BOMARC
SERVICES
REVERSE
ENGINEERING SERVICES
ACCEPTANCE:
Due
to the mountain of items we have on hand to be drawn, and re-drawn
- - and due to the minuscule amount of interest in our work, we are
no longer drawing items for customers, except under one of the following
three conditions:
1)
UNCOMMON INTEREST: If we have had a lot of requests for an item,
even though it is not on our want list, we will draw the item for
you free of charge, and pick up the shipping back to you. You will
get a clear copy.
2)
GIFT TO US: If you really want a print of something, and send the
item to us without wanting it back, we will draw it free for charge
(as our time permits - - it may take us weeks to get at it). You
will get a clear copy.
3)
UNDER CONTRACT: If you want something reverse engineered, drawn
up, and are willing to pay us to do the job, please read on. You
will have to pick up the shipping both ways, and pay us for our
time, as shown below, however, you WILL get the dreaded clear copy
of the work.
Our basic rates are $20.00 an hour for the rough-out, clean-up, and
final draft work. It has been out experience that it takes roughly the
same amount of time for rough-out and draft stages on simple circuits.
Clean-up depends entirely on the complexity of the circuitry, and may
not even be needed. Should the customer desire only a rough-out of the
circuit, only this stage would be charged for.
Should BOMARC believe the circuit is unique, or interesting enough to
be put in our catalog for sake, only the rough-out stage would be charged
for. Mostly these items would be either on our want list, or items similar
to the stuff we already have in our catalogs. Items put into our catalog
HAVE to be complete units, not bits and pieces. If the customer insists
the item NOT be placed in the catalog, all three stages will be paid
for (about double the cost to customer).
It
is difficult to estimate the time involved with reverse engineering
a circuit, as many variables enter into the picture. A simple one-sided
circuit board with 8-16 pin I.C.s could roughly be figured at 15 minutes
per chip. Double sided boards would run twice that (30 min or so).
Add time if a lot of analog circuitry is involved. Multi-layer boards,
unless the only layers are ground and/or voltage planes, multiply
the time grossly! Surface mounted boards, unless all is wanted is
the basic interconnections, take much more time, as the chip components
have to be removed to read values. (Normally, unless the customer
does not want the item back, or doesn't care if it works or not, we
do not remove chip capacitors for measurement, as the are almost always
broken in doing so. Resistors, we usually DO dismount, if they are
soldered in upside down, and the codes can not be read). In-house
chips take time to figure out and potted boards or areas also slow
down the process.
It is best to call BLOB
at (307)234-3488,
and make a thorough description of the unit, to get us a better handle
on the time involved, what we want to know is:
HOW
MANY CHIPS?
KIND
OF CHIPS? (PGA, DIPP, SIPP, GLUE, MEMORY, COMPUTER, etc.)
ARE
MAJORITY OF CHIPS REAL-WORLD, OR IN-HOUSE NUMBERED?
APPROXIMATE
PERCENTAGE OF ANALOG STUFF?
TYPE
OF BOARD? (SINGLE LAYER, DOUBLE SIDED, OR MULTI-LAYER, AND IS IT
TRANSLUCENT, OR OPAQUE?)
ARE
THE CHIPS SOCKETED, OR SOLDERED TO THE BOARD?
IF
SOLDERED, ARE THEY STANDING A BIT ABOVE THE BOARD, OR SMASHED DOWN
ON IT PLUMB? (The reason we ask about this is so we know if we can
look at a chip pin against the light, and see if a trace takes off
and goes back under the chip. If the board is opaque, or the chip
is down touching the board, or in a socket, we can not tell this,
and that slows us down. If we can SEE a trace under the chip, we
can trace it down, but if we don't know it's there, we have to assume
there may be one, and hunt laboriously for it!)
ANY
POTTED, OR HERMETICALLY SEALED MODULES?
ANY
THICK, OR THIN FILM EPOXY COATED COUPLATES?
ANY
METAL R.F. MODULES? (These usually have to be removed, opened,
and reverse engineered as separate units).
ANY
FOUNDLING ITEMS (keypads, displays, sub-boards, etc.) HANGING
OFF MAIN BOARD, VIA UNCONNECTABLE MEANS? (hard-wired, soldered
ribbon cables, etc.)
With
the above information, as well as experience from a similar past project
(if any), we can maybe give you a rough "ball park" figure
of how much it will cost to draw the item.
Shipping to us can be either parcel post, or UPS (a different address
applies to each). We prefer to ship back the unit via UPS. It seems
to take around 7 days to ship from this area to either coast, so take
this into account. If you choose to send us an item via PARCEL POST,
use our box number (always use this for correspondence as well) P.O.
Box 1113 Casper, Wyoming, 82602. If you choose to use U.P.S. to send
us something, use BRYAN-EVANSVILLE ROAD, CASPER, WYOMING 82609. In ALL
cases, we will need the BRAND NAME, and MODEL NUMBER of the item you
send. Also, if this has to be shipped back to you, what amount of insurance
do you want us to use?
Normally, the only items we will remove from a circuit would be one
end of a diode, precision resistor, or tubular capacitor, in the event
the number is hidden. In the event of in-house I.C.s, or those with
the numbers removed, and if our bag of tricks won't bring these numbers
back, we may remove the chip to run tests on it. The chances of our
damaging the circuit in these events is very slim, so for a normal board,
it is unlikely the device will be any different when it gets back to
you, than it was when we received it.
In the case of potted modules or areas, the chance for damage is very
great! While we have had good luck so far in not damaging a circuit
beyond repair, we would not recommend drawing any potted circuit unless
the customer does not care whether it works after the draw, or not!
Another problem area is the computer items using battery backing. We
can almost certainly guarantee a memory dump in the process of reverse
engineering, so caveat emptor!
If your board has MOS chips, we use wrist straps while working with
it, however we prefer to work on junk, or damaged boards since static
damages is always a possibility.
Any “only rough-out” requested will be sloppy, and definitely
not arranged neatly, however they will be readable, have parts values
marked, and all wiring will at least be connected. Drafts will be cleaned
up, and drawn with tools. Power supply voltages will be shown (if the
item is in working condition), and sometimes we show pertinent waveforms.
We try not to cover any more than two sheets of paper with a discreet
circuit. If more sheets are required, we try to break the circuit up
into easily understandable sections.
All work done has to be done by appointment only. Do NOT send an item
to be drawn out of the blue, unless you are prepared to wait until we
have the time to dig into it. To describe your circuit, or get any further
information about our service, call BLOB at (307)234-3488
Monday through Friday from 9:00 AM till 2:00 PM, or 3:00 PM till 6:00
PM, Saturday from 11:00 AM till 2:00 PM Mountain Time Zone (shown on
clock at top of page!) Be prepared to discuss the information we need,
listed under TIME.
Our
normal sequence is as follows.
2)
We tear down and rough-out the item.
2.5)
We draft the item (if we go this far)
3)
We keep a record of our time in 1/2 hour chunks on the invoice.
4)
We make our an invoice and send you a preliminary copy of same with
the drawn item.
5)
You send us a check, or money order for the invoice amount, drawn
on a US bank in US funds.
6)
We send the final invoice copy, and one or more clear copy sets
of prints to you.
In
the event you are not paying for the draw, we send the clear copy
prints to you when we have the item finished, either with, or without
the item, depending on whether or not we are required to send it back
to you, or not (See ACCEPTANCE section above).
PLEASE NOTE: PRICES
AND CONDITIONS ARE SUBJECT TO CHANGE AT ANY TIME.
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by BOMARC Services.
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