PONG 4P D&B Manual
11/18/2019
35
7. TROUBLESHOOTING
7.1 Common Problem
Please confirm that all connectors are secured, all connectors are one way and keyed. If
the connectors don’t slip in easily upon mating, please don’t force them.
Symptom
Possible Cause
Recommended action
Game does not start
Frame assembly
connector is loose.
Check connector.
Faulty frame assembly
Contact UNIS Service.
Power off
Circuit protector changes
power SW to “off”.
Turn on power SW again. If appeared
repeatedly, machine has anomaly.
Please contact UNIS Service.
No sound
Low volume
Turn up the volume.
Loose connectors
Check connector.
Faulty speaker
Check speaker.
Loose audio connector or
faulty cable
Reconnect the audio cable or replace it.
Driver problem
Restart the audio driver.
Ball shaking
The bottom of the Ball or
the Playfield has dirt.
Utilize non-woven fabric with Glassy
water to clean the bottom of the Ball.
Paddle or ball offset
Not enough suction of
magnets
Check whether the playfield is fully
positioned.
Clean the playfield, paddle and ball.
Adjust the rail magnet height upward.
Paddle and ball
crash to offset
Over suction of magnets
Adjust the rail magnet height
downward.
Platform obviously
unbalanced during
moving
DC push rod abnormal
Replace DC push rod.
No light of cup
holder LED ring
LED ring board of cup
holder abnormal
Boot to restart.
Check if the wire is loose.
Replace the LED ring board.
Playfield display
abnormal
Digital board abnormal
Boot to restart.
Replace the digital board.
Movement
mechanism has
obvious noise
Belt or belt wheels
abnormal
Check and adjust the belt tension
strength.
Adjust belt wheel position or replace
belt wheel.
Replace the belt.