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Author Topic: MARCONI 2022D RF GENERATOR  (Read 964 times)

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Offline RADIOAMATTopic starter

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  • Posts: 3
  • Country: fr
MARCONI 2022D RF GENERATOR
« on: July 23, 2019, 09:37:34 am »
Hi
I have my RF generator MARCONI 2022D and
it remains blocked on the start-up phase with the display 2022
This is the version with EPROM 27C512 soft 01
I tested it by injecting an external source 10MHz but still the same problem!
if you have any information, thank you!
73s
792549-0
« Last Edit: July 23, 2019, 09:40:05 am by RADIOAMAT »
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Offline hendorog

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  • Posts: 1628
  • Country: nz
Re: MARCONI 2022D RF GENERATOR
« Reply #1 on: July 23, 2019, 10:01:10 am »
Have you tried the marconi yahoo group. There are guys on there who know these inside out.

https://groups.yahoo.com/neo/groups/marconi_test_instruments/info
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Offline RADIOAMATTopic starter

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  • Posts: 3
  • Country: fr
Re: MARCONI 2022D RF GENERATOR
« Reply #2 on: July 23, 2019, 10:26:39 am »
Hi
Thank-You for your reply, i will post too, on this forum
« Last Edit: July 23, 2019, 11:38:26 am by RADIOAMAT »
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Offline RADIOAMATTopic starter

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  • Posts: 3
  • Country: fr
Re: MARCONI 2022D RF GENERATOR
« Reply #3 on: July 23, 2019, 03:05:32 pm »
I found the fault, no RST pulse of microcontroller 8085 on pin 9, coming from 4020 IC4 change it 4020

Best regards
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