| Electronics > Repair |
| ADVANTEST R9211B |
| << < (7/39) > >> |
| stfjohn:
The manual arrived. Unfortunately it contains no diagrams except block diagrams. This is the only one of any interest, in my opinion. |
| m k:
So you have few more or even more difficult routes. Maybe easiest is to get a 68k hardware monitor and check how program flows. One other could be a two channel timer or something like that to check how chip selects go, after every switch on you can guess what CS was later and so on. Reverse engineering the whole software is of course also a route. Block diagrams can be close to schematics, but there must be plenty and detailed ones. If the above block diagram is a guide you can assume that the program bus is operational. It also means that you can verify initialization of all of those upper side chips. |
| stfjohn:
Forgive my ignorance on this matter: where can I find a 68K hardware monitor and how should I use it to check the program flow? |
| m k:
Maybe it is no more. Back in the day had a thing where special socket was put in between the CPU and its original socket. The special socket was hooked to the monitoring machine and it did what was wanted or needed to figure out what was happening. |
| stfjohn:
How can I verify initialization of all of upper side chip? |
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