Vic,

You don't mention what CAD programs you are using, but what you are
proposing is definitely NOT the ideal method. You will screw up any chance
of doing a proper ECO in the future.

What you really need to do is change the schematic and ECO forward to the
PCB. If you don't want to generate new artworks at this point, fine, but at
least keep both of the databases current.

In addition, if your end product is in any way RF sensitive, the floating
trace which used to run to VR1 pin 2 will now be an antenna which could
introduce unwanted RF interference into your circuit.

Jay DeKing
EMA Mid-Atlantic, Inc.
(716)334-2970 voice
(716)334-3481 fax
[log in to unmask]

-----Original Message-----
From:   Victor Ezerski [SMTP:[log in to unmask]]
Sent:   Friday, March 20, 1998 11:16 AM
To:     [log in to unmask]
Subject:        [TN] standard

Vic Ezerski
Pulse Electronics
301 515-2123    (phone)
301 515-2200    (fax)
[log in to unmask]    (e-mail)

Information contained in this document is proprietary and confidential to,
and the trade secret of, Pulse Electronics of Germantown, Maryland.
No part or the whole of this document may be disclosed to third parties,
or copied or reproduced in any manner without the prior written permission
of Pulse Electronics

I have a question pertaining to a schematic and artwork for a PCB.  On the
PCB there is a transistor, in it's place I want to place a resistor.
Physically on the PCB the resistor is placed in pin 1 and 3 of the
transistor pattern, there is no artwork change.  On the schematic I put a
resistor symbol where the transistor was and it's connections and remove
the transistor symbol.  Is this a correct way of doing this.
Also on the assembly drawing there will be a note to replace VR1 with R14,
install in pins 1 and 3 of the VR1.
  What I want to do is replace a transistor and in it's place put a
resistor.  With the note on the assembly drawing of the replacement that
would take care of the problem.  On the schematic I just put a resistor
symbol where a transistor once was.
I am told that the schematic should reflex the placement of the resistor
into VR1 position by the engineer and I don't believe this is correct
because the schematic is only the electrical representation and not the
physical one.  I would like your opinion.
                                                        thanks,
                                                        Vic

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