Author Topic: icom 02AT Finals... (Read 5728 times)

rurikdgreat · « **Reply #20 on:** April 27, 2009, 02:13:59 PM »

@shenics_16

di pa rin ba naayos?

Philippine Electronics Forum · « **Reply #20 on:** April 27, 2009, 02:13:59 PM »

GX · « **Reply #21 on:** October 12, 2009, 08:53:21 PM »

Shenics
Here is one possible problem of your 02 , your VCO or PLL has a problem, the freq for the PLL is unlock or not stable kaya the CPU cant lock into the PLL signal. Check around these two section easily you can get service manual for the 02's.

For the final i already repair a down final of the 02, heres the point, you need a high power /temp soldering iron, mine i use a hakko soldering station set to the highest temp around 480 degrees c. and for better view use a microscope for better view of the solder point, next is a very stable hand. This is the reason for these, the solder point is very narrow, one wrong move you will make the final dead already, you will know if the final is repairable view it from the microscope you will see a cut wire bonded on the gold part substrate. This wire is not soldered but spot welded, thats why when you successfully repair the final after prolong heat or use it will disconnect again. Because the original is wire bonded our repair is solder only. Its worth trying repairing it you will know the inside of the finals same with the rf power module of the mobile rig.Good luck

Philippine Electronics Forum · « **Reply #21 on:** October 12, 2009, 08:53:21 PM »

Ikasamoko · « **Reply #22 on:** October 14, 2009, 12:44:31 PM »

Try mo muna reset...

Philippine Electronics Forum · « **Reply #22 on:** October 14, 2009, 12:44:31 PM »

boki · « **Reply #23 on:** October 16, 2009, 11:44:01 AM »

I wonder anyone could give us the insiders idea how to fix such PA of 02N, the SC1025? The jumper thing just like what I have saw to others, according to them, it may lasts for almost a year of usage, thats is a big saving....

Philippine Electronics Forum · « **Reply #23 on:** October 16, 2009, 11:44:01 AM »

BATHALA · « **Reply #24 on:** October 17, 2009, 02:16:16 PM »

Quote from: shenics_16 on April 26, 2009, 02:36:21 PM

sir kasamiko,sinundan ko procedure niyo..na reach kona pinaka taas at pinaka baba ng ferq. naka "u" parin po.?

Malamang sir may tama nyan ang cpu kung palaging u pa rin. Sa tingin ko sir CPU na nyan ang may problema.

Philippine Electronics Forum · « **Reply #24 on:** October 17, 2009, 02:16:16 PM »

Dictador · « **Reply #25 on:** February 14, 2010, 09:43:46 PM »

Oo nga try mo din adjust ang VCO nya.. or tanggalin ung diode na lock frequency. para ma expand yan 02n mo. di porket nag U lock sira na ang finals, its eiher ung VCO adjustment or ung PLL nya...

ren74a · « **Reply #26 on:** May 20, 2010, 12:31:48 PM »

schenics 16. . . ang problema po ng transceiver mo na may U ang una digit is sira na ang PLL (phase lock loop) crystal. papalitan mo sa technician. at sure ako babalik na iyan sa normal working condition. saan ka po ba?

1-Lucio · « **Reply #27 on:** June 04, 2010, 07:57:26 PM »

the problem with your radio is in PLL circuit need mo madala yan sa radio technician to repair or adjust the PLL circuit using some instrument, mas ok na yun kesa dumami pang sira niyan pag ikaw ang kumalikot.

laopan · « **Reply #28 on:** January 25, 2012, 01:07:41 AM »

good day. meron akong ic 02at, transmit nya eh hanggang 100meters lang. finals n po kaya yun? any suggestion po. 73's

RhUNhA · « **Reply #29 on:** January 25, 2012, 07:28:41 AM »

madali lang nmn kung finals ang sira ng 02AT mo..kung naka high power ka at half scale lng yung meter mo..ay 100% sira finals nyan...pwede nmn ma repair yung finals kung hindi pa yan na repair...eto ang pwde mong gawin

Quote from: GX on October 12, 2009, 08:53:21 PM

For the final i already repair a down final of the 02, heres the point, you need a high power /temp soldering iron, mine i use a hakko soldering station set to the highest temp around 480 degrees c. and for better view use a microscope for better view of the solder point, next is a very stable hand. This is the reason for these, the solder point is very narrow, one wrong move you will make the final dead already, you will know if the final is repairable view it from the microscope you will see a cut wire bonded on the gold part substrate. This wire is not soldered but spot welded, thats why when you successfully repair the final after prolong heat or use it will disconnect again. Because the original is wire bonded our repair is solder only. Its worth trying repairing it you will know the inside of the finals same with the rf power module of the mobile rig.Good luck

laopan · « **Reply #30 on:** January 25, 2012, 12:10:10 PM »

tnx. ilang watts n soldering iron ang gagamitin ko para mareach ko yung 480degrees c.

RhUNhA · « **Reply #31 on:** January 26, 2012, 06:52:37 AM »

60 or 100w kaya n yan ,,kaso sobrang liit nung surface para madugtong ulit yung naputol,,

Ikasamoko · « **Reply #32 on:** January 27, 2012, 10:02:30 AM »

no way! di yan mag bond sa wafer!

technique? tusok lang..then let the cover do the rest..

pag isipan nyo..

RhUNhA · « **Reply #33 on:** January 27, 2012, 06:57:57 PM »

Quote from: Kasamiko on January 27, 2012, 10:02:30 AM

no way! di yan mag bond sa wafer!

technique? tusok lang..then let the cover do the rest..

pag isipan nyo..

pwede din yung sinasbi ni master kasam...yung needle or karayom lng na gold,,,tusok method

comet2 · « **Reply #34 on:** May 12, 2012, 02:06:54 PM »

the best to way to repair final is to solder one side at the exposed terminal and sa wafer side (gold plated) discharge with capacitor tested na yan tots from 4F8NTC (jun) from iligan city

73's

DU8UCH

alphavic · « **Reply #35 on:** May 28, 2012, 07:41:06 PM »

agree kay sis KASAMIKO

, I'm repairing Final Module for 20 years! lol, tsaka pagsunog talaga yung wafer enclosed sa gold area kahit anong tusok mo pa di gagana yan, may modification din para magawa ulit yung module!later ko nalang ipapakita yung pics.!kain muna ako gutom na!

Ikasamoko · « **Reply #36 on:** May 29, 2012, 09:44:58 AM »

^ at last may kapanahunan pa ako dito...

laopan · « **Reply #37 on:** October 03, 2012, 04:57:39 PM »

Quote from: alphavic on May 28, 2012, 07:41:06 PM

agree kay sis KASAMIKO , I'm repairing Final Module for 20 years! lol, tsaka pagsunog talaga yung wafer enclosed sa gold area kahit anong tusok mo pa di gagana yan, may modification din para magawa ulit yung module!later ko nalang ipapakita yung pics.!kain muna ako gutom na!

san n po yung pix? tnx

laopan · « **Reply #38 on:** December 21, 2012, 12:07:50 AM »

good day. yung 02AT ko nagshort. n g buksan mo lahat ns display. ano kaya problem nun.

tnx.

Philippine Electronics Forum · « **Reply #38 on:** December 21, 2012, 12:07:50 AM »

Author Topic: icom 02AT Finals... (Read 5728 times)

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