All Sony 125x/127x projectors have digital convergence, on screen menus, come
with a wireless remote. The performance of the series of sets is quite similar
in both setup and operation.
The Sony 1270 came out first in 1990, and was Sony’s answer to the
Barco 800. The Sony 1270 scanned to 75 Khz, and used the Sony 07MP electrostatic
focusing tubes. Depending on whose literature you read, the 07MP tubes either
were 7” or 8” tubes (we tend to call them 8"). The lumen rating also varied from 650 to 825 lumens
depending on who you believed.
The Sony 1252 and 1272 models are the newest in the series. The 1270 has 9 points of zone convergence as does the 1251 and 1252. The 1271
and 1272 have 21 point of convergence, which make the later models a bit more
desirable. HOWEVER… if you do a careful convergence job, the sets with the
earlier 9 point convergence can look just as good as the later sets. 21 points
of convergence is handy if you're too lazy to do a careful set up… :)
The Sony 125x/127x series are complete workhorses, failures on these are
relatively rare. The internal layout are all very similar.
How to enable progressive scan component on an IFB12 optional input card:
On the dip switches located on the input plate turn on switch 2 and 3 and leave
all others off. Jumpers 3 and 4 are labelled Sync on one side and Video on the
other. The default is Sync but you want to move these to Video. Jumper 5 is
labelled HD on one side and GS on the other. HD is the default and you want to
move this to GS. Then just install the board and hook up the cables according to
the labels on the rear of the IFB12 (Y, Pr, Pb). You don't need to adjust
anything in the on screen menus. This will allow your older Sony 125x/127x set
to accept 1080i and 720p over component.
To see how these projectors rank in relation to other projectors for use in a
home theater environment see the Projector Rankings
For full specifications on this and other projectors, see the
For an overview and history of Sony see the CRT
See the Advanced Procedures
page for various DIY instructions on maintaining and improving CRT projectors.
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