Samsung photo smart 230 Service Manual page 66

B
"UP" key does not
operate.
"DOWN" key does not
operate..
IF All key do not operate
YES Check the SW3 OR D8,
R92 damage
YES Check the SW9 D8,R95
damage
Replace D/B U8
YES
YES
YES
42
Replace the SW3 OR D8,
R92
Replace the SW9 D8,
R95