The manual will list a pre-service checklist:
For experienced technicians, the schematic diagram is the crown jewel of the PS-855B maintenance manual. Let's walk through a typical fault scenario using the schematic. ps-855b maintenance manual
: The unit performs a self-test under load for 5 seconds when the "Push To Test" button is held. This confirms if the battery capacity is above or below 50%. The manual will list a pre-service checklist: For
The manual’s flowchart distinguishes: