SERVICE
MODE - Software Upgrade – SANYO LCD22XR7S – POWER and BACK-LIGHT INVERTER SCHEMATIC.
SERVICE MODE
* Press “INPUT”, “2”, “5”, ”8” and
“0” in turn to enter factory menu.
* Press “CH+” and “CH-” to select
adjustment items and press “VOL+” and “VOL-” to adjust value items.
* Press “MENU” repeatedly to exit.
SOFTWARE UPGRADE
When software upgrading enter factory menu first and select ISP of OPTION, set ISP to 1 and you can begin
to upgrade.
After upgrade finished, it needs to set ISP back to 0.
If the
picture can’t display when upgrading, it needs to solder JB1 on main board.
Unsolder JB1 again after upgrading.
Unsolder JB1 again after upgrading.
SMPS SCHEMATIC
BACK-LIGHT INVERTER SCHEMATIC
CLICK ON THE PICTURES TO ZOOM IN
