Inssomniak
Premium
join:2005-04-06
Cayuga, ON
| reply to pnjunction
Re: Anyone know how to fix 2wires that wont sync?
said by pnjunction  :They'd be more trouble to fix than they're worth IMO unless it's something as simple as a blown cap. You'd also need some decent soldering skill/equipment to get anything other than a cap or resistor replaced. Considering the lack of schematics or proper diagnostic procedures and the retail cost of replacement parts, a few rounds of "swap-and-pray" could add up to the cost of a new unit in no time. Ya I know.. was just wondering if anyone put any time into it..
I can solder a 200 pin QFP microprocessor with off the shelf supplies in my basement, so replacing parts isnt a concern, but more of what mart might be bad, if its the whole frontend adsl chip then, ya not worth it. |
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An_Onymous
@teksavvy.com
| Typical things I would check for are the chips that are closest to any of the outside interfaces as they more likely get blown off first.
- DSL receiver/driver chips. These are interfacing directly to the phone line with minimum protections and I heard of several cases of damaged chips. There are some chances that you can buy these parts (Analog Devices, TI etc)
- Power Supply voltages. Probably okay if you can already talk to the digital side of the modem.
Beyond that, not a whole lot you can do as the main SoC is likely a BGA parts as least in the case of the ST-516 V6. |
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CanerisErik
Caneris
Premium,VIP
join:2007-10-03
Toronto, ON
| said by An_Onymous :
Beyond that, not a whole lot you can do as the main SoC is likely a BGA parts as least in the case of the ST-516 V6.
Some of us have access to BGA equipment 
--
Erik - Caneris - Internet solutions and more. |
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An_Onymous
@teksavvy.com
| Not like you can order the big SoC easily from the vendor easily or that replacing the BGA would make any economic sense for you.
I would recommending looking at the driver/receiver chips in your bone pile. That's the soic-8 right next to the sticker SB10A in picture (ST516V6). It should be very common froml the analog chip vendors were selling their DSL driver/receiver chips - fancy opamp parts.
You are looking at a $1 part and a 2 minutes replacement job. |
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Inssomniak
Premium
join:2005-04-06
Cayuga, ON
| said by An_Onymous :
Not like you can order the big SoC easily from the vendor easily or that replacing the BGA would make any economic sense for you.
I would recommending looking at the driver/receiver chips in your bone pile. That's the soic-8 right next to the sticker SB10A in picture (ST516V6). It should be very common froml the analog chip vendors were selling their DSL driver/receiver chips - fancy opamp parts.
You are looking at a $1 part and a 2 minutes replacement job.
The 2wire doesnt have such a chip. It has a 100 pin flat pack frontend chip (ST20184). It does the work for sync in a 2wire., Digital out is fed into the microprocessor, and vice versa. |
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An_Onymous
@teksavvy.com
| findchips.com claims that Arrow Electronic and America II might have some. It is pending end of life.
Datasheet:
»download.siliconexpert.com/pdfs/···0616.pdf
"E-ST20184,ST20184 & E-ST20196, ST20196 PRODUCT TERMINATION NOTICE"
»app.arrownac.com/aws/nac_epcn_vi···41517034 |
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