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-   -   Technicolor TG789vac v2 (https://www.badcaps.net/forum/showthread.php?t=99516)

ERS 10-02-2021 04:59 AM

Technicolor TG789vac v2
 
Hi,

Does anyone have any schematics from this equipment? Component datasheets, anything!

Thanks!

stj 10-02-2021 05:33 AM

Re: Technicolor TG789vac v2
 
is it a router?

ERS 10-02-2021 05:45 AM

Re: Technicolor TG789vac v2
 
Quote:

Originally Posted by stj (Post 1074989)
is it a router?

Yes!

stj 10-02-2021 12:24 PM

Re: Technicolor TG789vac v2
 
cant find any info yet - technicolour are usually isp supplied junk that has other names on the outside though.

whats wrong with it?

ERS 10-02-2021 12:54 PM

Re: Technicolor TG789vac v2
 
Quote:

Originally Posted by stj (Post 1075040)
cant find any info yet - technicolour are usually isp supplied junk that has other names on the outside though.

whats wrong with it?

Actually it is not one unit, most likely, I will receive a batch of equipments to be rapaired and at this point I am researching the most common faulty components.

I already analized and found some, fixed with components from donor equipments that were tested OK, but the main problem here is that there are quite components that I cant find datasheets.

Thanks!

stj 10-02-2021 04:20 PM

Re: Technicolor TG789vac v2
 
main parts that fail in routers, electrolytic caps,
and eventually wifi chipsets.
if they have been in a storm then sometimes a transformer or network chip or related ceramic caps

unless they are very high spec - like VDSL2 with atleast 5 gigabit ethernet ports, they arent worth touching.
you can get 5 port VDSL2 routers that are OpenWRT compatable and still new in the box on ebay for about €15
i have a couple. :)

ERS 10-02-2021 05:13 PM

Re: Technicolor TG789vac v2
 
2 Attachment(s)
When it comes to Lan controller, Wifi controller and CPU, forget about it, BGA with profile needed! Not worth it!

Yes, most fixable parts are LAN port, all ports 1gigabit, dc plug, power button and some smd caps in short circuit.

The second picture, the power circuit, I think it is most likely a transistor, and in the first picture, it's the phone circuit, I think those components are some dc converters.

Anyway, both cases I can't get any datasheets

Any opinion is welcome!

Thanks

stj 10-03-2021 05:45 AM

Re: Technicolor TG789vac v2
 
what's printed on the part?

stj 10-03-2021 06:24 AM

Re: Technicolor TG789vac v2
 
so i found these:
https://openwrt.org/inbox/toh/technicolor/tg789vac_v2

https://www.choice.com.au/products/e...89vac-v2-iinet

read the comments section of the second link.
these things have a lot of issues!!


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