Yamaha MG166sx repair/popravilo
MG166sx
Replacing IC071 op.4558
XLR output failed/menjava
IC071 op.4558 XLR izhod ne deluje
Zaradi
dotrajanosti ali kakšnih napak omrežja,transporta ali napak v kablih itd..se
nam lahko večkrat zgodi da odpove izhod.Mixer L avdio
izhod ne deluje.
Due to wear
or what network errors, or errors in the transport cables, etc. .. can often
happen to failed XLR output. The mixer's
L output does not work.
Previdno odvijemo zgornjo panel plošče z vijaki. Odstranimo tudi vse gumbe ki pokrivajo panel ploščo.
Carefully unscrew
the top panel boards with screws. Remove
all the buttons
covering the panel board.
Panel
ploščo odstranimo z mixerja in jo lahko po potrebi
tudi očistimo prahu ali nesnage.
Removed panel plate from the mixers housing, and may, if necessary, clean of dust or dirt..
Odvijemo tudi vezje in previdno odklopimo vse konektorje za povezavo s napajalno ploščo in odstranimo vezje z ohišja mixerja.
Unscrew the
circuit board and carefully disconnect
all connectors for power supply
and remove the pcb from
the housing mixers.
Vezje
položimo na hrbtno stran,pred tem si pripravimo delovno površino.Sledimo
izhodu iz XLR vtičnice in najprej vizualno preverimo elemente.Ugotovili
smo da je IC071 fizično poškodovan,zato ga je potrebno zamenjati.
Place pcb
on the back side, before you prepare
the working area. Follow the
connection from XLR output sockets and the first
we can visual
check items. We found the IC071 is physically damaged, it must be replaced.
Z vročim
zrakom odspajkamo čip NJM4558 (IC071),pazimo da ne
segrevamo ostalih elemento v okolici.
With hot
air resolder the chip NJM4558 (S stands for SMD), taking care not to heat other elements
around.
Očistimo
vezje in z vročim zrakom prispajkamo nov element.
Okolico lahko očistimo z alkoholom. Sledi test delovanja. Bodimo previdni,da
priključimo vse konektorje za napajanje.XLR
L izhod deluje.
Clean the
circuit board and soldered with
hot air new
item. Surroundings can be cleaned
with alcohol. Followed by test operations. Let's be careful of transistors
that are in the air heat is not dissipated, the circuit protect against possible contact with non-conductive materials.
Preden mixer sestavimo,previdno vstavimo vezje v ohišje in ga
pritrdimo z vijaki. Z vijaki pritrdimo tudi panel ploščo in nazadnje nataknemo
še vse potrebne gumbe.
Before the
assembly the mixer carefully insert the circuit
in the housing and fix with
screws. Fix the panel with screws falso and
the for the
last put on panel all the buttons.
Opozorilo:AudioLogs ne odgovarja,da ne bo
prišlo do napake med postopkom ali za škodo ki se lahko zgodi. Preden se lotite
popravila izlključite aparat iz omrežja. S posegom v
aparat lahko poškodujete vezje. Bodite previdni pri menjavi IC,ker lahko poškodujete
ploščo tiskanega vezja. Če tega posega niste vešči naj za vas to opravi
strokovnjak.
Warning: AudioLogs is not responsible, that there will be no errors during the procedure or damage that may occur. Before you start to repair,plug
out unit from the network. By intervening in unit could damage the circuit. Be careful when frepacing IC because they can damage the pcb. If you are not skilled in this practice
should be done for you an expert.
AudioLogs,September2013,info@audiologs.com
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