Recent content by vlammie

Thanks topper for putting this question in the right spot. I don't think there is a hardware problem with the LNB or the cable. I have a second receiver on the same disc, function without the described problem. After the echostar AD-3000-ip has heated up (half an hour) it functions okay...

Hi all My Echostar AD3000-IP freezes the picture when I start it up and when cold. After about an hour when the device is warm, I have no problems and the box operates okay. But when cold, it starts up okay, but after a couple of seconds or minutes, suddenly the picture freezes and the box...

Hi Justone Google translate can be very amusing indeed, but i find it very helpful in understanding at least something of a language i don't have any idea about. I live in the Netherlands so if i can be of any help, let me know. Vlammie

Hi Justone I have repaired some in past, and it can be a difficult job, if you don't know where to look. In the netherlands somebody is offering these PSU's on "Marktplaats" for 28 euro. May be this link wil help to get in touch with the quy, and he might be able to offer you a replacement for...

Most suspicious are of course C10 and C11. Use a good measuring device to measure capacitance and/or equivalent series resistance (ESR). Also TR1 could be the cause of your problems. All devices I have seen have a hotspot around R3. Isn't that spot may be the starting point of your problems'O'...

Hi David I have ordered some KA1H0565R for a reasonable price online in the US. Goto _www.bluestar-online.com However.... I thought this IC was broken in my SMPS, but it turned out that other components were defect. I would recommend to check other components also, before replacing IC1 and...

Hi Llew My SMPS broke down again. This time C10 shows a hard shortage. It blow the fuse. Lucky i have a spare SMPS now. Replaced it but then discoverd that the motor was not rotating in 1 direction. I got a "motor error". After investigation i discovered that a trace on the PCB runs close the...

Hi Llew Thanks for your tips for measuring elco's. ESR meters do not seem to be very common. I see a lot of home made devices in the internet. The values you get seem to be a little bit arbitrary. In fact you should now the manufacturers specification to be able to judge wetter or not a reading...

Hi Llew I finally have my AD3000 power supply working again. The problem was indead not on the primary side. I replaced IC1, but this did not solve the problem. I decided to solder out all the elco's on the secondary side and as you already suggested, some were bad. C23 was halve the original...

Check D5/R9 which provide the main Vcc voltage after turn-on. If this is missing, it could be causing the tripping. Be careful when checking this side of the supply though! Llew Hi Llew I will take care. I have been "shocked" in the past when I was young:-HoHo and also have blown up some...

Hi Llew Actually it does not make any difference if I load the 5VS or 5VD line. If i attach a 18 Ohm / 10 W resistor it already goes into hick-up mode. I have swapped several components now (IC3 with IC7, IC2 with IC6) just to see if one of these is bad. Without any succes however. Also...

Hi Llew My ad-3000ip has given up again recently. Again ticking sounds came out of the cabinet (and flickering display). I have investigated the power supply separately again. Turned out that I could not switch it On and Off with PCS line. Finaly replaced Q2 for a BC237 which solved this issue...

Hi Llew Thanks for your work on the schematic diagrams of the SMPS. I had recently updated my receiver with new software etc. and had it work again perfect for me. Until a tikking sound came out of the receiver. It turned out that the R3 had "soldered itself out of the Printed Wiring Board". I...