CurtPalme.com Home Theater Forum

[dvh99]

upon looking at my hdm i noticed some burn marks around r23 d3 and c12.
the pj was running just fine but i would like to replace those 3 parts just in case.
as you can see r23 has already been removed.
i am colorblind so looking at colourcodes doesnt work out for me.
brown and red looks the same to me and my meter measures up to 2mohm and doesnt show anything.
so i think the resistor has failed or has a higher value then 2mohm.

if someone knows the value for r23 d3 and c12 plz let me know.

dennis

hdm marquee 9500lc 50-2003-08p

[Nashou66]

C-12 10% 10nf 2KV
D3 BY505 2000V HV
R23 22M .5W 5% HV

But if those went something else might be bad, follow the traces. Or send to curt.

Athanasios

[dvh99]

ok i found this for the diode
http://nl.farnell.com/vishay/by203-20s-tap/diode-high-voltage/dp/1075763

the diode is a soft recovery and i dont know if it can be replace with a small signal type diode
the soft recovery diodes go up to 1.4kv

[dvh99]

and this 1 for the cap the disc is only available in the us with 25euro shipping costs.
http://nl.farnell.com/vishay-roederstein/mkp1845310204/capacitor-axial-mkp-10nf-2000v/dp/1413940

[Nashou66]

that cap is way to big, look for a ceramic.

nashou

[Nashou66]

http://www.mouser.com/ProductDetail/Xicon/140-202P9-103K-RC/?qs=sGAEpiMZZMt1mVBmZSXTPCB4s6x5SlOXz7Jdi%252biSDKM%3d

[dvh99]

http://nl.farnell.com/jsp/search/productdetail.jsp?sku=1413899

hi nashou i found this 1 the disc isnt available here.
25 euro for 1 cap is too much

[Nashou66]

[dvh99]

i saw that 1 but his a huge amount of tolerance.
but would it matter if would use film there.

the film fits nice 15mm

[dvh99]

ok i ordered the ceramic cap, but i still dont know what diode to order.
the original by505 cant be ordered and the only 1 that comes close is a small signal type diode.
the specs differ a bit so i am afraid that the 1 i found isnt a good replacement.
http://www.farnell.com/datasheets/57071.pdf
this is the 1 thats in stock.

http://pdf1.alldatasheet.com/datasheet-pdf/view/17405/PHILIPS/BY505.html
and this is the original, perhaps there is someone with experiencing in these diodes that know if the farnell diode is a good replacement.

dennis

[dvh99]

i thought id up this topic cause i still dont know if the diode i ordered for the hdm is a good replacement

see my previous post.

ps: the diode i ordered from farnell is the 20s version.

really hope someone comes up with an answer.

tx
dennis

[Nashou66]

if tis 2000vdc rated it should be ok.

Athanasios

[dvh99]

ill give it a try then btw got my bellows today, thanks.
funny thing is that the glycol that i ordered 10 days ago isnt here yet.
5000 kilometres vs 50 and the bellows win.

[Nashou66]