracked joints, Daewoo glue disease, a loose cap on the video board and a failed TC4066BP swapped for a CD4066BE. The TDA1670A degauss IC was also replaced. Source
- Story: Folded sides after a flyback swap (Low confidence). A 1084S-P1 with the image folded at the right edge kept the fault after a new flyback and a replacement for C2515 (1uF), which had measured about 250nF with high ESR. The cause was still open at the end of the thread. Source
- Story: No image, filament barely heating (Low confidence). On a 1084S with no image and a barely heated filament, the owner wound extra turns on the line output transformer core for heater voltage. Replies said far fewer turns would do and suspected a secondary supply fault instead. Source
- Tip: 1081 bipolar cap C473 can explode (Medium confidence). An Amiga 1081 monitor page (a sibling of the 1084) says the bipolar cap C473 needs special care, a commenter warning that ordinary small electrolytics will explode and suggesting MKP polypropylene instead, physically larger. It also notes some boards lack C496 and C497 and some have C566. Source
Before you start
- Boards changed during production. Check your board number against the guides before you order parts.
- A tube and its high-voltage circuit can hold a lethal charge. Do not open the tube, and leave the analog board to a professional.
Manuals and technical documents
Service manuals, schematics and datasheets for this machine, kept in our own library. Check your own board and part numbers against them.
- Service Manual Model 1701 - 1702 PN-314004-01 (Service manual)
All 1 documents for Commodore 1084 monitor in the library
Guides we used
This page and the interactive bench are built from these. They have the photos and the full detail, so please read them and support their authors.
- Commodore 1084S-D2 (CRT Database) (List) by crtdatabase.com. Has a capacitor list. Page includes a capacitor list with ratings, service manual links and common faults (Taicon caps, power switch latch)
- CRT monitor display distortion problem (Forum) by EEVblog forum. 1084S-D worked example: vertical linearity fix by replacing two caps; also notes brown glue residue
- Amiga 1081 - Old Crap Vintage Computing (List) by oldcrap.org. Has a capacitor list. Sibling model 1081; capacitor list given as an image; warns small radial electrolytics used for bipolar spots can explode, suggests film caps
- 1084S-P Monitor Repair Kit 314891-01 (Manual) by Commodore service bulletin (funet.fi archive). Has a capacitor list. Service bulletin for loss of high voltage: line output transformer plus C476, C356, C561; not a general recap list
Daewoo 1084-D and 1084S-D main PCB
Forty-three S-D positions, plus nine that appear only in the S-D1 or S-D2 columns. Where those two columns differ, the note says so. Console5 shows C121 and C712 as not present on the S-D1.
| Part | Value | Volts | Type |
|---|---|---|---|
| C109 S-D2: 150 uF 400 V. | 140 µF | 400 V | check your board |
| C110 S-D1: 22 uF 50 V. S-D2: 22 uF 50 V. | 10 µF | 50 V | check your board |
| C111 | 1 µF | 50 V | check your board |
| C116 The S-D2 column uses C117 and C118 for this pair of 100 uF 160 V caps. | 100 µF | 160 V | check your board |
| C117 See C116. | 100 µF | 160 V | check your board |
| C120 | 470 µF | 35 V | check your board |
| C121 S-D1: not present. | 100 µF | 35 V | check your board |
| C217 | 1 µF | 50 V | check your board |
| C219 | 4.7 µF | 50 V | check your board |
| C220 | 1000 µF | 25 V | check your board |
