It has all the information you will need to fix it. The main circuit diagram is only A4 but being a PDF, you can print it to any size - I did it on two sheets of A3 and it didnt lose any detail - just made it readable when pinned up above the bench. I've found the fault, just need to buy some obscure bits to get it going again!
I cant fault the process, I paid for the manual in the morning and it was ready to download by lunch time.
Description
Output Enable output to external ROM Chip Enable output to external ROM OUTPUT OPEN OUTPUT OPEN Data input "AD0" from external ROM Data input "AD1" from external ROM Data input "AD2" from external ROM Data input "AD3" from external ROM Data input "AD4" from external ROM Data input "AD5" from external ROM Data input "AD6" from external ROM Data input "AD7" from external ROM Connected to PNL 5 V Connected to GND
Processing Operation
I I I I I I I I O O O O O O
Data input "AD8" from external ROM Data input "AD9" from external ROM Data input "AD10" from external ROM Data input "AD11" from external ROM Data input "AD12" from external ROM Data input "AD13" from external ROM Data input "AD14" from external ROM Data input "AD15" from external ROM Address output "A16" to external ROM Address output "A17" to external ROM Address output "A18" to external ROM Address output "A19" to external ROM OUTPUT OPEN Address output "A21" to external ROM Connected to PNL 5 V Connected to GND
I I I I I I I I I
Spectrum analyzer signal input (63Hz) Spectrum analyzer signal input (150Hz) Spectrum analyzer signal input (330Hz) Spectrum analyzer signal input (1KHz) Spectrum analyzer signal input (3.3KHz) Spectrum analyzer signal input (10KHz) MIX signal input for level meter Key return "5" Key return "4"
