Thermo Scientific SAM12 Manual page 14

Contents
Chapter 11 Maintenance and Trouble Shooting .................................................. 11-1
Fault Messages ...........................................................................................................................11-1
Power-up Screens .............................................................................................................11-1
Self Test Screens...............................................................................................................11-1
Device Error Messages .....................................................................................................11-2
Operational Self Tests.......................................................................................................11-2
Servicing of the Electronics Chassis - Type 5689A .................................................................11-3
Removal of the Top Cover................................................................................................11-3
Removal of the Electronics Chassis from the Main Frame...............................................11-3
Removal and Replacement of the Power Supply..............................................................11-4
Battery - Removal and Replacement ................................................................................11-5
Battery Controller Board Type 5660A - Removal and Replacement ...............................11-5
Controller Board type 5670A - Removal and Replacement .............................................11-6
FHT681 cards - Removal and Replacement .....................................................................11-6
Removing & Replacing the Mains Inlet/Filter Assembly.................................................11-7
LCD Display, Touch Screen, Touch Controller & Backlight Inverter - Removal and
Replacement .....................................................................................................................11-8
Front/Rear Panel LED's - Removal & Replacement .......................................................11-8
Start Switch, Keyswitch and Loudspeaker - Removal & Replacement ............................11-9
Detector Removal and Replacement ........................................................................................11-9
Removal............................................................................................................................11-9
Detector Replacement.......................................................................................................11-9
Setting up Replacement Detectors for Use .......................................................................11-9
Door Lubrication .....................................................................................................................11-10
Door Catch and Lock Replacement and Adjustment ...........................................................11-10
Replacement and Adjustment of (Chrome) Lever Catch................................................11-10
Replacement Door Stop Block .......................................................................................11-11
Trouble Shooting......................................................................................................................11-12
Normal Start-up (Boot-up) Operation.............................................................................11-12
Unit "dead" (will not boot up) & charging LED is OFF.................................................11-13
Unit "dead" (will not boot up) & charging LED is ON ..................................................11-13
Starts-up but Display is "Blank" & Fails Self Tests (no chimes) ...................................11-14
Will not run & displays "Out Of Service - Low Background Counts" ..........................11-14
Will Not Run & Displays "Out Of Service - High Background Conditions" ................11-15
Fails Lamp or LED Tests................................................................................................11-16
Fails Loudspeaker Test ...................................................................................................11-16
Fails the LCD Display Test ............................................................................................11-16
Display Backlight Failure ...............................................................................................11-17
Will Not Accept Valid Passwords ..................................................................................11-17
LCD Keypad Inoperative or Not Aligned.......................................................................11-17
Will not Enter Background Mode...................................................................................11-18
Locked in Background Mode .........................................................................................11-18
Locked in Measurement Mode .......................................................................................11-19
USB Output Data is Corrupted .......................................................................................11-19
Chapter 12 Spares List .......................................................................................... 12-1
Recommended Spares List ........................................................................................................12-1
Spares List ..................................................................................................................................12-2
Drawings List (by Assembly) ....................................................................................................12-3
Drawings List (Letter and Numerical Order) .........................................................................12-4
Accessories List ..........................................................................................................................12-4
xii SAM12 User Manual
Issue: 1.0
Thermo Fisher Scientific