Search found 3933 matches

by grantspain
January 27th, 2019, 11:47 am
Forum: Monitor Q&A
Topic: Toshiba A68KJU96X (9E) tube with Nanao MS9 chassis
Replies: 7
Views: 436

Re: Toshiba A68KJU96X (9E) tube with Nanao MS9 chassis

very difficult to find them now as they have not been manufactured for some time, only real solution is a 15 to 31 converter although not perfect
by grantspain
January 26th, 2019, 10:55 pm
Forum: Monitor Q&A
Topic: Toshiba A68KJU96X (9E) tube with Nanao MS9 chassis
Replies: 7
Views: 436

Re: Toshiba A68KJU96X (9E) tube with Nanao MS9 chassis

you need to read the horizontal inductance of the deflection yoke- with an inductance meter, the yoke on ms2932 will be around 0.195mh and the yoke on ms9-29 will be around 0.300mh
chassis that match ms2930,2931,2932,2933,2934 are weiya 3129b or rodotron 666b1-29
by grantspain
January 25th, 2019, 10:53 pm
Forum: Monitor Q&A
Topic: Is the Makvision chassis compatible with Blast City Nanao Tube?
Replies: 43
Views: 2261

Re: Is the Makvision chassis compatible with Blast City Nanao Tube?

all the cables you need are on the old wiring of the chassis, the 2 pin ac power should be same unless you have a 3 pin weiya. the new chassis will have a vga cable with an adapter board- this adapter board has the same 6 pin connector as the ms2931 low res connector- in other words you can just rem...
by grantspain
January 25th, 2019, 9:37 pm
Forum: Monitor Q&A
Topic: PTC rated at 25ohm, coils is 27ohm : is it an issue?
Replies: 2
Views: 178

Re: PTC rated at 25ohm, coils is 27ohm : is it an issue?

not going to make any difference
by grantspain
January 24th, 2019, 4:23 pm
Forum: SuperGun Q&A
Topic: System 256 and Boardmaster Supergun
Replies: 30
Views: 1353

Re: System 256 and Boardmaster Supergun

i am not sure how picky 256 are with dvd drives, the 246 were really picky- samsung, lg, and toshiba gave good results but depended the model- obviously it has to be ide
the fan not running is a real concern, that needs to be resolved immediately
by grantspain
January 24th, 2019, 2:07 pm
Forum: SuperGun Q&A
Topic: System 256 and Boardmaster Supergun
Replies: 30
Views: 1353

Re: System 256 and Boardmaster Supergun

you need a minimum of 4.90v for the game to run but thats is on the filter board of the system 256 and not at the io board or power supply, it should be about 5.05v ideally

another issue may be the rom drive
by grantspain
January 23rd, 2019, 8:32 am
Forum: SuperGun Q&A
Topic: System 256 and Boardmaster Supergun
Replies: 30
Views: 1353

Re: System 256 and Boardmaster Supergun

you will need at least 5v at the system 246 power input header
by grantspain
January 18th, 2019, 8:19 am
Forum: Monitor Q&A
Topic: Monitor replacement help on blast city + windy2
Replies: 8
Views: 661

Re: Monitor replacement help on blast city + windy2

you need an inductance meter- it looks like a multimeter
https://www.ebay.com/itm/A6243L-Digital ... rk:23:pf:0
by grantspain
January 17th, 2019, 8:13 am
Forum: Monitor Q&A
Topic: Monitor replacement help on blast city + windy2
Replies: 8
Views: 661

Re: Monitor replacement help on blast city + windy2

8bitforlife wrote:
January 17th, 2019, 3:19 am
im thinking those numbers are for ohm and not what number you needed to know if a 2931 will work,
thats the impedance readings, i need the inductance readings
by grantspain
January 11th, 2019, 6:19 am
Forum: Monitor Q&A
Topic: Tube and Chassis cleaning
Replies: 11
Views: 728

