Netgear r7000 burned out component

Post new topic   Reply to topic    DD-WRT Forum Forum Index -> Broadcom SoC based Hardware
Author Message
Malachi
DD-WRT Guru


Joined: 17 Jul 2012
Posts: 7221
Location: Columbus, Ohio

PostPosted: Thu Jun 25, 2015 0:29    Post subject: Netgear r7000 burned out component Reply with quote
Can anyone tell me what this is and if it can be replaced?

Mod edit: Come on Malachi....that image is way too big and breaks the forum rules as it screws up formatting....resize and replace if necessary.

Sorry Murrkf. I wanted it to be big enough for someone to be able to tell what it was.

Mod edit2: it's okay but doesn't really help to screw up the formatting on this board so they can't also read your question! People with large monitors don't see how bad this is for those who use small monitors.



r7000.JPG
 Description:
 Filesize:  183.49 KB
 Viewed:  6431 Time(s)

r7000.JPG



_________________
I am far from a guru, I'm barely a novice.


Last edited by Malachi on Thu Jun 25, 2015 1:22; edited 1 time in total
Sponsor
ddaniel51
DD-WRT Guru


Joined: 19 Feb 2013
Posts: 1383

PostPosted: Thu Jun 25, 2015 1:12    Post subject: Reply with quote
Hi Mal, it is a capacitor. From the looks of it's placement it is being used for noise suppression on perhaps a 5vdc buss. The pinout for the ic next to it would confirm.

Is the 7000 it's in functional? If it is indeed on the 5v buss it's failure could indicate a more serious issue.

Yes it is replaceable with the proper tools and skills to do so without damaging the board.

If it's dead you could sell it to me for dissection. Razz

It's strange I don't see any clues to indicate how it broke.

Dave

_________________
Segment 1 R9000 10Gb LAN, 1Gb ISP BS
Test Bed R9000 10Gb LAN
Wired AP 1 R9000 10Gb LAN
Wired AP 2 R9000 1Gb LAN
Wired AP 3 R9000 1Gb LAN
Test Bed R7800 1Gb LAN OpenWRT Kong
download1.dd-wrt.com/dd-wrtv2/downloads/betas/ (Brain Slayer)
www.desipro.de/openwrt/ (Kong's)
YAMon usage-
www.monitoring.com/manualInstall.php
Malachi
DD-WRT Guru


Joined: 17 Jul 2012
Posts: 7221
Location: Columbus, Ohio

PostPosted: Thu Jun 25, 2015 1:19    Post subject: Reply with quote
No power to it at all. I have another r7000 that has the same problem but on it the leds come on at least.
I,was thinking of unsoldering one that looks like the same size from the one that doesn't power up and soldering it to the one that does.
Is that feasible? Or can those be purchased somewhere?

Do you think I can solder it using the same iron I use for serial and jtag?

_________________
I am far from a guru, I'm barely a novice.
ddaniel51
DD-WRT Guru


Joined: 19 Feb 2013
Posts: 1383

PostPosted: Thu Jun 25, 2015 1:31    Post subject: Reply with quote
Malachi wrote:
No power to it at all. I have another r7000 that has the same problem but on it the leds come on at least.
I,was thinking of unsoldering one that looks like the same size from the one that doesn't power up and soldering it to the one that does.
Is that feasible? Or can those be purchased somewhere?

Do you think I can solder it using the same iron I use for serial and jtag?


If you have two units with the same cap popped you have bigger problems. I't's indicative of an internal voltage regulator failure which could have been brought on by a bad power supply.

If you are careful you should be able to wipe that cap off the board and have it function without it provided the regulators haven't been blown.

Sending a pm with my phone number.

Dave

_________________
Segment 1 R9000 10Gb LAN, 1Gb ISP BS
Test Bed R9000 10Gb LAN
Wired AP 1 R9000 10Gb LAN
Wired AP 2 R9000 1Gb LAN
Wired AP 3 R9000 1Gb LAN
Test Bed R7800 1Gb LAN OpenWRT Kong
download1.dd-wrt.com/dd-wrtv2/downloads/betas/ (Brain Slayer)
www.desipro.de/openwrt/ (Kong's)
YAMon usage-
www.monitoring.com/manualInstall.php
Malachi
DD-WRT Guru


Joined: 17 Jul 2012
Posts: 7221
Location: Columbus, Ohio

PostPosted: Thu Jun 25, 2015 1:35    Post subject: Reply with quote
I bought them as is, I have no idea what caused the problem.
_________________
I am far from a guru, I'm barely a novice.
ddaniel51
DD-WRT Guru


