Repair Services for Industrial and Commercial Customers
Procond Elettronica
Diodes
Depending on the version you have....
DZ2 = 3.9V 1/2Watt (replace with higher wattage)
DZ1 = 15V 1 watt (replace with 5 watt)
DZ4 = 24V 5 watt
-OR-
New versions have
DZ4A and DZ4B = 12v 5 watt each
Resistor is 1K, I replaced it with a 10Watt wire wound 5%.