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HEATHKIT GD-1246A RECHARGEABLE PORTABLE LIGHT SCH

OTHER - SERVICE MANUAL
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SERVICE MANUAL
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  • Also known:
    HEATHKIT GD-1246A PORTABLE LIGHT GD1246A GD 1246 1246A
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Relevant OTHER forum topics:
SMD tranzisztor azonositása
Sziasztok. Nem tudná valaki megmondani, hogy mi lehet ez a jelzés? smd tranzisztoron. Áramkor szerint NPN
Horizon Fitness adventure 1 plus futópad leállt
Sziasztok

Adott egy ilyen futópad ami úgy állt meg, hogy nem ment le teljesen a pad része. Félúton megállt azóta nem tud életre kelni. A kezelő felülete sárgán világít de nincs LCD kijelzés. Az alul lévő panelen egy zöld LED villan 7-et. A mechanikai lehetőségeket átnéztem, de nem szorul semmi. A végállás kapcsolóra nem reagál. Sajnos nem találok sehol hibalistát, sem kapcs.rajzot. Ha valaki tudna ebben segíteni azt megköszönném.

Üdv
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?

 

Ariston gázkazán gyulladás észlelés hibák
Üdv!

Sikerült Valakinek megoldani "az egyben van a lángőr érzékelő bemenet és a szikráztató" fajta paneleknél a 500-as hibákat...?

https://alphagaz.hu/termek/vezerlopanel-3/

 
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