FCO 19649 Dolev 800P - CRI Board - Replacing Component CR 205 in cases of Stepper Signals from CRI Board are Distorted.

Part(s) Affected: 503D29069

This FCO should be implemented in cases where the Stepper signals from the CRI are distorted. In such cases the implementation of the FCO might improve the performances of the stepper.

Explanation of Conditional Change
Reason for Change
Description of Change
Change Procedure
Test Procedure
Parts List
Logistics

Explanation of Conditional Change

This FCO should be implemented in cases where the Stepper signals from the CRI are distorted. In such cases the implementation of the FCO might improve the performances of the stepper.

FCO Kit part no. : 510F19705
Change compatibility level from N to O

Reason for Change

Improve design.
Possible solution for excessive Stepper vibrations.

Description of Change

Replace component CR 205 from 130B05600 to 130B04300.

Change Procedure

Note: This FCO should be implemented only in cases where the following test will:

Show a distorted signal from the CRI board to the Stepper Driver Board.
Connect an Osciloscope to Tp3-4 (GND at TP1) on the Stepper Driver Board.
Operate the Spinner Motor and view the sine signals.

If the sine wave appears perfectly okay, then the FCO should not be implemented. If the sine wave is cut in the top of the signal, then the FCO should be implemented.

Power off the Imagesetter.
Remove the CRI board from the standard controller.
Use a soldering tool and a cutter in order to remove CR205 component.
Solder the new component cat.no. 130B04300 instead of the removed one.
Change the board comp. level from N to O.

Test Procedure

Repeat the test mentioned in the change procedure section. Verify that stepper sine waves have been improved.

Parts List

The kit for performing this FCO consists of:

130B04300

DIODE ZENER 0.4W 4.3V

x 1

Logistics

Material for performing this FCO will be shipped according to orders from the subsidiaries.