Hy. I want to repair and if you help me, maybe the 3808 will work again. I was curious what the other two colleagues did. If they changed the 1u-3799 and the problem still persist, or the 3799 is the problem. Thanks.
Post by mastertech on Nov 22, 2016 11:27:37 GMT -5
Well normally we would trouble shoot this in an orderly fashion but in this case I want you to jump ahead and check something first. Go to the Digital board (1u-3799) and locate ic959 and remove it. Then go back and test the voltage on CW118, pin 3.
i will. but 3.3v derives from scpu5v and instead 5v the scpu5v have 2.5v (pin 14 - pin15 at cw 159). scpu5v parts from tr715 found on 1u-3804-2 (1/2). the tr715 feed from master5v (and i mesured and have 5v). but tr715 it's trigger by tr714. tr 714 feeds from scpupower. i must veryfi scpupower
mastertech: Merry Christmas to you too. Not many holiday people around any more.
Dec 26, 2018 14:37:50 GMT -5
stridsvognen: Merry christmas everybody...
Dec 24, 2018 19:10:58 GMT -5
mastertech: Sounds nice. Would love to have many more pictures.
Oct 20, 2018 20:31:04 GMT -5
greg1292: Greetings from Denmark. Lots of ideas knowledge and bucket list. Gabor boards looking very nice indeed
Oct 20, 2018 16:38:34 GMT -5
kevin5418: Anyone has the Velodyne hgs12bg MPS board schematic ? thank U
Oct 6, 2018 0:58:34 GMT -5
mastertech: According to the SM ic711 must be installed with the firmware already in it. It can then later be upgraded. The correct ic is around 50 dollars. If you installed a blank ic it will not work.
Aug 19, 2018 20:01:39 GMT -5
ralph: Hello mastertech, sorry for the delay, if I replaced that IC, I was with short circuit, blocked the 3.3 volt regulator, put a new one but still do nothing, what could I do? Thanks for the reply
Aug 18, 2018 21:48:51 GMT -5
mastertech: Did you replace ic711?
Aug 12, 2018 18:55:42 GMT -5
mastertech: Just to clarify you replaced ic711 (STM32F101ZG), correct?
Aug 10, 2018 20:58:16 GMT -5
ralph: Hello, Mastertech, I'll send it to you
Aug 10, 2018 18:58:46 GMT -5
mastertech: I have no idea on the context of what you posted. Link me the manual and I can look it over.
Aug 8, 2018 20:05:37 GMT -5
ralph: This is what the manual says:
Aug 8, 2018 19:44:59 GMT -5
mastertech: Nope. That is only to update a preprogrammed CPU. It needs basic firmware just to function. Without that it does nothing. You most likely purchased a blank CPU. The service manual would be more specific but I do not have one for that model.
Aug 8, 2018 19:35:18 GMT -5
ralph: Hi, mastertech thanks for responding, but still without firmware Denon should appear information on-screen, so then update it via USB?
Aug 8, 2018 19:25:45 GMT -5
mastertech: Most likely has firmware.
Aug 8, 2018 18:13:28 GMT -5