I am not a duck Posted February 14, 2007 Share Posted February 14, 2007 Use a few of these and get call backs caused by failure to pass power when the power pass port goes low resistance to earth. Not the only person here finding this, wondering if anyone else has come across it? They take anywhere from days to months to fail. (FMA suggests a couple of ideas, either construction method or component failure.) Link to comment Share on other sites More sharing options...
bellotv Posted February 15, 2007 Share Posted February 15, 2007 Use a few of these and get call backs caused by failure to pass power when the power pass port goes low resistance to earth.Not the only person here finding this, wondering if anyone else has come across it? They take anywhere from days to months to fail. (FMA suggests a couple of ideas, either construction method or component failure.) Had one recently as a matter of fact.Burnt out power injector.could measure from memory about 100 ohms on multimeter at socket end. Traced to splitter.replaced all ok. out of curiosity dismantled splitter and found leaky ceramic capacitor (it was very cooked and discoloured) This one was fitted by oposition \ In reality I have installed hundreds of gratz splitters and I accept this as a one off but perhaps there was a bad batch as you have had one Link to comment Share on other sites More sharing options...
I am not a duck Posted February 15, 2007 Author Share Posted February 15, 2007 Had one recently as a matter of fact.Burnt out power injector.could measure from memory about 100 ohms on multimeter at socket end.Traced to splitter.replaced all ok. out of curiosity dismantled splitter and found leaky ceramic capacitor (it was very cooked and discoloured) Ditto. 50 - 100Ω in my cases. Total about 5 to date. Annoying. At least can get the splitter replaced under warranty. Link to comment Share on other sites More sharing options...
beeblebrox Posted February 16, 2007 Share Posted February 16, 2007 I did a service call with Graetz one faulty last week but it was caused by the fact the customer's son had dropped a set of shelves on this splitter in a cupboard and smashed it to bits.... haven't seen any with power pass probs in recent times. Link to comment Share on other sites More sharing options...
bellotv Posted August 29, 2007 Share Posted August 29, 2007 Couldn't believe it. The exact same house as I was at 2 posts earlier nearly 8 months ago. Same bloody thing, cooked up ceramic cap in power pass section of 2 way splitter. Now this is only the second time I have had this But its the same house and another Graetz splitter. Weird ! This time no charge to customer and as second outlet was never to be used we decided to remove splitter . Will I change to another brand of splitter ?, Humm Link to comment Share on other sites More sharing options...
ranant Posted August 29, 2007 Share Posted August 29, 2007 Couldn't believe it.The exact same house as I was at 2 posts earlier nearly 8 months ago. Same bloody thing, cooked up ceramic cap in power pass section of 2 way splitter. Now this is only the second time I have had this But its the same house and another Graetz splitter. Weird ! This time no charge to customer and as second outlet was never to be used we decided to remove splitter . Will I change to another brand of splitter ?, Humm Ive experienced this as well.3 and 4 way have been ok Link to comment Share on other sites More sharing options...
mtv Posted August 29, 2007 Share Posted August 29, 2007 I've had faulty 2-way & 4-way. Only a couple, but in both cases, destroyed the power supply. Link to comment Share on other sites More sharing options...
bellotv Posted August 29, 2007 Share Posted August 29, 2007 In my case a power injector and masthead amp were used. Have any of you others had problems with/without power injectors.? Me thinks ceramic caps fitted don't like 22vac and fall over.Nasty little ceramics.should easily handle that !!! Link to comment Share on other sites More sharing options...
I am not a duck Posted August 30, 2007 Author Share Posted August 30, 2007 (edited) Me thinks ceramic caps fitted don't like 22vac and fall over.Nasty little ceramics.should easily handle that !!! Apparently a faulty batch of 2 ways. As most of my installs are mastheads, ended up getting about 10 failures. All with 24vdc plugpaks. None with 14vdc yet, maybe they will take longer to fail. Haven't had any now for a few months. Methinks perhaps the ceramics were a bad batch. btw thanks for the heads up on the Alcads that fail when they get cold. Have had 2 during a cold snap about 2 months ago, knew what it was straight away. Pity can't backcharge the supplier for consequential damages, though Edited August 30, 2007 by M'bozo Link to comment Share on other sites More sharing options...
bellotv Posted August 30, 2007 Share Posted August 30, 2007 thanks for the heads up on the Alcads that fail when they get cold. Have had 2 during a cold snap about 2 months ago, knew what it was straight away. Pity can't backcharge the supplier for consequential damages, though Apparently was due to robots not tightening screws enough and then due to PCB material having high thermal expansion/contraction I went off Alcads but have gone back to them as they have such low noise levels . Alcad have changed PCB material and so far so good. Link to comment Share on other sites More sharing options...
mtv Posted August 30, 2007 Share Posted August 30, 2007 The older Alcad amps with the push-in connectors were dismal. They seem to have their act together now, with better shielding and of course, F connectors. Like bellotv, I too find them a great performer, with low noise. Link to comment Share on other sites More sharing options...
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