Sony VPH-G70Q Manuel D'installation page 26

Switching the 75-ohm Terminate Connectors
Setting the CN35 (R), CN36 (G) and CN37 (B) 75-ohm terminate connectors
B board
26
(EN) Connections
4
Open the wire holder and pull up the B and BA boards carefully
while lifting up the card puller. Be careful not to pull the wires.
5
Switch the CN35, CN36 and CN37 connectors on the B board.
For details, see "Setting the CN35 (R), CN36 (G) and CN37 (B) 75-
ohm terminate connectors."
6
Perform the steps 1 to 4 above in the reverse order to replace the B and
BA boards.
75 Ω (pin position 3): This position is selected at the factory.
OPEN (pin position 1): Set to this position when the input signal is
distributed into other equipment using a branch connector and is
terminated at 75 ohms on that equipment.
Pin positions set at
the factory
3 2 1
CN35
3 2 1
CN36
3 2 1
CN37
3 2 1
CN38
3 2 1
CN39
3 2 1
CN40
Note
The pin positions of the CN38, CN39 and CN40 connectors are set at the factory
as illustrated. Do not change the settings.
B and BA boards
How to switch the connector