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Notes on P PCB during exchange (85AX900)
The power supply of 85 inch model is configured P board and PB board.
If P or PB board is replaced, discharging the capacitor of PB board is required.
If P or PB board is replaced, discharging the capacitor of PB board is required.
P board may be broken without discharging.
AX850/X940
< Applicable Model : 85AX850, 85X940 (85 inch model) >
PB Board
P Board
Discharge point A
(insert the lead of resister
to touching the solder
of back side)
of back side)
Discharge point B
(=touching to the
lead of capacitor)
lead of capacitor)
< Discharge method of P/PB board >
1. Don’t disconnect the cable except AC plug.
Discharge with the recommended resistance
to the discharge point A or B (printed on the PB board).
to the discharge point A or B (printed on the PB board).
2. After discharging (about 15 seconds), measure the voltage
at discharge point B. After confirming less than 15V, replace
the P/PB board.
(#The maximum voltage of discharge point is 390V)
the P/PB board.
(#The maximum voltage of discharge point is 390V)
*If replacing only panel module, unnecessary discharging.
Recommended resistance: ERG5SJ102 (5W, 1kΩ)
55
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