TI-65 Technical Analyst Timer

From: Harald
Email: thyme@gmx.net

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Hi, just acquired a TI-65 without manual. How do i activate the timer functions? Pressing 1 : 2 : 3 then 2nd-TDn puts 1:02:03 and T<downarrow> into the display, but the timer doesn't start to tick and the calculator responds only to the 0-9 (stores the displayed time into register?) and C/CE-keys. TIA, Harald