Re: Tube and Chassis cleaning

water inside coils and caps is a serious concern, when i wash chassis i do it before i put new caps in and i remove and open coil/ transformer and then make sure the chassis is bone dry
by grantspain
January 4th, 2019, 11:24 pm
Forum: Monitor Q&A
Topic: Monitor replacement help on blast city + windy2
Replies: 8
Views: 661

Re: Monitor replacement help on blast city + windy2

the sanwa will be a 29es31s, you can use a weiya 3129a or rodotron 666a on these tubes what is the chassis that is marked A68KSM696X 31khz only He'll have to go down to storage to see. My friend said some op had written 31z only on it at the top. Can I use my nanao 2931 on A68KSM696X? depends on th...
by grantspain
January 4th, 2019, 9:21 am
Forum: Monitor Q&A
Topic: Monitor replacement help on blast city + windy2
Replies: 8
Views: 661

Re: Monitor replacement help on blast city + windy2

the sanwa will be a 29es31s, you can use a weiya 3129a or rodotron 666a on these tubes
what is the chassis that is marked A68KSM696X 31khz only
by grantspain
December 30th, 2018, 10:39 pm
Forum: Monitor Q&A
Topic: Toshiba LR27012 Zapping - I want to live again!
Replies: 5
Views: 386

Re: Toshiba LR27012 Zapping - I want to live again!

means exactly that, the ht is directly connecting to an earth point/ metal work- would happen if the ht lead has come out of the anode or the flyback is cracked and is arcing to to the frame somewhere
by grantspain
December 30th, 2018, 7:06 pm
Forum: Monitor Q&A
Topic: Toshiba LR27012 Zapping - I want to live again!
Replies: 5
Views: 386

Re: Toshiba LR27012 Zapping - I want to live again!

that is no normal HT tracking issue, that is either the tube fractured or direct HT to earth
by grantspain
December 30th, 2018, 12:21 pm
Forum: Monitor Q&A
Topic: Toshiba LR27012 Zapping - I want to live again!
Replies: 5
Views: 386

Re: Toshiba LR27012 Zapping - I want to live again!

you need to remove the metal plate and see where the arcing is coming from, perhaps the anode cap has fallen off
by grantspain
December 29th, 2018, 11:19 am
Forum: Monitor Q&A
Topic: MS 2930-S replacement chassis
Replies: 2
Views: 242

Re: MS 2930-S replacement chassis

df is dual focus/ dyna focus, it means there are 2 focus pins on the neck so will not fit 2930 tube- also the yoke impedance is different
the correct chassis is weiya 3129b or a rodotron 666b1-29- the 15khz will have more pronounced scan lines than the original chassis
by grantspain
December 26th, 2018, 3:42 pm
Forum: Monitor Q&A
Topic: Is the Makvision chassis compatible with Blast City Nanao Tube?
Replies: 43
Views: 2261

Re: Is the Makvision chassis compatible with Blast City Nanao Tube?

Darklightjg1 wrote:
December 26th, 2018, 1:08 pm
Is the Wei-ya C3129DF chassis not compatible? I'm having a hard time finding anything that is specifically 3129b.
no that is a dual focus chassis for use on 0.300mh yokes
by grantspain
December 26th, 2018, 9:13 am
Forum: Monitor Q&A
Topic: 29Z21 compatibility
Replies: 2
Views: 280

Re: 29Z21 compatibility

yes works perfectly, you need to make an adapter for the deflection yoke as the sanwa is 4 pin and the ms9 is 2 pin + 2 pin and the vertical header is a smaller gauge
the rgb and manual degauss connector are also different
by grantspain
December 22nd, 2018, 8:45 am
Forum: Monitor Q&A
Topic: Is the Makvision chassis compatible with Blast City Nanao Tube?
Replies: 43
Views: 2261

Re: Is the Makvision chassis compatible with Blast City Nanao Tube?

2930 i have a much better success rate, only ever had one 2933 to repair so can't say