Philips TE1.1E AA, Руководство по обслуживанию

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Service Modes, Error Codes, and Fault Finding EN 9 TE1.1E 5.
directly available. When ComPair is installed together with
the SearchMan electronic manual of the defective chassis,
schematics and PWBs are only a mouse click away.
5.2.2
Specifications
ComPair consists of a Windows based faultfinding program
and an interface box between PC and the (defective) product.
The ComPair interface box is connected to the PC via a serial
or RS232 cable.
The ComPair interface box and the TV communicate via a bi-
directional service cable via the service connector.
The ComPair faultfinding program is able to determine the
problem of the defective TV set. ComPair can gather diagnostic
information in two ways:
•
Automatic (by communication with the TV set): ComPair
can automatically read out the contents of the entire error
buffer. Diagnosis is done on I2C level. ComPair can send
and receive commands to the micro controller of the TV
set, and so can access the I2C bus of the TV set. In this
way, it is possible for ComPair to communicate (read and
write) to devices on the I2C busses of the TV set.
•
Manually (by asking questions to you): Automatic
diagnosis is only possible if the micro controller of the TV
set is working correctly and only to a certain extend. When
this is not the case, 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 showing you examples (e.g. Measure test-point
F7 and click on the correct oscillogram you see on the
oscilloscope). You can answer by clicking on a link (e.g.
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.
Beside fault finding, ComPair provides some additional
features like:
•
Emulation of the (European) 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 C2228
(Schematic/Panel). Click on the 'Panel' hyperlink to
automatically show the PWB with a highlighted capacitor
C2228. Click on the 'Schematic' hyperlink to automatically
show the position of the highlighted capacitor.
5.2.3
How to Connect
1.
First install the ComPair Browser software (see the Quick
Reference Card for installation instructions).
2.
Connect the RS232 interface cable between a free serial
(COM) port of your PC and the PC connector (marked with
‘PC’) of the ComPair interface.
3.
Connect the mains adapter to the supply connector
(marked with ‘POWER 9V DC’) of the ComPair interface.
4.
Switch the ComPair interface ’OFF’.
5.
Switch the television set ‘OFF’ with the mains switch.
6.
Connect the ComPair interface cable between the
connector on the rear side of the ComPair interface
(marked with ‘I2C’) and the ComPair connector at the rear
side of the TV (situated just below the tuner input, see also
chapter 4).
7.
Plug the mains adapter in a mains outlet, and switch the
interface ‘ON’. The green and red LEDs light up together.
The red LED extinguishes after approx. 1 second while the
green LED remains lit.
8.
Start the ComPair program and read the ‘Introduction’
chapter.
Figure 5-3 ComPair interface connection CL 96532156-029
5.2.4
How to Order
ComPair order codes:
•
ComPair/SearchMan introduction package: 3122 785
90450.
•
ComPair32 software (CD): 3122 785 60110.
•
ComPair/I2C interconnection cable: 3122 785 90004
CL96532156_029.eps
190600
PC VCR I2C Power
9V DC
R
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AUDIO EXTERNAL 1
EXTERNAL 2
SERVICE
CONNECTOR