Icom Ic 2200H-No Power again!

[@thewanderer1726]

Very good video. I have this same radio and I have a problem. When I push the PTT at high power, it drops to 50W after 2 seconds and after for 10W. When I set low, mid-low and mid, the power increases to 8, 15 and 30W after 2 seconds with PTT pressed. Could you give me an idea where is the problem? Thanks!

[@angkulotnaprobinsyano4759]

We have some parts before the final,maybe check 1st supply or that we called D/A ,2nd the driver transistor it maybe leaking ang the last try to replace power output o Final thats all

[@thewanderer1726]

Thanks, Ang! Regarding the power, I measured the PA pin 2 and the result was 2V. There was no variation with the PTT pressed. I will follow your advice and will check the D/A Converter (IC5) and Drive Amp (Q35). I though the problem could be in ALC circuit, too.

[@ameliapalaming192]

Salamat sa mga video malaki tulong Yan manung

[@angkulotnaprobinsyano4759]

Salamat den sa inyo dalawa ni Christian malaki bahagi kayo sa ka gaya ko na nagsimula pa lang ipamigay yung kunting kaalaman ko sa mga mahilig sa radio....na ka high moral God bless mo sa nyo

[@harryarqui9492]

Gandang umaga sir, may itatanong lang sana ako sir mayroon ka bang crystal filter ng ic 2200h kc sira yung sa akin tapos wala ako mabilhan ipadala ko lang sa palawan kong magkano yung dalawa

[@izu1370]

Boss yung ic 2200h ko parang nauupos na kandila yung audio volume. Pag ON ng radio malakas pa ang volume ng rx, mga ilang minuto lang kusang humihina ito at parang bulong na lang ang maririnig na audio. Saan kaya ang problema nito, yung maliit na capacitor sa pagitan ng dalawang malaking capacitor sa tapat ng audio ic ay medyo lobo ang ibabaw. Tapat ng pin 4 ng audio ic.

[@angkulotnaprobinsyano4759]

E try mo nlang palitan yung capacitor kung ganon parin yung audio amp palitan mo...

[@warlitoreyescinensejr.793]

Master ilang value po yang zdiode.

[@sophiacanda2689]

Sir location po nung electropro

[@angkulotnaprobinsyano4759]

Sa cagayan de oro po

[@rommelbaring3663]

Sir maayong adlaw unsay problema sa ic 2200h bigla nalang mag shotdown ang power tapos bigla naring mag on

[@angkulotnaprobinsyano4759]

Baka sira yung power switch nya?

[@angkulotnaprobinsyano4759]

Baka sira yung power switch nya?

[@rommelbaring3663]

@@angkulotnaprobinsyano4759 ok sir samat po

[@rahangonz3937]

sir may itatanung sana ako sayo yung ic 2200h ko walang rx pero pag naka down sql may rx siya

[@angkulotnaprobinsyano4759]

Ok e try mo reaheat yung crysnal nya at Rx IC

[@jhonarnoldbagayna8817]

sir meron akong 2300h icom dito ayw bumasa ng speaker mic po

[@angkulotnaprobinsyano4759]

E try mo muna yung spkr mic na walang keypad baka gumana sya pero kung ayaw may sira dyan sa panel o frontboard