Name: KERN PNJ
Brand: KERN
Rating: 5 (1 reviews)

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PNJ_PNS-SH-e-2011 - 2 -

KERN PNJ/PNS

Version 1.1 03/2020

Servicemanual

Content

1 Basic Information ........................................................................................... - 3 -

2 Introdution ...................................................................................................... - 3 -

3 Keyboard overview ........................................................................................ - 4 -

3.1 Overview of display ............................................................................................................... - 5 -

3.2 Removing the case ................................................................................................................ - 6 -

3.3 Attaching the case ................................................................................................................. - 7 -

4 Trouble shooting table .................................................................................. - 8 -

4.1 Initial inspection .................................................................................................................... - 9 -

5 Troubleschooting procedure ...................................................................... - 10 -

6 Inspection of electrical section (AJDP circuit board) ................................ - 11 -

7 Adjustment ................................................................................................... - 12 -

7.1 Adjustment with internal weight (only models PNJ) ........................................................ - 12 -

7.2 Adjustment with external weight (only models PNS) ...................................................... - 13 -

7.3 CALIBRATION OF BUILT-IN WEIGHT (REF CAL) .............................................................. - 15 -

7.4 Resetting address data and linearity calibration .............................................................. - 17 -

7.5 Resetting address data (coefficients) ................................................................................ - 18 -

7.5.1 Location for where to attach ..................................................................................... - 18 -

7.5.2 How to read the data sheet ....................................................................................... - 18 -

7.6 Linearity calibration ............................................................................................................ - 19 -

7.7 Corner Error Adjustment .................................................................................................... - 20 -

7.8 Overload adjustment ........................................................................................................... - 22 -

8 Replacing the AJDP circuit board .............................................................. - 23 -

8.1 How to remove the AJDP circuit board ............................................................................. - 23 -

8.2 Install the AJDP circuit board ............................................................................................ - 25 -

9 Removing the mechanism unit ................................................................... - 27 -

KERN PNJ User Manual

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