Philips LC7.1E Service Manual page 16

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EN 16
5.
LC7.1E LB
5.3
Service Tools
5.3.1
ComPair
Introduction
ComPair (Computer Aided Repair) is a Service tool for Philips
Consumer Electronics products. and offers the following:
1. ComPair helps you to quickly get an understanding on how
to repair the chassis in a short and effective way.
2. ComPair allows very detailed diagnostics and is therefore
capable of accurately indicating problem areas. You do not
have to know anything about I2C or UART commands
yourself, because ComPair takes care of this.
3. ComPair speeds up the repair time since it can
automatically communicate with the chassis (when the uP
is working) and all repair information is directly available.
4. ComPair features TV software upgrade possibilities.
Specifications
ComPair consists of a Windows based fault finding program
and an interface box between PC and the (defective) product.
The (new) ComPair II interface box is connected to the PC via
an USB cable. For the TV chassis, the ComPair interface box
and the TV communicate via a bi-directional cable via the
service connector(s).
The ComPair fault finding program is able to determine the
problem of the defective television, by a combination of
automatic diagnostics and an interactive question/answer
procedure.
How to Connect
This is described in the chassis fault finding database in
ComPair.
TO TV
TO
TO
I 2 C SERVICE
UART SERVICE
CONNECTOR
CONNECTOR
ComPair II
Multi
function
RC in
RC out
Optional
Power
Link/
Mode
Switch
Activity
PC
Optional power
HDMI
2
I
C only
Figure 5-6 ComPair II interface connection
Caution: It is compulsory to connect the TV to the PC as
shown in the picture above (with the ComPair interface in
between), as the ComPair interface acts as a level shifter. If
one connects the TV directly to the PC (via UART), ICs will be
blown!
How to Order
ComPair II order codes:
ComPair II interface: 3122 785 91020.
ComPair32 CD (update): 3122 785 60160.
ComPair interface cable: 3122 785 90004.
ComPair interface extension cable: 3139 131 03791.
ComPair UART interface cable: 3122 785 90630.
ComPair UART interface cable for Q52x.x
(using 3.5 mm Mini Jack connector): 3104 311 12742.
Note: If you encounter any problems, contact your local
support desk
Service Modes, Error Codes, and Fault Finding
TO
UART SERVICE
CONNECTOR
2
I
C
RS232 /UART
ComPair II Developed by Philips Brugge
5V DC
G_06532_036.eps
240807
5.3.2
LVDS Tool
Support of the LVDS Tool has been discontinued.

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