Philips PCL304 - Page 82

10-1
10 MODIFICATION
-
Description
of
the
system
used
for
publishing
modification
data
and
supplements
to
the
Service
Manual.
All
modification
data
and
supplements
to
the
service
manual
are
published
by
means
of
Service
Information
bullitins.
Each
Service
Information
has
a
number,
for
example:
SQS SI PCL 01
| “t— Sequence number
Product range
Service information
Service Quality Support
A
Service
Information
bullitin
consists
of
a
yellow
front
sheet,
as
the
case
may
be
followed
by
supplementary
and/or
replacement
sheets.
Replacements
sheets
serve
to
replace
existing
sheets
in
the
Service
Manual.
These
sheets
are
identified
by
an
additional
letter
after
the
page
number,
for
example
5-1a.
Page
5-1a
then
takes
the
place
of
page
5-1.
Supplementary
sheets
are
inserted
between
the
existing
sheets
in
the
Service
Manual.
These
sheets
can
be
identified
by
an
additional
figure
following
the
page
number,
for
example
5-1-1.
Sheet
5-1-1
should
be
inserted
after
page
5-1.
Each
Service
information
is
accompanied
by
an
updated
list
of
contents
per
page.
For
each
page
added
or
each
page
replaced
the
list
of
contents
indicates
with
wich
Service
Information
the
relevant
page
has
been
published.
-
Description
of
the
system
by
means
of
which
modifications
are
indicated
in
the
notebook
computer.
All
important
parts
of
the
notebook
computer,
such
as
power
supply,
p.c.
boards
and
modules,
are
provided
with
a
sticker.
These
stickers
specify
a
number
of
product
data.
The
meaning
of
this
data
will
now
be
explained
for
the
most
important
sections.
CS 55 865
@ The complete system unit
Type plate
The type plate is located underneeth the system unit.
Below a sample of such a type plate is given:
1A 00 XX XX XXXXXX
~~ [= Serial number (from 00100
onwards)
Production week
Production year (1990 = 90 etc.)
Change code (from 00 onwards)
Note:
In case of a important
modification to the system unit the
production code on the type plate
is increased by one.
E.G. 00 becomes 01.
@ Printed panels
The stickers are generally located on the component
side of the circuit board assembly (CBA).
Example:
REV.3A
PG01200594 \
- The production status number will not always be
mentioned.
- Incase of an important modification, the revision
number or letter will be increased in alphabetical or
numerical order.