neon lc32 vestal 17pw26_4 v1

[welshlad27]

hi guys ive got a neon lc32 with a vestal 17pw26_4 v1 board in it .

the problem i have is the boards dead no life in it at all
there was 2 caps bulging so removed them and replaced with no but didnt solve issue
in 1st image ic806 was blown on 1 of the pins i removed it and replaced that aswell ...as u can see the big cap above has black soot on it wich i think is from ic806 blowing ,but took a closer look and the transister q844 looks burnt aswel
could that be the problem of the board being dead

cheers guys

[tom66]

Re: neon lc32 vestal 17pw26_4 v1

Check Q814,Q815 for shorts too.

[welshlad27]

Re: neon lc32 vestal 17pw26_4 v1

hi tom thanks for fast reply how do i go about checking q814 and q815 please

[tom66]

Re: neon lc32 vestal 17pw26_4 v1

Just check across pins on ohms mode for any shorts.

[welshlad27]

Re: neon lc32 vestal 17pw26_4 v1

Just check across pins on ohms mode for any shorts.

cheers tom ill check them now and get bk to you asap

[welshlad27]

Re: neon lc32 vestal 17pw26_4 v1

Just check across pins on ohms mode for any shorts.

odd i no but powerd up of off and what shud readings be please

[welshlad27]

Re: neon lc32 vestal 17pw26_4 v1

Check Q814,Q815 for shorts too.

did u mean q813 and q814 as cant fine q815

[tom66]

Re: neon lc32 vestal 17pw26_4 v1

Yeah sorry.... The two ones on heatsink next to each other.

[welshlad27]

Re: neon lc32 vestal 17pw26_4 v1

Yeah sorry.... The two ones on heatsink next to each other.

just tested on my dmm and both showed a reading of 010 dont now if thats right or not

[tom66]

Re: neon lc32 vestal 17pw26_4 v1

That is probably shorted; remove them to confirm the diagnosis.