Working on some of these neotec chassis for a friend. Both of them work with small issues (vertical jittering, missing colors etc).
He has two variants which we can't find info on anywhere. Both of the ones he has are labeled 03V-0 on the main PCB. Chassis #1 has a significantly different neck board labeled "NT-2002" and has
no pincushion daughterboard. Pincushion still works. The remote board also has different pots for contrast, V position, and pincushion. Chassis #2 has a regular Full Family neck board and remote board, and has the pincushion daughterboard. The only other info I could find was this thread:
https://forums.arcade-museum.com/threads/neotec-2701-9e-03v-0.378083/
These are definitely some sort of revision to the Full Family design. Friend did a recap on them, C502 came out as a 2.2uf but on a Full Family it's a 4.7uf. He put the 4.7uf in erroneously and the brightness was wrong, so I put the 2.2uf back in and that issue was fixed.
The manual and all info online state that B+ should be at 100v, and this is correct on his other monitors which say Full Family on the main board. Both of these with the 03V-0 main boards have a B+ adjustment range between 120v-150v. The other secondary voltages are all correct. Looking at the SMPS section, the components are all identical except for the transformer which is appended "-A" on the Full Family version. I haven't pulled them and measured the windings to see if they're actually different.
So my question: does the higher B+ for this 03V-0 variant seem correct?