Joined: 19 Feb 2013
Posts: 1383

PostPosted: Thu Jun 25, 2015 1:55    Post subject: Reply with quote
I smell toast. lol

Dave

_________________
Segment 1 R9000 10Gb LAN, 1Gb ISP BS
Test Bed R9000 10Gb LAN
Wired AP 1 R9000 10Gb LAN
Wired AP 2 R9000 1Gb LAN
Wired AP 3 R9000 1Gb LAN
Test Bed R7800 1Gb LAN OpenWRT Kong
download1.dd-wrt.com/dd-wrtv2/downloads/betas/ (Brain Slayer)
www.desipro.de/openwrt/ (Kong's)
YAMon usage-
www.monitoring.com/manualInstall.php
ddaniel51
DD-WRT Guru


Joined: 19 Feb 2013
Posts: 1383

PostPosted: Fri Jun 26, 2015 1:07    Post subject: Reply with quote
I'll let you know what I find when I finish checking them out.

Dave

_________________
Segment 1 R9000 10Gb LAN, 1Gb ISP BS
Test Bed R9000 10Gb LAN
Wired AP 1 R9000 10Gb LAN
Wired AP 2 R9000 1Gb LAN
Wired AP 3 R9000 1Gb LAN
Test Bed R7800 1Gb LAN OpenWRT Kong
download1.dd-wrt.com/dd-wrtv2/downloads/betas/ (Brain Slayer)
www.desipro.de/openwrt/ (Kong's)
YAMon usage-
www.monitoring.com/manualInstall.php
Malachi
DD-WRT Guru


Joined: 17 Jul 2012
Posts: 7221
Location: Columbus, Ohio

PostPosted: Fri Jun 26, 2015 1:11    Post subject: Reply with quote
Ok. Check your pm.
_________________
I am far from a guru, I'm barely a novice.
ddaniel51
DD-WRT Guru


Joined: 19 Feb 2013
Posts: 1383

PostPosted: Tue Jun 30, 2015 16:51    Post subject: Reply with quote
One unit had the heatsink pad for the cpu displaced causing the cpu to overheat and literally explode.
Permanent crispy critter.

Still waiting for power supply and antennas for the other.

Dave

_________________
Segment 1 R9000 10Gb LAN, 1Gb ISP BS
Test Bed R9000 10Gb LAN
Wired AP 1 R9000 10Gb LAN
Wired AP 2 R9000 1Gb LAN
Wired AP 3 R9000 1Gb LAN
Test Bed R7800 1Gb LAN OpenWRT Kong
download1.dd-wrt.com/dd-wrtv2/downloads/betas/ (Brain Slayer)
www.desipro.de/openwrt/ (Kong's)
YAMon usage-
www.monitoring.com/manualInstall.php
Malachi
DD-WRT Guru


Joined: 17 Jul 2012
Posts: 7221
Location: Columbus, Ohio

PostPosted: Tue Jun 30, 2015 18:14    Post subject: Reply with quote
Wow. I didn't think to look there. That's the one that didn't power up?
_________________
I am far from a guru, I'm barely a novice.
ddaniel51
DD-WRT Guru


Joined: 19 Feb 2013
Posts: 1383

PostPosted: Tue Jun 30, 2015 20:10    Post subject: Reply with quote
Malachi wrote:
Wow. I didn't think to look there. That's the one that didn't power up?


Yes, I didn't attempt to power it up myself. I used an ohm meter to check the power circuits and found them shorted. I then went looking for the short.

Dave

_________________
Segment 1 R9000 10Gb LAN, 1Gb ISP BS
Test Bed R9000 10Gb LAN
Wired AP 1 R9000 10Gb LAN
Wired AP 2 R9000 1Gb LAN
Wired AP 3 R9000 1Gb LAN
Test Bed R7800 1Gb LAN OpenWRT Kong
download1.dd-wrt.com/dd-wrtv2/downloads/betas/ (Brain Slayer)
www.desipro.de/openwrt/ (Kong's)
YAMon usage-
www.monitoring.com/manualInstall.php
Malachi
DD-WRT Guru


Joined: 17 Jul 2012
Posts: 7221
Location: Columbus, Ohio

PostPosted: Tue Jun 30, 2015 21:27    Post subject: Reply with quote
Greek to me. Lol
_________________
I am far from a guru, I'm barely a novice.
Display posts from previous:    Page 1 of 1
Post new topic   Reply to topic    DD-WRT Forum Forum Index -> Broadcom SoC based Hardware All times are GMT

Navigation

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You can attach files in this forum
You can download files in this forum