issues
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issues [2015/10/12 02:08] krisha [The display is powered on, but no text is displayed while booting] |
issues [2015/12/31 20:32] liooo |
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| My display did also not show text. Sometimes other troubles as well and rad1o not really useable. Enabling VDD on RF (all the time) solved it temporarily. TX was too low and I found a bridge between VDD and RF1 below IC402. Resoldering it solved my issue. There should be no DC on the RF lines. Check DC voltages around the RF switches. | My display did also not show text. Sometimes other troubles as well and rad1o not really useable. Enabling VDD on RF (all the time) solved it temporarily. TX was too low and I found a bridge between VDD and RF1 below IC402. Resoldering it solved my issue. There should be no DC on the RF lines. Check DC voltages around the RF switches. | ||
| + | |||
| + | == Missing high pass filter | ||
| + | There is no high pass populateted (FL301) because of the cost. You can't transmit or receive above 2.75 GHz without modifications. | ||
| + | === Solutions | ||
| + | * Populate the high pass | ||
| + | * Bridge the high pass and add an external filter\\ | ||
| + | For RX, a bridge on the high pass should be OK\\ | ||
| + | {{:missing_high_pass_fl301.png?200|}} | ||
issues.txt ยท Last modified: 2015/12/31 20:36 by liooo
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