| STEP | OPERATIONS TO BE CARRIED OUT | TEST RESULTS |
|---|
| 1 | CHECK USING DIAGNOSTIC EQUIPMENT | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|
| Connect the Examiner diagnostic equipment to the diagnostic connector check: In parameters ambient- the operation of the "DARK" button
In errors ambient | Move on to Step | 1. The button is not working (the parameter does not change status) | 1. Replace the Control Panel |
| 2. Presence of faults | 2. Continue following the instructions for the diagnostic equipment |
| 2 | ELECTRICAL SYSTEM CHECK | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|
| Remove the Control Panel and check- for a positive power supply for the Display
- the effective connection of the dedicated video connector at the Control Panel. (Wiring Diagram ) E4091 CONNECT
| Move on to Step | 1. No power supply positive | Move on to Step |
| 2. Video connector disconnected | 2. Reconnect the connector. (Wiring Diagram ) E4091 CONNECT |
| 3 | ELECTRICAL SYSTEM CHECK | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|
| Remove the Connect Node and check: - the continuity/insulation of the Display supply lead (Wiring Diagram ) E4091 CONNECT
| Move on to Step | Electrical equipment faulty | Restore the electrical system (Wiring Diagram ) E4091 CONNECT |
| 4 | CHECK ON CORRECT OPERATION | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|
| Check that the fault is no longer present | | Fault persists | Replace the Connect unit See in Op. 5580P20 CONNECT CONTROL UNIT - R.R. |
