The electronic DIYers on this forum are a little black cloud over their heads huh?
come to think of it every topic on this board needs a ray of PMA
perhaps it comes from the leader grumpy Larry but in any case much like
an Italian American family I know you all are looking out for me and mean well and tape op is still one of the best mags out about this stuff so.......
Let me first say that I do have some of the money puzzle you presented sussed
the manual I was able to download for free as a PDF online so that illiminates that cost and search in the puzzle. According to techs over on the EEV blog forum the 4 parts shown that are damaged will be well under 50 bucks
Here is what the verdict was over there
input voltage regulators are the 3 fried parts pictured
and the chip is the boards main Ram
those parts are cheap as far as the opinions on that blog
It does appear that the other chips like the EEPROM have survived but the parts I am looking for now that might be fried are the pads like the lad here says
and maybe the 3v3 was effected .....
I do not think I will call Roland I have in the past and they are purpponents of the new method of "why fix old when you can BUY BUY BUY! BUY OUR NEW PRODUCT ! IT WORKS SHITTIER THAN THE LAST MODEL BUT COSTS MORE ! BUY ITS GOOD FOR YOU! IT WILL MAKE YOU AS FAMOUS AS JAY Z BUY DAMN YOU!
Anyhow ....
If it does turn out that a new board is the solution yeah I will buy a used one
womp womp
But know that I bought this unit to challenge myself and learn
so the idea of desoldering surface mount stuff yes I agree with you seems fatal however nothing is imposible with PMA right Larry Jr ?
A little flux
a decent Iron (which I own)
and a really good how to video
worth a shot right ?
Only thing that can deter me is if
I reach a part that will bring my costs over 100 bucks
so far a RAM chip that I can probably find in a junked DVD recorder
and 3 voltage regulators and perhaps another component I doubt will cost
exorbitant amount of money .........
However frying the board in the process of learning
Yeah I dig you
and that is realistic however
I had a shop teacher in 7th grade that self proclaimed himself
"A Realist" before every class and needless to say no one but me
who chose to ignore his vibe was excited about learning about
California job cases and ancient stuff like that
Mad respect and love for the Italian American style love yall pump out
it does have a pinch of I know better than you hipster salt though but hey
What braciole does not need a little spice right
I will keep yall posted
PS for reference sake and other googling folks in the same repair situation as me
here is the link to get the service manual
http://elektrotanya.com/roland_sp404.pdf/download.html