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Q: telephone repair ( No Answer,   7 Comments )
Question  
Subject: telephone repair
Category: Miscellaneous
Asked by: russellga-ga
List Price: $2.00
Posted: 08 Jul 2002 12:23 PDT
Expires: 07 Aug 2002 12:23 PDT
Question ID: 37624
I have a panasonic cordless phone and the headset jack isn't working. 
I'm looking for repair information so i can do it myself.
Answer  
There is no answer at this time.

Comments  
Subject: Re: telephone repair
From: alienintelligence-ga on 08 Jul 2002 14:12 PDT
 
are you wanting a schematic or just general
directions? We'll need a model #

-AI
Subject: Re: telephone repair
From: russellga-ga on 08 Jul 2002 21:44 PDT
 
The model no. is KX-TG2560B.  It's a 2.4GHz cordless phone.  I guess i
would like either or both a schematic and/or general directions -
obviously have no knowledge of the subject but would like to try to
fix it myself.
Subject: Re: telephone repair
From: alienintelligence-ga on 09 Jul 2002 04:24 PDT
 
Ok, it looks like most schematics and/or
manuals will cost some coin.

Did the headset jack ever work at one
time? If so, then it's probably a simple
bad solder joint. Do you have basic
soldering skills? Are you familiar
with PCBs [printed circuit boards]?
If so, this should be easy to fix.

If the jack is bad, it might be a
bit more complex based on the
availability of a new jack. 

Either way, you'll have to get into
the phone somehow, screws or plastic
'snaps', and get the clamshell apart.
More than likely the schematic will
only help if you have to trace a bad
component, other than the jack. Will
it be worth it timewise at that point?
A user manual will probably be of no
use for this. Most aren't.

Soldering will be in your future
unless the jack is socketed.

I can elaborate / talk you thru it, 
if you decide you want to go for it.

Try taking it apart, that's usually
how I judge a job. If it's a &$#%*
pain... it might not be worth it.

-AI
Subject: Re: telephone repair
From: russellga-ga on 09 Jul 2002 10:15 PDT
 
The headset jack worked until just after the warranty expired.  I was
hoping for some instructions in snapping apart the clam shell to begin
with.  I'm afraid of breaking it.  I have basic soldering skills but
am not familiar with circuit boards.  Do you think this is too much
given my lack of experience?
Subject: Re: telephone repair
From: alienintelligence-ga on 12 Jul 2002 00:53 PDT
 
Getting the clamshells apart on plastic
encased electronics is ALWAYS tricky,
unless you've been inside already.

With phones, the most popular places
for the screws that hold the 2 halves
together are in the battery compartment
possibly hidden by the battery, or a
label, etc. Also, I have seen them
behind the little plastic piece that
covers where you put your phone #,
usually between the earpiece and
# buttons.

Looking at your particular model, it
looks like the most likely area is
the battery compartment, since the
area where the phone # usually goes
is occupied by an LCD.

The antenna will probably need to be
unscrewed (unclipped?).

If the screws are in the battery area,
then the dreaded plastic clips are going
to be along the sides, and top. I usually
probe with a fingernail. Gently pulling
the halves apart at the bottom, paying
attention to any wires that might be
crossing from one half to the other...
you should be able to see how much
attention they paid to keeping it all
together. It's a Panasonic, so they
did a good job. As you run a fingernail
up the sides of the seam, you will
probably encounter the first clips. If
screws were holding the bottom, you
might be lucky, and they are simple
to unlodge. You should note which half
sits recessed into the other one. This
will probably be the direction of 
relief for the clips. What I mean is,
if the back sits just inside the edge
of the front, a fingernail pointing
to the front should wedge the side 
outwards to unhinge the clip. Take 
much care with it. They are flimsy
probably. Don't fret too much, most
clamshells are under $20-30. If you
break it, that will probably still
be under the cost of repair charges.

This get you anywhere? Let me know,
I'll talk you thru the diagnostics,
circuit board removal (if necessary)
and the desoldering. 

Be sure to pay attention & watch out for
wires being pinched or pulled. Listen
for any cracking, or other bad noises.
Watch out for the keys dropping, the
diaphragm that might be under them,
springs or clips associated with the
battery, that expensive looking LCD
display, & the antenna.

Worksurface: I like a 1" high lipped
tray, like a dinner tray, lined with
a white dish towel. For traction, and
contrast against parts. Something
separate for the screws too. 

*Disclaimer:
 I am not responsible for any damage,
 preexisting or caused by these general
 directions. These aforementioned
 methods of disassembly have worked very
 well for me for many years. They were
 also the cause of a lot of stress for my
 parents when I was young, so get permission
 from your folks if you are underage. ;-)

-AI
Subject: Re: telephone repair
From: alienintelligence-ga on 01 Aug 2002 01:23 PDT
 
Hey russellga,

how'd the repair go? did you
attempt it? I hope my info helped
in some way?

thanks
-AI
Subject: Re: telephone repair
From: russellga-ga on 01 Aug 2002 10:43 PDT
 
AI-
The problem is resolved and i decided not to try to take it apart this
time.  I'll keep all your info for the next time something goes wrong.
 Thank you for all your time and help.
-russellga

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