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PLESSEY CONSUMER IC 1981 HANDBOOK

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5.9 MB
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225
Category
OTHER
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Relevant OTHER forum topics:
Alkatrész beazonosítása
Sziasztok,

Adott egy Alcatel Onetouch Pixi 3 (10) típusú tablet, ami vizet kapott.
Hibajelenség: Töltőre dugva egy picit tölt, majd megáll. Ha kihúzom, újra csatlakoztatom, akkor megint tölt és újra megáll. Így egy nap alatt (felügyelet mellett) 63%-ra tudtam feltölteni, de ez a max :(
Van egy gyanús alkatrész, de semmit nem találok róla. Ebben kérném a segítséget, hogy ki tudjam mérni:
SMD 6 lábú cucc a felírat rajta: SKA6F
Mellékeltem róla képet is (bár ez még a tisztogatás elötti).
Előre is köszönöm, ha valaki tudja mi lehet ez, vagy segít a kiderítésében.

Üdv: Laci
Intech LH-5 Heater

Company no longer in business here in the US.
This is a product that heats up and dries wet ski boots,
the board powers 2 big heat guns I guess with programmed cycle
times. No SM or schematic of course.

Main bridge was shorted, seems directly fed from 115V line power.
Replaced the bridge with a thru hole type and hooked up with a variac to power.
 At one point the panel lit up with power, then there was a snap
and thought I saw sparks from the 2 large heat guns in the chassis,
then dead. Fuse blown - bridge shorted again.

Seems like they are using a IC on the boards
to handle the switching side of the SMPS, its a Viper35SP
made by St electronics:

http://www.st.com/content/ccc/resource/technical/document/datasheet/4b/ee/d2/34/15/48/4e/66/CD00144872.pdf/files/CD00144872.pdf/jcr:content/translations/en.CD00144872.pdf

Looks like its obsolete / NLA from what I can see so far. Some on Ebay for purchase.
I think the IC runs straight from the line power, rated at 800V.

Should I try the support components around the IC or try replacing the IC?

I am thinking the heat buildup perhaps caused the smd caps to dry out?

 

power Inverter
helló mindenkinek kezembe akadt egy PI-D01es inverter gondoltam a keltetőhöz teszek egy vész tápot áramkimaradás esetére de mikor kinyitottam észrevettem hogy hiányos nemtud valaki egy kapcsolási rajzot hozzá?
opticum 4000c
Sziasztok olyan kérdésem lenne, hogy az opticum 4000c beltérin nincs digitális hang kimenet nem tudja valaki hogy esetleg a panelon nincs meg a helye?És ha igen kb mennyi alkatrészt kéne pluszba beültetni a panelba? Kérem aki tud segítsen! Köszönöm
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