Swecoin TTP 5200, Service Manual

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TTP 52x0 Series Kiosk Printer — Service Manual December 2001 50
5.2.3 PCA Revision G
REASON FOR CHANGE
When EMC testing rev. F, some additional modifications was made to increase the
margins to EMC test limits.
CHANGE DESCRIPTION
The following components have been changed:
Name Old value New value
C29 100k Ω 2.2k
C30 100k Ω 2.2k
5.2.4 Printed Circuit Board (PCB) Revision D
REASON FOR CHANGE
The manual changes of PCA Rev. F has now been incorporated in the PCB layout.
Printhead data out is now fed back to microprocessor for automatic printhead width
determination.
CHANGE DESCRIPTION
The following components have been changed 2001-01-30:
Z1=BZX85/C12 added (stepper motor).
C69=100pF, added EMI-filter on printhead data input.
Mounting holes modified (No longer plated).
BACKWARD COMPATIBILITY
The new boards are fully backward compatible.