Konami Twinkle¶
The hardware behind beatmania IIDX (1997-2002). Technically an augmented PlayStation 1 — but the real subject lies elsewhere: a complete machine needs four different media, and one missing item is enough for the game to cease to exist.
Identification¶
| Field | Value |
|---|---|
| Manufacturer | Konami |
| Years | 1997-2002 |
| Base | PlayStation 1 |
| CPU | Sony CXD8530CQ (R3000-based, QFP208) |
| GPU | Sony CXD8561Q (QFP208) |
| SPU | Sony CXD2925Q (QFP100) |
| Second CPU | 68000 — uploads the first 128 KB of RF5C400 bank 0 |
| Sound | RF5C400 |
| Audio storage | IDE hard disk |
| Auxiliary display | 16-segment LED |
| PCB format | Konami proprietary |
⚠️ Four media, and all four are needed¶
This is the subject of the page.
Program CD + video CD/DVD + dongle + hard disk
A complete Twinkle machine means:
- a program CD (GQ863, GQ751… part numbers);
- a video CD or DVD — episodes 6, 7 and 8 use a DVD;
- a security dongle;
- a hard disk carrying the audio, with its own per-game label (“863 HDD A01”…).
All four are paired to the game. A machine that has lost any one of them does not run, and none of the other three makes up for it.
The video player is wired separately
DVD control runs over a serial link: on the early IIDX releases through the 8-pin mini-DIN (CN7) with RTS/CTS flow control; from substream onwards, over a standard serial connection (CN5).
“No video” is therefore diagnosed on the link as much as on the player.
The original cabinet, as the manual describes it ✅¶
beatmania IIDX GQ863 — a 320 kg projector cabinet
The operator's manual (© 1999 Konami, ref. PN. 0000058784 GQ863, 1st edition) describes a cabinet that is nothing like a candy cab.
| Item | What the manual writes |
|---|---|
| Dimensions | 1,650 (W) × 1,600 (D) × 2,350 (H) mm |
| ⚠️ Dimensions, side speakers removed | 1,300 (W) × 1,600 (D) × 2,350 (H) mm |
| Total mass | 320 kg — cabinet 220 kg + top speaker unit 60 kg + stage 40 kg |
| Supply | single-phase AC 100 V (± 10 %), 50/60 Hz |
| Consumption | 1,000 W / 1,350 VA |
| Coin selector | ¥100 coins only |
| Cash box capacity | about 3,000 coins of ¥100 (~¥300,000) |
| Display | ⚠️ a 40-inch wide projector — not a tube, not a panel |
| Operating conditions | 10 to 30 °C, humidity 30 to 70 %, no condensation |
⚠️ The 350 mm between 1,650 and 1,300 is a measurement trap, of the same family as Sega's "installation space": whether you remove the side speakers or not decides whether the cabinet goes through a door. Both triplets are published here because the manual publishes both. → Cabinet types and footprints
⚠️ What the installation demands, and no power strip provides
"必ずAC単相100V（90〜110Vの範囲内）で 30A以上の屋内配線 をご使用ください。延長コードを使用 する場合、定格15A以上 の電源コードをご使用ください。"
⚠️ A wall circuit of at least 30 A, and an extension cord rated at least 15 A if one is used — "規定以外の場合、機械の故障や火災、感電の原因となります". For a declared 1,000 W, that is the margin the maker considers necessary, not an excess of caution.
⚠️ And a switch-on rule nothing would let you guess: "電源のON/OFFをくり返さないでください。 5秒以上電源をOFFにしてからON にしてください" — do not cycle the power repeatedly, and wait at least 5 seconds between off and on, "内部に使用している電気部品の動作に支障をきたす原因と なります".
The projector warns before it fades — and the stage takes two people
✅ As the lamp nears end of life, the projector displays, right at power-on, "ランプの 交換時期が近づいています。" ⚠️ Ignoring it breaks nothing immediately: the manual warns that "画面の輝度が突然落ちることがあります" — the brightness may drop all at once. A picture that suddenly pales is therefore not necessarily a fault.
⚠️ Before touching a spotlight during cleaning: switch off and give the lamp time to cool — "やけどの恐れがあります".
⚠️ The stage weighs 40 kg: the manual forbids moving it alone ("必ず2人以上で") and forbids three or more people standing on it.
The control panel, control by control, as labelled
Effect section — an LED display above; below it, five sliders and two buttons:
| Control | What it sets |
|---|---|
| play volume | the volume of the key sounds |
| track volume | the volume of the backing track |
| hi-EQ · low-EQ | amount of treble · of bass |
| VEFX (Variable EFfect System) | the amount of the selected effect |
✅ The VEFX change button cycles five functions, in a loop: キーコントロール (key control) → エコー (echo) → サラウンド1 → サラウンド2 → サラウンド3, then back to the start. ⓘ "選択されているエフェクト機能は画面に表示されます" — the active function is shown on screen; the panel itself does not tell you.
ⓘ The effect on/off button kills or restores all of these effects at once.
Keyboard section — 1P and 2P keyboards, 1P and 2P turntables, and two 8 W white fluorescent tubes.
✅ And the rear view confirms the four media described higher up this page: DVD player, CD-ROM drive, hard disk drive and control board unit, alongside the mains inlet, the audio amplifier supply, the side-speaker outputs, the line outputs and the link terminals between cabinets.
Notable games¶
Ugoke! Purimucho (1997) · beatmania IIDX (1999) and its successive editions — substream, 2nd through 8th style.
A platform whose preservation depends on the hardware
Unlike a ROM board there is nothing simple to archive here: the content lives on optical and magnetic media that age, and the set only makes sense paired. It is one of the most exposed families in this wiki.
