8. MAINTENANCE8-2 TroubleshootingQ1 WARNINGl Before carrying out this task, always turn off the power switch to prevent workers and people aroundfrom getting an electric shock, accident. or injury and to protect the electric circuit from damage.. In the case of trouble, first check that all connectors are firmly connected.0 If none of the cases described below applies to the trouble or if any actions do notseem to solve the problem, contact your dealer.. In repairing the game PC board, never conduct a continuity test with a tester or any-thing similar. This might destroy the ICs due to the inner voltage of the tester.0 To send any component for repairs, package it securely. When sending the game PCboard. in particular, wrap it with a sponge, air cap. or something similar and put it into acorrugated carton to avoid external forces.8 - 2 - l G e n e r a l-To be conducted by a technician only -I Symptom I C a u s e Action I ISee pageDisconnect the large-capacity electricequipment on the same line (such as anair-conditioner and large video machines)to secure a specified supply voltage.This machine powers The circuit protector is Turn the power switch back on. If the Page 28off when you do not activated and the power circuit protector gets activated over andexpect it. switch is off. over again. this machine must bedefective. Contact your dealer.The speakers do not The sound volume is too low. Ae-adjust the sound volume. Page 39sound. IThe connector connecting the Connect the connector. Page 14signboard Assy to the cabinetAssy is loose.8-2-2 Cabinet Assy-To be conducted by a technician only -I Symptom C a u s e Action See pageThe monitor does not The connectors connecting Open the rear cover or maintenance Page 50-53display pictures. the monitor to the rack Assy panel, then connect the connectors. Page 60are loose.4 8