A collection of notes on the inner workings of the majority kings radio.
Media:
@import url("https://fonts.googleapis.com/css2?family=Press+Start+2P&display=swap"); | |
body{ | |
background:#fff; | |
font-family: "Press Start 2P", cursive; | |
} | |
div#container{ | |
background:#EEE; | |
font-family: "Press Start 2P", cursive; | |
font-color: FFF; |
Yamaha SPx900 – repair log | |
-- FAULT -- | |
Noted fault, "BATTERY LOW" warning on switch on, not passing audio. | |
Inspection revealed that a new battery was in place (reading 3.1v) and at some point, the 4 electrolytic capacitors on the PSU board had been replaced as well as the reservoir capacitor C163 across the 5v rail on the main board. | |
The display was very faint, and the LED backlight very dim. The display was original. |
a "repair " note for a failed to repair one. I even worked out the schematic | |
but could not find the reason for the slightly linear ps characteristic, not | |
full switching, and then thermal runaway. Even tried rewinding the secondary | |
of a generic smps toroid and could get it reliably working but only with a | |
fan. There was some shorted turns in the original, presumably due to excess |
My Apple devices started stating "incorrect password" for my network, even though they had conncted previously. | |
So how to fix Unifi network "incorrect password" error on iPhone, iPod, iPad and Macbook pro? | |
The reason for the error is the WiFi management done on iOS devices. | |
The default settings for the Unifi AP range are not compatible with iOS 11 and 12 and OSX High Sierra (and maybe more). | |
The reason for the error is the "DTIM Mode" (beacon timing) setting for power saving. |
#run eyes within docker and display on X11 host. | |
docker run --rm -e DISPLAY=host.docker.internal:0.0 -it gns3/xeyes |
#!/bin/bash | |
# Record radio4 FM from Winter Hill. | |
# To be triggered by cron to record Shipping Forecast. | |
# "timeout" will send a SIGTERM to rtl_fm to abort the recording after 5 mins. | |
# Afterwards the wav file is converted to 11025 sample rate using sox. | |
# "touch" will transfer the original timestamp to the new file | |
# the original rtl_fm wav-file is deleted. | |
timeout -s SIGTERM 300s rtl_fm -M wbfm -f 93M -s 60k -g 20 -E wav -F 0 radio4fm.wav |