No Liveview - Broken component on Mainboard - Black covered piece (Crystal/ Quratz?)

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Hello everyone

QUESTIONs:
What is the broken Part?
Where can I find the replacement part?

Context and background information:
Last year I crashed my P3P into a tree... My gimbal broke into pieces and I had to repair it.
The Drone works again, can fly, has a functional gimbal and can record Videos and take Images to the SD card.
BUT I have no live view (yes I tested different phones/ Ipads/ changed all the wires/ made every possible software up- or downgrade and so on).
After inspecting the gimbal mainboard, I discovered a little crushed component. During the crash the yaw Arm must have pressed against the mainboard causing the damage (as shown in the images blow).

What I know:
According to this dji forum post Gimbal mainboard damage it is a Quartz resonator which is most probably responsible for the coding of the (low res) 1080p transmission signal.
The Part is described as a "long, plastic covered metal part, 5 or 6 pins; quartz oscillator?" in this very detailed documentation of the gimbal mainboard (o-gs/dji-firmware-tools). I can only see 4 pins but I assume it is the same part.
I measured the length and width of the Part (approx. 7mm by 1.5mm) and found a couple of possible replacement parts but have no clue if the values are correct and which of the parts is the right one. https://mou.sr/2wVa8B9


If you have any advice or more information I would be happy to hear from you.
 

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Yeah, I wonder what that part is.
Quartz osc is actually quite rudimentary component - there's just a miniature a tuning-fork inside, made of quartz crystal. So if it is damaged, you may try to just open it and look inside.
I was searching for this part in the past, but wasn't able to identify it as well.

This is definitely not the usual cause of no live feed. I would treat the relation to long part as uncertain. To make sure this part isn't used for something else, you could de-solder it, and check whether everything other that live feed still works.

Here is the usual diagnosis of no live feed:

Note that just below the crushed part, there's NAND chip for DaVinci (the one with sticker). It is a delicate part, and might stop working without visible damage.
 
Yeah, I wonder what that part is.
Quartz osc is actually quite rudimentary component - there's just a miniature a tuning-fork inside, made of quartz crystal. So if it is damaged, you may try to just open it and look inside.
I was searching for this part in the past, but wasn't able to identify it as well.

This is definitely not the usual cause of no live feed. I would treat the relation to long part as uncertain. To make sure this part isn't used for something else, you could de-solder it, and check whether everything other that live feed still works.

Here is the usual diagnosis of no live feed:

Note that just below the crushed part, there's NAND chip for DaVinci (the one with sticker). It is a delicate part, and might stop working without visible damage.

Hello quaddamage
thank you for your qick reply. I followed the steps given in your diagam but sill cant fix it.
I followed the diagram to the point at which I had to identify the broken component in the update log txt file.
Sadly I wasn't able to identify anny errors, maybe you could have a look.

(The cable between the gimbal and the OFDM Module got already replaced)

Code:
 [00037305]Delete history success.

[00037710]========== 2018.07.27 12:17:52. boot(2) ============
[00037825]Packet [C:\P3X_FW_V01.11.0020.bin] detected, card sn [0xb1620ad3].
[00037942]Packet upgrade start...

[00038058]Packet checking...
[00038171]Packet vlink 01.11.0020 <-> 01.11.0020.
[00038276]Record vlink 01.11.0020 <-> 01.11.0020 (flow = 0).
[00038397]Done.

[00038505]Version checking[1]...
[00012799]========== remo-con disconnect. boot(15) ============
[00012920]Packet [C:\P3X_FW_V01.11.0020.bin] detected, card sn [0xb1620ad3].
[00013039]Packet upgrade start...

[00013151]Packet checking...
[00013246]Packet vlink 01.11.0020 <-> 01.11.0020.
[00013345]Record vlink 01.11.0020 <-> 01.11.0020 (flow = 0).
[00013443]Done.

