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dj10555
12th December 2009, 01:59 PM
Went out to have a look at a couple of games on site the other today.
One of the games is a Namco Victory Lap. The game displays a message "waiting for I/O board ready" on both screens. Does anyone have any experience with this game or any spares?

Original power supplies have been replaced with 2 arcade power supplies for the 5v. Both measured 5.1v. Another power for the 12v rail measures 12.1v. The test switch does not work so I can't get into any further diags. I assume the game has 2 x I/O cards on the outside of each game cage. These boards have a red and green LED but are both off. Game was working until power off and moved then the above error occurred. Have been round and checked for any loose cables. Is there any boards located in the largest upper rear panel of the game? I can partially open this but cannot fully remove the panel as the security screws have been all stripped.

regards Derek

serviceit
12th December 2009, 03:24 PM
http://www.namco.co.uk/PDF-manuals/namco-manuals/Victory_Lap_Manual.pdf
Page 23 would be a good starting point.

dj10555
4th January 2010, 06:29 PM
Checked through the manual but didn't help. I am unable to even get the game to go into test mode as it is stuck on the error message.

Any other suggestions welcome!

serviceit
4th January 2010, 06:57 PM
I have had a similar problem with Time crisis, when both i/o boards went faulty from a short on the 24v line.
So you might need to find another I/O board to test with.

tye3333
6th January 2010, 11:44 AM
is it the DX or just the SD ?

dj10555
6th January 2010, 11:58 AM
I'm not sure of the difference. This one is the dual version (DX?)
I have found these one problem with the buffer chips on the EMI board. Would anyone have any spares of these V141 EMI PCB

tye3333
6th January 2010, 06:17 PM
sorry, dulux or standard (moving seats or not)

dj10555
6th January 2010, 06:30 PM
Thanks. This one has the moving seats.

Hi Serviceit, I have found one problem on a chip on the EMI filter board which apparently buffers the signals to the I/O boards so I am checking this further. Will also check your suggestion as this would explain both boards going faulty together. Do you know if Namco have in agents in Australia or any other ops who might have a System 22 I/O board I can borrow or purchase?

regards Derek

Berty
7th January 2010, 12:29 AM
I had five spare ones at one stage... it is really common for the System 22 IO boards to shit themselves.

"Waiting for IO" means that the main stack cannot detect the IO board / its not plugged in / its possibly the EMI board. (I think that only one LED will be lit on the IO, but I cannot remember which one)

"IO Board Error" means that the fault is on the System 22 IO board, most likely with two solid red and green LED's (i.e. its rooted)

Hewitson
7th January 2010, 06:03 PM
I am unsure why you want to replace the board. If you know whats wrong with it why don't you fix it.

serviceit
7th January 2010, 10:23 PM
namco agent is http://www.zax.com.au/spare_parts/i_namco_video_games.html

dj10555
11th January 2010, 06:45 PM
Thanks ServiceIT and Berty for the info! I found it strange that both boards sets had the same error but sounds like this is not uncommon. At least I know what to look for with the error code/LEDS now. I could not find much information on line. I may try to pickup a spare IO board anyway to help with troubleshooting in the future.

dj10555
3rd February 2010, 08:07 PM
Ended up replacing the AC04 and HC04 chips on the filter pcb but unfortuantly it didn't solve the problem. Will try to source a replace System 22 I/O board.