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ICOM A1 & A2 & NEXT Quality (NEW PCB PICTURES!)
30-01-2019, 02:45 AM,
(This post was last modified: 30-01-2019, 02:47 AM by B1257.)
Post: #61
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RE: ICOM A1 & A2 & NEXT Quality (NEW PCB PICTURES!)
(09-08-2018, 12:14 PM)willisodhiambo Wrote: Mine did this and after a while I lost ethernet. Soon it started loosing connection and eventually just went dead. I could still see IP address but could not connect. Red flashing system LED Did you ever read my post here? https://cartechnology.co.uk/showthread.php?tid=10203&pid=105899#pid105899 The MICREL chip must be cooled too (3 port layer 2 managed switch), not only the CPU. Both chips will run out of max temps specs if you´re programming longer sessions. (check the web for datasheets of both chips, you will find max operation temp inside and what type of grade they are. CPU Freescale Semiconductor Data Sheet, Technical Data of MPC5200B and MICREL KSZ8893MQL/MBL layer 2 managed switch) In my link you will find a sketchup file with dimensions for the heatsink and the way I made it. After the mod I checked operation temps with a laser thermometer to verify how it was working. The heatsink high inside is important in the way that it has contact to the housing, so the complete case will work as a cooling element. The quality of the clone (with WIFI in 2015) was ok, but I resoldered the MICREL and some more parts with the Weller SMD reflow station. No problems since that time, mod was made in 2015. Meanwhile you can buy the genuine NEXT head (only the head) for about 470 Euros. Regards, B1257 |
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Reputation: +1 - bmwadriatic [+1] | |||
30-01-2019, 09:46 AM,
Post: #62
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RE: ICOM A1 & A2 & NEXT Quality (NEW PCB PICTURES!)
What about this with heat sink plate:
https://www.aliexpress.com/item/Multi-La...81279.html For me long sessions are not so interesting, i only want to update some dde and egs for example a few times a year. |
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