Lesson 1Electronic control an' payout logic: hopper drivers, fuses, coin counters an' PCB rolesDetails how di slot’s electronics command an' monitor hopper payouts. Explains driver circuits, fuses, relays, coin counters, an' PCB logic, including enable lines, payout pulses, fault detection, an' interface to di main game CPU.
Hopper driver outputs an' enable signalsFuse protection an' overcurrent behaviorCoin counter inputs an' pulse shapingMain logic PCB payout control flowTimeouts, error flags, an' lockup statesLesson 2Post-repair verification: payout simulation tests, multi-denomination payout runs, audit of meter an' event logsDescribes how fi verify hopper repairs before returning a machine to service. Includes payout simulations, multi-denomination test runs, timing checks, an' review of meters an' event logs fi confirm correct accounting an' alarms.
Single-denomination payout simulationsMulti-denomination mixed payout runsVerifying coin count versus pulses loggedChecking meters, audits, an' event logsDocumenting test results an' sign-offLesson 3Inspection an' mechanical test plan: clearing jams, checking coin path alignment, wear inspection, bearing an' motor checksDefines a structured mechanical test plan fi hoppers. Covers safe disassembly, jam clearing, coin path alignment checks, wear inspection, an' evaluation of bearings, shafts, an' motors under load fi prevent repeat field failures.
Safe removal an' bench setup of hopperProcedures fi clearing coin jamsChecking coin path an' chute alignmentInspecting gates, discs, an' agitators fi wearBearing, shaft, an' motor free-spin testsLesson 4Causes of false "Hopper Empty/Jam" indications: wiring, sensor occlusion, stuck actuators, insufficient hopper voltageExamines reasons fi false hopper empty or jam alarms. Covers wiring faults, sensor occlusion, stuck actuators, low hopper voltage, an' intermittent connectors, plus targeted tests fi confirm an' correct each failure mode.
Recognizing false empty an' jam symptomsFinding broken or shorted sensor wiringDetecting dirty or occluded sensor opticsIdentifying stuck levers an' actuatorsLow-voltage an' brownout related alarmsLesson 5Sensor types fi coin detection an' hopper level: optical interrupters, IR, micro-switches, weight/floor sensorsCovers sensors weh detect coins an' hopper level. Explains optical interrupters, IR reflective sensors, microswitch actuators, an' weight or floor sensors, including mounting, alignment, failure modes, an' cleaning requirements.
Optical interrupter theory an' alignmentIR reflective coin detection techniquesMicroswitch actuators an' lever adjustmentsWeight an' floor sensor level detectionCleaning an' protecting sensor windowsLesson 6Calibration an' configuration: hopper pulse counts, coin denomination mapping, coin size adjustments an' software parameter updatesExplains how fi calibrate an' configure hopper operation. Includes setting pulse counts per coin, mapping denominations, adjusting fi coin size, an' updating software parameters while maintaining compliance wid regulations.
Setting hopper pulses per paid coinMapping denominations to hopper outputsAdjusting fi coin diameter an' thicknessUpdating game software payout parametersRecording calibration data fi auditsLesson 7Electrical diagnostic step dem: voltage an' current measurements, driver board tests, connector an' harness checksProvides a stepwise approach to electrical diagnostics on hopper circuits. Covers voltage an' current checks, driver board testing, connector inspection, harness continuity, an' using schematics fi trace payout control signals.
Safety an' isolation before measurementsMeasuring hopper supply voltage an' rippleChecking motor current an' stall conditionsDriver board output an' component testsConnector, harness, an' continuity checksLesson 8Coin hopper types an' internal mechanisms: motor-driven, stepper, disc, star wheel designsExplores major hopper designs an' how dem move, separate, an' count coins. Covers motor types, drive trains, discs an' star wheels, coin path geometry, an' how mechanical choices affect speed, accuracy, an' long-term reliability.
Motor-driven hopper architecture overviewStepper motor control an' indexing behaviorDisc an' star wheel coin transport designsCoin path geometry an' singulation featuresWear points in gates, discs, an' agitatorsLesson 9Causes of wrong payouts: sensor misreads, mechanical wear, coin jams, counterfeit/size variance, software countersAnalyzes common causes of incorrect payouts. Discusses sensor misreads, mechanical wear, jams, counterfeit or off-size coins, an' software counter issues, plus methods fi isolate whether faults are mechanical, electrical, or logical.
Symptoms of overpay an' underpay eventsSensor misreads an' missed coin pulsesMechanical wear, drag, an' partial jamsEffects of off-size or counterfeit coinsSoftware counter an' configuration errors
