The following are the Dip Switch settings based off of MAME 0.180 source code.
 
Use this information at your own risk!  The information was parsed from the MAME source code and could contain errors as to the state, order or descriptions of what the switches do.  If you find an error, please let me know on the Contact Us form and I will work on correcting the issue. 
 
 
 
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Manufactured by Jaleco, Released in 1990
ROM Version: Mahjong Channel Zoom In (Japan)
Print
Dip Switch:SW1
12345678FunctionOption
        Start Score Type1*
        Number of Chips (Start - Continue)1 - 1*
        1 - 2
        Start Score Type2
        Number of Chips (Start - Continue)2 - 1
        2 - 2
        Start Score Type3
        4
        Item AvailabilityHigh
        Normal*
        UnknownOff*
        On
Dip Switch:SW2
12345678FunctionOption
OffOffOff     Coinage1 Coin/1 Credit*
OnOffOff     1 Coin/2 Credits
OffOnOff     1 Coin/3 Credits
OnOnOff     1 Coin/4 Credits
OffOffOn     2 Coins/1 Credit
OnOffOn     3 Coins/1 Credit
OffOnOn     4 Coins/1 Credit
OnOnOn     Free Play
   OnOff   DifficultyHard
   OffOn   Harder
   OnOn   Hardest
   OffOff   Normal*
   OnOffOn  0 (Easy)
   OffOnOn  1 (Easier)
   OnOnOn  2 (Easiest)
   OffOffOff  3 (Normal)*
   OnOffOff  4 (Little Hard)
   OffOnOff  5 (Hard)
   OnOnOff  6 (Harder)
   OffOffOn  7 (Hardest)
      On Pinfu with TsumoNo
      Off Yes*
       OffFlip ScreenOff*
       OnOn
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