| C222 S-D2: 10 uF 160 V. | 10 µF | 160 V | check your board |
| C226 | 10 µF | 50 V | check your board |
| C229 | 10 µF | 16 V | check your board |
| C232 | 220 µF | 16 V | check your board |
| C233 | 47 µF | 16 V | check your board |
| C235 | 3.3 µF | 50 V | check your board |
| C306 S-D2: 220 uF 16 V. | 47 µF | 25 V | check your board |
| C307 | 1000 µF | 35 V | check your board |
| C308 | 100 µF | 35 V | check your board |
| C309 | 470 µF | 35 V | check your board |
| C311 S-D1: 47 uF 63 V. S-D2: 47 uF 63 V. | 100 µF | 35 V | check your board |
| C312 S-D1: 10 uF 50 V. S-D2: 10 uF 50 V. | 100 µF | 16 V | check your board |
| C332 | 10 µF | 16 V | check your board |
| C403 | 470 µF | 16 V | check your board |
| C411 S-D2: 10 uF 50 V. | 10 µF | 16 V | check your board |
| C412 S-D2: 4.7 uF 35 V. | 4.7 µF | 16 V | check your board |
| C413 S-D2: 1 uF 50 V. | 1 µF | 16 V | check your board |
| C414 S-D2: 22 uF 25 V. | 22 µF | 16 V | check your board |
| C415 | 22 µF | 16 V | check your board |
| C417 | 47 µF | 16 V | check your board |
| C421 | 1000 µF | 16 V | check your board |
| C605 | 220 µF | 16 V | check your board |
| C620 S-D2: 10 uF 50 V. | 1 µF | 16 V | check your board |
| C621 S-D2: 10 uF 50 V. | 10 µF | 16 V | check your board |
| C703 S-D2: 47 uF 16 V. | 470 µF | 16 V | check your board |
| C707 | 47 µF | 16 V | check your board |
| C708 | 47 µF | 16 V | check your board |
| C709 | 47 µF | 16 V | check your board |
| C712 S-D1: not present. | 10 µF | 16 V | check your board |
| C801 | 0.1 µF | 50 V | check your board |
| C802 | 470 µF | 35 V | check your board |
| C805 | 1 µF | 16 V | check your board |
| C807 | 100 µF | 16 V | check your board |
| C118 Only in the S-D2 column. See C116. | 100 µF | 160 V | check your board |
| C130 Not in the S-D column. S-D1: 22 uF 50 V. S-D2: 1 uF 50 V. | 22 µF | 50 V | check your board |
| C236 Not in the S-D column. S-D1: 1 uF 50 V. S-D2: 1 uF 50 V. | 1 µF | 50 V | check your board |
| C237 Not in the S-D column. S-D1: 100 uF 50 V. S-D2: 100 uF 50 V. | 100 µF | 50 V | check your board |
| C239 Not in the S-D column. S-D1: 4.7 uF 50 V, marked NP. S-D2: 47 uF 35 V. | 4.7 µF | 50 V | check your board |
| C241 Not in the S-D column. S-D1: 1 uF 250 V. S-D2: 1 uF 250 V. | 1 µF | 250 V | check your board |
| C335 Not in the S-D column. S-D1: 1 uF 50 V. S-D2: 1 uF 50 V. | 1 µF | 50 V | check your board |
| C336 Not in the S-D column. S-D2: 470 uF 35 V. | 470 µF | 35 V | check your board |
| C423 Not in the S-D column. S-D1: 2.2 uF 50 V. | 2.2 µF | 50 V | check your board |
Daewoo stereo PCB (S-P versions)
Five capacitors. Console5 lists the audio positions C801 to C807 on the main PCB and relocated to this stereo board on S-P versions.
| Part | Value | Volts | Type |
|---|---|---|---|
| C810 | 100 µF | 35 V | check your board |
| C8011 Printed as C8011 in Console5's list. | 0.1 µF | 50 V | check your board |
| C8021 Printed as C8021 in Console5's list. | 470 µF | 35 V | check your board |
| C8051 Printed as C8051 in Console5's list. | 1 µF | 50 V | check your board |
| C8101 Printed as C8101 in Console5's list. | 100 µF | 35 V | check your board |
Daewoo neckboard
Three capacitors.
| Part | Value | Volts | Type |
|---|---|---|---|
| C508 | 100 µF | 16 V | check your board |
| C510 | 47 µF | 160 V | check your board |
| C512 | 47 µF | 16 V | check your board |
Philips 1084S-P (100 to 120 V, NTSC) main chassis
Forty capacitors. Console5 says it is very similar to the Commodore 1902A. Its other boards are listed separately.
