There are two (2) of these boards and both are damaged. Each board consist of a power source, resistors, diodes, capacitors. transistors and an intergrated circuit. There are several inspection stamps on the circuit side.
Manufacturer
Scientific Data Systems (SDS)
Identifying Numbers
Other number
042 D
Printed in black at top edge of circuit side.
Other number
152471C
Printed in whiite at left edge on component side and marked "PWB NO.".
Other number
152472
Printed in white at top edge on component side marked "ASSY NO.".