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IFR COM120B Manual Service
Posted: Wed Apr 05, 2017 6:28 am
by Audiotron
Hello friends
Would anyone have the Aeroflex IFR COM120B Service Diagram or Service Manual?
I have a problem drive on the RF Generator, not generating level at the output. Some
Thank you all and a great day to all of you.
Re: IFR COM120B Manual Service
Posted: Fri Apr 07, 2017 5:04 am
by Audiotron
Hi ,
Would anyone know the Part Number of the transistors used in the RF output of the generator function.
Thank you for All
Re: IFR COM120B Manual Service
Posted: Fri Apr 07, 2017 7:47 am
by Audiotron
Hi ,
From what I analyzed one of the transistors seems to me to be the MAR-8 MMIC of 50 Ohms the other I am in doubt.
Hugs for all
Re: IFR COM120B Manual Service
Posted: Tue Apr 11, 2017 8:04 am
by Audiotron
Hi for All ,
Any ideas, anyone have any RF part diagram of 120B .
Re: IFR COM120B Manual Service
Posted: Thu Apr 13, 2017 8:59 am
by lc4600
Q1 (alc amp) to U1(1na10386) to U11(MSA1105) to 8dBpad to J2 on block -8dBm output to Attenuator
Carl N0PXJ
Re: IFR COM120B Manual Service
Posted: Sun Apr 16, 2017 1:21 pm
by Audiotron
Thank you Carl,
I have already ordered the transistors as soon as they arrive, as a result of the operation,
Thank you very much.
Re: IFR COM120B Manual Service
Posted: Wed Nov 15, 2017 2:45 pm
by Audiotron
Hi ,
Sorry for the delay in return, The problem was really in the last MMIC amplifier (INA10386) of the unit OUTPUT GEN ....thank you Carl N0PXJ