Nanao MS8-29FSG Chassis (Arcade Monitor) - Replace capacitors and repair

This video is an overview of how to repair a Nanao MS8-29FSG Chassis with a Toshiba A68KJU96X 29" CRT tube. This video attempts to cover:
- Cleaning the chassis
- Removing and replacing all electrolytic capacitors
- Repairing burnt pad/traces
Chapters:
0:00 Introduction
0:45 Cleaning and removing dust from the arcade monitor
1:44 Light dust removed
2:15 Checking the deflection yoke measurements
6:44 Explaining my new repair work settings
8:01 CRT tube emission
10:47 First look at the chassis prior to repair
13:19 Chassis removed from the plastic tray
13:51 First look at the solder joints on the underside of PCB
14:46 Removal of the neck board
17:13 Inspecting the solder joints on the neck board
21:52 Inspecting the MS8 chassis closer.
22:58 Closer inspection of a heat soaked part and broken solder joints
24:16 Inventory of Capacitors (in-depth spreadsheet)
27:40 Day 2 - part way through the clean and desoldering of caps
31:02 Q532 Transistor (2SC2688) removal, and repair work on pads
34:33 Showing the traces and pads of Q532 prepped for repair
35:01 Cleaning the area post soldering
35:58 Montage of pictures showing the cleaning process
43:10 Final 2 pictures of cleaned and re-capped chassis
44:25 First power on and test - did it work?
44:55 Day 3 - Looking at why the picture was unstable
47:44 Looking closer at the TPG (Test Pattern Generator) - 2 silly issues
48:55 Trying the monitor after correcting the 2 issues prior - Showing working
50:54 results post degaussing - great colours
52:27 Summary, thanks and recommending wiki links
Constructive feedback is welcomed in the comments. Thank you for taking the time to view.
Like what you see? Say thanks by buying me a drink! www.buymeacoffee.com/retrobri...
Useful links:
www.ukvac.com/forum/threads/m...
wiki.arcadeotaku.com/w/Nanao_...
wiki.arcadeotaku.com/w/Nanao_...
Tools:
Wire strippers:
www.amazon.co.uk/gp/product/B...
Soldering Iron:
amzn.to/3rxK5eO
Desoldering station:
amzn.to/3i5XQy6
Capacitor tester:
amzn.to/372aAQ8
ESD Brushes:
amzn.to/3y57TZO
Microscope:
www.banggood.com/MUSTOOL-G120...
Picks:
amzn.to/2TBgMLP
Sidecutters:
amzn.to/2URHU9P
Parts:
Capacitors purchased from Mouser - sadly I cannot share the project list like I first thought, I will submit a table to the Wiki in due course.
Alternative cap kit that 'might' work:
www.arcadepartsandrepair.com/...
Cleaning products and consumables:
Flux
amzn.to/3i0zypg
Solder:
uk.farnell.com/multicore-loct...
Gloves:
www.screwfix.com/p/site-kf440...
IPA:
amzn.to/3kXGHsq
Cotton buds:
amzn.to/3rEhSmr
De-Oxit:
amzn.to/3l0p3nJ

[@TheRetroBristolian]

I've just realised sadly the audio recorded all in mono on the left audio channel, I've changed the microphone setting so it will be correct for the next video

[@splugereport]

Sorry to hear about your grandma and thanks for the video!

[@TheRetroBristolian]

Thanks for the comment that's really kind, we are weeks away from the 1-year anniversary of her passing, it's been a long LONG year, I often think what she would make of all the problems we've been facing in the last 12 months, I think she'd of been so disappointed that things she thought were in place and safe were quite the opposite. I've almost finished editing my video about my MS9-29 monitor but I've stalled for a few weeks as sorting a lot of other things out. Take care.

[@Piy376]

❤❤❤❤❤❤

[@forestdrift]

A great video and guide... keep up the good work!

[@TheRetroBristolian]

Glad you enjoyed it!

[@DaveRepairs]

Well done - make sure ur following Mike amateur arcade repair channel. You sound local, I am one of Timewarp's in Bridgwater engineers so pleased to see u on here

[@TheRetroBristolian]

I tried to reply last night but my internet was playing up. I'm a subscriber to Mike's channel - who isn't! essential viewing for sure!
I've been down to Timewarp many times and am in conversations with Luke about various bits and trying to collaborate and help each other, we bumped into each other at the Play Lesuire sell recently - Did you go to that also? either way, good to meet local like minded people and I'm sure we'll compare notes in the future!

[@DaveRepairs]

@@TheRetroBristolian ha nice yes that’s us and I originally was a Play Bideford engineer which became Play Leisure. So we may had a chat at closing down days , I did load the car up with monitors !

[@mukurop1]

Hi my ms8 29 fsg just shut off in one second, basically basically go in protection state wirhout displayng any image, the psu section is tested and ok, all caps replaced but still same issue

[@TheRetroBristolian]

Thanks for dropping a comment, I wonder do you have a multimeter to tweak and adjust the shut down pot perhaps?

[@oscaregame5070]

Hi, great video, i have this crt monitor in my naomi arcade, i habe a problem, sometimes turn on and work perfectly, but another times sound turn on, but the monitor don't show picture, do you know if the problem is easy to repair?

[@TheRetroBristolian]

if it's sometimes fine and sometimes not it could be temperature related or a failing component like the capacitors. with temperature changes either environmental or due to it running a cracked (dry joint) could expand or contract just enough to touch and restore functionality. I would say you should safely discharge the tube (so there is no voltage at the anode), remove the chassis and check the underside for a dry joint, with a strong light and a magnifying glass you should see if there are any cracks, also check for bulging or leaking caps. these chassis will all have high hours on them now and have been through a lot of heat cycles, also they'll be about 20+ years old so the capacitors are past their recommended and usable lifespan. Thanks for watching.

[@oscaregame5070]

@@TheRetroBristolian oh thank you for the fast answer, I'll check the caps, I will keep you informed, thanks!!!