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(5) Power circuit board (JT-30P3H/JT-30P3)
1 Remove the front panel. → See (3) 1 to 2.
2 Unscrew the clamping screws, and remove the board cover (power).
(Two PTT screws 4×16, indicated by )
3 Disconnect the lead wires from the power circuit board (JT-30P3H/
JT-30P3), and remove the power circuit board.
Assembly precautions
• Take care not to pinch the lead wires.
• Connect the lead wires as printed on the power circuit board.
(6) Display circuit board (JT-30S5)
1 Remove the board cover (power). → See (5) 1 to 2.
2 Remove the display circuit board (JT-30S5) from the spacer.
Assembly precaution
After installing the circuit board, make sure that all LEDs are upright.
(7) Filter circuit board (JT-30F3)
1 Disconnect the lead wires for the filter circuit board (orange) (TAB1
and TAB2) from the power circuit board (JT-30P3H/JT-30P3).
→ See (5) 1 to 3.
2 Unscrew the side panel (left) clamping screw.
(One PTT screw 4×16, indicated by )
3 Disconnect the lead wires for the display circuit board (blue) (CN18)
from the control circuit board (JT-30M3/JT-30M2).
→ See (3) 3 to 4.
─ 21 ─
Board cover (power)
Power circuit board
(JT-30P3H/JT-30P3)
Display circuit board (JT-30S5)
Filter circuit board lead wires (orange)
Display circuit board lead wires (blue)
Spacer

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