Quasar SP Series

Service Menu Quasar SP Series
With the TV turned on, momentarily short-circuit test points FA1 and FA2.
Simultaneously press the keys + and VOL ACTION (or MENU). With POWER
select the 4 different sub-modes. CANAL + / - select the item to adjust,
with VOL + / - adjusts the value. To exit and save changes, press
ACTION and POWER simultaneously by 2 or 3 seconds.