Hi Friends I am new here Please Help My Box vu Solo4k tuner problem Problem is Not Tune Horizontal Tps Tuner output voltage only 11.8 voltage Number 2 problem Not Working on Discq Switch With out Discq only Vertical tps tune
Here you can find Solo4k volts measurement. https://jb8a8f8.com/support/index.php?attachments/vuplussolo4k-dc-voltage-measurements-jpg.921/
Thank you sir for reply .I also check voltage management this digram all voltage ok.only 2 voltage miss( D108).18volt and (106) 18 voltage miss My Question is 12 to 18volt convert Tuner ic Lnb26L?
D106 and D108 is one side of the tuner lnb connection, D105 and D130 is the other lnb connector, and could be low when it's not connected and or not be active when it's not has being set in the tuner A/B etc settings. Likewise, the receiver must be on a channel and selected from the measured LNB connection to see some action Q: LNB26L A: Yes it could be possible that a tuner no longer works properly when this is has some issues, but a damaged part as a bad diode, cap or coil or other part on the circuit could also be. The first thing I usually advise is to check the PSU to see if it does not collapse during use due to too low amperage. Because the tuner amp consumption is more than the rest of the receiver, and is therefore more likely to fail than the box itself. Or test it with another psu, preferably one that outputs at least 3amp or a bit higher. But make sure the polarization is correct, the center hole must be the plus side. But what I usually do first, because I have one, is to use a second tuner as a test to know if it is just the onboard tuner.
Yes sir, thank you very much, you explained in full detail I change new one orignal PSU Vu box but Same status
Q.Discq switch not operat this condition my question is this suction cpu problen It is possible .because Discq command comes from CPU it's possible
That's right, the CPU is involved in the switching and recognition of the tuner part, and although it is possible, it is often a problem with the tuner side. Maybe a problem with the 22kHz circuit, see the datasheet LNB26L pdf about the Diseqc switch for more information about it.
