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Main => Main Forum => Topic started by: BUCKETHEAD on November 13, 2006, 06:05:32 pm

Title: PAC-MAN / LM1877 (Sound Chip) Can't find location 10-A ( help! )
Post by: BUCKETHEAD on November 13, 2006, 06:05:32 pm

Im trying to replace my LM1877 (Sound Chip) on my PAC-MAN board.

According to the PAC-MAN manual it goes in 10-A

I see every location on the board except 10-A ?

Can anyone please give me a visual as to where this location is on the board?

I've looked the board over like 50 times!   >:(


Thanks in advance!  :)

Title: Re: PAC-MAN / LM1877 (Sound Chip) Can't find location 10-A ( help! )
Post by: SirPeale on November 13, 2006, 06:24:08 pm

http://www.angelfire.com/planet/linolsgameroom/PacManPCB.JPG

The sound circuitry (at least the amp portion) is in the upper left hand corner of this photo.  If I had to wager a guess, I'd say something to do with the sound would be there.

Title: Re: PAC-MAN / LM1877 (Sound Chip) Can't find location 10-A ( help! )
Post by: BUCKETHEAD on November 13, 2006, 06:34:24 pm

Thanks Peale,

But your picture is not showing up.

Man i tell you i have looked over this board 60 times now.

I can't find 10-A

I see everything else the manual is pointing out!   >:(

Title: Re: PAC-MAN / LM1877 (Sound Chip) Can't find location 10-A ( help! )
Post by: BUCKETHEAD on November 13, 2006, 06:42:45 pm

Found it !!!

It is behind that Big Metal Sheild thing ?

I looked in the manual, And it has a drawing of the board.

It shows a picture of the chip without the shield on top of it.

Thanks,  Peale!

Title: Re: PAC-MAN / LM1877 (Sound Chip) Can't find location 10-A ( help! )
Post by: SirPeale on November 13, 2006, 08:19:08 pm

Quote from: BUCKETHEAD on November 13, 2006, 06:34:24 pm

Thanks Peale,

But your picture is not showing up.

Probably have to cut and paste the link to get it to show up.

Quote from: BUCKETHEAD on November 13, 2006, 06:42:45 pm

Found it !!!

It is behind that Big Metal Sheild thing ?

That a question?  The shield isn't a shield...it's a heat sink.

Title: Re: PAC-MAN / LM1877 (Sound Chip) Can't find location 10-A ( help! )
Post by: BUCKETHEAD on November 14, 2006, 08:48:10 pm

Quote

That a question?  The shield isn't a shield...it's a heat sink.

No, not a question?

Just my arcade ignorance.

Now i know the real name of the Big Metal Thing!  ;)

Thanks,  Peale