Panasonic KV-S5046H - CIS(F) RELAY Board; USS RELAY Board

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8.3.3. USS RELAY Board
8.3.4. CIS(F) RELAY Board
1. Remove the Rear Cover. (See 8.3.2.)
2. Disconnect the 4 connectors.
3. Disconnect the flat cable.
4. Remove the 3 screws.
Then, remove the USS RELAY Board.
1. Remove the USS RELAY Board. (See 8.3.3.)
2. Release 3 clampers from the RELAY USS Plate.
3. Remove the 4 screws from the Relay USS Plate.
4. Remove the 4 screws on both sides of CIS(F) RELAY Board.
5. Disconnect 2 connectors and Flat cable from CIS(F)
RELAY Board.