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From: wolfgang@mgm.mit.edu (Wolfgang Rupprecht)
Newsgroups: rec.audio,sci.electronics
Subject: Sony D-10/D-15 battery query
Message-ID: <5328@bloom-beacon.MIT.EDU>
Date: 13 May 88 17:13:08 GMT
Sender: daemon@bloom-beacon.MIT.EDU
Reply-To: wolfgang@mgm.mit.edu (Wolfgang Rupprecht)
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Organization: Freelance Software Consultant, Boston, Ma.
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References:

Does anyone have the pinouts (and voltages) for the 3 pin connector on
the Sony D-10 battery?  I would like to add an external set of
batteries to a D-15.  (The D-15 has a connector for this optional
battery, but no external battery and no specs for the connector.)

What I have been able to find out so far: 
(pins counted from left to right, when looking at the bottom of the CD
player, with connector at the top edge.)

	pin 1)  negative ground (goes to the internal battery (-) and the
		external charger (-)

	pin 2)  function unknown. + 6.8v present when charger is
		plugged in. Does not go to the charger directly.

	pin 3)  function unknown. floating. no voltage present at any time. 

The internal battery looks like a sealed lead-acid type with two cells
for 4.4v.  It specs and tests at 500mah. 

I had assumed that one of connections would be in parallel to the
internal battery, and identifcation would be easy. wrongo. 

thanks-
---
Wolfgang Rupprecht	ARPA:  wolfgang@mgm.mit.edu (IP 18.82.0.114)
TEL: (617) 267-4365	UUCP:  mit-eddie!mgm.mit.edu!wolfgang