DC power jack pinouts for Sony VAIO PCG-9G1L laptop

[msg]

I would appreciate the pinouts for the Sony VAIO PCG-9G1L laptop, made
around perhaps 2002. The jack when viewed from the rear has two pins
in the center of the round barrel (not coaxial), neither of which
shows continuity to case ground. The power input label states 19.5VDC
at 3A.

I could take a 50/50 stab at the polarity, but I'd probably only get
one chance I'd rather not have to disassemble the beast to trace
the circuit and would appreciate perhaps someone measuring the polarity
of the power supply's DC cable if you have it, or any notes you may
have.

NOTE: Sony docs don't contain power supply pinouts and previous attempts
to get such data from Sony sites was futile.

Thanks,

Michael

 

[msg]

msg wrote:

I would appreciate the pinouts for the Sony VAIO PCG-9G1L laptop, made
around perhaps 2002. The jack when viewed from the rear has two pins
in the center of the round barrel (not coaxial), neither of which
shows continuity to case ground.

Never mind, the two pins are actually a forked single pin and the
jack is coaxial, although the barrel is plastic and the 'shield'
is just a spring wipe contact. The two pins must have been part
of a broken center conductor in the jack.

Michael

 

[David Farber]

"msg" <msg@_cybertheque.org_> wrote in message
news:6eidnetyAaHj4vLUnZ2dnUVZ_tPinZ2d@posted.cpinternet...

msg wrote:

I would appreciate the pinouts for the Sony VAIO PCG-9G1L laptop, made
around perhaps 2002. The jack when viewed from the rear has two pins
in the center of the round barrel (not coaxial), neither of which
shows continuity to case ground.

Never mind, the two pins are actually a forked single pin and the
jack is coaxial, although the barrel is plastic and the 'shield'
is just a spring wipe contact. The two pins must have been part
of a broken center conductor in the jack.

Michael

I would open the laptop and *remove* the power connector that goes to the
jack. On my PCG-K23, the power cable can be readily unplugged from the power
board. Now you can install the new jack and apply power without it actually
being hooked to the laptop circuitry. Check the polarity of the incoming
voltage before it gets sent to the power board and see if that matches the
expected polarity. For example, one of the pins on the power cable should be
common to the chassis and that would be the negative terminal of the jack.

Hope this helps.

--
David Farber
David Farber's Service Center
L.A., CA

 

[David Powell]

In article <6eidnetyAaHj4vLUnZ2dnUVZ_tPinZ2d@posted.cpinternet>,
msg <msg@_cybertheque.org_> in sci.electronics.repair wrote:

msg wrote:

I would appreciate the pinouts for the Sony VAIO PCG-9G1L laptop, made
around perhaps 2002. The jack when viewed from the rear has two pins
in the center of the round barrel (not coaxial), neither of which
shows continuity to case ground.

Never mind, the two pins are actually a forked single pin and the
jack is coaxial, although the barrel is plastic and the 'shield'
is just a spring wipe contact. The two pins must have been part
of a broken center conductor in the jack.

Centre pin is positive on my PCG FX205k

Regards,

David P.