Author Topic: REVIEW: Dianyang Technology CA10 Circuit Board Thermal Analyzer - Repair / R&D (Read 20505 times)

Fraser · « **Reply #75 on:** July 08, 2021, 08:42:13 pm »

And now for something completely different ! ........ Insects and invertebrates under the CA-10 camera

First an Ant, fresh from the garden.....

Size: Pretty small ! Approx 4mm nose to tail
The bottle cap that I am using to contain the insects and invertibrates has an outside diameter of 39.5mm

Fraser · « **Reply #76 on:** July 08, 2021, 08:47:57 pm »

Now a Woodlouse, also fresh from under a plant pot in the garden

Look at the detail that is seen in the antennae and legs plus some video of him in action !

Size of Woodlouse : approx 10mm nose to tail
The bottle cap that I am using to contain the insects and invertibrates has an outside diameter of 39.5mm

Fraser · « **Reply #77 on:** July 08, 2021, 08:50:00 pm »

A Beetle is next under the CA-10

There is video of this chap as well

Size: Beetle is approx 10mm from nose to tail.
The bottle cap that I am using to contain the insects and invertibrates has an outside diameter of 39.5mm

Fraser · « **Reply #78 on:** July 08, 2021, 08:51:19 pm »

Beetle videos......

Fraser · « **Reply #79 on:** July 08, 2021, 09:27:54 pm »

Back to Electronics

First a simple Thomson USB ADSL broadband modem that is in standby as I have not installed its driver. Note the hottest component on the PCB is a small regulator. Also note the thermal energy visible from a SMT resistor and PCB track feeding the regulator. I have applied the range of available colour Palettes to show how they display this simple scene. Look at picture 8689 for a high contrast Palette that really highlights the PCB track heating

Remember... this is a working modem that is just plugged into a USB port and it is effectively in standby .... yet you can see a regulator working quite hard and a PCB track feeding it being clearly imaged through its thermal emissions. The CA-10 is certainly nice and sensitive. Image noise levels are excellent.

Fraser · « **Reply #80 on:** July 08, 2021, 09:29:04 pm »

Screen grabs of DYTSpectrumOwl whilst looking at the modem PCB plus a VL image of the PCB

Fraser · « **Reply #81 on:** July 08, 2021, 09:33:08 pm »

Next, a Serial to Ethernet converter. It is powered but inactive.

Fraser · « **Reply #82 on:** July 08, 2021, 09:34:57 pm »

Some screen grabs of DYTSpectrumOwl whilst looking at the Serial Ethernet adapter plus VL images of the PCB....

Fraser · « **Reply #83 on:** July 09, 2021, 01:20:02 pm »

Time to look at a hard disk drive PCB and compare a good and faulty unit.

I have chosen an older IDE hard disk as it has all teh components visible on the underside. If a hard disk has all the components on teh reverse side where they cannot be viewd, you will need to remove the PCB and use extension cables to permit testing. Necessity is the mother of invention

In teh images taht follow, I have placed regions of interest around the main IC's that are generating thermal energy, took reference images and then swapped out the reference hard drive for the suspect unit. It was easy to align teh PCB of the suspect drive using the ROI boxes. The temperatures were automatically tracking the highest temperatures in each ROI. I was limited to 3 ROI's on the image so added a spot temperature on another IC to monitor its temperature.

So what was the result of the test ? Well you will see in the images that follow. I have produced numerous images of teh reference hard disk drive and tried the different Palettes to show how they portray the PCB. The suspect hard disk was then tested and it was immediately obvious that there was a significant difference...... the platter spindle motor driver IC was not getting hot, as it did on the reference drive. Even without the reference drive it would be obvious that the motor driver was not doing any work. With this knowledge the repair tech would know ro check the power rails to the motor driver IC and also the condition of the motor windings. Another fault i have seen with the motor driver IC is very high temperature when the IC fails. I have seen this most often when the hard disk drive has been exposed to an over-voltage event.

The suspect drive has an open circuit motor winding so would not be repairable outside a specialist data recovery lab in most cases.

A note about teh first two images..... in the first image I was next to teh PCB so some of my and the cameras radiated heat might be reflected off of reflective surfaces like solder and shiny metal. In the second image I placed my hand next to the camera above the PCBA and the thermal radiation from my hand acts like an illuminator that highlights solder joints etc

This effect can confuse those new to thermal imaging as relatively cool solder joints can appear 'hot' but this is a false 'hot spot'.

Fraser

Fraser · « **Reply #84 on:** July 09, 2021, 01:25:56 pm »

Hard disk continued.....

Fraser · « **Reply #85 on:** July 09, 2021, 01:28:57 pm »

Hard Disk continued......

Fraser · « **Reply #86 on:** July 09, 2021, 01:30:48 pm »

Hard Disk continued.....

Fraser · « **Reply #87 on:** July 09, 2021, 01:32:34 pm »

Hard disk continued.....

Fraser · « **Reply #88 on:** July 09, 2021, 01:38:37 pm »

The suspect hard disk drive with its motor drive IC clearly not working or not driving a load......

I include a reference (good drive) in the first image to compare against.... spot the major difference

Dianyang · « **Reply #89 on:** July 15, 2021, 08:32:49 am »

Hi,

Today I uploaded one video to Youtube, the link is below,

https://youtu.be/8ZH_afFHj3Q

This video is to show the user how to use "comparison" to quick locate the defect on PCBA.

