Board received back from Ray and now working (just a resistor to swap out on the sound board due to distorted buzzy sound)
Thanks everyone for all your help..another original donkey kong survives!
Its on it way Home now after being fixed by Ray..issues below (so it was a mixture of monitor and pcb issues)..
Green stuck on - broken leg on Q10
No sound - broken leg on Q3
Tiles wrong and duplicated - bad LS157 on video PCB at 2S
No digital sounds - bad 8035 sound CPU
Replaced all original...
Thank you - Already sent it off to Starbase Alpha...... would have been happy to do sockets etc...just if I had bad eproms I dont have the tools to resolve.....just a waiting game now!
An update to assist others...
the monitor is now nearly fully working after the below actions:
Full wash and clean of chassis
Full cap kit - several blown and leaking
Full cap kit and transistors on audio board
Replaced pots on the neck board - two were difficult to turn
Replaced degauss...
I have now removed the chassis and the flyback has the black gunk on top...I guess I need to replace this also!.....and the sound board with gunk coming from caps may explain why I have no sound (just clicks)
After tweaking you can see the game running more…i have ordered cap kits for monitor, power and pcb..and will make a start with that. Flyback fully turned down as is the other brightness pot…
Thanks- the game is defiantly running..hard to see in picture…coin up and see kong going up ladder etc.
Ill start with cap kits ..i have done on several other monitors