New Life Games Tech Forums

Started by Joeylc -


U3000 Service Guide For 14”, 17” & 19” Video Monitors

u3000wg1
u3000wg2
u3000wg3

By Joeylc -


Wells Gardner Trouble shooting, block and pinouts.

19K6102-5835A
69x1251
D9200_TROUBLESHOOTING_IT
K7000Parts
K7200_(CLASSIC)_TROUBLESHOOTING_GUIDE
K7203_(REV_A)_TROUBLESHOOTING_GUIDE
K7203BLOCK
K7500_TROUBLESHOOTING_GUIDE

By Joeylc -


Wells Gardner Trouble shooting, block and pinouts.

U2000_-_K7400_update
U2000_TROUBLESHOOTING
U2000BLOCK

U3000_TROUBLESHOOTING_GUIDE

U3100_-2
U3100BLOCK

U5000BLOCK

By Joeylc -


Wells_Gardner_13k7201
Wells_Gardner_13k7203_19k7203_13in_and_19in
Wells_Gardner_13k7301

By Joeylc -


Wells_Gardner_14k3101-19k3102

By Joeylc -


Wells_Gardner_19k4600_19k4625_19k4675_19k4676_19k4677_19in
Wells_Gardner_19k4901_19k4906_19k4951_19k4956
Wells_Gardner_19k4914_Atari_TM-283_1st_Printing
Wells_Gardner_19k4915_Atari_TM-281_4th_Printing

Wells_Gardner_19k7201
Wells_Gardner_19V1001_19V1003_19in_and_23in_B&W
Wells_Gardner_19V2000_XY_B&W

By Joeylc -


Wells_Gardner_25k5515_Atari_TM-295
Wells_Gardner_25k7401-27k7401

By Joeylc -


Wells_Gardner_6100_Input_Protection_(M._Spaeth_Mar-12-02)
Wells_Gardner_6100_XY_Quadrascan_TM-183_2nd_Edition
Wells_Gardner_6100_XY_Quadrascan_TM-183_3rd_Edition

By Joeylc -


Wells_Gardner_K7000

By Joeylc -


Wells_Gardner_k7191-complete

By Joeylc -


Wells_Gardner_Quadrascan_Spare_Part_List

By Joeylc -


Wells_Gardner_WG-K4500_Schematic

By Joeylc -


Wells_Gardner_XY_CO-183-02

By Joeylc -


WG19-CCO_(Schematics_Only)

By Joeylc -


Wells-Gardner 9100

9100wg
9100wg4

By Joeylc -


Wells-Gardner 9200

9200wg
9200wg4
9200wg5

By Joeylc -


Wells-Gardner 9300

9300WG

By Jack Valadez -


any service manuals on the WG LCD's

By worm -


I have a WG 7201 monitor that is dead no volts any where had a few caps that was bad replaced them but nothing.
Where do I go from there,where do I look.

By worm -


Have a 7302 that I can't get the color right change neck board still no good color can I grt any help.

By channelmaniac -


Wells K8000 schematic

By channelmaniac -


I've got a 25K7191 monitor which has vertical position issues... I've capped it... and am about to change out Q9... The resistors around that transistor appear to be fine...

There's about a 2" gap on the bottom of the screen that I can't make go away.

Any other ideas?

By Cactusjack -


You are not really clear if Vertical Position works or not.  But I think I have seen what you are describing.

A common issue on the older Wells 7000 series is that little 50/60Hz pot just behind Horizontal Hold.  It will allow you to adjust the vertical in a few different ways.  It seems as the monitors aged, it works to "fix" the vertical foldback which appears at the top or bottom of the tube.  It also works as a Vertical Linearity control.  Adjust it for no foldback and so the distance between the raster lines are equal at the top and bottom of the screen (Vert Linearity).

CJ

By channelmaniac -


Well, it seems R83 is missing... and VR3 is a whopping 200 ohms...

The chassis says K7191, but it doesn't have the external video controls and more resembles the K7000 schematic...

I put the 10k one in and now I have no video... I need to swap it back... or take the board all the way out & try to undo the mods that someone put in place. It seems like they cut some resistors out and tack soldered one on the backside of the board.

This chassis also has some kind of external block connected to the HV lead. Not sure what it is and I can't find it referenced in any of the schematics.

The problem I had was that the video could not be centered vertically on the screen.

RJ

By Cactusjack -


That expoxy block is actually a High Voltage Capacitor used to maintain high voltage on a Screen when it goes all white (like on a gun game which flashes the whole picture White).

Not to insult you, but are you using the right polarity Sync?  The sync on the 6 pin connector is positive, the 3 pin connector, negative.  Most Jamma boards put out composite Negative which should go to the last pin of the 10 on the 3 pin.  Some monitors will sync to the wrong polarity but you will have your screen way off from adjustable zones.

I don't have a schematic here at home to look up your listed components.  Will have to wait until Monday.

CJ

By channelmaniac -


When I turn the game off, I see the screen shrink down... It's either the board died and isn't putting out video or the video position is such that the screen is on the side of the tube and not on the front of it... I'm going to put the board back to the hacked up way it was & see if I can get the video back like it was. It was on the screen, just with a 2" gap at the bottom of the screen...

Raymond

By channelmaniac -


OK... it's fixed... broken trace... I replaced the 200ohm control with a 500 ohm and have enough now to adjust the screen down to where I want it. Looks good now!

By DJH -


Does anyone have a flow Chart for a D9200 27"?

Thanks!

By Ken Layton -


Here's a good site on the 25k7191 series:

www.jstookey.com/arcade/WG_25k7191/

By channelmaniac -


Thanks!

By DJH -


Does any one have any info on the 17k-3005 monitor in terms of trouble shooting?   It has a P829 power board.   Has anyone seen a cap kit for it?

Monitor does not power up right away, can take 1-2 hours before giving a picture.  Also makes a clicking noise like a relay etc.

By belbenchtech -


There are six electrolytic capacitors on one side of the large heatsink...
   C107   a 100uF, 50V.....P/N 606774.....$0.25ea
   C108   a 10uF, 50V.......P/N 607849.....$0.20ea
   C115   a 100uF, 200V...P/N 609916.....$1.45ea
   C117   a 22uF, 160V.....P/N 609828.....$0.44ea
   C118   a 1000uF, 35V...P/N 158377.....$0.49ea
   C120   a 100uF, 50V.....P/N 606774.....$0.25ea

The part numbers are from a Jameco Electronics catalog...they are current prices...change these capacitors...as stated previously, any (and every) time I've had a W-G monitor "click" when turned on it has been the above capacitors that had become "flakey"...

Good luck,
Mike><>

By DJH -


Perfect and thanks!

Thanks :71-


If you have general tips on repairing these monitors or have schematics or repair notes to upload, you're in the right place. :71-

StatFreak  :31-
 :nlg- Global Moderator



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