technical question - GSM-Forum

hany elsaghir f · 01-30-2007, 13:21

hi mates
is the direct heater on 3220 pa corrupt it?
i mean when i replace 3220 pa should i heat under the pa or its ok to direct hot air directliy on it?
thnx
hany the egyptian

**.:SARCAR:.** · 01-30-2007, 16:57

friend direct heat on PA should damage PA
you should apply two steps to fix PA on any set
first > while open faulty PA keep hot air gun on that place , apply good flux on that area then place new PA apply more flux & give a little heat surrounding of PA

second > in some sets you can heat back side of pcb for changing new PA & apply good flux around PA

hope this will help you

01-30-2007, 13:21	#1 (permalink)
hany elsaghir f Freak Poster Join Date: Feb 2006 Location: EGYPT-ZAGAZIG Posts: 134 Member: 234790 Status: Offline Thanks Meter: 4	technical question hi mates is the direct heater on 3220 pa corrupt it? i mean when i replace 3220 pa should i heat under the pa or its ok to direct hot air directliy on it? thnx hany the egyptian

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01-30-2007, 16:57	#2 (permalink)
.:SARCAR:. Moderator Join Date: Jul 2006 Location: Midnapore,West-Bengal,India Posts: 5,402 Member: 322206 Status: Offline Sonork: 100.1594813/.:SARCAR:. Thanks Meter: 1,350	friend direct heat on PA should damage PA you should apply two steps to fix PA on any set first > while open faulty PA keep hot air gun on that place , apply good flux on that area then place new PA apply more flux & give a little heat surrounding of PA second > in some sets you can heat back side of pcb for changing new PA & apply good flux around PA hope this will help you