Some time ago i mentioned a problem with IBM 5154. Now i've finally decided to take the monitor to a professional for repair. So now i've been testing the monitor again for detailed problem report.
The 5154 does not work properly with Tandy 1000 SX. The colors or brightness doesn't seem to be quite right. I looked at schematics and pin 7 of the RGB connector is connected to green (like pin 4). IBM CGA connector specifications says that pin 7 is reserved and EGA mode 2 uses it for secondary blue. Could this be why the 5154 does not work quite right with Tandy 1000 SX?
The 5154 does show the symptoms i mentioned in the other thread with clone XT and 100% compatible CGA adapter. But at least the colors are correct.
The 5154 does not work properly with Tandy 1000 SX. The colors or brightness doesn't seem to be quite right. I looked at schematics and pin 7 of the RGB connector is connected to green (like pin 4). IBM CGA connector specifications says that pin 7 is reserved and EGA mode 2 uses it for secondary blue. Could this be why the 5154 does not work quite right with Tandy 1000 SX?
The 5154 does show the symptoms i mentioned in the other thread with clone XT and 100% compatible CGA adapter. But at least the colors are correct.