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Newbie TV walkthrough, please!

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rCadeGaming:

Well s**t!  Sounds like a good story.

Find the service manual which covers that model, and it will list the chassis type.  Thanks for the help.

nadcraker:

According to the service manual, it says BA-5D, but then has the following table:

MODEL         DESTINATION            CHASSIS NO.

KV-27FS100      US                       SCC-S65D-A
KV-27FS100      CND                    SCC-S64D-A
KV-27FS200      US                      SCC-S65E-A
KV-29FS100      LATIN NORTH      SCC-S62H-A
KV-29FS100      LATIN SOUTH      SCC-S62J-A
KV-32FS100      US                      SCC-S65F-A
KV-32FS100      CND                   SCC-S64E-A
KV-32FS200      US                      SCC-S65G-A
KV-34FS100      LATIN NORTH      SCC-S62K-A
KV-34FS100      LATIN SOUTH      SCC-S62L-A

rCadeGaming:

Cool.  It looks like a great candidate for old school consoles and 15kHz native res from MAME.  Only testing will tell us about the 288 line boundary behavior, which I would be grateful to hear about.

If you go for it, let us know your results.  Hold onto that service manual, it will be very handy when you're setting up the geometry and such in the service menu.

Tzakiel:

Really appreciate this thread... thanks rCadeGaming for all the info here.  I am building a UAII cabinet from north coast, I think the interior width is 27" wide.  I believe some 27" televisions fit inside, such as the "old" trinitron I have now which has only S-video, and speakers on bottom rather than sides.

Any other TVs with component that are 27" and might fit?  Like others, I am really scared I will kill myself with voltage if I take the casing off the 27" WEGA trinitron you recommend.

rCadeGaming:

No problem Tzakiel, just trying to keep the authentic video aspect of this hobby alive.   :cheers:

Discharging a CRT is something you need to learn if you want to use them properly in arcade cabs.  Just be careful and read the sticky for instructions.  It's very easy and once you've done it once or twice it won't be a big deal anymore.

As for recommendations I'd go for something in the KV-27FS range.  The one I can best vouch for is the KV-27FS120.

Don't bother with the KD-27FS170 I mentioned above.  The size switching at 288 total lines is nice, but the picture quality is very poor.  Geometry is unstable across different modelines, and focus is awful anywhere except the center of the screen.  I had planned on trying to connect its chassis to a KV27FS-120 tube to get the best of both worlds (KD model has size switching, KV has excellent picture quality).  Upon taking it apart, I found that they actually use the same model of tube, so switching the chassis between them is no help.  The poor picture quality seem to come from the design of the chassis itself.  The two models do also have slightly different driver boards, deflection yokes, and flybacks, so I also tried switching these around in various combinations (using the KV driver board and flyback with the KD chassis took a good deal of hacking things up), but couldn't get satisfactory results.

Eventually, I spent some time looking over all the games I consider worth playing in MAME to get some perspective.  A few hundred if you really stretch the definition of "worth playing."  What I found is that among the 15kHz games (which are the great majority), anything over 240p is actually pretty rare.  224p is by far the most common, with 240p in a distant second, and a few odd resolutions in between 224-240 lines being third.  There's not a lot that's notable over 240 lines, except the Irem m72.c games (R-Type I and II, Ninja Spirit, Image Fight, X-Multiply, all 256p), and various Midway hardware games (NBA Jam/TE/Hangtime, MK I-III if you're into that, all 253p).  There are in fact only a handful of games over 240 lines per field that I'd consider worth playing, maybe a dozen, which is not significant among hundreds of others.  So, the size switching isn't that important, as it's rarely needed, and I can make some compromises with that small handful of games.

In my case I'm also using consoles, which are never more than 240 lines per field (480i is still 240 lines per field, so it's the same vertical size as 240p).  I'm also building a separate cab with a vertical screen for vertical games.  So I'll never have to deal with running vertical games on a horizontal monitor (yoko), like Jadder and some other people here are trying to pull off.

Another consideration is that KD27-FS170's are pretty rare, whereas KV-27FS120's are very common.

Long story short, I decided to stick with the KV27FS-120.

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