- Joined
- Oct 7, 2013
- Messages
- 1,459
- Reaction score
- 994
- Location
- Shenzhen
- Country
- China
- Dash Cam
- mini0806, mini0806S, mini0903/0905, mini0906, mini0808
recently we got some feedbacks of strange problems on defective rear camera; we confirmed the problem source now: the "characteristic impedance" of some extending cable is out of tolerance.
the reason should be the shilding film inside cable is too loose or too tight, which made "characteristic impedance" changed from design value 100Ω. the "high frequency characteristic impedance" is different with resistance which is easier to measure.
In our test and inspection here, the probability of the defective cable is around 3% in last batch.
If your camera have any problem below, please contact your distributor or me for a new free extending cable.
(the distributors will have oversea stock soon; we only have local warehouse here in China)
1, rear camera image flickers irregular;
2, rear camera image show purple / magenta stripes irregular;
3, rear camera image freeze irregular;
4, rear camera connect & disconnet irregular when power on;
5, whole camera freeze if rear cam connected (no button function, LED may work), but work well if rear cam not connected;
![1.jpg 1.jpg](https://dashcamtalk.com/forum/data/attachments/34/34872-62fc2b84884939c80709b5bccf4b2b46.jpg?hash=YvwrhIhJOc)
If your camera have any problem above, please contact your distributor or me for a new free extending cable.
If the new extending cable can't solve your problem, please contact your distributor or me for a new exchange.
we are quite sorry for the defective components, we will take the responsibility for warranty.
the new extending cables will be 100% inspected in factory.
Sincerely,
Rayman
the reason should be the shilding film inside cable is too loose or too tight, which made "characteristic impedance" changed from design value 100Ω. the "high frequency characteristic impedance" is different with resistance which is easier to measure.
In our test and inspection here, the probability of the defective cable is around 3% in last batch.
If your camera have any problem below, please contact your distributor or me for a new free extending cable.
(the distributors will have oversea stock soon; we only have local warehouse here in China)
1, rear camera image flickers irregular;
2, rear camera image show purple / magenta stripes irregular;
3, rear camera image freeze irregular;
4, rear camera connect & disconnet irregular when power on;
5, whole camera freeze if rear cam connected (no button function, LED may work), but work well if rear cam not connected;
![2.jpg 2.jpg](https://dashcamtalk.com/forum/data/attachments/34/34873-e50cc6c856ae05ac65d237647d47751c.jpg?hash=5QzGyFauBa)
![1.jpg 1.jpg](https://dashcamtalk.com/forum/data/attachments/34/34872-62fc2b84884939c80709b5bccf4b2b46.jpg?hash=YvwrhIhJOc)
If your camera have any problem above, please contact your distributor or me for a new free extending cable.
If the new extending cable can't solve your problem, please contact your distributor or me for a new exchange.
we are quite sorry for the defective components, we will take the responsibility for warranty.
the new extending cables will be 100% inspected in factory.
Sincerely,
Rayman