Hi James,
Lots of clever things in these instruments.
One I found very useful in fault finding is the TEST Button. That opens a screen to select the ROM part of the memory where the test programs reside.
There are the choices of? AF-Diag? ? RF-diag??? MS-diag.? Once you have selected which type of diagnostic test you wish the run, use the control knob to select, Cursor Up / Down, and Select, to select the test required. Then move the cursor to Run, which actually loads the little program in the unit, from that you cursor down to select which test to run. Push the control knob to make the test start.
If you select the "All test", it will run all the list one after the other until it gets to the end, where you should see "NO Failures". Do each test either one at a time or step by step until you get no failures. Carefully read the screen and follow any setup instructions like connecting the Audio out at the back to the Audio in at the front, etc.
You cannot destroy any data, so don't be worried about that. Play with these tests and try each choice; some allow you to do step by step and to pause on error. This is great for locating the section that has a problem.
Make sure you exit the tests and return to main screen before you turn off the power. I make notes so if I get interrupted (by the missus or the phone), I can get back to where I left off.
I think the Spec Analyzer is one of the plug in modules at the back near the power supply. Check if you have any OOL leds on (Out of Lock) that are in those modules. That could be a clue as to where the problem is.?
Be very careful in plugging in the boards and modules. It can be easy to bend the pins on the mother board.
Have fun James.
Bill M.
