Aiwa XP-V311 Service Manual page 11

4. Amount of change of jitter
The amount of change of jitter is displayed in the focus bias check mode. The displayed value has 256 steps from 00 to FF.
Example: focus bias (FB)
Tracking offset
* Adjustment values and jitter values are indicated in hexadecimal.
Adjustment value™00
RNDM
Adjustment value
Jitter value™FD
RESUME
1
DSL
13