Table of Contents
Advertisement
entire error buffer. Diagnosis is done on I
2
can access the I
C bus of the television. ComPair can send
2
and receive I
C commands to and from the micro controller
of the television set. In this way, it is possible for ComPair
to communicate (read and write) to devices on the I
busses of the TV-set.
•
Manually (by asking questions to you): This option is
helpful, because automatic diagnosis is only possible if the
micro controller of the television is working correctly (also,
the diagnostic possibilities of automatic diagnosis are more
limited). When you choose manual diagnosis, ComPair will
guide you through the faultfinding tree by asking you
questions (e.g. Does the screen give a picture? Click on
the correct answer: YES / NO) and by showing you
examples (e.g. Measure test-point I7 and click on the
correct oscillogram you see on the oscilloscope). You can
answer by clicking on a link (e.g. a piece of text or a
waveform picture) that will bring you to the next step in the
faultfinding process.
By a combination of automatic diagnostics and an interactive
question / answer procedure, ComPair will enable you to find
most problems in a fast and effective way.
Besides fault finding, ComPair provides some additional
features like:
•
Up- or downloading of pre-sets.
•
Managing of pre-set lists.
•
Emulation of the Dealer Service Tool (DST).
•
If both ComPair and SearchMan (Electronic Service
Manual) are installed, all the schematics and the PWBs of
the set are available by clicking on the appropriate
hyperlink.
Example: Measure the DC-voltage on capacitor C2568
(Schematic/Panel) at the Mono-carrier.
–
Click on the "Panel" hyperlink to automatically show
the PWB with a highlighted capacitor C2568.
–
Click on the "Schematic" hyperlink to automatically
show the position of the highlighted capacitor.
•
SW upgrading
5.4.3
How To Order
ComPair order codes:
•
Starter kit ComPair32/SearchMan32 software and
ComPair interface (excl. transformer): 3122 785 90450.
•
ComPair interface (excluding transformer): 4822 727
21631.
•
Starter kit ComPair32 software (registration version): 3122
785 60040.
•
Starter kit SearchMan32 software: 3122 785 60050.
•
ComPair32 CD (2003 update): 3122 785 60110.
•
SearchMan32 CD (2003 update): 3122 785 60120.
•
ComPair interface cable: 3122 785 90004.
•
ComPair firmware upgrade IC: 3122 785 90510.
•
Transformer Europe: 4822 727 21632.
•
Transformer UK: 4822 727 21633.
5.5
Error Codes
5.5.1
Introduction
The error code buffer contains all detected errors since the last
time the buffer was erased. The buffer is written from left to
right, new errors are logged at the left side, and all other errors
shift one position to the right.
When an error has occurred, the error is added to the list of
errors, provided the list is not full or the error is a protection
error.
When an error occurs and the error buffer is full, then the new
error is not added, and the error buffer stays intact (history is
maintained), except when the error is a protection error.
To prevent that an occasional error stays in the list forever, the
error is removed from the list after 50+ operation hours.
Service Modes, Error Codes, and Fault Finding
2
C level. ComPair
2
C
ES1E
When multiple errors occur (errors occurred within a short time
span), there is a high probability that there is some relation
between them.
5.5.2
How to Read the Error Buffer
Use one of the following methods:
•
On screen via the SAM (only if you have a picture).
Examples:
–
0 0 0 0: No errors detected
–
6 0 0 0: Error code 6 is the last and only detected error
–
9 6 0 0: Error code 6 was first detected and error code
9 is the last detected error
•
Via the blinking LED procedure (when you have no
picture). See next paragraph.
•
Via ComPair.
5.5.3
How to Clear the Error Buffer
Use one of the following methods:
•
By activation of the "CLEAR ERRORS" command in the
SAM menu.
•
With a normal RC, key in sequence "MUTE" followed by
"062599" and "OK".
•
When you transmit the commands "DIAGNOSE" - "99" -
"OK" with ComPair (or with a DST).
•
If the content of the error buffer has not changed for 50+
hours, it resets automatically.
5.5.4
Error Codes
The function of error codes is to indicate failures in the TV set.
In principle a unique error code is available for every:
2
•
I
C device error.
2
•
I
C bus error (for every bus containing two or more I
devices).
•
Protection error (e.g. +8V protection or Horizontal
protection).
•
Error not related to an I
BC-loop, RAM error).
5.
EN 13
2
C
2
C device, but of importance (e.g.
Advertisement
Table of Contents