[00013543]Version checking[1]...
[00013671][03 06][00] v2.4.20.50 -> v2.4.20.50
[00013791][03 05][00] v34.2.0.9 -> v34.2.0.9
[00013892][04 00][00] v1.48.0.0 -> v1.48.0.0
[00014071][11 00][00] v1.8.0.0 -> v1.8.0.0
[00014255][11 01][00] v1.8.0.0 -> v2.0.0.33, firmware v1.8.0.0 not support.
[00014400][11 01][00] v1.8.0.0 -> v2.0.0.33
[00014544][12 00][00] v1.12.0.0 -> v1.12.0.0
[00014679][12 01][00] v1.12.0.0 -> v1.12.0.0
[00014835][12 02][00] v1.12.0.0 -> v1.12.0.0
[00014990][12 03][00] v1.12.0.0 -> v1.12.0.0
[00015181][15 00][00] v1.1.2.0 -> v1.1.2.0
[00015320][17 00][00] v1.1.1.7 -> v1.1.1.7
[00015505][17 01][00] v1.0.2.7 -> v1.0.2.7
[00015621][19 00][00] v1.0.8.96 -> v1.0.8.96
[00015715][01 00][00] v1.32.5432 -> v1.32.5432
[00015821][01 01][00] v1.32.5432 -> v1.32.5432
[00015926][08 00][00] v0.13.0.7 -> v0.13.0.7
[00016062][09 00][00] v4.1.0.0 -> v4.1.0.0
[00016166]Packet upgrade cancelled at version checking.



[00014818]========== remo-con disconnect. boot(15) ============
[00014922]Packet [C:\P3X_FW_V01.08.0080.bin] detected, card sn [0xe14e3c65].
[00015030]Packet upgrade start...

[00015137]Packet checking...
[00015240]Packet vlink 01.08.0080 <-> 01.07.0060.
[00015341]Record vlink 01.11.0020 <-> 01.11.0020 (flow = 6).
[00015593]Packet upgrade failed at packet checking.

Thank you
 
Last edited:
Sadly I wasn't able to identify anny errors, maybe you could have a look.

I see no issues, though I'm not really sure whether the info about module versions is recent..
After seeing your logs, I have a suspicion that putting too old firmware does not cause modules versions listing.
That would mean a mistake in the diagnosis graph.

Could you please try putting file with your current firmware (P3X_FW_V01.11.0020.bin) on the card?
Then paste the log again.
 
Hello everyone

QUESTIONs:
What is the broken Part?
Where can I find the replacement part?

Context and background information:
Last year I crashed my P3P into a tree... My gimbal broke into pieces and I had to repair it.
The Drone works again, can fly, has a functional gimbal and can record Videos and take Images to the SD card.
BUT I have no live view (yes I tested different phones/ Ipads/ changed all the wires/ made every possible software up- or downgrade and so on).
After inspecting the gimbal mainboard, I discovered a little crushed component. During the crash the yaw Arm must have pressed against the mainboard causing the damage (as shown in the images blow).

What I know:
According to this dji forum post Gimbal mainboard damage it is a Quartz resonator which is most probably responsible for the coding of the (low res) 1080p transmission signal.
The Part is described as a "long, plastic covered metal part, 5 or 6 pins; quartz oscillator?" in this very detailed documentation of the gimbal mainboard (o-gs/dji-firmware-tools). I can only see 4 pins but I assume it is the same part.
I measured the length and width of the Part (approx. 7mm by 1.5mm) and found a couple of possible replacement parts but have no clue if the values are correct and which of the parts is the right one. SMD/SMT 7 mm x 1.5 mm Quarze | Mouser Deutschland


If you have any advice or more information I would be happy to hear from you.


I have approximately a dozen main boards with this component damaged just like your photo. I believe it is a vital component in the video circuitry and I have tried several times, (unsuccessfully), to replace it. It gets damaged in a crash when the yaw arm smashes into the plate/cover just above this component. It is "hooked" into the circuit board and difficult to see past the solder. I could never get it loose, even with solder removed. I know you didn't want to hear this, but.... When someone finds a way to replace it, I will be next in line, so I can restore these boards.
 
Maybe?

Dimensions match, general look matches, just no idea how to decode symbols at top.

EDIT: Yes, that's either MC-146 or its knock-off.. Epson marks their crystals with 4 characters.
Here are all frequencies the original Epson devices can have:
 
Last edited:

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