Metallica Pro

Identity and evidence precedence

This definition covers all 20 non-h Metallica drivers from mtl_052 through mtl_180c. The h/hc family is the physically different Premium/LE playfield and has its own definition. JP's Metallica Pro 6.0.0 VPX script is the controller-semantics ground truth because it is a current, proven recreation bound to mtl_180; the official Stern manual governs physical inventory, wiring, assemblies, and service numbering; pinned PinMAME governs public API address groups, the SAM platform, DMD transport, and driver identity. The table author explicitly states that the Pro layout matches the original; its two added ramp spinners are ornamental, do not score, and must not be recreated as physical Pro switches.

Edition differences that must be preserved

The Pro has ordinary matrix lamps and aggregate GI only. It has no Premium RGB/GI node board, no three-ball under-playfield coffin lock, no lowering coffin magnet or two-bit coffin processor, no captive-ball hammer, no motorized grave marker, and no motorized snake jaw/latch. Consequently public solenoids 51-58 and public lamp channels 81-136 are not part of this physical edition. The Pro retains four balls, a static grave-marker magnet behind three inline drop targets, an Electric Chair magnet and Sparky step-up driver, a passive captive ball, a static snake-head eject, and an electronically controlled loop up-post.

Switches and initial state

All 64 matrix addresses, 24 dedicated addresses, and eight CPU-board DIP inputs are explicit, including unused locations. Four balls initially occupy trough switches 18-21. Output 1 ejects the rightmost ball and the proven script pulses shooter-path jam opto 22; switch 23 is the shooter lane. Switch 52 is the grave-marker ball opto, 53 is the Electric Chair opto, 51 is the right eject, and 54 is the snake eject. The inline drop targets use switches 60 bottom, 61 middle, and 62 top; they are active while raised and open when hit. Switches 33/34, 38/39, 55-59, and 63/64 are explicitly unused because their Premium-only moving marker, physical spinners, motorized jaw, and coffin hardware are absent.

Coils, flashers, lamps, and GI

The Pro I/O Power Driver board exposes physical outputs 1-32. Outputs 1-18 cover trough, auto launch, both magnets, both ejects, loop post, optional shaker, pops, drop-bank reset, slings, flippers, one unused address, and the Sparky step-up driver. Outputs 19-32 are the service-manual flashers and 24 is the optional coin meter. PinMAME public solenoid 33 is the synthetic SAM game-on state, not ticket hardware. Optional ticket-dispenser advance, meter, and switched-ground service identities 33-35 are preserved separately under physical.output.ticket, because the stable LibPinMAME API does not transport them. There is no auxiliary-board public range 51-58. Standard lamps 1-80 exactly follow the Pro matrix on manual PDF page 122, with every blank address marked unused. The only PinMAME GI binding is aggregate pinmame.output.gi/0; the working script switches the whole ordinary-GI collection together and has no colored GI.

Grave marker, chair, captive ball, and drop bank

The grave marker is static on Pro. Output 3 drives its centered magnet at working-table strength 70, switch 52 detects the ball, and switches 60-62 sit on the three inline drop targets leading into the capture area. Output 12 resets the bank. The Electric Chair uses magnet output 4 at working-table strength 45, opto 53, standup 35, and output 18 to shake/step up Sparky. The captive ball is passive: its impacts pulse switch 42 and there is no hammer output.

Ejects, post, and standard devices

The right scoop holds a ball at switch 51 and output 6 ejects at VPX angle 220, strength 25, and force variation 2. The static snake mouth holds a ball at switch 54 and output 5 ejects at angle 195, strength 26, and angle/force variation 2; it deliberately has no jaw-open or latch sensor. Output 7 raises the loop post while energized and drops it when disabled, with no position sensor. Output 2 drives the auto launcher at VPX power 62 with 0.6 second full-plunge time and 0.3 random variation. The remaining playfield includes two lower flippers, three pop bumpers, two slingshots, two ramps, fuel standups, guitar-pick standups, and ordinary rollover/target switches. Do not add scoring loop spinners merely because JP's VPX includes two decorative non-scoring spinner objects.

Optional cabinet hardware

Output 8 is the optional shaker and output 24 is the optional coin meter. The optional ticket dispenser uses physical service identities 33 for advance, 34 for its meter, and 35 for switched ground, plus dedicated switch D19 (public switch -5) for ticket-notch feedback. Retain those physical.output.ticket bindings even when a specific recreation omits the option; do not bind its advance line to PinMAME solenoid 33, which is game-on.

