akira CT-14XA9A, Руководство по обслуживанию

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Model No: CT-14XA9A
Version 1.0
4. Focus Adjustment
Caution: Dangerously high voltages are present inside the TV. Extreme caution should be
exercised when working on the TV with the back removed.
4.1 After removing the back cover, look for the FBT on the main PCB. There should be a
FCB on the FBT.
4.2 Power on the TV and preheat it for 15 rain.
4.3 Receive a normal TV signal. Rotate knob of the FCB until you get a sharp picture.
5. Safety Inspection
5.1 Inspection for insulation and voltage-resistant
Perform safety test for all naked metal of the TV. Supply high voltage of 3000V AC,
50Hz (limit current of 10mA) between all naked metal and cold ground. Test every
point for 3 sec and ensure no arcing and sparking.
5.2 Requirements for insulation resistance
Measure resistance between naked metal of the TV and feed end of the power cord to
be infinity with a DC-500 high resistance meter and insulation resistance between the
naked metal and degaussing coil to be over 20M12.
6.
DESIGN/SERVICE mode
6.1 To enter the USER SERVICE mode
Caution: The user service mode adjustment can be changed only when service
personnel adjust the whole set data during servicing. As the control data have dramatic
effects on functions and performance of the TV, service personnel should not tell user
how to enter the SERVICE mode to avoid improper data settings.
6.1.1 Set the volume to 0. Then press and hold the MUTE button on the remote
control, and press the
MENU button on the TV to enter the SERVICE mode. (In this case, the S
mode cannot be stored in the EEPROM. To exit from the S mode, turn ~off
the TV set).
6.1.2 After entering the S mode, Red "S" is displayed on the upper center of the
screen and MENU1 is default. Use the POS+/- buttons to highlight an
adjustment and the VOL+/- buttons to adjust it. The adjusted data are
immediately output and stored in the EEPROM
S
VS 0-3F 25
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