Fault Location Via Error Codes - Fluke PM3082 Service Manual

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The figure shows this.
If a calibration step is not completed succesfully, this is indicated at the end of the autocal procedure.
This is displayed on the CRT with a message:
'ERROR DURING AUTOCALIBRATION' Via key sequence UTILITY> MAINTENANCE, you can
reach a screen where an error code YXX is displayed in the bottom text line.
YXX is a hexadecimal number indicating the first adjustment step that could not be adjusted to an
optimal position.

8.13.2 FAULT LOCATION VIA ERROR CODES

The reason that an error code is displayed after an unsuccesful autocal can be:
1 - the manual calibration adjustment is not OK.
2 - a deviation of supply voltage(s) that affects all circuitry.
3 - a defective circuit part.
If calibration adjustment and power supply are OK, it may be that a defective circuit part is causing
the error code. The error code gives information in what circuit part the fault may be found. This
circuit part lies of course between input (stimulus) and output (response). This publication
gives a survey to indicate for each error code the circuit part to be involved.
8.13.3 HOW TO USE THE ERROR CODE LISTS
The error codes are listed in sequence of error number: 001,002, etc. They are grouped per function:
time-base, final amplifiers, etc.
For each error code is given:
- error code: this is a hexadecimal figure.
- calibration step: a short description of the adjustment that could not be completed.
- input: signal name and circuit diagram number of the stimulus.
- control signal: signal name and circuit diagram number of the DAC output to be adjusted.
- output: signal name and circuit diagram number of the response.
The circuit diagram number (e.g. A2/1/D1001) gives information about the printed circuit board (A1,
A2, etc.), the number of the diagram itself (1,2, etc.) and the component to which the signal is applied
(e.g. D1001). A node number (e.g. N1001/17) is given if a signal has no name.
CORRECTIVE MAINTENANCE PROCEDURES