Recreation checklist

• Create four trough balls on switches 18-21, keep switch 22 clear downstream, and bind shooter lane 23.
• Build the static grave-marker magnet and three normally-closed inline drop targets, the Electric Chair magnet/Sparky toy, passive captive ball, static snake eject, right scoop, auto launcher, and unsensed loop up-post with the documented causality.
• Implement public physical outputs 1-32, virtual game-on 33, matrix lamps 1-80, aggregate GI 0, the 128x32 DMD, all dedicated cabinet inputs, and optional shaker/coin/ticket hardware; the ticket service functions are physical identities without a stable LibPinMAME transport.
• Do not copy Premium-only outputs 51-58, RGB/GI lamp channels, coffin mechanisms, hammer, moving grave marker, motorized snake jaw, or loop-spinner scoring switches.
• Use the working VPX strengths, angles, timing, and state transitions as initial authoring values and the manual's service drawings for physical placement and wiring.

Spatial coordinate model

Every physical playfield sensor, actuator, controlled lamp, flasher, and ordinary-GI anchor uses one normalized player-view frame from the exact 952 by 2162 JP table: x=0 left, x=1 right, y=0 rear/backglass end, and y=1 apron. The working script establishes controller causality and the official manual confirms physical inventory and multiplicity. Cabinet, service, rear-panel, virtual, DIP, and unused records never receive fake playfield points. Trough contacts, the shooter-path jam opto, slingshot contacts/coils, EOS contacts, and drop-bank reset are explicitly disclosed as assembly or regional projections.

Physical lighting multiplicity follows the Pro service maps rather than the count of VPX glow helpers. Only matrix outputs 4 and 27 drive two physical lamps. For outputs 9-12, 31, 32, 41, 48, 53, 60-62, 70, and 71, one of two VPX render objects is retained as the approximate physical socket anchor; every affected record discloses the discarded helper and residual uncertainty. Flashers 26, 27, 28, and 31 are pairs; every other playfield flasher is one bulb. The two VPX glow objects driven by snake flasher 20 occupy the slings and conflict with the official physical map, so the definition uses a disclosed snake-assembly projection. Captive-ball flasher 30 is one physical bulb represented by three overlapping/spread glow helpers, so only its central composite anchor is retained. Rear-panel outputs 21/22 each drive one off-playfield bulb. Ordinary GI has 33 deduplicated exact playfield anchors plus six manual-proven rear-panel sockets; all 39 are retained in physical quantity without invented rear-panel coordinates.

Output 24 is physically the optional coin meter on the Pro wiring chart. JP's callback plays a knocker sound as cabinet feedback, but that render/audio choice is not evidence for a physical knocker. The Pro mechanism topology otherwise stays intentionally simpler than Premium/LE: the grave marker and snake are static, the captive ball is passive, there is no coffin lock/magnet processor, and decorative VPX spinners remain non-scoring.

Sources

• manual.metallica-pro-premium: official Stern MTLAB1-compressed.pdf, SHA-256 f82ecc04bded7117d4c5e3b724dc85e60b5057768bbf7bf5e46c0d1e71a91090; ordinary-GI physical map on PDF page 114 and Pro coil/flasher chart, coil location, lamp matrix, and lamp location on pages 119, 120, 122, and 123.
• vpx.metallica-pro-jps-6.0.0: extracted known-working mtl_180 script, SHA-256 d5ea2810308e05daee22c2a75b3d80a4b19fbd3f89e67144a38f9c20bdb33307; callbacks and mechanisms on lines 35, 81-165, and 200-453.
• vpx-table.metallica-pro-jps-6.0.0: exact known-working JP's Metallica Pro (Stern 2013) v600.vpx, SHA-256 837ee8d05e0f61e51136d397737d85e4ec14d41859abfb6e789785b82a60a118; downloaded archive SHA-256 5fafb136ed9f76ad32dcc035bd72c4dadd856562778f9fae53d7e1bcc9396ff0, retained externally under pinmame-vpx-sources/stern/metallica-pro-2013/source, and extracted read-only with vpxtool git:v0.33.3 for the sole normalized geometry frame.
• runtime.metallica-pro.boot-start: family-compatible mtl_170 ROM run, raw SHA-256 65fa45916ba42165b334bdcee7dea1bae25d0e0feee44cc887102b167c70d49e, ROM archive SHA-256 2f11830ffb35f2a80258e47a5ea0abd17fc2350995bb1d1d1a165480be61f654.
• pinmame.core.4ec52ff0ac13: pinned SAM platform, display, and driver configuration.