Be aware also that there is another manifestation of the tunnel-vision defect/degeneration (or so I gather, since it followed the t-v on my PB 180). That is a bright screen at startup that never gets around to any display at all, although the screen illumination is still responsive to the brightness slider. I know that there is good video signal being generated, by mirroring the display externally on an Apple Color Plus 14".
I was peeved enough to get the t-v after rescuing and upgrading my 180 to the max. with OS 7.6.1, and it is not much comfort to know that the backlight/inverter combination is still functional after a few months of rest on a shelf, attached the while to its AC adapter. A pity, because spare displays are seldom available. But all is not lost while mirroring is possible, even though the 'portability' of the Mac is thereby defeated.
de
I was peeved enough to get the t-v after rescuing and upgrading my 180 to the max. with OS 7.6.1, and it is not much comfort to know that the backlight/inverter combination is still functional after a few months of rest on a shelf, attached the while to its AC adapter. A pity, because spare displays are seldom available. But all is not lost while mirroring is possible, even though the 'portability' of the Mac is thereby defeated.
de