This module consists of integrated circuits, transistors, resistors, capacitors and diodes. A label attached says that one of the capacitors is bad. The board is stamped with a copyright "SD S-66".
Manufacturer
Scientific Data Systems (SDS)
Identifying Numbers
Other number
152271A
Printed in white at right side of module on component side.
Other number
152272
Printed in white at top of module on component side.
Other number
919B
Stamped in black at top of module on circuit side.
Other number
WT55
Printed in white at top of module on component side.