Common faults¶
| Symptom | Probable cause | Next step |
|---|---|---|
| Will not boot | program CD, dongle or hard disk missing or mismatched | Check all four before the electronics |
| No video | DVD player or the serial link (CN7 or CN5) | Two distinct causes depending on the game's generation |
| No sound | RF5C400, or the audio hard disk | The audio does not come from ROM |
| Disk read error | hard disk at end of life | The dominant failure point on a 1999 machine |
| Segment display dead | 16-segment LED or its driver | A separate item, with no effect on the game |
| No picture | CXD8530CQ / CXD8561Q | PS1 failure modes |
Repair (technician)¶
- Take stock before stripping down. On this platform the commonest fault is not electronic: it is a missing item.
- The hard disk is the weak link. It has been spinning since 1999 and carries the audio. Imaging it from your own hardware before it fails is the useful move.
- PS1 base: for the CPU, GPU and SPU, everything that holds for a PlayStation applies.
→ Methods: PCB diagnosis · Recap
Procedure — a dead board, step by step ✅¶
What this adds
The general method lives in PCB diagnosis. This is its application to this platform: the same order, but with the values actually expected here, so you do not have to go back and forth.
Tools: multimeter, oscilloscope (or frequency counter), current-limited bench supply, desoldering braid. → Tooling
If the board is still in a cabinet
A CRT holds its charge with the machine unplugged. → CRT safety
1. Inspection, power off. Corrosion, cut tracks, oxidised EPROM legs, leaking SMD capacitors, dubious earlier repairs.
2. The connector, before anything else. A large share of "dead boards" are a contact problem, not a fault. Clean the contacts with isopropyl alcohol and reseat — not with an abrasive eraser on a gold edge, which takes the plating off and brings the problem back worse. It costs two minutes and settles the question.
3. Power, measured on the board. Aim for +5.0 V measured as close as possible to where power reaches the board — not at the PSU output: the drop is in the loom, and that is exactly what makes a board boot on the bench and not in the cabinet. Where you probe depends on this board's connector — JAMMA edge, JVS loom or a proprietary harness — plenty of makers kept one long after JAMMA arrived — see Identification above. → Wiring Check −5 V and +12 V too if the sound stage uses them. Suspected short: bring it up current-limited and find the hot spot.
4. /RESET. It must release after power-up. Held low = the CPU never starts. A 1–2 Hz loop is not the reset circuit, it is the watchdog: the CPU is crashing at boot, so look at the bus, not at the reset.
5. Clocks. There is no measurement table for this platform — MAME's sources yield nothing usable for it. Any frequency quoted under Architecture on this page serves as a marker; otherwise compare against a working board rather than against a number: an invented value condemns healthy parts. → PCB diagnosis
6. Bus. Activity on the main CPU's address lines tells you whether it is running or frozen. Frozen with good clocks and good reset → work RAM, bus buffers, ROMs.
7. It boots but the picture or the sound is wrong — that is another job: see Common faults on this page, then signal tracing.
Modernisation & mods¶
- ⚠️ Do not host CD, DVD, hard-disk or dongle images — method only.
- Neighbours: the platform shares its Sony base with the Konami GV, the ZN and the G-NET.
Emulation & FPGA¶
MAME covers the platform (konami/twinkle.cpp, driver by smf and R. Belmont), with
declared reservations: the DVD player control and the video mixing are not
emulated, the 16-segment LED font is missing, and one SPU IRQ handler
remains unexplained.
Photos / assets¶
(To take: the board, the dongle, the hard disk label, the 8-pin mini-DIN CN7, and the 16-segment LED panel.)
Archived original documents ✅¶
Manufacturer document archived locally, found on Internet Archive on 13 August 2026. ⚠️ The item declares no licence — kept for preservation, like the rest of the collection, and its provenance is named.
- PDF — konami-beatmania-iidx-gq863-manuel-jp.pdf — beatmania IIDX — 取扱説明書 / OPERATOR'S MANUAL, 91 pp., © 1999 Konami, コナミ株式会社, reference PN. 0000058784 GQ863 (1st ed.). ⚠️ GQ863 is exactly the program-CD reference this page cites above — manual and medium match. The cover subtitle is The next generation beatmania deluxe version. Via Internet Archive
Sources & attribution¶
Text (synthesised here; sources listed for attribution):
- MAME —
src/mame/konami/twinkle.cpp(BSD-3-Clause / GPL, driver by smf and R. Belmont): the PlayStation 1 base with CXD8530CQ (R3000 CPU), CXD8561Q (GPU) and CXD2925Q (SPU); the 68000 uploading the first 128 KB of RF5C400 bank 0; the IDE hard disk for audio; the summary table giving each game's program CD, video CD or DVD (“6/7/8 use DVD”), security dongle and hard-disk label; the two DVD link modes (8-pin mini-DIN CN7 with RTS/CTS on the early titles, serial CN5 from substream onwards); and the declared limits — DVD player and video mixing not emulated, 16-segment font missing, SPU IRQ 2 handler unexplained — https://github.com/mamedev/mame/blob/master/src/mame/konami/twinkle.cpp
Review & corrections
How this space is used
Spotted a wrong value, an outdated procedure, a chip reference that does not match your board? Say so here, with what you observed (model, board revision, serial number, measurement). Every report is cross-checked against a source before anything changes — an unverifiable correction is published as “reported by …, not cross-checked” rather than silently applied.
Reading is open to everyone; posting requires signing in with Discord. Reports from the wiki's declared reviewers are handled first; anyone else's are read too, but go through a human before anything is changed.