| Part | Value | Volts | Type |
|---|---|---|---|
| C204 | 100 µF | 10 V | check your board |
| C205 | 100 µF | 10 V | check your board |
| C206 | 100 µF | 10 V | check your board |
| C214 | 100 µF | 16 V | check your board |
| C216 | 47 µF | 16 V | check your board |
| C232 | 47 µF | 16 V | check your board |
| C233 | 100 µF | 16 V | check your board |
| C234 | 1 µF | 50 V | check your board |
| C334 | 0.47 µF | 63 V | check your board |
| C345 | 10 µF | 16 V | check your board |
| C346 | 470 µF | 35 V | check your board |
| C347 | 100 µF | 35 V | check your board |
| C352 | 680 µF | 35 V | check your board |
| C361 | 47 µF | 16 V | check your board |
| C412 | 10 µF | 16 V | check your board |
| C433 | 100 µF | 16 V | check your board |
| C446 | 1 µF | 50 V | check your board |
| C447 | 4.7 µF | 25 V | check your board |
| C461 | 2.2 µF | 63 V | check your board |
| C462 | 22 µF | 35 V | check your board |
| C473 Bipolar, low ESR. | 4.7 µF | 50 V | check your board |
| C474 | 1 µF | 50 V | check your board |
| C482 | 1 µF | 50 V | check your board |
| C485 | 22 µF | 35 V | check your board |
| C491 | 470 µF | 25 V | check your board |
| C492 | 330 µF | 16 V | check your board |
| C493 | 470 µF | 35 V | check your board |
| C494 | 47 µF | 200 V | check your board |
| C505 | 100 µF | 10 V | check your board |
| C507 | 47 µF | 16 V | check your board |
| C511 | 100 µF | 16 V | check your board |
| C512 | 47 µF | 16 V | check your board |
| C537 | 47 µF | 16 V | check your board |
| C544 | 22 µF | 16 V | check your board |
| C562 | 100 µF | 16 V | check your board |
| C574 | 100 µF | 16 V | check your board |
| C585 | 4.7 µF | 25 V | check your board |
| C634 | 22 µF | 16 V | check your board |
| C636 | 22 µF | 16 V | check your board |
| C638 | 100 µF | 35 V | check your board |
Philips 1084S-P (NTSC) neck board
One capacitor.
| Part | Value | Volts | Type |
|---|---|---|---|
| C717 | 4.7 µF | 200 V | check your board |
Philips 1084S-P (NTSC) power supply board
Six capacitors.
| Part | Value | Volts | Type |
|---|---|---|---|
| C112 | 220 µF | 200 V | check your board |
| C116 | 47 µF | 16 V | check your board |
| C122 | 1 µF | 50 V | check your board |
| C144 | 47 µF | 200 V | check your board |
| C145 | 470 µF | 35 V | check your board |
| C146 | 470 µF | 25 V | check your board |
Philips 1084S-P (NTSC) audio board
Seven capacitors.
| Part | Value | Volts | Type |
|---|---|---|---|
| C390 | 1 µF | 50 V | check your board |
| C391 | 1 µF | 50 V | check your board |
| C382 | 4.7 µF | 25 V | check your board |
| C383 | 4.7 µF | 25 V | check your board |
| C396 | 220 µF | 16 V | check your board |
| C395 | 220 µF | 16 V | check your board |
| C394 | 1000 µF | 25 V | check your board |
Philips 1084S-P (NTSC) interface board
One capacitor, on the vertical riser board on the chassis.
| Part | Value | Volts | Type |
|---|---|---|---|
| C258 | 47 µF | 16 V | check your board |
Philips 1084 (220 to 240 V, PAL and SECAM) main chassis
Forty-four capacitors. Four are non-polar.
