Search found 4071 matches

by grantspain
Today, 9:45 am
Forum: Monitor Q&A
Topic: Toshiba 9929 Pure Flat Chassis
Replies: 1
Views: 368

Re: Toshiba 9929 Pure Flat Chassis

syncs ok to 15khz?
by grantspain
July 2nd, 2020, 3:24 pm
Forum: Monitor Q&A
Topic: Astro City shadow near the letters
Replies: 61
Views: 3595

Re: Astro City shadow near the letters

probably the wisest decision
by grantspain
July 1st, 2020, 12:59 pm
Forum: Monitor Q&A
Topic: Astro City shadow near the letters
Replies: 61
Views: 3595

Re: Astro City shadow near the letters

i reckon its a chassis fault
by grantspain
June 29th, 2020, 10:05 pm
Forum: Monitor Q&A
Topic: K7000 weird issues.
Replies: 9
Views: 1420

Re: K7000 weird issues.

replace the flyback in any case, very cheap to buy in usa
by grantspain
June 28th, 2020, 11:29 am
Forum: Monitor Q&A
Topic: K7000 weird issues.
Replies: 9
Views: 1420

Re: K7000 weird issues.

its going to be a corroded pad, i have seen that on the diode across the yoke header, the width coil and the big resistors- you have to desolder and clean the pad
by grantspain
June 22nd, 2020, 8:39 am
Forum: Monitor Q&A
Topic: Astro City shadow near the letters
Replies: 61
Views: 3595

Re: Astro City shadow near the letters

they are marked zd, make sure 10uf 250v cap is replaced
i am sure you are ok with a soldering iron
by grantspain
June 21st, 2020, 9:50 pm
Forum: Monitor Q&A
Topic: Astro City shadow near the letters
Replies: 61
Views: 3595

Re: Astro City shadow near the letters

why would a neck board burn out?
you need to get this to someone who knows how to fix it
by grantspain
June 14th, 2020, 7:49 pm
Forum: Monitor Q&A
Topic: Ms9 vertical hold
Replies: 9
Views: 1881

Re: Ms9 vertical hold

no but it will if its a fake part or you did not replace all the caps around it or clean off any cap leakage if it occured
by grantspain
June 14th, 2020, 12:23 am
Forum: Monitor Q&A
Topic: No Video on MS9-29S
Replies: 5
Views: 1300

Re: No Video on MS9-29S

thats just flux from solder so nothing to worry about
by grantspain
June 12th, 2020, 5:15 pm
Forum: Monitor Q&A
Topic: Power issue on Nanao MS8-29
Replies: 6
Views: 1222

Re: Power issue on Nanao MS8-29

there is a ntc in the primary section, they can fail as they get very hot- its possible that this is failing but the only way to prove this is to dummy load the chassis with a lamp on the horizontal output transistor check your crt socket solder joints, that is very common and will certainly cause t...
by grantspain
June 12th, 2020, 1:07 pm
Forum: Monitor Q&A
Topic: Power issue on Nanao MS8-29
Replies: 6
Views: 1222

Re: Power issue on Nanao MS8-29

there are not many issue with ms8-29 and start up, the vertical ic's have a habit of having fractured tracks which will cause chassis to not run or of course a bad solder joint
by grantspain
June 11th, 2020, 6:51 pm
Forum: Monitor Q&A
Topic: Power issue on Nanao MS8-29
Replies: 6
Views: 1222

Re: Power issue on Nanao MS8-29

what is the cap value at c908
by grantspain
June 10th, 2020, 4:57 pm
Forum: Monitor Q&A
Topic: No Video on MS9-29S
Replies: 5
Views: 1300

Re: No Video on MS9-29S

you need room to work and also you don't want to go breaking the neck of the crt, you must do what is safest
by grantspain
June 10th, 2020, 8:16 am
Forum: Monitor Q&A
Topic: No Video on MS9-29S
Replies: 5
Views: 1300

Re: No Video on MS9-29S

you will need to remove the chassis and check for and fractures or bad solder joints- in particular the pads of the vertical deflection ic
i expect you hear the monitor try to start and then shut down followed by a chirp noise around 30 secs later
by grantspain
June 4th, 2020, 1:39 pm
Forum: Monitor Q&A
Topic: Astro City shadow near the letters
Replies: 61
Views: 3595

Re: Astro City shadow near the letters

@grantspain he can't keep the new neckboard, if the new one works fine I will replace the zener diode on the old one and see if that works. So it's a 15v one, how many watts should it be? Should this one work? https://www.reichelt.nl/zener-diode-5-0w-15v-zd-5w-15v-p145340.html?&trstct=vrt_pdn&nbc=1...
by grantspain
June 4th, 2020, 12:43 pm
Forum: Monitor Q&A
Topic: Astro City shadow near the letters
Replies: 61
Views: 3595

Re: Astro City shadow near the letters

i have already told you the fault, the new neck card should resolve the fault
by grantspain
June 4th, 2020, 12:22 pm
Forum: Monitor Q&A
Topic: Astro City shadow near the letters
Replies: 61
Views: 3595

Re: Astro City shadow near the letters

pointless me answering any of these posts anymore
by grantspain
June 1st, 2020, 10:42 pm
Forum: Monitor Q&A
Topic: Astro City shadow near the letters
Replies: 61
Views: 3595

Re: Astro City shadow near the letters

unlikely, it could be anything causing that issue and if you do the wrong thing it will cause whoever finally repairs this a great deal of problems
by grantspain
June 1st, 2020, 10:01 pm
Forum: Monitor Q&A
Topic: Astro City shadow near the letters
Replies: 61
Views: 3595

Re: Astro City shadow near the letters

if you don't know what i mean then i suggest you send to repair
by grantspain
June 1st, 2020, 5:39 pm
Forum: Monitor Q&A
Topic: Astro City shadow near the letters
Replies: 61
Views: 3595

Re: Astro City shadow near the letters

it looks like classic issue when the 15v zener goes in the blue circuit to me
but i wonder have you tried a different game board?