Door Buzzer/Intercom

[[email protected]]

The door buzzer/intercom system to my building stopped working. The
model number is 2000 by Jeron, installed in 1987. In anticipation of
this day, I e-mailed Jeron a few years back for a schematic and while
they were responsive to my query, they had no schematic available for
this model. They've moved on to things like retinal and fingerprint
scanning.

It's a basic system. The person outside hits the button for the
appropriate apartment and an annoying warble rings inside. You hit
the "Talk" button to communicate with the outside and then hit the
"Listen" button to hear their response. If you decide to let them in
you hit the "Door" button to buzz them in.

Does anyone have a schematc for this model or a website that goes over
a typical circuit? The last time we needed a fix, the transformer
went and we needed to get one custom wound so a schematic would be
particularly helpful. The whole thing is dead (intercom and door
buzzer) so the first place I'll look will be the power supply,
including the transformer.

Any and all help is appreciated.

Thanks,
Dave

 

[[email protected]]

OK. I popped the cover off the control panel outside to have a look.
At some point the control module was replaced with a Lee Dan PK-543.
Well it looks like they still make them if this is the problem. The
only other possible problem could be the transformer which kicks the
voltage down to 16 VAC to run the module.

Now here's a dumb question. Where would this transformer be located?
It's not behind the control panel outside. I looked around the
basement by the circuit breakers/cable/phone lines and couldn't find
it there either. Any suggestions where to look?

Thanks.

 

[bz]

[email protected] wrote in 27g2000hsf.googlegroups.com:

OK. I popped the cover off the control panel outside to have a look.
At some point the control module was replaced with a Lee Dan PK-543.
Well it looks like they still make them if this is the problem. The
only other possible problem could be the transformer which kicks the
voltage down to 16 VAC to run the module.

Now here's a dumb question. Where would this transformer be located?
It's not behind the control panel outside. I looked around the
basement by the circuit breakers/cable/phone lines and couldn't find
it there either. Any suggestions where to look?

Doorbell transformers are often located in the attic.







--
bz 73 de N5BZ k

please pardon my infinite ignorance, the set-of-things-I-do-not-know is an
infinite set.

[email protected] remove ch100-5 to avoid spam trap

 

[dBc]

Greetings..

Regarding:
"| Doorbell transformers are often located in the attic."

True! Also, all too often all but forgotten about as they create RFI
havoc for nearby radio amateurs / SWL etc.! Trying to get the neighbor
or business to be cooperative to replace this crude RF transmitter
can, and often IS, quite a challenge!

Usually brought to you by the sheer ignorance of a fellow home or
business owner that "didn't know" such things could ever happen..

Cheers,
Mr. Mentor



| [email protected] wrote in | 27g2000hsf.googlegroups.com:
|
| > OK. I popped the cover off the control panel outside to have a
look.
| > At some point the control module was replaced with a Lee Dan
PK-543.
| > Well it looks like they still make them if this is the problem.
The
| > only other possible problem could be the transformer which kicks
the
| > voltage down to 16 VAC to run the module.
| >
| > Now here's a dumb question. Where would this transformer be
located?
| > It's not behind the control panel outside. I looked around the
| > basement by the circuit breakers/cable/phone lines and couldn't
find
| > it there either. Any suggestions where to look?
|
| Doorbell transformers are often located in the attic.
|
|
|
|
|
|
|
| --
| bz 73 de N5BZ k
|
| please pardon my infinite ignorance, the set-of-things-I-do-not-know
is an
| infinite set.
|
| [email protected] remove ch100-5 to avoid spam trap

 

[James Sweet]

Greetings..

Regarding:
"| Doorbell transformers are often located in the attic."

True! Also, all too often all but forgotten about as they create RFI
havoc for nearby radio amateurs / SWL etc.! Trying to get the neighbor
or business to be cooperative to replace this crude RF transmitter
can, and often IS, quite a challenge!

Usually brought to you by the sheer ignorance of a fellow home or
business owner that "didn't know" such things could ever happen..

Cheers,
Mr. Mentor



| [email protected] wrote in | 27g2000hsf.googlegroups.com:
|
| > OK. I popped the cover off the control panel outside to have a
look.
| > At some point the control module was replaced with a Lee Dan
PK-543.
| > Well it looks like they still make them if this is the problem.
The
| > only other possible problem could be the transformer which kicks
the
| > voltage down to 16 VAC to run the module.
| >
| > Now here's a dumb question. Where would this transformer be
located?
| > It's not behind the control panel outside. I looked around the
| > basement by the circuit breakers/cable/phone lines and couldn't
find
| > it there either. Any suggestions where to look?
|
| Doorbell transformers are often located in the attic.
|

Is that legal?

Mine is on the wall in the garage, I've also seen them in closets, never
seen one in the attic.

 

[Allodoxaphobia]

Most of the ones I've seen are on the side of a breaker box or fuse
box. Some mounted right to the box, while others are on a 4" square
plate and mounted to a square steel box for fire safety.

Every one I've ever encountered in the last 40 years around Colorado
have been mounted on a rafter in the attic.

But, I'm also sure that the hodge-podge of electrical codes across the
U.S.A. could dictate that it be mounted almost ANYWHERE.

Jonesy

 

[bz]

Most of the houses I've seen with attics were finished space, and the
others usually didn't have an attic. This was in Ohio, and Florida.
Homes with no attic or basement are common in Florida. In SW Ohio the
building inspectors wanted to see any power transformer, for doorbells
alarm systems or anything else near the main power disconnect.

Three houses I have owned in Baton Rouge, Louisiana all had the doorbell
transformer in the unfinished attic.





--
bz

please pardon my infinite ignorance, the set-of-things-I-do-not-know is an
infinite set.

[email protected] remove ch100-5 to avoid spam trap

 

[Robotek]

simply follow the 2 wires from the PK543 power pak marked "transformer" labled K & C
here are the wiring instructions
http://www.leedan.com/IN-826.pdf