Signal lost

[pixim]

Hello,

this morning my Jynxbox have no signal. None modification was made to my setting since two weeks...

Anybody can explain that???

Here is my setting:

Nimiq 4:
tuner: LNB1 (fixed)
LNB Freq: 11250
Transponder (1/32) 12224 V 21500
DiSEqc1.0: Port2
DiSEqc1.1: Disable
Legacy SW: Off
Legacy LNB OCS-DP
22K: Off
Polarity: Auto
Signal Intensity: 42%
Signal Quality: 42%

Thank you!

[hutch]

your Jynx may be overheating... pull the plug on your entire system... remove the cover &/or ad a laptop fan to the jynx... let it cool down then try... if you don't get signal then maybe your JB200 module has burnt out & needs to be replaced.

[billhiggs]

is there any way to test my jb200 module?

[hutch]

sure... find a free channel on 21500SR... if it works.. the JB2000 is working... if you get a low signal(below 50) then find a TP that is 20000SR.. you may need to pull the plug & pull the module out to get higher signal but if you do the JB200 is probably bad.

[Putski]

go to menu then Tools and System info... what does it say for RF/Slot 1 and RF/Slot 2 ???
if it says NULL in both slots
she be fried

[jvvh5897]

Here is an interesting post I found in a quick search:

Having had multiple failed JB200 modules I finally decided to take a look further into the failures I've experienced.

None of them had any shorted caps or diodes going on as previously stated.

I then decided to look closer at the source of the ridiculous heat under the glued on heatsink. I attempted to remove the heatsink to get some OEM information from what turns out to be a Broadcom sat tuner chip and the entire chip came off board WITHOUT ripping any pads or traces.

This is something that I've witnessed before on devices that attempt to use a minimal amount of solder to aid in the flexing of pins. It fails a lot.

I ended up reflowing the solder on the Broadcom chip on two boards and they are now currently working fine.

This is not an easy task for a hobbyist as the pins are pretty small. If you have the abilty and the correct tools such as magnification, a good iron like Metcal for SMT work, good flux, tiny diameter solder, go for it.

Another thing to note: The F connector on the back of these units are not of great quality and likely are introducing return loss, which is changing the impedance, and therefore killing that broadcom chip.

TLDNR: Even if you repair it I don't know how long it will last with that F connector.