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#19276 - 08/23/19 04:25 PM Atmospheric discharge in DVI
deny Offline
VIP Japhar
newbie

Registered: 03/08/16
Posts: 45
Dear friends,

I was presented with a lightning strike that hit the DVI output of my DM8000 japhar clone. frown

All for a Chinese HMDI switch.

Below are the images of the components I need to replace. I need help, what is the correct specification of the components that signaled that they were damaged by the electric arc.
I need to know where to buy these components.

The dm8000 turns on, starts the power led and the hard disk. However, no signal and video signal are input to the main screen on the front.

Thank you very much for your kind colleagues attention !!

Deny H.P


Attachments
RESISTOR R816 R817.png (2 downloads)
motheboard main.png (3 downloads)
WhatsApp Image 2019-08-23 at 19.18.01 (2).png (3 downloads)
D407 D406 F400.png (3 downloads)


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#19297 - 08/24/19 07:16 AM Re: Atmospheric discharge in DVI [Re: deny]
Johnny_B Offline
VIPF Japhar
enthusiast

Registered: 03/08/15
Posts: 218
Loc: Netherlands
R816/R817 = 2k
D402/D406/D407 = A7W SOT23-3 Dual Surface Mount Switching Diode.
D403 = WB1 sot23-3 I think, a zener diode the BZX84-C3V3.
_________________________
Doing nothing leads to nothing.

------------- Please note, for technical support -------------
Will be given here, or on the jb8a8f8 forum and I prefer it in English.
Johnny B.

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#19298 - 08/24/19 07:35 AM Re: Atmospheric discharge in DVI [Re: Johnny_B]
deny Offline
VIP Japhar
newbie

Registered: 03/08/16
Posts: 45
Many thanks Johnny,
Can you get any backing to repair dual surface SMD? some background material on the internet.

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#19299 - 08/24/19 07:59 AM Re: Atmospheric discharge in DVI [Re: deny]
Johnny_B Offline
VIPF Japhar
enthusiast

Registered: 03/08/15
Posts: 218
Loc: Netherlands
I'm not sure what you ask but the removal of these components are mostly done with a hot air station.

When you mean, if I could give you some sellers which offers these parts, then I advice to use Google for searching for it.
_________________________
Doing nothing leads to nothing.

------------- Please note, for technical support -------------
Will be given here, or on the jb8a8f8 forum and I prefer it in English.
Johnny B.

Click on the banner if you like to go there..

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#19301 - 08/24/19 09:51 AM Re: Atmospheric discharge in DVI [Re: deny]
Admin Online   content
Japhar Member
Carpal Tunnel

Registered: 10/19/10
Posts: 10112
Perhaps cheaper to buy a second hand ?

https://www.ebay.de/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw=DM8000HD&_sacat=0

Admin

P.S.: Is the SCART working if you put a SCART cable from box to TV or use the AudioRW/VideoY DIN cables on the back of the box ?
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#19302 - 08/24/19 06:26 PM Re: Atmospheric discharge in DVI [Re: Admin]
deny Offline
VIP Japhar
newbie

Registered: 03/08/16
Posts: 45
I did not test with the SCART cable. I did not see the front main display screen initialize so did not perform this test. Thanks for the tip!

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