Service Modes, Error Codes, and Fault Finding
EN 13
DPTV565 AA
5.
NO Colours/colour Lines Around Picture Elements or
Colours not Correct or Unstable Picture
Check line 20 'TV System'. If a “strange” system pops up,
something has gone wrong during installation. Re-install the
channel.
Menu Text not Sharp Enough
1.
Press 'Smart Picture' button on the RC-transmitter. In case
picture improves, decrease the contrast value. The new
value(s) are automatically stored for all TV channels.
2.
Check line 8 'Contrast'. The value of line 8 is high (> 50).
Decrease the contrast value.
5.3.2
Sound Problems
No Sound from Left and Right Speaker
Check line 6 'Volume'. The value is low. Increase the value of
'Volume'. The new value(s) are automatically stored (in
“personal” pre-set) for all TV channels.
Sound too Loud for Left and Right Speaker
Check line 6 'Volume'. The value is high. Decrease the value of
'LS Volume'. The new value(s) are automatically stored (in
“personal” pre-set) for all TV channels.
5.4
ComPair
5.4.1
Introduction
ComPair (Computer Aided Repair) is a service tool for Philips
Consumer Electronics products. ComPair is a further
development on the European DST (service remote control),
which allows faster and more accurate diagnostics. ComPair
has three big advantages:
•
ComPair helps you to quickly get an understanding on how
to repair the chassis in a short time by guiding you
systematically through the repair procedures.
•
ComPair allows very detailed diagnostics (on I
2
C level) and
is therefore capable of accurately indicating problem areas.
You do not have to know anything about I
2
C commands
yourself because ComPair takes care of this.
•
ComPair speeds up the repair time since it can
automatically communicate with the chassis (when the
microprocessor is working) and all repair information is
directly available. When ComPair is installed together with
the Force/SearchMan electronic manual of the defective
chassis, schematics and PWBs are only a mouse click
away.
5.4.2
Specifications
ComPair consists of a Windows based fault finding 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.
For this chassis, the ComPair interface box and the TV
communicate via a bi-directional service cable via the service
connector(s).
The ComPair fault finding program is able to determine the
problem of the defective television. ComPair can gather
diagnostic information in two ways:
•
Automatic (by communication with the television): ComPair
can automatically read out the contents of the entire error
buffer. Diagnosis is done on I
2
C/UART level. ComPair can
access the I
2
C/UART bus of the television. ComPair can
send and receive I
2
C/UART commands to the micro
controller of the television. In this way, it is possible for
ComPair to communicate (read and write) to devices on
the I
2
C/UART busses of the TV-set.
•
Manually (by asking questions to you): Automatic
diagnosis is only possible if the micro controller of the
television is working correctly and only to a certain extend.
When this is not the case, ComPair will guide you through
the fault finding 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 I7
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 fault finding 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:
•
Up- or downloading of pre-sets.
•
Managing of pre-set lists.
•
Emulation of the (European) Dealer Service Tool (DST).
•
If both ComPair and Force/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.
5.4.3
How to Connect
This is described in the chassis fault finding database in
ComPair .
Figure 5-4 ComPair interface connection
5.4.4
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 (update): 3122 785 60070 (year 2002,
3122 785 60110 (year 2003).
•
SearchMan32 CD (update): 3122 785 60080 (year 2002),
3122 785 60120 (year 2003), 3122 785 60130 (year 2004).
•
ComPair interface cable: 3122 785 90004.
•
ComPair firmware upgrade IC: 3122 785 90510.
•
Transformer (non-UK): 4822 727 21632.
•
Transformer UK: 4822 727 21633.
Note: If you encounter any problems, contact your local
support desk.
E_06532_021.eps
180804
PC
VCR
I2C
Power
9V DC
TO
UART SERVICE
CONNECTOR
TO
I2C SERVICE
CONNECTOR
