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Leaking capacitors

Electrolyte visible on the PCB; corrosion or fishy smell present.

13 repair logs

PC Engine LT board (component side) on a paper towel with the Ext Bus connector desoldered and resting above it, exposing the electrolyte and grime caked on the board where the connector had sat.
+34 photos✓Successful repair

NEC — PC Engine LT

NEC PC Engine LT Recap + LCD Bias Fix (Necromancy)

An epic of strife, perseverance and adaptation. The NEC PC Engine LT is the 1991 laptop-format PC Engine with a built-in colour LCD. Almost always dead from cap leakage. This one needed a full recap, a new voltage regulator, and an off-the-shelf voltage inverter module to replace the T500 LCD bias transformer, killed by the electrolyte. Without that, the screen stays dark.

No powerNo video outputLeaking capacitors+2
Jan 26, 20261 thread
Sega Wondermega HWM-5010 main board with five removed voltage regulators on cloth, tweezers, and capacitors visible during recapping and regulator cleaning repair.
+15 photos

Sega — Wondermega

Sega Wondermega HWM-5010 Full Restoration (2nd Unit)

A pig to take apart and put back together, but the end result speaks for itself. Both the Mega Drive and Mega-CD sides of this Sega Wondermega HWM-5010 are fully operational.

Disc tray won't openLeaking capacitors
Nov 25, 20251 thread
Game Gear mainboard with ceramic capacitors replaced by electrolytic capacitors during recap repair, showing exposed PCB and component areas.
+4 photos

Sega — Game Gear

Sega Game Gear Recap Redo: Ceramics to Electrolytics

Cautionary tale and full recap redo on a Sega Game Gear: do not recap Game Gears with ceramic capacitors. Replaced ceramics with proper electrolytics throughout.

Leaking capacitors
Oct 28, 20252 threads
Disassembled Game Boy Player units showing back panels and internal components during recapping repair work.
+4 photos

Nintendo — Game Boy Player

Nintendo Game Boy Player (DOL-017) Recap: Leaking Caps

The first time I've actually encountered genuinely leaking capacitors in Nintendo Game Boy Player (DOL-017) units. These were memorable for that alone.

Corrupted graphicsCartridge slot oxidationLeaking capacitors
Sep 5, 20251 thread
Battery leakage corrosion on X68000 motherboard cleaned with vinegar; visible capacitors, ICs, and corroded traces partially restored.
+55 photos✗Could not fix

Sharp — X68000

Sharp X68000: Recap, FDD & Oscillator (No Picture Yet)

A proper exercise in stubbornness on this Sharp X68000. Two rounds of repair, a full recap, FDD surgery (one of the floppy drives had clear signs of a blown capacitor with charring on the PCB), a new oscillator, and still no picture. The X68000 remains on the 'future date' pile.

No powerNo video outputLeaking capacitors+2
Nov 5, 20243 threads
Corroded Wondermega mainboard showing oxidation on capacitors, damaged traces, and component deterioration requiring restoration work.
+135 photos◐Partial fix

Sega — Wondermega

Sega Wondermega HWM-5010 Restoration (1st Unit)

Absolute labour of love on this Sega Wondermega HWM-5010 from Japan: corrosion, missing components, broken traces and a RAM package with broken legs. The Mega Drive side eventually came back to life; the Mega-CD side continues to freeze on the BIOS animation, defying everything thrown at it.

No powerNo audioLeaking capacitors+3
Aug 29, 202416 threads
Disassembled X68000 Pro II motherboard with two PCBs showing solder joints, capacitors, and wiring during restoration diagnostics.
+40 photos◐Partial fix

Sharp — X68000 Pro II

Sharp X68000 Pro II: Magic Smoke, Transistor & R-Type

Proper saga on this Sharp X68000 Pro II. Magic smoke from a reversed capacitor, an accidental probe short, and enough replaced components to fill a parts drawer before a single faulty transistor finally gave the game away. Got it booting and running R-Type, which was a hard-earned win. Video output later stopped working, so the story isn't entirely over.

No powerPSU failureMagic smoke+2
Feb 12, 20248 threads
Panasonic FZ-1 mainboard showing recapped section with fresh solder joints, new capacitors (10I marked L31), and cleaned PCB traces after restoration work.
+21 photos✓Successful repair

3DO Company — Panasonic FZ-1

Panasonic FZ-1 3DO: Recap & ODE (2nd, Laser Donor)

This is the Panasonic FZ-1 3DO whose laser went to save its sibling. With the drive dead anyway, a full recap and an ODE installation was the logical conclusion.

Dead laserLeaking capacitors
Dec 4, 20234 threads
Close-up of Sega Nomad PCB showing removed capacitor and damaged solder joints from poor aftermarket screen installation work.
+32 photos✓Successful repair

Sega — Nomad

Sega Nomad: Screen Fix + CD Audio & Master System Mods

Sega Nomad with a broken aftermarket screen, brought back to life. Plus physical mods to restore CD audio mixing and add Master System game compatibility, both omitted from the original Nomad's design.

Leaking capacitors
Dec 7, 20226 threads
A Game Gear board during cleanup with the capacitors C3 and C1 just removed, their pads heavily contaminated, and the surrounding SMD parts and electrolytic capacitors all showing corroded, contaminated solder joints.
+15 photos◐Partial fix

Sega — Game Gear

Sega Game Gear Heavy Electrolyte Recovery (2 Units)

Two heavily contaminated Sega Game Gears, so badly that components were falling off the boards from the electrolyte. Many hours in, one has a partially defective screen and the other boots and plays audio with no picture. A partial result after a massive effort.

No video outputCorrupted graphicsNo audio+3
Dec 7, 20222 threads
Disassembled Sega Game Gear motherboard showing reflowed solder joints and replaced capacitors during restoration work.
+4 photos✓Successful repair

Sega — Game Gear

Sega Game Gear Full Recap & Reflow Salvage Build

Should have been binned, but wasn't. This Sega Game Gear required replacing every capacitor and reflowing every solder joint before it became reliable, but it got there. Gift for a friend.

Leaking capacitors
Nov 13, 20221 thread
A tighter shot of the same PC Engine GT mainboard area around Q500, the heavy brownish electrolyte residue from the leaked capacitors clearly visible.
+6 photos✓Successful repair

NEC — PC Engine GT

NEC PC Engine GT Recap: All Caps Leaked, All Pads Saved

Every single capacitor on this NEC PC Engine GT handheld had leaked. A careful removal technique preserved all the pads and it came out the other end clean and happy.

Leaking capacitorsCapacitor leakage damage
Nov 4, 20222 threads
Hand holding a new replacement gear (all teeth intact) for the NEC PC Engine Super CD-ROM2 beside the old yellowed gear, which is missing several teeth, during the refurbishment.
+11 photos✓Successful repair

NEC — PC Engine Super CD-ROM2

NEC PC Engine Super CD-ROM² Recap, Broken Gear & RGB Amp

This NEC PC Engine Super CD-ROM² gave me a scare mid-recap when it lost the picture entirely. Turned out to be a resistor knocked off during SMD cap removal; found it on the paper towel and put it back. Also gained a new transport gear and an RGB amp.

Disc read errorBroken drive rail/gearDistorted audio+1
Jul 21, 20222 threads