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Failure to observe this, press the volume key changes in program number, press the program key or keys are preset volume changes occur, not preset programs.Lruservice manual download site
This fault is a Q plate and K plate, Q and R plate connection plate while bad cause, the solution is: Reconnect these connections and making K board to allow the keyboard to normal.Lruservice manual download site
Connection must pass through the keyboard box, but too much will increase the connection pop-propelled friction, and thus the connection possible. The first plate K R013, R014 respectively welded between plate ¢Ú Q Q1 socket, ¢Ý feet and (¢Û, ¢Ý feet, this can be omitted Q2 5V power socket to the new connection between the plate K, Q panel between the new K board to have only three wires to complete the connection between the Q board to R board.Lruservice manual download site
Lruservice manual download site
Remove the plate Q2 Q and R socket board feet ¢â ¢à pin socket R1, make these two holes for welded connections. Hauled K board abandoned the original keyboard box.Lruservice manual download site
Connect the receiver's remote control (see Figure 1): Take the proper length cable, one end of each plate welded ¢à R R1 socket, ¢Ü, ¢Ý feet, through the keyboard cable box, the other end of Q2 plates were welded socket Q The ¢Ü, ¢à, (9) pin.Lruservice manual download site
K board production: a button on the keyboard to pull down ten small cover on the box, ready thirteen micro switch (hereinafter referred to as the switch). Button at the bottom of the original hole fixed switches, push button switches to wear one of the original hole should be slightly larger than the outer shell of the original switch button holes for adhesive bonding with AB, switch button after bonding should not be higher than the original button. Thirteen switch is connected to the common point with the bare wires together, R002 ~ R012 and then welded to the corresponding switch, the switch resistance placed in the vicinity of the trench. After completion of the above work, take the appropriate length of cable, a switch connected to the common point of thirteen, then s002 and R002 ~ root node (ie AD0), then s008 and R008 a node (ie ADl), row line through the keyboard box, the other end of Q2, respectively, then ¢Ü Q board socket, (3), ¢Ù feet.
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