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rotai RT-7900S - Page 21

rotai RT-7900S
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4.6 Power Box Removal Guide
Maintenance Guide - Inner structure & installation
1.Unscrew the 3 bolts on the top
cover and 3 bolts on the
internal cover
2. You may replace: main board pcb, user connecting pcb, power board
pcb,transformer,air pump and air valve.