#58 Hoffman H225 CB Radio Repair

My repair of a radio that was sent to me to fix, I found it had some parts missing, and as I didn't have a circuit diagram I had to trace the circuitry with my oscilloscope in order to find the fault. #ifixstuff #thedefpom #electronicsrepair
TheDefpom Merchandise: teespring.com/...
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Some Of My Electronics Tools (video and purchase links)
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Boonton
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4220.
8210: defs.link/?u=e...
Fluke
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8842A:
45: defs.link/?u=e...
343A: defs.link/?u=1...
5200A: defs.link/?u=a...
540B: defs.link/?u=0...
893A.
A90.
HP/Agilent/Keysight
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4261A: defs.link/?u=0...
5005A.
5342A 18GHz: defs.link/?u=5...
6181B: defs.link/?u=b...
8012B: defs.link/?u=c...
8648B: defs.link/?u=d...
8901B: defs.link/?u=5...
DSOX1102G: defs.link/?u=a... defs.link/?u=1...
E3646A: defs.link/?u=1...
Marconi
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2022D.
2955.
TF2103: defs.link/?u=6...
Rohde & Schwarz
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SMY: defs.link/?u=9...
CMU200: defs.link/?u=8...
Polarad SPN: defs.link/?u=2...
Siglent
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SDM3065X: defs.link/?u=1... defs.link/?u=1...
SDS2102 (hacked to 340MHz): defs.link/?u=1... defs.link/?u=1...
SPL-1008.
SDP1168X: defs.link/?u=1... defs.link/?u=1...
SDL1020X-E: defs.link/?u=a...
Other Equipment
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KSGER T12 Soldering Iron: defs.link/?u=6... defs.link/?u=5c...
Quick 861DW: defs.link/?u=1... defs.link/?u=a...
S-993A: defs.link/?u=0... defs.link/?u=e...
EEVBlog BM235: defs.link/?u=1...
YR1030 Battery ESR: defs.link/?u=c...
Heathkit IT-12 Signal Tracer.
Racal Dana 1992: defs.link/?u=8...
Bird 43: defs.link/?u=4...
Sinadder 3: defs.link/?u=2...
Audio Control SA-3050A RTA: defs.link/?u=a...
Korad KA3305D: defs.link/?u=6...
PDVS2mini: defs.link/?u=8...
Valhalla 2703: defs.link/?u=0...
Feeltech FY6800: defs.link/?u=8... defs.link/?u=34...
Eakins Microscope: defs.link/?u=b... defs.link/?u=2...
Mustool G600: defs.link/?u=b... defs.link/?u=3...
Handheld Equipment
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Uni-T UT210E: defs.link/?u=3... defs.link/?u=e...
DER DE-5000: defs.link/?u=0... defs.link/?u=1...
MK-328: defs.link/?u=0... defs.link/?u=7...
MESR-100: defs.link/?u=0... defs.link/?u=0...
ESR Meter: defs.link/?u=0...
HOPI: defs.link/?u=7...
PeakMeter PM6252: defs.link/?u=5...
HS1010: defs.link/?u=1...
Thermal Camera: defs.link/?u=2... defs.link/?u=4...

[@grahamhill3357]

Can you help me I have York 863 the last time it was working was mid 2000 it won't a sevice

[@williamward3908]

Hi I have a Hoffman H225 bought from new about 5 yearsago hardly used butthere is no audio the microphone works changing channel and display shows transmit bars at full strength but there is just no squelch sound or audio from speaker . had itapart looks fine to me no rust clean connections speaker wires are sound and well soldered anyidea where the problem may lie