YO3HJV
Hamradio, Electronics& Stuff
XIEGU G90 Collection
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Full schematics
Block Diagram and Schematic
G90 Faults and mitigation
Reflashing the Bootloader
Audio Amp Gain Mod
Power supply section
SMPS regulators instead of LDO
"COMM LOST" Error
MCU and DB9 reference
External Speaker Mod
Firmware Programming Cable Schematic
High Resolution Pics
Power Output vs Supply Voltage
Front Panel Backlight
ATU issues
ICOM RJ-45 Microphone with G90
Disassembly the Front Panel of G90
VFO encoder selection
On screen voltmeter
Repair Manual by XIEGU
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21 July 2021
9A/YO3HJV/P
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I planned to work HF/portable from Dubrovnik when coming back from Austria but, unfortunately, the change of pandemic rules for entering th...
19 July 2021
Xiegu G90 MCU and DB9 reference
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## Board revision: V2.0.7 GAI03 ## LCD Display: KD018QQTBN009-RT Link to manufacturer: http://en.tft-tft.com/product/detail?id=19 ### u...
17 July 2021
Xiegu G90 power supply section
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Here is the schematic for the power supply section on the PA Board of the Xiegu G90 transceiver. The board is marked "G90-BASEBD-V2.0...
15 July 2021
Xiegu G90 replacing 5V LDO with SMPS
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Owners of Xiegu G90 knows the radio can get pretty hot just on receiving. Looking inside the radio, on the lower board are two linear regula...
7 comments:
14 July 2021
Xiegu G90 output power versus supply voltage
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Someone pointed to me that the Xiegu G90 has inconsistency in Tx power at various power supply voltages. So, because I am a brave curious ha...
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