Troubleshooting Erratic Pen Movement; Troubleshooting The Keypad And Display; Table 8-9 Troubleshooting Erratic Pen Movement Symptoms; Table 8-10 Troubleshooting Keypad And/Or Display Failure Symptoms - Honeywell DR4300 Product Manual

DR4300 Circular Chart Recorder

8.5.5 Troubleshooting Erratic Pen Movement

Procedure
Table 8-9 explains what to do if the pen remains at the high end of range when the input signal is low.
Step
Check the sensor and lead wires for
1
continuity. Check the connections to TB2
on the printed circuit assembly for the pen
with the problem.
Check the pen and input configuration
2
data.
Run step test.
3
Replace the servo plate assembly.
4
Replace the printed circuit assembly for
5
the pen having the problem.

8.5.6 Troubleshooting the Keypad and Display

Procedure
Table 8-10 explains what to do if a key does not respond and/or the display does not light.

Table 8-10 Troubleshooting Keypad and/or Display Failure Symptoms

Step
1 Run a Key Test to check the operation of
the keys and displays.
2 Verify correct alignment of display cable
with pins on connector at display module
and main PCA.
Replace the display and keypad
3
assembly or display cables, as required.
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Table 8-9 Troubleshooting Erratic Pen Movement Symptoms

What to do
What to do
DR4300 Circular Chart Recorder Product Manual
How to do it or
where to find the instructions
Replace the sensor lead wires as needed.
Tighten the connections.
Refer to Section 4 – Configuration, Startup, and
Operation of Recorder with Display.
Refer to Section 4 – Configuration, Startup, and
Operation of Recorder with Display (Subsection
4.4.3).
Refer to the replacement procedure in Section 9
– Replacing Hardware Assemblies.
Refer to the replacement procedure in Section 9
– Replacing Hardware Assemblies.
How to do it or
where to find the instructions
Refer to Section 4 – Configuration, Startup, and
Operation of Recorder with Display for procedure
for running key test (Subsection 4.4.4.4).
Insure tracks on cable are aligned with pins on
connector.
Refer to the replacement procedure in Section 9
– Replacing Hardware Assemblies.
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