Search found 4118 matches

by grantspain
May 3rd, 2020, 8:36 am
Forum: Monitor Q&A
Topic: Ms8 chassis and ms9 Tube compatible? And vice versa
Replies: 23
Views: 2166

Re: Ms8 chassis and ms9 Tube compatible? And vice versa

they are compatible to a degree, I would certainly use a ms9-29 to upgrade a ms8-29 Difference will be the yoke connector, the ms8-29 uses a 4 pin whereas the ms9-29 has 2x 2pin- one of which for the vertical is a small gauge pin The manual switching degauss connector on the chassis will also be dif...
by grantspain
May 2nd, 2020, 7:45 am
Forum: Monitor Q&A
Topic: Small blue PCB info request on Toshiba PD1843 board​
Replies: 6
Views: 780

Re: Small blue PCB info request on Toshiba PD1843 board​

the flybacks are the usual cause of flashover and will most likely need replacing, the problem is getting one
by grantspain
April 30th, 2020, 6:48 pm
Forum: Monitor Q&A
Topic: Sanwa 29e31s-b No Picture-total black
Replies: 72
Views: 7413

Re: Sanwa 29e31s-b No Picture-total black

get the one from tecknoservice, costs a little more but known to work
by grantspain
April 30th, 2020, 5:35 pm
Forum: Monitor Q&A
Topic: Sanwa 29e31s-b No Picture-total black
Replies: 72
Views: 7413

Re: Sanwa 29e31s-b No Picture-total black

efiter no longer stock those flybacks
by grantspain
April 24th, 2020, 9:28 pm
Forum: Monitor Q&A
Topic: Ms9 vertical hold
Replies: 9
Views: 2597

Re: Ms9 vertical hold

Ok, i have meassured B+ and adjusted it to 75.1 so I guess that should be fine, although that didn't fix the screen from rolling, I have checked caps on vertical section and all seems to be fine, I've read here that LA7853 could be the culprit, I will try to change that and will post results here. ...
by grantspain
April 14th, 2020, 4:28 am
Forum: Monitor Q&A
Topic: MS9-29xx: Part Number for Q901?
Replies: 6
Views: 655

Re: MS9-29xx: Part Number for Q901?

yeah its just a rubber insulation sleeve
by grantspain
April 14th, 2020, 2:31 am
Forum: Monitor Q&A
Topic: MS9-29xx: Part Number for Q901?
Replies: 6
Views: 655

Re: MS9-29xx: Part Number for Q901?

show me a photo but if its what i think it is then yes is has a rubber sleeve fitted over it
by grantspain
April 13th, 2020, 11:45 pm
Forum: Monitor Q&A
Topic: MS9-29xx: Part Number for Q901?
Replies: 6
Views: 655

Re: MS9-29xx: Part Number for Q901?

2sk1531
by grantspain
April 12th, 2020, 10:40 am
Forum: Monitor Q&A
Topic: Nanao MS-2933 Tube Compatibility?
Replies: 14
Views: 2090

Re: Nanao MS-2933 Tube Compatibility?

looks like it r517, schem has it as 3r3 1w- replace with 1r2 1w
try to use metal oxide type and confirm the value of r517 before proceeding
by grantspain
April 10th, 2020, 10:29 pm
Forum: Monitor Q&A
Topic: Nanao MS9-29 brightness issue
Replies: 4
Views: 780

Re: Nanao MS9-29 brightness issue

caps are a good start, particular cap that causes this is the 10uf 250v on the neck card and also another 10uf 250v on the video b+
by grantspain
April 9th, 2020, 4:54 pm
Forum: Monitor Q&A
Topic: Nanao MS9-29 (05A00585D1) dead
Replies: 24
Views: 2421

Re: Nanao MS9-29 (05A00585D1) dead

have you tested the HOT
by grantspain
April 5th, 2020, 1:23 pm
Forum: Monitor Q&A
Topic: Toei A292 Half Screen issue
Replies: 6
Views: 925

Re: Toei A292 Half Screen issue

carry on with replacing caps and if no change replace the ic, if i remember correctly that ic does an awful lot of work
by grantspain
April 5th, 2020, 9:58 am
Forum: Monitor Q&A
Topic: Toei A292 Half Screen issue
Replies: 6
Views: 925

Re: Toei A292 Half Screen issue

did you have the problem before you changed any caps?
by grantspain
April 2nd, 2020, 11:33 pm
Forum: Game Hardware Q&A
Topic: Silent Hill Arcade Issue
Replies: 6
Views: 1373

Re: Silent Hill Arcade Issue

have you checked the voltages from the power supply
by grantspain
April 2nd, 2020, 12:21 pm
Forum: Cabinet Q&A
Topic: MS8-18B issue
Replies: 2
Views: 423

Re: MS8-18B issue

put it back to original and test, then do one pot at a time
by grantspain
April 1st, 2020, 5:22 am
Forum: Monitor Q&A
Topic: Troubleshooting a monitor for Street Fighter II
Replies: 2
Views: 470

Re: Troubleshooting a monitor for Street Fighter II

replace the broken pots, the value are normally marked on each pot or you can cross reference the schematic
by grantspain
March 31st, 2020, 10:05 pm
Forum: Monitor Q&A
Topic: Astro City MS9, red lines on dark background
Replies: 9
Views: 982

Re: Astro City MS9, red lines on dark background

you can do as said and up both the blue and green cut offs and adjust brightness if you have an overly red screen with no video signal attached then i would suggest you have a leaky diode or transistor in the red drive circuit, if not then the game board maybe at fault- if it is a drive issue then t...
by grantspain
March 29th, 2020, 10:20 pm
Forum: Monitor Q&A
Topic: Astro City MS9, red lines on dark background
Replies: 9
Views: 982

Re: Astro City MS9, red lines on dark background

red cut off is what you need-its on the main chassis
you may have a fault in the red drive circuit though
by grantspain
March 29th, 2020, 4:02 pm
Forum: Monitor Q&A
Topic: Th901 broken on ms8-26A
Replies: 18
Views: 1435

Re: Th901 broken on ms8-26A

th901 then