Question : TSQL CASE and the WHERE CLAUSE

Hi There,

I'm having difficulty trying to get my case statement in the where clause. This is what I am trying to do ..

Select bla bla
FROM bla bla      
WHERE
    case
         when @Letter = 'TEST' then jn.PRINTED = 0 and jn.cust = 'ABC'
         when @Letter = 'TEST1' then jn.PRINTED = 0 and jn.cust = 'XYZ'
     else jn.PRINTED = 0 and jn.cust = 'XXX'
     end

But I am getting a syntax error, can someone help with where I'm going wrong please?

TIA, Roger

Answer : TSQL CASE and the WHERE CLAUSE

Select blabla
FROM bla      
WHERE
 ( @Letter = 'TEST' AND  jn.PRINTED = 0 and jn.cust = 'ABC' )
 OR
 ( @Letter = 'TEST1' AND jn.PRINTED = 0 and jn.cust = 'XYZ' )
 OR (jn.PRINTED = 0 and jn.cust = 'XXX' )