Hi;
I searched all posts relating to missing sounds and have come to a road block.
Originally I had both, ROM error and missing sounds but have repaired the ROM error by replacing the #10 ROM socket and ROM PCB ribbon cable. I also chksum the #10 ROM and it comes up AFC4, just to make sure.......
Back to the missing sound......
I have the "longer" sound board.
I checked the fuses - OK.
I checked the caps for shorts / open - seems OK
I tried grounding 10J3 pins to GND and did not receive any sounds
I get the "crackling" through the speaker when running the volume pot so the speaker and amp seem to be working as well......
Does anyone have any suggestions or are there any other tests I could perform to try and isolate the problem?
ANY help appreciated.
Thanks in advance
Jeff
I searched all posts relating to missing sounds and have come to a road block.
Originally I had both, ROM error and missing sounds but have repaired the ROM error by replacing the #10 ROM socket and ROM PCB ribbon cable. I also chksum the #10 ROM and it comes up AFC4, just to make sure.......
Back to the missing sound......
I have the "longer" sound board.
I checked the fuses - OK.
I checked the caps for shorts / open - seems OK
I tried grounding 10J3 pins to GND and did not receive any sounds
I get the "crackling" through the speaker when running the volume pot so the speaker and amp seem to be working as well......
Does anyone have any suggestions or are there any other tests I could perform to try and isolate the problem?
ANY help appreciated.
Thanks in advance
Jeff

