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HL-2140 student machine operation instruction

“R、L、R+L”: choose right and left channel。
 “VOL+、VOL—”:volume adjustment。
 “PROG1、PROG2”:choose A. B signal channel
 “A、B、C、D、E”button: choose answer under testing,“UP , DOWN”button for page up and down(student terminal should be with monitor)
 “CALL”:for calling and rob to answer
 Seat coding: short-circuit flake is required(details found in installation instruction)

2nd Floor,Block D,Xinsheng Industrial Park,Xintang Avenue,Tianhe District,Guangzhou,China. Tel:0086-20-85571786 FAX:0086-20-85578797 e-mail: 

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