DAS Troubleshooting
| Problems | Cure |
|---|---|
|
No Response to Button push |
S2 (Reset) switch needs to be replaced |
|
On LCD station - All Black bars that don't go away |
S2 (Reset) switch needs to be replaced |
|
No response to button hits, and one of the PRESET LED's flashes every so often. On LCD stations - Waiting for Data Link |
U2 is bad. Thumbwheel switch is set to wrong address |
|
Certain buttons work, other do not |
Switch contacts are dirty |
|
Fader doesn't respond or brings up more channels than expected |
Pot is bad. A/D converter is bad. |
|
No response to button hits |
Crystal (Y1) is damaged or bad. |
|
Station is dead |
VR1 is damaged or bad. This can get damaged when the station is stuffed into it's backbox. |
|
No communication between EMAP and stations |
Check U32 (Z216-F) in the EMAP.U46 and U47 are spares. Check U2 (Z216-F) in the stations - on older boards the designation may be “Z” instead of “U” |
|
Random Lights are on or flickering |
Deep Clear the EMAP by jumping pins 7 & 8 on J3. Hit Reset and remove jumpers. Hit reset again. |
ETC Legacy Data Termination Guide Diagram
Notes
- To Reset: Take Fuse out and put it back in (top right hand corner of ARW).
