Monitor Service/Parts in the Harrisburg PA Area

[spidey-man]

Hi All,

[Ken Layton]

Try this:

Penn-Ray International, LLC
6850 Hibbs Lane
Levittown, Pa. 19057
Phone: 1-800-945-0515
Fax: (215) 945-1030
URL: www.penn-ray.com

Also, look in your local Yellow Pages under the heading Amusement Devices for a local game operator/distributor that could service your monitor.

[Jess--]

before you go down the route of paying to get your monitor looked at try switching the red / green input leads to the monitor

if you suddenly get red but no green then its a fault in the input wiring or on the game board, if you still have no red the it is a fault on the monitor

[spidey-man]

Ken,

    Thanks for responding.  I originally thought there was only one dealer in my area, but by checking under 'Amusement Devices', I was able to find a couple more.  Thanks.

Jess,

    That sounds like a really great idea.  Unfortunately, I'm not quite sure what you mean by the input leads.  (As I said this is very new to me).  Assume I'm a complete novice (which I am), what would these leads be connected to?  Would they be soldered on or would they be easy to detach?  If you could help me, I would be very thankful.  PM me if you have some time to help a newbie.

Thank you very much!

[Jess--]

you should find 2 lots of wiring going to your monitor (3 if the monitor has seperate controls)

1 lot will go to your power supply
the second lot will go to your game board, these are the input wires and will carry video ground, red, green, blue, horizontal sync and vertical sync (possibly multiple grounds)

I will have a quick look and see if I can find which connections are which on the plug at the monitor end (it will be plugged not soldered, which means the hardest part is releasing the 2 pins to be swapped from the plug)

did a little hunting around and from what I am reading the wiring that comes from your game board to the monitor may split and go to 2 plugs (1 for video signals, 1 for sync signals) or only go to a single plug.

in either case the wires to swap will go to pins 1 and 2 on the 6 pin plug

Video input connector pinout:

1 - Video red
2 - Video green
3 - Video blue
4 - Ground
5 - Vertical positive sync
6 - Horizontal positive sync

Sync connector pinout:

1 - Ground
2 - Vertical negative sync
3 - Horizontal negative sync

(Information found via a post elsewhere from our helpful Ken Layton http://www.ionpool.net/arcade/tech/19K4600_pinout.txt)

[spidey-man]

Well, I was able to swap the wires like Jess suggested and I did not see any RED.  In fact I saw a lot of nothing.  It looked a little like an x-ray.  It took some sweat (and a bunch of cursing myself to get it back to the way it was before.  Good picture with no RED.

Is there a secret to connecting the wires into the plug?

Assuming I did things right, does that mean the monitor is beyond repair or could it still be just a transister or cap?

Again thanks for all of the help.

[Ken Layton]

There are individual color pre-amplifier transistors on the video interface board. There are 3 color output transistors on the neckboard too. Frequently the three large wattage resistors tied to the color output transistors on the neckboard get hot enough to cause the solder joints to go bad thus killing a color. Sometimes one of those color output transistors on the neckboard go bad (they get HOT!).

Lately, I have seen an increase of the color preamp transistors going bad on the video interface board. Remember that the 4600 series is well known for many bad solder joints especially on the main board at the connector header pins going to the two daughter cards. Same goes for those two daughters cards.

[Karetaker]

For a 19" it would almost be worth replacing it. I picked one up at Happ for $150 on sale. I'm sure others have similar deals. If not I can fix it for you if you want to bring it by. Let me know and I can PM you with my number and address. It sounds like you would be looking at $40 plus parts. Or I can take your monitor as a trade in and replace it with a Wells Gardner k7000 for $40 with a 30 day warranty. Let me know if you're interested.