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Service modes, fault finding and repair tips

GB 17

FTV1.9DE

waveform pictures) that will bring you to the next step in the
faultfinding process.
A question could be: Do you see snow? (Click on the correct
answer)
YES / NO
An example can be: Measure testpoint I7 and click on the
correct oscillogram you see on the oscilloscope

Figure 5-2

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.

Additional features
Beside fault finding, ComPair provides some additional
features like:
•

Uploading/downloading of pre-sets

•

Managing of pre-set lists

•

Emulation of the Dealer Service Tool

5.8.3

Searchman (Electronic Service Manual)

If both ComPair and SearchMan are installed, all the
schematics and PCB's of the faulty set are available when
clicking on the hyper-link of a schematic or a PCB in ComPair.
Example : Measure the DC-voltage on capacitor C2568
(Schematic/Panel) at the Monocarrier.
Clicking on the PCB hyper-link, automatically shows the PCB
with a highlighted capacitor C2568. clicking on the schematic
hyper-link, automatically shows the position of a highlighted
capacitor C2568 at the schematic.

5.8.4

Connecting the ComPair interface

The ComPair Browser software should be installed and setup
before connecting ComPair to the FTV1.9. (See the ComPair
Browser Quick Reference Card for installation instructions):
1.

Connect the RS232 interface cable to a free serial (COMM)
port on the PC and the ComPair interface PC connector
(connector marked with "PC").

Place the ComPair interface box straight in front of the
television with the infrared window (marked "IR") directed
to the television LED. The distance between ComPair
interface and television should be between 0.3 and 0.6
meter. (Note: make sure that (also) in the service position,
the ComPair interface infra red window is pointed to the
standby LED of the television set (no objects should block
the infra red beam)

Connect the mains adapter to the connector marked
"POWER 9V DC" on the ComPair interface

Switch the ComPair interface OFF

Switch the television set OFF with the mains switch

Remove the rear cover of the television set

Connect the interface cable (4822 727 21641) to the
connector on the rear side of the ComPair interface that is
marked "I2C" (See Figure 5-4)

Connect the other end of the interface cable to the
ComPair connector AVC34 (0334) at the right/bottom side
of the AV-Control panel.

Plug the mains adapter in the mains outlet and switch ON
the interface. The green and red LED's light up together.
The red LED extinguishes after approx. 1 second (the
green LED remains lit).

10. Start-up Compair and select "File" menu, "Open...:; select

"FTV1.9 Fault finding" and click "OK"

11. Click on the icon (Fig. 5-3) to switch ON the communication

mode (the red LED on the Compair interface wil light up)

12. Switch on the television set with the mains switch
13. When the set is in standby. Click on "Start-up in ComPair

mode from standby" in the ComPair FTV1.9 fault finding
tree, otherwise continue.

Figure 5-3

Figure 5-4

The set has now started up in ComPair mode. Follow the
instruction in the FTV1.9 fault finding tree to diagnose the set.
Note that the OSD works but that the actual user control is
disabled

5.8.5

Preset installation

Presets can be installed in 2 ways with the FTV1.9.
•

Via infra red
–

only sending TO the television

–

the rearcover does NOT have to be removed

Click on "File" "Open" and select "TV - use ComPair as DST"
to use infra red
•

Via cable
–

sending TO the television and reading FROM the
television

–

the rearcover has to be removed