Re: Opto resistor replacement?

Thanks Mark. But since my post I've determined that the problem is on the
receiver side of the opto's. So it could be several things on that board.
I'm just gonna look for a replacement board. If anyone has one please let
me know.

Thanks,

--
John P. Dayhuff
Battle Creek, MI.
(269) 979-3836

Still looking for:
E.M. Charlie Angels pinball machine,$100 finders fee.....


"Mark Clayton" <spamuser1604@xxxxxxx> wrote in message
news:477f1d08$0$5152$4c368faf@xxxxxxxxxxxxxxxxx
John:

If you can't find any 180 Ohm resistors, you could use
two 390 Ohm in parallel or two 100 Ohm in series and
get close enough for this circuit.

-Mark
--
http://pinballpal.com
"John P. Dayhuff" <pinhead67@xxxxxxxxxxxxx> wrote in message
news:veffj.3022$6%.2267@xxxxxxxxxxxxxxxxxxxxxxx
What would be a more common substitute that I could use?

Thanks again,

--
John P. Dayhuff
Battle Creek, MI.
(269) 979-3836

Still looking for:
E.M. Charlie Angels pinball machine,$100 finders fee.....


<murphyjjr@xxxxxxxxxxx> wrote in message

news:2dfa3954-a269-4ff5-85e0-c3209e5477f5@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
On Jan 2, 11:06 pm, murphy...@xxxxxxxxxxx wrote:
On Jan 2, 10:49 pm, "John P. Dayhuff" <pinhea...@xxxxxxxxxxxxx>
wrote:



I'm working on a Sega game that has what I think is a bad Resistor
on
the
opto trough board. This is the tiny board that only has one LED on
it.
I've replaced the entire board with a known working one and my
problem
goes
away. So then I've also replaced just the LED and I still have
the
problem, so the only thing left is the resistor which is VERY tiny
and
labeled " 181 ". Is there some sorta replacement that I can sub in
its
place since I dont have a clue as to where I can get a replacement
for
it.
Anyone atleast know the value or have any ideas of what to replace
it
with?

Thanks,

--
John P. Dayhuff
Battle Creek, MI.
(269) 979-3836

Still looking for:
E.M. Charlie Angels pinball machine,$100 finders fee.....

The first two digits represent the two digits in the answer. The
third
digit represents the number of zero's you must place after the two
digits. The answer will be OHMS. For example: 334 is written 33 0
000.
This is written 330,000 ohms. The comma can be replaced by the letter
"k". The final answer is: 330k.
222 = 22 00 = 2,200 = 2k2
473 = 47 000 = 47,000 = 47k
105 = 10 00000 = 1,000,000 = 1M = one million ohms
There is one trick you have to remember. Resistances less than 100
ohms are written: 100, 220, 470. These are 10 and NO zero's = 10 ohms
= 10R
or 22 and no zero's = 22R or 47 and no zero's = 47R. Sometimes the
resistor is marked: 10, 22 and 47 to prevent a mistake.

Opps forgot looks like 180ohm's just use a regular resistor in its
place.







.

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