User manual for the device Pioneer DEH-2400UB. Online user manual database.Manuals for DEH-2400UB. User manual. Languages. German, English, Spanish, French, Italian, Dutch, Russian. Issuedate. 01-04-2012. Filesize. Select MAN (manual tuning) to tune up or down manually or select PCH (preset channel) to switch between preset channels. 1 Press M.C. to select MAN or PCH. CD/ Pioneer DEH-2400UB Car Electronics CD Receiver download pdf instruction manual and user guide. The page is about user manuals, installation instructions, specifications, pictures and questions and answers of Pioneer DEH-2400UB.