Replacement of Fuse

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15. TROUBLE SHOOTING

Should trouble occur, first check connector connections.

PROBLEMS

CAUSE

COUNTERMEASURES

With Main SW ON, no activation
Power is not supplied.

Power Supply/Voltage is not correct.

AC Main fuse causes the power to be cut off due to momentary overload.

Plug in correctly.

Make sure that power supply/voltage is correct.

Check fuse. Remove the cause of overload and replace fuse.

PTV screen is blackened and no sound is emitted.
POWER SW is OFF.

Connections within the base are defective.

1.> Check to see if the POWER SW is ON.

2.> Check the BNC connector connections of the PTV TERMINAL BD and VPM BUFFER BD in CONTROL CABI.

3.> Check the Main Fuse.

PTV screen is all blue. Irregular communications between each board.
1.> Check the communication cable connection between the Game BD and I/O BD.

2.> Turn the POWER SW back on again.

The color of the image on PTV screen is incorrect. Connector connections are defective. Check the connection for the RGB and SYNC connectors of the PTV TERMINAL BD and VPM BUFFER BD.

The image on PTV screen has color deviation. Affected by magnetic field of installation location. Make CONVERGENCE adjustment. (see section 9)

No sound is emitted.
Sound volume adjustment is not appropriate.

Sound BD and speaker are malfunctioning.

Adjust sound volume. (see section 6)

Perform sound test to find and replace defective parts. (see section 6)

Controller operation is not satisfactory.
Due to environmental changes, etc., sighting became inappropriate.

Micro switch malfunctioning.

Sensor BD malfunctioning

Perform sighting adjustment in the TEST MODE. (see section 6)

Replace the micro switch. (see section 7)

Replace the Sensor BD. (see section 7)

The Fluorescent lamp does not light up. The Fluorescent tube is burnt out. Replace the Fluorescent tube. (see section 10)

15 - 1 REPLACEMENT OF FUSE

In order to prevent an electric shock, be sure to turn power off before performing work by touching the interior parts of the product.Be careful so as not to damage wirings. Damaged wiring can cause an electric shock or short circuit accident.

After eliminating the cause of the blowing of fuse, replace the fuse.

Depending on the cause of the fuse blowing, using the fuse as is blown can cause generation of heat resulting in fire.

(1.) Turn off the AC Unit's Main SW.

(2.) Unplug from the Plug Socket.

(3.) Remove the 2 truss screws, unlock with the Master Key, and remove the Back Door from the rear part of the Front Cabi.

(4.) Two types of fuse are on the Power Supply Unit.

PROBLEMS	CAUSE	COUNTERMEASURES
With Main SW ON, no activation	Power is not supplied. Power Supply/Voltage is not correct. AC Main fuse causes the power to be cut off due to momentary overload.	Plug in correctly. Make sure that power supply/voltage is correct. Check fuse. Remove the cause of overload and replace fuse.
PTV screen is blackened and no sound is emitted.	POWER SW is OFF. Connections within the base are defective.	1.> Check to see if the POWER SW is ON. 2.> Check the BNC connector connections of the PTV TERMINAL BD and VPM BUFFER BD in CONTROL CABI. 3.> Check the Main Fuse.
PTV screen is all blue.	Irregular communications between each board.	1.> Check the communication cable connection between the Game BD and I/O BD. 2.> Turn the POWER SW back on again.
The color of the image on PTV screen is incorrect.	Connector connections are defective.	Check the connection for the RGB and SYNC connectors of the PTV TERMINAL BD and VPM BUFFER BD.
The image on PTV screen has color deviation.	Affected by magnetic field of installation location.	Make CONVERGENCE adjustment. (see section 9)
No sound is emitted.	Sound volume adjustment is not appropriate. Sound BD and speaker are malfunctioning.	Adjust sound volume. (see section 6) Perform sound test to find and replace defective parts. (see section 6)
Controller operation is not satisfactory.	Due to environmental changes, etc., sighting became inappropriate. Micro switch malfunctioning. Sensor BD malfunctioning	Perform sighting adjustment in the TEST MODE. (see section 6) Replace the micro switch. (see section 7) Replace the Sensor BD. (see section 7)
The Fluorescent lamp does not light up.	The Fluorescent tube is burnt out.	Replace the Fluorescent tube. (see section 10)