Coding System Of Failure Reporting For Quality Assessment - Philips PM 5390 Service Manual

CODING SYSTEM OF FAILURE REPORTING FOR QUALITY
ASSESSMENT
OF T
& M INSTRUMENTS
(excl.
potentiometric recorders)
The
information
contents of the
coded failure
description
is
necessary for
our computerized processing of
quaiity
data.
,
Since the reporting
of repair
and maintenance routines
must
be
complete and exact,
we
give
you an
examp
e
of
a correctly filled-out
PHILIPS
SERVICE Job
sheet.
Factory /Serial
no.
Country
Day Month Year
'3T2
Typenumber
/Version
1
0
If)
4
0 0
0
0
"ivT
B
0 0 0
0
0
~D\
o|o
_
0
^
0 0 0
CODED FAILURE
DESCRIPTION
©
Nature of
call
Installation
Pre sale repair
Preventive
maintenance
Corrective
/\ maintenance
Other
Location
Component/sequence no.
Category
Q>
Job completed
Working
time
®
TTIT] Hrs
Detailed
description of the Information to
be entered
in
the various boxes:
©Country:
|
3
1
2
]
= Switzerland
©Day
Month Year
1 1
|
5
1
0
|
4
|
7
[T| =
15
April
1975
©Type
number/Version
|Q|p|m|3|2|6|o|o|2|
=
Oscilloscope
PM
3260,
version
02
(in later
oscilloscopes
this
number
is
placed in
front of
the serial
no)
©Factory/Serial
number
[D|o|o|0|7|8|3^
DO
783 These data are
mentioned on
the type
plate
of
the instrument
(g)
Nature
of
call:
Enter
a
cross
in
the
©Coded
failure
description
Location
These four
boxes are
used
to
isolate
the
problem area.
Write
the
code
of
the part
In
which
the fault
occurs, e.g.
unit
rto
or mechanical
item
no
of this part (refer
to
'PARTS
LISTS'
in
the
manual).
Example: 0001
for
Unit
1
OOOA
for
Unit
A
0075
for
item
75
If
units are
not
numbered, do not
fill
in
the four boxes; see
Example
Job sheet.
relevant
box
Component/sequence no.
Category
These
six
boxes are
intended to
pinpoint the faulty
component.
A. Enter the
component
designation as
used
in
the circuit
diagram.
If
the designation
is
alfa-numeric,the
letters
must be
written (starting
from the
left)
in
the
two left-hand
boxes and
the figures
must be written (in
such
a
way that the
last
digit
occupies the right-most
box)
in
the four right-hand boxes,
B- Parts
not
identified in
the
circuit
diagram:
990000 Unknown/Not applicable
990001
Cabinet or rack (text
plate,
emblem,
grip, rail,
graticule, etc.)
990002 Knob
(incl.
dial
knob,
cap,
etc.)
990003 Probe (only
if
attached
to instrument)
990004
Leads and
associated plugs
990005 Holder (valve .transistor,
fuse,
board, etc.)
990006 Complete unit (p.w.
board,
h.t.
unit, etc.)
990007 Accessory
(only those
without type
number)
99(X)08
Documentation
(manual.
0
Unknown, not applicable (fault
not
present, intermittent
or
disappeared)
1
Software error
2 Readjustment
3 Electrical repair (wiring,
solder
joint, etc.)
4
Mechanical
repair (polishing,
filing,
remachining,
etc.)
5 Replacement (of transistor,
resistor, etc.)
6 Cleaning and/or lubrication
7 Operator error
8 Missing items (on
pre-sale test)
9 Environmental
requirements are
not
met
supplement,
etc.)
990009 Foreign object
990099 Miscellaneous
®
Job
completed: Enter a cross
when the job has
been completed.
©Working
time: Enter the total
number
of
working hours spent
in
connection with
the job (excluding
travelling,
waiting time, etc.),
using the last
box
for
tenths of hours.
I I
[
1
fT]
=
1,2
working hours
(1
h 12 min.)
c>