| Part | Value | Volts | Type |
|---|---|---|---|
| C204 | 100 µF | 10 V | check your board |
| C205 | 100 µF | 10 V | check your board |
| C206 | 100 µF | 10 V | check your board |
| C214 | 100 µF | 16 V | check your board |
| C216 | 47 µF | 16 V | check your board |
| C232 | 47 µF | 16 V | check your board |
| C233 | 100 µF | 16 V | check your board |
| C234 | 1 µF | 50 V | check your board |
| C318 | 22 µF | 16 V | check your board |
| C323 | 220 µF | 16 V | check your board |
| C324 | 1000 µF | 25 V | check your board |
| C334 | 0.47 µF | 63 V | check your board |
| C345 | 10 µF | 16 V | check your board |
| C346 | 470 µF | 35 V | check your board |
| C347 | 100 µF | 35 V | check your board |
| C352 | 680 µF | 35 V | check your board |
| C361 | 47 µF | 16 V | check your board |
| C401 | 2.2 µF | 16 V | check your board |
| C412 Non-polar. | 10 µF | 25 V | check your board |
| C433 | 100 µF | 16 V | check your board |
| C446 | 1 µF | 50 V | check your board |
| C447 | 4.7 µF | 25 V | check your board |
| C461 | 2.2 µF | 63 V | check your board |
| C462 | 22 µF | 35 V | check your board |
| C473 Non-polar, low ESR. | 4.7 µF | 50 V | check your board |
| C474 | 1 µF | 50 V | check your board |
| C482 | 1 µF | 50 V | check your board |
| C485 | 22 µF | 35 V | check your board |
| C491 | 470 µF | 25 V | check your board |
| C492 | 100 µF | 16 V | check your board |
| C493 | 470 µF | 35 V | check your board |
| C494 | 47 µF | 200 V | check your board |
| C505 Non-polar. | 10 µF | 25 V | check your board |
| C510 Non-polar. | 10 µF | 25 V | check your board |
| C512 | 47 µF | 16 V | check your board |
| C537 | 47 µF | 16 V | check your board |
| C544 | 22 µF | 16 V | check your board |
| C562 | 100 µF | 16 V | check your board |
| C566 | 1 µF | 63 V | check your board |
| C574 | 100 µF | 16 V | check your board |
| C585 | 4.7 µF | 25 V | check your board |
| C634 | 22 µF | 16 V | check your board |
| C636 | 22 µF | 16 V | check your board |
| C638 | 100 µF | 35 V | check your board |
Philips 1084 (PAL) neck board
One capacitor.
| Part | Value | Volts | Type |
|---|---|---|---|
| C717 | 4.7 µF | 200 V | check your board |
Philips 1084 (PAL) power supply board
Six capacitors.
| Part | Value | Volts | Type |
|---|---|---|---|
| C112 | 100 µF | 400 V | check your board |
| C116 | 47 µF | 16 V | check your board |
| C122 | 1 µF | 50 V | check your board |
| C144 | 47 µF | 200 V | check your board |
| C145 | 470 µF | 35 V | check your board |
| C146 | 470 µF | 25 V | check your board |
Philips 1084 (PAL) interface board
One capacitor.
| Part | Value | Volts | Type |
|---|---|---|---|
| C258 | 47 µF | 16 V | check your board |
Philips 1084S-P1, 1084S-P2, CM-11342 and CM-11362 main panel
Forty-one capacitors. Three are marked for Rev 3184.2 only.
| Part | Value | Volts | Type |
|---|---|---|---|
| 2266 | 4.7 µF | 25 V | check your board |
| 2268 | 2.2 µF | 63 V | check your board |
| 2269 | 22 µF | 50 V | check your board |
| 2272 | 22 µF | 50 V | check your board |
| 2274 | 100 µF | 16 V | check your board |
| 2291 | 1000 µF | 16 V | check your board |
| 2301 | 22 µF | 50 V | check your board |
| 2327 Rev 3184.2 only. | 22 µF | 50 V | check your board |
| 2328 Rev 3184.2 only. | 22 µF | 50 V | check your board |
| 2361 Rev 3184.2 only. | 10 µF | 50 V | check your board |
| 2412 | 100 µF | 400 V | check your board |
| 2416 | 10 µF | 50 V | check your board |
| 2422 | 1 µF | 50 V | check your board |
| 2445 Some revisions use 50 V. 35 V is fine. | 470 µF | 35 V | check your board |
| 2446 | 470 µF | 25 V | check your board |
| 2447 | 470 µF | 25 V | check your board |
| 2450 | 10 µF | 50 V | check your board |
| 2451 | 47 µF | 200 V | check your board |
| 2452 | 22 µF | 50 V | check your board |
| 2511 | 2.2 µF | 63 V | check your board |
| 2512 | 22 µF | 50 V | check your board |
| 2515 | 1 µF | 250 V | check your board |
| 2520 | 10 µF | 160 V | check your board |
| 2524 Bipolar, low ESR. | 4.7 µF | 50 V | check your board |
| 2526 | 1 µF | 50 V | check your board |
| 2536 | 1 µF | 50 V | check your board |
| 2537 | 22 µF | 50 V | check your board |
| 2541 | 22 µF | 50 V | check your board |
| 2547 | 2.2 µF | 63 V | check your board |
| 2560 | 220 µF | 35 V | check your board |
| 2561 | 220 µF | 35 V | check your board |
| 2563 Some revisions use 50 V. 35 V is fine. | 470 µF | 35 V | check your board |
| 2571 | 680 µF | 35 V | check your board |
| 2573 | 1.5 µF | 63 V | check your board |
| 2601 | 100 µF | 16 V | check your board |
| 2604 | 1 µF | 50 V | check your board |
| 2640 | 100 µF | 16 V | check your board |
| 2647 | 4.7 µF | 25 V | check your board |
| 2669 | 10 µF | 50 V | check your board |
| 2696 | 47 µF | 16 V | check your board |
| 2697 | 47 µF | 16 V | check your board |
Philips 1084S-P1 and P2 headphone panel
One capacitor.
