Identifying components from CALLER ID device...

[Chaos Master]

I opened a dead caller ID device today, and started to look for
datasheets of components. I've found of the main DTMF IC (HT9170,
Holtek), but I can't identify what are those:

CNR070271K (ZN1 - looks like either Zener or MOV) - Google gives 0
results
2A104K (capacitor? not electrolytic, methinks, as it's not round)
F-358M (the M may as well be a /1 as it's a really tiny surface mount
part).

PS: I am accessing from Google Groups as news.cis.dfn.de seems to be
shot (refuses passwords). Duh.

 

[Goran Larsson]

2A104K (capacitor? not electrolytic, methinks, as it's not round)

A simple 100nF capacitor. The 104 is 1 and 0 followed by four 0 and
with pF as the unit.

F-358M (the M may as well be a /1 as it's a really tiny surface mount
part).

Probably a 3.58MHz ceramic oscillator or crystal.

PS: I am accessing from Google Groups as news.cis.dfn.de seems to be
shot (refuses passwords). Duh.

Are you a participant of the "DFNNetNews" project (DNN)? If not, you
should not be using news.cis.dfn.de any more. As announced in July 2003
the news.cis.dfn.de server has now been split and you should probably
be using the news.individual.net server.

See < http://news.cis.dfn.de/serversplit-en.html >.

 

[Chaos Master]

A simple 100nF capacitor. The 104 is 1 and 0 followed by four 0 and
with pF as the unit.

Thanks. I remembered seeing this "syntax" for capacitor names in a
clock radio, but I didn't remember how it was correct.

Probably a 3.58MHz ceramic oscillator or crystal.

Exact. Reading the datasheet for HT9170 (Holtek IC, main DTMF decoder)
it became clear.

Are you a participant of the "DFNNetNews" project (DNN)? If not, you
should not be using news.cis.dfn.de any more. As announced in July 2003
the news.cis.dfn.de server has now been split and you should probably
be using the news.individual.net server.

I was using news.cis.dfn.de 'til Monday (16/02). I've sent a
"subscription request" to the news.individual.net folks but nah,
nothing. I had my n.c.dfn.de account since 2001.

 

[Goran Larsson]

I was using news.cis.dfn.de 'til Monday (16/02). I've sent a
"subscription request" to the news.individual.net folks but nah,
nothing. I had my n.c.dfn.de account since 2001.

You don't need to resubscribe. Just change the address from
news.cis.dfn.de to news.individual.net. They probably hasn't
answered because they are drowning in requests from users that
haven't read the announcement or understood it.

 

[Chaos Master]

Eu não acredito que Goran Larsson escreveu:

You don't need to resubscribe. Just change the address from
news.cis.dfn.de to news.individual.net. They probably hasn't
answered because they are drowning in requests from users that
haven't read the announcement or understood it.

It was because I subscribed using my old e-mail account.
I changed the server and it seems to work OK right now.
At least I can read offline using Gravity!

--
by Chaos Master® - MSN: [email protected]

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Na-chaered palan-diriel o galadhremmin ennorath,
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