Aiwa TV-SA2055 Service Manual page 12

3. Display of "CRT ON" accumulated hours
The CRT usage time is accumulated on an hourly basis and is displayed in
hexadecimal figures.
Sample calculation of displayed hexadecimal figures : HEX 1 2 3 4
• The display will be reset to 0000H when the accumulated hours
exceed 7FFFH(32768 hours).
Adjustment Mode Operation Method :
1. Return to the aging display by pressing the "TEST" key and press
"CHANNEL" key to display the adjustment menu screen.
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