Tempremental Pharaoh, help needed

I'd assume your mpu is crashing/not booting. Would be best to bullet proof it. New rom sockets, New interconnect.

#3 5 years ago

BIL

dothedoo

Pinside member

12y 106K 7,265

^^agree, interconnect for sure.

#4 5 years ago

DAD

dontknowsquat

Inactive member

Thanks for the replies, when I bought the game , the previous owner(a fellow pinsider) informed me that he had replaced the inter-connect with a brand new one. Also had replaced the box resistors on the driver board. Here is a twist I forgot to mention. Sometimes when I turn it on it gives a 2504 2 code , for batteries? But it has an NVRAM installed. Only had the game 3 weeks and played a total of 2 games. Very disappointed at this point. Will have one of my daughters take some pictures, maybe even make a short video. Hopefully that will help.

#5 5 years ago

ZAC

zacaj

New interconnect is good. Could still be any of the sockets on the mpu. If it's not booting properly it could easily overwrite some of the nvram and 'invalidate' it just like losing battery power would.

#6 5 years ago

DAD

dontknowsquat

Inactive member

So should I send the board out , or is this something I can do? If I have to send the board out , any recommendations? Thanks.

#7 5 years ago

ZAC

zacaj

If you can do board work it's not complicated but I'd you're not comfortable with it then I'd send it out. Chris Hibler seems to be a popular choice. There's a few other good ones. They also make replacement boards

#8 5 years ago

DAD

dontknowsquat

Inactive member

Could the culprit be a loose NVRAM chip? As I was removing the board from the machine the NVRAM chip fell on the floor. Don't know much about it, but can't imagine when they designed it , they wanted it to be that loose. All the other sockets were nice and snug . When you buy the NVRAM chip does it come with its own socket? Thanks.

#9 5 years ago

ZAC

zacaj

OP
Quoted from dontknowsquat:
Could the culprit be a loose NVRAM chip? As I was removing the board from the machine the NVRAM chip fell on the floor. Don't know much about it, but can't imagine when they designed it , they wanted it to be that loose. All the other sockets were nice and snug . When you buy the NVRAM chip does it come with its own socket? Thanks.

That could cause issues, yes. Not sure if they come with a socket, but I have had issues because the nvram legs go straight down. I just swapped a regular ram chip back in :/

#10 5 years ago

ABH

acebathound

Pinitech

12y 89,050 2,585

OP
Quoted from dontknowsquat:
Could the culprit be a loose NVRAM chip? As I was removing the board from the machine the NVRAM chip fell on the floor. Don't know much about it, but can't imagine when they designed it , they wanted it to be that loose. All the other sockets were nice and snug . When you buy the NVRAM chip does it come with its own socket? Thanks.

Shouldn't be that loose. The pins used on most NVRAM are a bit thicker than a regular IC, so it should hold it plenty firm unless the NVRAM isn't seated fully in the socket or the socket is really worn out. In terms of not being inserted fully, I've had a customer or two tell me the NVRAM just falls out and they realized they weren't pushing it in very far. If you line it up with the socket, then push it in.. it should noticeably feel like it inserted and is seated down further into the socket. One guy told me he hadn't realized it was going to take a bit more pressure than he expected. Don't go too nuts with pressure, but it should take a little force for it to seat down in the socket -- if it hardly takes anything to insert it and you can remove it with a light tug.. or it just falls out, you'll have to replace the socket.

Each NVRAM I sell includes an IC socket by default, but it's anyone's guess where the one in your board came from.

#11 5 years ago

DAD

dontknowsquat

Inactive member