MODEL ER-A320 SERVICE MANUAL - diagramas.diagram...

2) Test No. 2: Keyboard testKey operationX X X X 02 STSum check dataTest command(1) Enter the test command in succession to the sum check dataof the model.NOTE:Model nameSum check data(Standard keyboard data)ER-A320 2518Sum check dataThe check sum is a decimal number obtained byconverting the hard code hexadecimal total of allkeys.The CA/AT key are the exception.(2) Next, push every key on the keyboard except for the receiptand journal keys.When the CA/AT key is pressed, the termination printout isimmediately produced assuming that all keys have beenpressed.There is no order in which the keys have to be depressed.Display: 02 XX XX=position code.[Keyboard position code of model vs. key to be pressed][All key position code]65 68 67 58 77 783) Test No.3: Display and buzzer testKey operation3 STDescriptionContinuous beeps and the display are tested.1. 2. 3. 4. 5. 6. 7. 8. 9. 0.The decimal point is shifted digit by digit from the lowest digit(every 200 msec).Then all segments are lighted (for about 1 sec).8. 8. 8. 8. 8. 8. 8. 8. 8. 8.Pressing any key will terminate the test.Check itemsCheck that each position display is correct.Check that the display is even and uniform.Check that the buzzer sound is normal. (No interruption and vibrationsof sounds.)Test endEnd printState of displayState of displayR7010J412161312064 6344 3424 745443235333736252226642327255457615563575055746361648472817383727184) Test No. 4: Drawer open testKey operation4 ST : For standard drawerDescription001101 14 04 13 0312022625060708With this test, the drawer opens and its state is displayed in thefollowing manner:[ER-A320 standard keyboard layout]Drawer open XX 0Drawer closed XX CXX=04R7010J412161312063347454432353337368554576156756357505585746361677484778383727When the model that has no drawer sensor switch, displayed is"C".TerminationWith depression of any keyTermination print04 (For standard drawer)001101 04130326250608DescriptionUntil the depression of the ST key, the sum of key position codesis compared with the sum check data, except for the CA/AT key.TerminationThe test terminates with the depression of the CA/AT key andthe termination printout is produced.Termination print at normal endTermination print at error