The defect PCBA is the display always flash, so I connected all the components as the good one, then power on the two boards at the same time, after power on for few seconds, we found the power IC temperature is very high, finally it could reach 80°C, it maybe the power IC soldering issue, I've forward this information to the hardware engineer, he will know the final result.

Adel@dianytech.com

Fraser · « **Reply #90 on:** July 19, 2021, 03:16:14 pm »

When I get a new piece of equipment, I often buy accessories for it to make it more versatile. The CA-10 is no different !

It should be said that there is nothing wrong or wanting with teh excellent DianYang CA-10 camera head stand but I just wanted other optionsfor mounting the camera head in case of need. I attach some pictures of accessories that I have bought for the CA-10 kit. With the superb Latitude articulated arm, I now have most 'bases' covered

By way of a guide to the pictures, I purchased a nice quality gooseneck microphone stand. This stand has a 3/8" male thread on its gooseneck. I added a 3/8" Female to 1/4" male thread adapter to match the needs of the CA-10 camera arm. I wanted some form of clamp that could be attached to the gooseneck or other mounting sustems to hold the CA-10 head arm. I first bought some neat mini photographic clamps that do grip the 12mm CA-10 head arm. I then bought a "SmallRig" mount that is designed for SmallRig 15mm poles. I used a short piece of 15mm OD clear plastic tube (12mm ID) to permit gripping of the 12mm CA-10 arm in the 15mm SmallRig clamp. It works well

I already had some decent ball mounts that may also be used with the Gooseneck or just its heavy base.

I have various thread adapters etc. to adapt the CA-10 head arm to other mouting systems.

Fraser

Fraser · « **Reply #91 on:** July 19, 2021, 03:17:43 pm »

Continued...

Fraser · « **Reply #92 on:** July 19, 2021, 07:18:31 pm »

A couple of other accessories I bought for my CA-10 kit...... a set of four USB-C cables of different lengths and a pair of 44mm plastic lens caps. One to use as a lens cap and the other may be used as a push-on mount for a supplementary thermal microscope lens. The USB cables are 0.5m, 1.0m, 2.0m and 3.0m in length

Nice quality and not expensive from Amazon.

Fraser

Fraser · « **Reply #93 on:** July 19, 2021, 07:23:48 pm »

I used the gooseneck stand with the CA-10 this evening to see how it performs with the SmallRig clamp. I needed some thermal images of a thermal camera that I am working on at the moment and the combination of gooseneck stand, SmallRig clamp and CA-10 camera head worked perfectly. I will upload the thermal images collected from test later. The CA-10 immediately showed me that the cameras microprocessor is not running, or at least it is not accessing the SDRAM.

Fraser · « **Reply #94 on:** July 19, 2021, 07:49:43 pm »

As promised, the thermal images from the CA-10 camera system that I used this evening to look at a faulty Amber Radaiance 1 cooled thermal imaging camera. The camera has a working cooler but shows no other signs of life. Fortunately I have a working Radiance 1 camera so I compared the imagery taken from the two units. I was looking for the obvious and found it immediately. Whilst the main 5V regulator is running at the correct temperature and is supplying 5V, the processor in the faulty unit appears to be dormant and is not accessing the SDRAM. More diagnostic work will follow but I was interesetd to see the difference in thermal profile between the two units.

Pictures follow.

Fiirst the images from the working camera as a baseline reference.

Fraser · « **Reply #95 on:** July 19, 2021, 07:51:43 pm »

Now the faulty unit.....

There is a row of SDRAM along the top of the processor PCB. In the faulty unit, all SDRAM is inactive.

Fraser · « **Reply #96 on:** July 19, 2021, 07:54:29 pm »

A mix of the good and faulty unit images with the good reference images first and the faulty cameras images second.

The SDRAM on the faulty unit is inactive, as stated, but there is another IC on the faulty unit that is getting warmer than that of the good reference unit. I shall investigate that IC further in case it is under stress or has failed.

Fraser · « **Reply #97 on:** July 20, 2021, 04:04:03 pm »

Never one to ignore a bargain, I saw a faulty Manfrotto lightweight tripod on eBay the other day. It has a faulty ball head. I saw that as the perfect candidate for a dedicated CA-10 tripod

I can fit a SmallRig clamp to hold the CA-10 head assembly. This tripod also provides the 'inverted' mount low level mode of operation. All for £5.50

and the tripod arrived today. It looks new but the tripod mount thumb screw is missing. No other damage as all. This pretty much completes my CA-10 'special mount' options

Fraser

TheAmmoniacal · « **Reply #98 on:** July 20, 2021, 04:20:41 pm »

Where can I buy this product? How much is it?

Fraser · « **Reply #99 on:** July 20, 2021, 04:55:39 pm »

I suggest that you send an email to Adel Chai (Sales Manager) at the following email address :

sales@dianytech.com

In your email include the fact that you are a member of the EEVBlog forum and hopefully he will respond quickly with a quote for you.

Dianyang Technology are actively searching for Western sales agents for their products but I do not have details of any yet.

The price is less than $800 but I cannot provide an exact price.

https://www.dyt-ir.com/chinese-professional-thermal-camera-sensor-ca10-pcb-circuit-board-thermal-analyzer-dianyang-product/

Fraser


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Author Topic: REVIEW: Dianyang Technology CA10 Circuit Board Thermal Analyzer - Repair / R&D (Read 20505 times)

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