Philips TPS2.1E LA Service Manual page 14

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EN 14
5.
TPS2.1E LA
General
Model. Philips Model type.This information is very helpful
for a helpdesk/workshop as reference for further diagnosis.
In this way, it is not necessary for the customer to look at
the rear of the TV-set. Note that if an NVM is replaced or is
initialized after corruption, this set type has to be re-written
to NVM. ComPair will foresee in a possibility to do this.
Production serial number. Displays the production serial
number of the TV. Note that if an NVM is replaced or is
initialized after corruption, this production code has to be
re-written to NVM. ComPair will foresee a in possibility to
do this.
Codes. Displays the lastest 5 error codes (Layer 2) status.
SSB. Displays the 12NC of the SSB (Small Signal Board).
Display. Displays the 12NC of the display (LCD Panel).
PSU. Displays the 12NC of PSU (Power Supply Unit).
Software versions
Software version. Displays the built-in main software
version. In case of field problems related to software,
software can be upgraded. As this software is consumer
upgradeable, it will also be published on the Internet.
NVM version. Revision (4 letter): if 1st version release,
please use V1.00 then V1.01....V1.02...etc.
PQ version. Revision (4 letter): if 1st version release,
please use V1.00 then V1.01....V1.02...etc.
Standby uP SW version. Displays the built-in stand-by
processor software version. Upgrading this software will be
possible via ComPair or via USB (see chapter Software
upgrade).Example: V1.02
Quality items
HDCP key. Valid/Invalid.
Signal quality. DTV shows (Digital %), ATV shows
(Analog Yes/No)
Audio system.Three statuses: Mono, Stereo, Dual.
Video format. Three statuses: PAL, SECAM, NTSC.
How to Exit CSM
Press "MENU" on the RC-transmitter.
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 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. No
2
knowledge on I
C or UART commands is necessary,
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 up possibilities.
Specifications
ComPair consists of a Windows based fault finding program
and an interface box between PC and the (defective) product.
The 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.
2009-Apr-10
Service Modes, Error Codes, and Fault Finding
5.3.2
5.4
5.4.1
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
HDMI
2
I
C only
Figure 5-1 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.
Software is available via internet:
http://www.atyourservice.ce.philips.com
ComPair UART interface cable for TPM2.1E.
(using 3.5 mm Mini Jack connector): 3104 311 12742.
Note: While having problems, contact the local support desk.
LVDS Tool
Support of this LVDS Tool has been discontinued.
Error Codes
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 occurs, it is added to the list of errors, provided
the list is not full. 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).
To prevent that an occasional error stays in the list forever, the
error is removed from the list after more than 50 hrs. of
operation.
When multiple errors occur (errors occurred within a short time
span), there is a high probability that there is some relation
between them.
TO
UART SERVICE
CONNECTOR
2
I
C
RS232 /UART
ComPair II Developed by Philips Brugge
Optional power
5V DC
10000_036_090121.eps
090121

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