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8.6.
Replacement method for
Power board
1. Remove the couplers that are connected to the Power
board.
Couplers on the Power board: K601, KIV2, KIV1, K6C,
K6B, K6A
2. Remove the screws (47V type: 9 screws, 42V type: 8
screws) that screw the Power board in place. (SCR
PAN+SW+W 3X8) Pull out the boss (plastic) that holds
the Power board.
3. Remove the Power board carefully and replace it with the
replacement board. (The replacement board is equipped
with a fuse.)
8.7.
Replacement method for AC
cord bracket
1. Remove the K601 connector for the AC cord bracket from
the Power board.
2. Remove 1 screw that screws in the earth wire for the AC
cord.
Screw: SCR BIN 4X6
3. Pull out the AC cord bracket from the slit on the cabinet
back.
4. Remove the screws (Qty. 2) and nuts (Qty. 2) shown in
the illustration, and then remove the AC cord component.
Screw: SCR BRZ 3X10, Nut: NUT HEX 3
5. Replace the AC cord.
Precautions when removing and installing
• The lead wire is affixed to the shield casing on the main
board with aluminum foil tape. Re-use the shield casing
with the lead wire affixed as is.
• The gasket is affixed to both sides of the main board.
The gasket is not included on the replacement board, so
replace the gasket at the same time as well.
19
TH-42LF20W / TH-47LF20W
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