Service Modes, Error Codes, and Fault Finding
EN 21
LC7.2E LA
5.
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.
Figure 5-9 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.
Note:
If you encounter any problems, contact your local
support desk
5.3.2
LVDS Tool
Introduction
This Service tool (also called “ComPair Assistant 1“) may help
you to identify, in case the TV does not show any picture,
whether the Small Signal Board (SSB)
or
the display of a Flat
TV is defective. Thus to determine if LVDS, RGB, and sync
signals are okay.
When operating, the tool will show a small (scaled) picture on
a VGA monitor. Due to a limited memory capacity, it is not
possible to increase the size when processing high-resolution
LVDS signals (> 1280x960). Below this resolution, or when a
DVI monitor is used, the displayed picture will be full size.
How to Connect
Connections are explained in the user manual, which is packed
with the tool. The LVDS cables included in the package cover
most chassis. For some chassis, a separate cable must be
ordered.
Note:
To use the LVDS tool, you must have ComPair release
2004-1 (or later) on your PC (engine version >= 2.2.05).
For every TV type number and screen size, one must choose
the proper settings via ComPair. The ComPair file will be
updated regularly with new introduced chassis information.
How to Order
•
LVDS tool (incl. two LVDS cables: 31p and 20p, covering
chassis BJx, EJx, FJx and LC4.1): 3122 785 90671.
•
LVDS tool Service Manual: 3122 785 00810.
•
LVDS cable 20p/DF -> 20p/DF (standard with tool):
3122 785 90731.
•
LVDS cable 31p/FI -> 31p/FI (standard with tool):
3122 785 90662.
For other chassis, a separate LVDS cable must be ordered.
Refer to table “LVDS cable order number” for an overview of all
available cables.
Table 5-2 LVDS cable order number
Notes:
1.
Included in LVDS tool package.
2.
Pins “27” and “28” must be grounded or not connected.
G_06532_036.eps
240807
TO
UART SERVICE
CONNECTOR
TO
UART SERVICE
CONNECTOR
TO
I2C SERVICE
CONNECTOR
TO TV
PC
HDMI
I
2
C only
Optional power
5V DC
ComPair II Developed by Philips Brugge
RC out
RC in
Optional
Switch
Power
Mode
Link/
Activity
I
2
C
ComPair II
Multi
function
RS232 /UART
Chassis
LVDS cable order number
Remarks
BJ2.4
3122 785 90662
1
BJ2.5
3122 785 90662
1
BJ3.0
3122 785 90662
1
BJ3.1
3122 785 90662
1
EJ2.0
3122 785 90662
1
EJ3.0
3122 785 90662
1
EL1.1
3122 785 90662
1
/ 3122 785 90821
FJ3.0
3122 785 90662
1
FTL2.4
3122 785 90662
1, 2
LC4.1
3122 785 90731
1
/ 3122 785 90851
LC4.3
3122 785 90821
LC4.31
3122 785 90821
LC4.41
3122 785 90662
1, 2
/ 3122 785 90851
Only for 26 & 32” sets.
LC4.8
3122 785 90662
1, 2
/ 3122 785 90851
LC4.9
3122 785 90662
1, 2
/ 3122 785 90851
MFD variant only.
LC7.x
t.b.d.
JL2.1
3122 785 90861
