MESA 7i76 burnout
- HalaszAttila
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						22 Mar 2017 13:10				#90069
		by HalaszAttila
	
	
		
			
	
			
			 		
													
	
				MESA 7i76 burnout was created by HalaszAttila			
			
				Hello,
i am in big trouble. My lathe is with mesa 7i92 + 7i76. And when i turned ON the machine, one of the outputs octal driver ICs (NCV7608) is exploded.
The machine is works before, and i dont know the reason of failure.
I desoldered the exploded IC, and tested with just one, the Linuxcnc starts and dont show error message, can read the inputs, but the outputs (0-7) does`t works.
Can this card work with just one output driver IC, or PIC can detect the missing I2C device ? or maybe the cards PIC mcu broken?
					i am in big trouble. My lathe is with mesa 7i92 + 7i76. And when i turned ON the machine, one of the outputs octal driver ICs (NCV7608) is exploded.
The machine is works before, and i dont know the reason of failure.
I desoldered the exploded IC, and tested with just one, the Linuxcnc starts and dont show error message, can read the inputs, but the outputs (0-7) does`t works.
Can this card work with just one output driver IC, or PIC can detect the missing I2C device ? or maybe the cards PIC mcu broken?
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- PCW
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						22 Mar 2017 19:56				#90085
		by PCW
	
	
		
			
	
	
	
			 		
													
	
				Replied by PCW on topic MESA 7i76 burnout			
			
				Both output chips share the same SPI interface CLK / DIN / DOUT signals
so if one of these pins got damaged the other output chip would not work
Its also possible that the PIC firmware senses a problem as a overload has not enabled the chips
			
					so if one of these pins got damaged the other output chip would not work
Its also possible that the PIC firmware senses a problem as a overload has not enabled the chips
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						22 Mar 2017 20:07				#90087
		by HalaszAttila
	
	
		
			
	
			
			 		
													
	
				Replied by HalaszAttila on topic MESA 7i76 burnout			
			
				Ok i will try to buy and change two ICs.
I know that the warranty does`t active for these failures, but just to interest does anybody repair mesa cards?
I have broken 7i77, 7i84, and now one 7i76.
Can i send for repair, i am from Europe (Serbia).
					I know that the warranty does`t active for these failures, but just to interest does anybody repair mesa cards?
I have broken 7i77, 7i84, and now one 7i76.
Can i send for repair, i am from Europe (Serbia).
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						01 Aug 2019 20:41				#141146
		by svajus123
	
	
		
			
	
			
			 		
													
	
				Replied by svajus123 on topic MESA 7i76 burnout			
			
				Hello! If it is still actual I can repair these boards. Including fpga replacement and programming.			
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						09 Aug 2019 07:34				#141719
		by HalaszAttila
	
	
		
			
	
			
			 		
													
	
				Replied by HalaszAttila on topic MESA 7i76 burnout			
			
				Hello,
yes it is actual yet. I have one 7i77 and one 7i84 broken cards.
Where are you from?
					yes it is actual yet. I have one 7i77 and one 7i84 broken cards.
Where are you from?
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						09 Aug 2019 12:13				#141752
		by tommylight
	
	
		
			
	
			
			 		
													
	
				Replied by tommylight on topic MESA 7i76 burnout			
			
				He is from Lithuania.
@Attila
Did i get an e-mail from you a while back about an Elumatec ?
					@Attila
Did i get an e-mail from you a while back about an Elumatec ?
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						09 Aug 2019 13:59				#141778
		by HalaszAttila
	
	
		
			
	
			
			 		
													
	
				Replied by HalaszAttila on topic MESA 7i76 burnout			
			
				@svajus123
Can you give me your email?
@tommylight
No i did n`t contact you about Elumatec machine.
					Can you give me your email?
@tommylight
No i did n`t contact you about Elumatec machine.
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						09 Aug 2019 16:24				#141793
		by svajus123
	
	
		
			
	
			
			 		
													
	
				Replied by svajus123 on topic MESA 7i76 burnout			
			
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						09 Aug 2019 17:27				#141798
		by tommylight
	
	
		
			
				
OK.
					
	
			
			 		
													
	
				Replied by tommylight on topic MESA 7i76 burnout			
			@tommylight
No i did n`t contact you about Elumatec machine.
OK.
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