To access service mode:
Press 'DISPLAY' (WITH NO DISK IN), then, 1, 3, 5, 7
Change REGION CODE to '0' for no region (from 2).
If you have patterning after changing the DVD assembly,
in 'VIDEO', change CVBS TO YC
(can sometimes give a monochrome picture if set incorrectly)
If the above, access code doesn't work, the only way to remedy this patterning
is to swap IC U7, from the old board to the new (different software
versions).
On some models the 'Navigate' button (the button with 'OK' at the centre)
just moves the selection up/down, but on others, they have this effect:
UP - REGION ADJUST <---- if this doesn't work, just press '0' on handset (region free)
LEFT - SPDIF
RIGHT - DVD GROUPF/DIVX
DOWN - VIDEO YC/CVBS
When finished, goto STANDBY, then switch on again to STORE.
Regards,
John