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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Showing posts with label
xiegu G90
.
Show all posts
Showing posts with label
xiegu G90
.
Show all posts
08 October 2025
Xiegu G90 squawk at high volume
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On the G90 Groups is an interesting discussion about an audio feedback (squawk) at high volume . The subject is now locked but I think it w...
16 January 2025
Xiegu G90 - O defectiune tipica
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Micul transceiver Xiegu G90 este unul foarte indragit de radioamatorii carora le place sa iasa in natura. Forma sa compacta, cei 20 de W i...
27 March 2024
VFO Encoder selection for Xiegu G90
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From time to time someone start searching for part number of the VFO encoder. Here is a selection of part numbers for encoders without deten...
23 September 2023
XIEGU G90 - FW update problem solution (bricked radio)
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Very often in the latest months the same problem pops out in social media. For other problems I have a dedicated page on my blog but for t...
07 December 2022
Some considerations about voltage readout on radios
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From time to time, in discussion groups some fellow hams start worring about the voltage drop on the radio readout. This is from a Xiegu G9...
06 January 2022
Xiegu G90 Full schematic
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Finally, the schematic of Xiegu G90 is available! Here they are, in pdf format. 1 PA RF Board 2 Small Signal Board 3 Display Unit 4 Microph...
4 comments:
08 December 2021
Xiegu G90 CAT Tuner ideea
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The Xiegu G90 fans desperately need a CAT command to enable the TUNE on the built in ATU. I think we will not see such an improvement too s...
23 November 2021
Let's disassembly and reassembly the Front panel Unit of a Xiegu G90
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Karl DJ5IL , asked me about the access into the Front Panel unit of Xiegu G90. Instead of writing a long story I decided to play a little ...
1 comment:
06 November 2021
Can ICOM IC-7000 microphone be used with Xiegu G90?
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Yes, it can be use! As a matter of fact, any RJ-45 ICOM microphone can be used with Xiegu G90 transceiver. Of course, the ICOM remote micro...
26 September 2021
Xiegu G90 Faults
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I will try to post here faults from various sources and how the problems were mitigated. The post will be periodically updated. Last updat...
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...
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