Power Up Basics (Panasonic Q)
There are several stages of power up on the board, as well as over-current protection which trips the relay.
In order to power up the console to standby power (red light on front board, in sleep) you require:
- AC power board to receive 110V power
- Connector P connected to Top Lid
- Connector S connecting Top Lid to Front Board
This allows the standby DC power from the AC board to go to the Top Lid and into the Front Board to give the standby power light.
If you do not get to this stage, check the mains power in, the fuse, the AC board for any faults, and the connector P and S for problems.
Power draw in standby at 110V should be around 15mA.
Press the power button on the Front Board and you should hear the relay on the AC Board click and then power is provided to the DC Power board and partial system power.
You should also see HELLO, then CLOSE, OPEN or DVD/CD or similar show on the Top Lid if you only have the Top Lid, Front Board and AC Board connected.
If you don't hear the relay, check the cables and wiring on connectors P and S.
If you hear a double click (click on, then off) you have a short or fault somewhere in the system and the over-current is protecting and turning off.
Next up if all went well, connect up the DC Power Board via the thick 2 pin black and red wire (AC 110V) and the 5 pin black harness wire on the other side.
When the relay kicks in (from pressing power on) the 110V AC is passed into the DC Power Board, which is responsible for generating the 12V, -12V, 5V and 2.5V via connector N, and 12V DC via connector M which goes to the GameCube Power Board.
Start by connecting just the DC Power Board to the AC board and nothing else. Test turning on again and make sure the relay does not click back off.
Next connect M to the GameCube power Board, L from that to the GameCube, and test again.
After that connect J from the GameCube Power board to the Side Board and test again.
Next, connect N from the DC Power Board to the Side Board and test again.
Continue on then connecting back all parts of the system together.
If you find that once you connect parts of the system together that you get the relay to trip, check that part for shorts as it is triggering the over-current protection on the relay.