Ps-855b Maintenance Manual [ Top 10 Popular ]

According to the maintenance manual, 80% of “low +5V” cases are fixed by replacing C20, C21, and C23 (three capacitors costing under $5 total).

The number PS-855B suggests a (PS) model. Look at the physical label on the device for other clues:

Key specifications generally include:

The PS-855B is a high-performance [insert type of equipment, e.g. power supply, amplifier, etc.]. This manual provides maintenance and repair information for the PS-855B. It is intended for trained technicians and engineers responsible for maintaining and repairing this equipment.

A required inspection to verify battery condition and general unit integrity.