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SKYWORTH 168P-P5L031-W0 PSU SCH

POWER-SUPPLY - SERVICE MANUAL
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POWER-SUPPLY
SERVICE MANUAL
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    SKYWORTH PSU 168 PP 031 168P P5L031 W0
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Relevant POWER-SUPPLY forum topics:
VIONN Go okos vadriasztó 1 év működés
Hello!
Vettünk egy autót benne van a fenti vadrisztó. Erre a forgalmazó 1 év működést ír. Mi alapján lehet ez, akku ennyit bír, mikrokontroller így van felprogramozva? Esetleg akku csere után újra indul e? Köszi!
https://vionn.hu/vasarlas/vionn-go/

folytatás:

Hát csak szétszedtem, mert szokoppal néztem piezoval és nem csinált semmit.
Teljesen roncsolásmentesen szét jött. Vicc kategória a belseje, 2db 3V lítium elem sorba kötve,
amik jól merült állapotba vannak 4V a kettő együtt. Működése: a gomb megnyomásakor a tirisztor (S6X8TS2) rákapcsolja a tápot az 555 ic nek látszó 8 lábú smd-re. Amig az elem le nem merül rajta tartja a feszt. Mini csipogó szerintem sokat nem érhet, ezt a vad nem messziről halja.
Az egész előállítási költsége 3-4eFt, ez jó üzlet valakinek. És ehhez még Levente is nevét adta.
 
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?

 

Elektromos bicikli töltők
Sziasztok,üdv itt lesz egy pár kínai töltő elektromos járműhöz biciklihez
Strong SRT8112 Csak a zöld led világit semmire nem reagál.
Szevasztok Hoztak itt egy ilyen DVB-T t ,semit nem csinál,kivéve hogy a tv t átviszi AV ba,olvasgattam az ALCOR os topikokat,a tápja meg egyezik vele,az 5 meg a 12 volt megvan,a másfél is semmi nem terheli le,processzor nem forró,mi lehet a gond vele?
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