| Part | Value | Volts | Type |
|---|---|---|---|
| 2296 | 47 µF | 16 V | check your board |
Philips 1084S-P1 and P2 CRT panel
Two capacitors.
| Part | Value | Volts | Type |
|---|---|---|---|
| 2136 | 4.7 µF | 200 V | check your board |
| 2141 | 22 µF | 50 V | check your board |
1084S-D2 analog board, oldcrap.org's list (50 parts)
From oldcrap.org's list for a Commodore 1084S-D2, noted from the original parts. It is one long table under the heading Analog Board, so the C-number ranges (C1xx to C8xx) cover the board's several sections. Compare it with the Daewoo and Philips lists above and match your own board before you order.
| Part | Value | Volts | Type |
|---|---|---|---|
| C109 | 150 µF | 400 V | check your board |
| C110 | 22 µF | 63 V | check your board |
| C111 | 1 µF | 100 V | check your board |
| C116 | 100 µF | 160 V | check your board |
| C117 | 100 µF | 160 V | check your board |
| C120 | 470 µF | 35 V | check your board |
| C130 | 22 µF | 63 V | check your board |
| C217 | 1 µF | 100 V | check your board |
| C219 | 4.7 µF | 63 V | check your board |
| C220 | 1000 µF | 25 V | check your board |
| C222 | 10 µF | 160 V | check your board |
| C226 | 10 µF | 50 V | check your board |
| C232 | 220 µF | 35 V | check your board |
| C233 | 47 µF | 16 V | check your board |
| C235 | 3.3 µF | 50 V | check your board |
| C236 | 1 µF | 100 V | check your board |
| C237 | 100 µF | 50 V | check your board |
| C239 | 47 µF | 35 V | check your board |
| C241 | 1 µF | 250 V | check your board |
| C306 | 220 µF | 16 V | check your board |
| C307 | 1000 µF | 35 V | check your board |
| C308 | 100 µF | 35 V | check your board |
| C309 | 470 µF | 35 V | check your board |
| C311 | 47 µF | 63 V | check your board |
| C312 | 10 µF | 50 V | check your board |
| C335 | 1 µF | 100 V | check your board |
| C403 | 470 µF | 16 V | check your board |
| C411 | 10 µF | 16 V | check your board |
| C412 | 4.7 µF | 35 V | check your board |
| C413 | 1 µF | 50 V | check your board |
| C414 | 22 µF | 16 V | check your board |
| C415 | 22 µF | 16 V | check your board |
| C417 | 47 µF | 16 V | check your board |
| C421 | 1000 µF | 16 V | check your board |
| C605 | 220 µF | 16 V | check your board |
| C620 | 1 µF | 50 V | check your board |
| C621 | 10 µF | 50 V | check your board |
| C703 | 47 µF | 16 V | check your board |
| C707 | 47 µF | 16 V | check your board |
| C708 | 47 µF | 16 V | check your board |
| C709 | 47 µF | 16 V | check your board |
| C801 | 0.1 µF | 50 V | check your board |
| C8011 | 0.1 µF | 50 V | check your board |
| C802 | 470 µF | 35 V | check your board |
| C8021 | 470 µF | 35 V | check your board |
| C805 | 1 µF | 50 V | check your board |
| C8051 | 1 µF | 50 V | check your board |
| C807 | 100 µF | 16 V | check your board |
| C810 | 100 µF | 35 V | check your board |
| C8101 | 100 µF | 35 V | check your board |
1084S-D2 CRT board, oldcrap.org's list (3 parts)
From oldcrap.org's list for the CRT (neck) board of a Commodore 1084S-D2.
| Part | Value | Volts | Type |
|---|---|---|---|
| C508 | 220 µF | 16 V | check your board |
| C510 | 47 µF | 160 V | check your board |
| C512 | 47 µF | 16 V | check your board |
Shopping list
264 capacitors in all, grouped by value. Buy a few spares.
