Aiwa VX-F20DV1 U Service Manual page 83

Aging Mode
How to enter the aging mode and the contents that are displayed in the aging mode
To enter the aging mode, press the TEST key.
When this set enters the aging mode, the Auto Power Off function that turns off the main power when the input signal is
disconnected, is disabled.
The aging mode is used for aging (such as warming up) of this set before starting the CRT adjustment.
When this set enters the aging mode, the following display appears on CRT screen.
Contents that are displayed on screen in the aging mode
AFT S-curve display (AFT UP, AFT OK, AFT DN)
The message of either UP or OK or DN (DOWN) is displayed in accordance with the status that the AFT S-curve is high
or optimum or low.
Accumulative operating hours of CRT ON, are displayed
The operating hours of CRT ON are accumulated in units of hour and are displayed in hexadecimal notation.
Example: 1234H=(1 16 16 16)+(2 16 16)+(3 16)+4= 4660 hours
When the accumulative operating hours exceed 7FFFH (32768 hours), the display returns to 0000H.
Distinction switch destination setting
The destination and picture size setups that are set in this set are displayed.
The method of how to set the distinction switch is described in the next section.
AGING : AFT OK : 0000H : US21
AFT S-curve status
CRT operating
hours
– 83 –
Destination of the
distinction switch