R5906848 /04 DP2K SLP Series374
Code 21337: “lpt 1 - lls bank 9 cold side temperature sensor open”
Situation Solution
Malfunction temperature
sensor on Peltier Control
Board.
Replace the Peltier Control Board. See “Replacing the Peltier Controller”,
page 64.
Code 21342: “lpt 1 - lls bank 9 hot side temperature too high”
For this error the same troubleshooting table can be applied to as for code 21335: “lpt 1 - lls bank 9 cold side
temperature too high”.
Code 21343: “lpt 1 - lls bank 9 hot side temperature sensor shorted”
For this error the same troubleshooting table can be applied to as for code 21336: “lpt 1 - lls bank 9 cold side
temperature sensor shorted”.
Code 21344: “lpt 1 - lls bank 9 hot side temperature sensor open”
For this error the same troubleshooting table can be applied to as for code 21337: “lpt 1 - lls bank 9 cold side
temperature sensor open”.
Code 21345: “lpt 1 – 24V input 1 voltage too low”
Situation Solution
Cable / connection issue Check and reseat the wire unit between the LDM (1-7) and the Peltier
Control Board (J100). Replace if necessary.
malfunction +24V module Replace the +24V module in the LDM (LDM slot 7). See service procedure
“Replacing a driver board in an LDM unit”, page 48.
If problem persists, replace the LDM. See service procedure “Laser Driver
Module (LDM)”, page 45.
malfunction Peltier Control
Board
Replace the Peltier Control Board. See “Replacing the Peltier Controller”,
page 64.
Code 21348: “lpt 1 – 24V input 1 voltage too high”
Situation Solution
malfunction Peltier Control
Board
Replace the Peltier Control Board. See “Replacing the Peltier Controller”,
page 64.
Code 21349: “lpt 1 - 24V input 2 voltage too low”
Situation Solution
Cable / connection issue Check and reseat the wire unit between the LCB (J407) and the Peltier
Control Board (J101). Replace if necessary.
malfunction Peltier Control
Board
Replace the Peltier Control Board. See “Replacing the Peltier Controller”,
page 64.
malfunction LCB Replace the Laser Control Board (LCB). See service procedure
“Replacing the Laser Control Board (LCB)”, page 64
Code 21352: “lpt 1 - 24V input 2 voltage too high”
Situation Solution
malfunction Peltier Control
Board
Replace the Peltier Control Board. See “Replacing the Peltier Controller”,
page 64.
Troubleshooting
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