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| Galatic war : Error E2 karna ada yg nyangkut di tempat penyimpanan bola |
A frequent technical error code encountered on the Galactic War platform during boot-up or gameplay is Error E2 (E2 / Err 02). This code indicates a Gun/Target Motor Homing Failure or Optical Azimuth Position Sensor Fault.
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| ada material yg nyangkut di tempat penyimpanan bola |
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| Mata monster pada galatic war lepas akibat pukulan bola lalu jatuh ke bawah ke tempat penyimpanan bola |
🔍 Understanding Error E2 Symptoms
When Error E2 is triggered on a Galactic War cabinet:
Error Code Display: The digital LED segment display flashes E2 or Err E2, accompanied by a repeating alarm tone.
Gun Turret Lockup: The motorized gun or target mechanism fails to complete its initial left-to-right homing sweep during power-on self-test (POST).
Game Initialization Halt: The CPU halts the boot process to prevent mechanical binding or gear stripping.
🧠 Root Cause Analysis: Homing Sensor & Motor Drive Interruption
[ Power On Arcade Cabinet ]
│
▼
[ Mainboard Initiates Gun / Turret Self-Test ]
│
▼
[ Stepper / Servo Motor Rotates Gun Mechanism ]
│
┌─────────────────────────┴─────────────────────────┐
▼ ▼
[ Position Sensor Triggers (OK) ] [ Position Sensor FAILS to Trigger ]
│ │
▼ ▼
Game Initializes Normally CPU Timeout -> Triggers "Error E2"
Primary Causes of Error E2:
Dirty / Obscured Home Position Sensor: The U-shaped photo interrupter or optical limit switch that detects the gun's center/home position is coated in dust or grease.
Disconnected Motor / Sensor Harness: Heavy vibration from force-feedback recoil motors causes the 3-pin or 4-pin JST wire socket to back off the sensor PCB.
Mechanical Gear Binding: Dust, worn plastic gear teeth, or loose set screws prevent the motorized turret from reaching its mechanical limit flag.
Blown Motor Driver MOSFET / Fuse: Overcurrent from a jammed gear burns out the drive transistor on the motor control board.
🛠️ Step-by-Step Troubleshooting & Repair Procedure
[ Power Down Machine & Disconnect AC Plug ]
│
▼
[ Open Gun Housing & Turret Base Assembly ]
│
▼
[ Inspect Optical Home Sensor & Wire Socket ]
│
┌─────────────┴─────────────┐
▼ ▼
[ Dust / Grease Buildup ] [ Loose / Unplugged Wiring ]
│ │
▼ ▼
Clean Sensor Gap with IPA Re-seat Connector & Secure
& Cotton Swab with Zip-Ties / Hot Glue
│ │
└─────────────┬─────────────┘
▼
[ Manually Rotate Gun Mechanism & Check Gear Mesh ]
│
▼
[ Power On & Verify Homing Sweep in Test Menu ]
Detailed Repair Steps:
Power Isolation & Cabinet Access:
Shut off main AC power and open the front service door or gun housing enclosure.
Inspect the Optical Home Position Sensor (Cek Sensor):
Locate the U-shaped photo interrupter sensor mounted at the base of the gun turret pivot shaft.
Clean inside the optical slot using a cotton swab lightly dampened with 70%+ Isopropyl Alcohol (IPA) to remove accumulated dust and lubricant.
Verify Wire Harness Connection (Cek Kabel & Soket):
Check the 3-pin sensor wire socket (
VCC,GND,OUT).Clean oxidized connector pins with contact cleaner, re-seat the harness firmly, and secure it using a cable zip-tie or a dab of hot melt glue to resist force-feedback vibration.
Check Mechanical Gear Assembly (Cek Mekanis):
Manually rotate the gun housing left and right by hand. Ensure the metal sensor flag passes cleanly through the middle of the photo interrupter gap without rubbing against the plastic casing.
Inspect drive belts and gear teeth for wear, missing teeth, or debris jamming the mechanism.
Test Sensor Output Voltage:
Set a multimeter to DC Volts ($V_{DC}$) ($+5\text{V}$).
Measure between
GNDandSIGNALwhile manually swinging the gun across the home position: the signal must toggle cleanly between $0\text{V DC}$ and $5\text{V DC}$.
Reboot and Perform Calibration:
Power on the machine, enter the Service / Test Menu, and run the Gun Calibration Test to store the center and extreme limit positions.
📌 Master Arcade Error Code & Troubleshooting Quick Reference Table
| Arcade Machine | Error Code / Fault | Primary Cause | Corrective Repair Action |
| Galactic War | Error E2 (Err E2) | Gun turret homing/position sensor failure or mechanical gear bind | Clean optical home sensor with IPA, re-seat wiring sockets, check gear alignment, and run calibration test |
| Monster Ball Drop | Error 08 (E-08) | Ball trapped / wedged in upper drop chute | Slightly raise/bend the upper metal retainer bar to allow sufficient clearance for smooth ball flow |
| Monster Eye | No Motion | Low compressor pressure or stuck pneumatic solenoid valve | Verify compressor pressure ($80\text{--}100\text{ PSI}$), drain tank moisture, and test solenoid coils |
| Cat & Mice | Error 1-1 | Broken wire inside motor input power cable | Test harness continuity while flexing wires; cut, splice, and resolder damaged wire segment |
| Happy Journey | No Signal / No Display | CPU board short circuit caused by dust buildup | Deep clean mainboard with compressed air & 99% IPA; clean RAM/CF card contacts with eraser |
| Happy Frog | Err 01 – Err 04 | Mechanical jam, dead solenoid coil, or position sensor failure | Clear jam, test solenoid coil resistance ($5\text{--}35\Omega$), and clean position sensors with IPA |
| Happy Frog | ERR 03 / E3 | Empty ticket roll, paper jam, or dirty notch sensor | Reload tickets, clear chute jam, and clean optical sensor with IPA swab |
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