Mouse doesn't work on first port

[RiP]

My Amiga 2000's mouse doesn't work on the first/right port.
Even its buttons don't work but no problem with the second/left port.
Joystick works on both ports though. Anyway to fix it? It's B2000 rev. 6
I have even swapped those two CIA chips but made no difference
http://phota.me/FA23.jpg

[RiP]

Yes, but I have different problem.

[RiP]

I said even the mouse buttons don't work but no problem with the second/left port.
Joystick works on both ports though.

[RiP]

5V is OK on both ports.

[RiP]

Hi,

That isn't a picture of your mainboard (it's from BBOAH

Here's mine. I swapped those two, dunno exactly if those are CIA or not:

http://phota.me/vwjf.jpg

[RiP]

Have you tried removing and re-seating Denise (U201)? The M0V and M0H signals eventually end up on pin 38 and pin 9 of Denise respectively.

Here's a list of parts that /could/ be suspect, starting at the signal side (joystick port):

Pull-up resistor pack RP200 (bottom left)
Pull-down resistor pack RP205 (bottom left)
Feed resistor pack RP204 (bottom left)
Quad multiplexer U202 (bottom left)
Denise IC U201 (bottom middle)

It's a bit odd that both joysticks work perfectly, though. If you have an oscilloscope, you could try looking for a pulsetrain at pin 38 and pin 9 of Denise (while moving the mouse plugged into port one), and comparing it to pins 9 and 12 of U202 to check if there is a break in the signal path between both ICs

I'll try re-seating Denise but fear of de-soldering the rest.
What's the best way to re-seat those ICs?

Gah. Get that old Varta battery out of there, asap.

I know but I fear of de-soldering
Can I replace it with lithium battery or else?

[RiP]

Still fear of de-soldering lol

Found two new things that might help:
1. When I load/boot IK+ from floppy, I should press the joystick/mouse button of the left port to continue.
Pressing the joystick button of the right port won't let me to continue to play the game.
After that, I can play the game with both joysticks though.
2. The left port has stronger/sturdy pins than the right board, doesn't bend at all.

[RiP]

Thanks
I meant in Workbench too. I'll check it in the games too later.

[RiP]

My problem was in fact fuse F1 blowing. I've ordered a bag of them off eBay.

But my 5V is ok.

[RiP]

There is nothing wrong with your motherboard, that is the way it is supposed to be.
The mouse only works on the left port while joysticks will work on either port.
The Amiga specifically looks for the mouse on the left port, if you put a game in and set it to single player, it will look for a joystick on the right port, if you set it to dual player, it will look for joysticks on both ports.
You can tell the Amiga to look for the mouse on the right port, but frankly, WHY? if it works fine on the left port...leave it there and don't worry about it.

Dave

Oh thank you very much :hammer:
Just connected mouse to the right port and it worked in the IK+ two player game.
No way to make it to work in Workbench?

[RiP]

Finally I de-soldered it and soldered some wires for later if I wanted to add new battery, probably 3.6V Ni-MH (My battery was 3V Varta though)