The Workbench

Projects

Everything here gets worked on, not just displayed. The current bench queue, planned builds, and a trail of completed restorations.

On the bench now

In progress

Williams Indiana Jones — cold-boot chase

An intermittent failure on cold boot. The interlock switch has been replaced and ruled out; a memory-protect switch is on order and next in line. Classic 90s Williams diagnosis: one suspect at a time.

Ongoing

BKM card hunt for the BVM-20E1U

The primary E/F-series broadcast monitor has two open card slots waiting for the right input cards. See the wanted list.

Published

Sony AMS-100 monograph

The deep technical write-up is finished — history, internals, the module system, a registry of documented frames and the market record. Read the monograph →

Out for service

JVC X'Eye — full servicing

The Genesis/Sega CD combo unit is off at iFixRetro (@ifixretro) for a complete going-over. It'll come home better than new.

Seven Sony AMS-100 audio monitor speakers stacked on a workbench, front panels facing out
The AMS-100 stack — Sony's rack-width audio monitors, mustered on the bench for inspection
Sony BVM-20E1U broadcast monitor displaying a crosshatch calibration pattern with an AMS-100 speaker on top
Calibration hours — crosshatch up on the BVM-20E1U
The garage arcade mid-project: cabinets, pro monitors on the floor, decks overhead, and work in progress everywhere
Project mode — BVMs on the floor and parts everywhere, a rare sight: the arcade is always tidy, except for the glorious few days a big project takes over

Planned builds

Planned

WLED garage lighting

Addressable RGB throughout the arcade bay: WS2815 strip, ESP32 running WLED, a proper Mean Well supply, and aluminum channel so it looks built-in, not taped-on.

Planned

Arcade bay airflow

A room full of running CRTs makes real heat. A thermostat-controlled exhaust fan is the plan for keeping the tandem bay happy in summer.

Completed

Fixed

Sony AMS-3 — volume pots cleaned

Two AMS-3s arrived untested, and they are monsters: 35 lbs apiece — a 14-inch PVM's worth of steel and heatsink for a speaker — and loud enough to hold their own in a room full of running CRTs. One has since moved on to another collector. The keeper had exactly one thing wrong with it, a scratchy volume pot, and a can of fader cleaner sorted it. See it next to an AMS-100 →

Completed

Big Blue PSU rebuild

Full rebuild of the cabinet's switching supply, with voltages trimmed to spec. The foundation everything else in the cab depends on. Before and after →

Completed

Indiana Jones board replacement

Rottendog main driver board and Fliptronics board fitted to the Williams widebody, alongside a full shop-out. The full work log →

Completed

Big Blue side art installed

The decal hunt paid off — Capcom-logo side art is on the cabinet, finishing the look the PSU rebuild started. The full work log →

Completed

Capcom Q-Sound amp repair

RCA jack reflow on a CPB-001A Q-Sound amplifier — small fix, big soundstage. The full work log →

Completed

LMD fleet scan-mode setup

The LMD squadron configured for zero scan (with the 940W on Normal), trading a little edge clipping for the full-frame look.

Completed

BVM-20E1U calibration

Chased down a gain calibration quirk on the primary BVM — the kind of menu-diving only broadcast monitors ask of you.

Completed

PS2 MemCard Pro 2 setup

A PS2 slim running its library through FMCB/OPL from a MemCard Pro 2 — modern convenience, original hardware.

Clean again — both needles moving and the pots quiet, with the can of DeoxIT still on the shelf behind it. Sound on: that is the AMS-3 doing the work
Rear view of a Sony AMS-3 showing full-width heatsink fins running down both sides of the chassis
All heatsink — the back half of an AMS-3, which explains most of the 35 lbs
The Big Blue switching power supply as removed, buried under years of dust
Where the PSU rebuild started — dust packed solid before a single component came off. The full Big Blue story →