American-dynamics AD2089 Manuel d'utilisateur télécharger pdf (Page 17)

Connection and Setup of the AD2089

Built-in Keyboard Operations Test

The AD2089 has built-in test capability to verify the operational integrity of the unit's hardware and

firmware. Built-in test functions include the following:

• speaker test

•LED lamp test

• LED brightness test

• LED seven segment test

• joystick calibration / speed test

• key functionality test

• keyswitch test

• serial communications test

• ROM checksum test

Procedure to Initiate Built-In Test

1 Unplug the keyboard's wall transformer.

2 Disconnect the matrix switching system's modular cable from the dual terminal block (J2).

3 Connect a jumper wire to pins 4 and 5 on the J1 side of the dual terminal block.

4 Detach the bottom plate of the keyboard by removing the four screws.

5 Press and hold down the button labeled "test switch", while simultaneously plugging in the wall

transformer.

CAUTION !

The following procedures expose internal

electrical components and should be performed

by qualified service personnel only.

AD2089 Keyboard

Underside

XMIT/RCD SELF-TEST

JUMPER CONNECTION

DO NOT CONNECT TO

SYSTEM DURING

BUILT-IN-TEST

Each test is performed in sequence. Press the test switch button to advance to the next

test procedure. To quit the test sequence, unplug and then re-plug the wall transformer

1 2 ... 12 13 14 15 16 17 18 19 20 21 22 ... 59 60

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American-dynamics AD2089 Manuel d'utilisateur Page 17