- 31 x 47 µF, 16 V (check your board): Amazon · eBay
- 25 x 1 µF, 50 V (check your board): Amazon · eBay
- 19 x 100 µF, 16 V (check your board): Amazon · eBay
- 17 x 470 µF, 35 V (check your board): Amazon · eBay
- 12 x 100 µF, 35 V (check your board): Amazon · eBay
- 11 x 22 µF, 16 V (check your board): Amazon · eBay
- 11 x 22 µF, 50 V (check your board): Amazon · eBay
- 9 x 10 µF, 50 V (check your board): Amazon · eBay
- 9 x 10 µF, 16 V (check your board): Amazon · eBay
- 8 x 4.7 µF, 25 V (check your board): Amazon · eBay
- 8 x 220 µF, 16 V (check your board): Amazon · eBay
- 7 x 100 µF, 10 V (check your board): Amazon · eBay
- 6 x 470 µF, 25 V (check your board): Amazon · eBay
- 5 x 2.2 µF, 63 V (check your board): Amazon · eBay
- 5 x 4.7 µF, 50 V (check your board): Amazon · eBay
- 5 x 47 µF, 200 V (check your board): Amazon · eBay
- 5 x 100 µF, 160 V (check your board): Amazon · eBay
- 4 x 0.1 µF, 50 V (check your board): Amazon · eBay
- 4 x 1 µF, 100 V (check your board): Amazon · eBay
- 4 x 22 µF, 35 V (check your board): Amazon · eBay
- 4 x 1000 µF, 25 V (check your board): Amazon · eBay
- 3 x 1 µF, 16 V (check your board): Amazon · eBay
- 3 x 1 µF, 250 V (check your board): Amazon · eBay
- 3 x 4.7 µF, 200 V (check your board): Amazon · eBay
- 3 x 10 µF, 160 V (check your board): Amazon · eBay
- 3 x 10 µF, 25 V (check your board): Amazon · eBay
- 3 x 220 µF, 35 V (check your board): Amazon · eBay
- 3 x 470 µF, 16 V (check your board): Amazon · eBay
- 3 x 680 µF, 35 V (check your board): Amazon · eBay
- 3 x 1000 µF, 16 V (check your board): Amazon · eBay
- 2 x 0.47 µF, 63 V (check your board): Amazon · eBay
- 2 x 3.3 µF, 50 V (check your board): Amazon · eBay
- 2 x 22 µF, 63 V (check your board): Amazon · eBay
- 2 x 47 µF, 160 V (check your board): Amazon · eBay
- 2 x 100 µF, 50 V (check your board): Amazon · eBay
- 2 x 100 µF, 400 V (check your board): Amazon · eBay
- 2 x 1000 µF, 35 V (check your board): Amazon · eBay
- 1 x 1 µF, 63 V (check your board): Amazon · eBay
- 1 x 1.5 µF, 63 V (check your board): Amazon · eBay
- 1 x 2.2 µF, 50 V (check your board): Amazon · eBay
- 1 x 2.2 µF, 16 V (check your board): Amazon · eBay
- 1 x 4.7 µF, 16 V (check your board): Amazon · eBay
- 1 x 4.7 µF, 63 V (check your board): Amazon · eBay
- 1 x 4.7 µF, 35 V (check your board): Amazon · eBay
- 1 x 47 µF, 25 V (check your board): Amazon · eBay
- 1 x 47 µF, 35 V (check your board): Amazon · eBay
- 1 x 47 µF, 63 V (check your board): Amazon · eBay
- 1 x 140 µF, 400 V (check your board): Amazon · eBay
- 1 x 150 µF, 400 V (check your board): Amazon · eBay
- 1 x 220 µF, 200 V (check your board): Amazon · eBay
- 1 x 330 µF, 16 V (check your board): Amazon · eBay
Skip the sourcing
While you are in there
Affiliate links. As an Amazon Associate I earn from qualifying purchases. These links only search by name. Disclosure
Step by step
- Photograph both sides of the board before you touch anything. Zoom in on every capacitor. The photo is your map when you are three hours in.
