Uniden
PRO500D (UT-317J)
Documentation Project
CBTricks.com
Integrated Circuits Internal Diagrams
LB1423
LED Meter Driver
M5223
Squelch and AGC Amplifier
TDA1905
Audio Amplifier
TDA1220B
2nd MIX
2nd IF Amp
DET
AGC
SM5124A
PLL Frequency Synthesizer
LA1185
RF Amp
1st MIX
Disclaimer: Although the greatest care has been taken while compiling these documents,
we cannot guarantee that the instructions will work on every radio presented.