The Russians salvaged a 1-1 draw at home to take to the Santiago Bernabeu on Wednesday and Chepchugov believes his side are prepared for the clash in the Spanish capital.
"I am in a good mood, we are working hard," he told Sport-Express.
CSKA will face a star-studded Madrid side but the goalkeeper suggested there is no reason to single out Ronaldo for any special attention.
Asked if the Portuguese will provide a big threat, Chepchugov replied: "I wouldn't say so. After all, it was he who left the pitch [in the first leg] in disappointment, not me."
Ronaldo has scored 40 goals in 38 appearances in all competitions so far this season, including one past Chepchugov in the first leg.
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