- Unplug it, take out the batteries and let it sit. Old power supplies and CRT parts can hold a charge. If your machine has a tube, leave the tube and its board to a professional.
- Open it up and keep the screws sorted. A muffin tin or an egg carton works. Different screws go in different holes, and the holes never forgive you.
- Look for leaks. Clean any sticky residue off with isopropyl alcohol and a soft brush. A leaked capacitor leaves brown crust and can eat copper traces. Look at the traces under it, not only the part itself.
- Mark the polarity of every capacitor on the photo before it comes off. On an electrolytic, the stripe marks the negative leg. The board usually shows a half-shaded circle or a bar for the same spot.
- Remove the old capacitors one at a time. Surface mount: add fresh solder to both ends and rock the part off, or use flux and a low-melt alloy. Through-hole: heat one leg at a time and clear the hole with wick or a pump.
- Clean the pads and check for lifted pads or damaged traces. Clean flux off with isopropyl. A bad pad needs a jumper wire, not hope.
- Fit and solder the new capacitor, matching polarity. Same capacity, same or higher voltage, and it has to physically fit. Work from the smallest parts up.
- Clean the flux off and look at every joint. A good joint is shiny and shaped like a tiny volcano. A dull blob or a ball is a cold joint: reflow it.
- With a multimeter, check for shorts across the power rails before you power it on. Use the continuity or resistance setting. A reading near zero means stop and look for a solder bridge.
- Power it up and test everything: video, sound, controls, the lot. If something is wrong, check polarity first. It is the most common mistake and the easiest fix.
Tools
- Temperature-controlled soldering station. Steady heat so you do not cook pads. Most recaps are done between 320 and 350 C. Top: Hakko FX-951 · Mid: Hakko FX-888D · Budget: Pinecil
- Good solder. Rosin-core 63/37 flows and looks right. It is cheap and it matters. Kester 44 63/37
- Flux. Flux is what makes old joints let go and new joints flow. MG Chemicals flux pen · Chip Quik flux syringe
- Low-melt alloy (for surface mount). Melts old solder on both ends of a surface mount part at once, so it lifts off cleanly. Chip Quik SMD1
- Desoldering tool. Clears the old solder out of through-hole pads. Top: Hakko FR-301 · Mid: Engineer SS-02 pump · Budget: Solder wick
- Fine tweezers. For holding small surface mount parts exactly where you want them. ESD-safe tweezers
- Board holder. A third hand for the board, so both of yours are free. PanaVise circuit board holder
- Magnification. You cannot fix what you cannot see. Surface mount parts are tiny. Top: Stereo microscope · Mid: Head visor · Budget: Lighted magnifier
- Multimeter. Continuity, shorts and rail voltages. The one test that saves boards. Top: Fluke 117 · Mid: Fluke 101 · Budget: AstroAI
- ESR and capacitor tester. Checks old capacitors and your new ones before they go in. Top: Peak Atlas ESR70 · Budget: LCR-T7
- Isopropyl alcohol (99%) and a brush. For cleaning leaked goo and flux. Use the high-percentage kind. MG Chemicals 99.9% isopropyl
- Brass tip cleaner. A clean tip transfers heat. A dirty one does not. Hakko 599B
- Fume extractor. Pulls the smoke away from your face. Hakko FA-400 · Budget: Small bench fan
- Precision screwdrivers. Most old gear uses a mix of Phillips, Torx and security bits. iFixit Pro Tech Toolkit
- Kapton tape. Heat-proof tape to protect parts that sit close to the one you are changing. Kapton tape
Safety
- Good airflow, or a fume fan. Solder smoke is not for breathing.
- Safety glasses on. Solder spits and clipped legs fly.
- Iron in its stand when you are not holding it. Know where the cord is.
- Touch bare metal first, or use a wrist strap. Static kills old chips.
- No tube, no mains power supply. Leave those to a professional.
- Wash your hands after, especially if you used leaded solder.
Values are shown as published in the guides above, and boards changed during production. Check the board in front of you. A recap involves hot tools and, on some machines, dangerous voltages. You do it at your own risk.