EN 205.LC13EService Modes, Error Messages, and Repair Tips
5.5.4 How To Order?There was no remote control signal received or local key
pressed for > 2 hours.
ComPair order codes (EU/AP/LATAM):
?Starter kit ComPair32/SearchMan32 software and See chapter 8 for a description on the options to enable/disable
ComPair interface (excl. transformer): 3122 785 90450.?Auto Standby?.
?ComPair interface (excluding transformer): 4822 727
21631.5.6.3 Picture problems
?Starter kit ComPair32 software (registration version): 3122
785 60040.Picture too dark or too bright
?Starter kit SearchMan32 software: 3122 785 60050.?Press ?Smart Picture? button on the remote control. In case
?ComPair32 CD (update): 3122 785 60070 (year 2002, the picture improves, increase / decrease the brightness
3122 785 60110 (year 2003).value or increase / decrease the contrast value. The new
?SearchMan32 CD (update): 3122 785 60080 (year 2002), ?Personal Preference? value is automatically stored after 3
3122 785 60120 (year 2003).minutes.
?ComPair interface cable: 3122 785 90004.?After switching on the Customer Service Mode the picture
?ComPair firmware upgrade IC: 3122 785 90510 (only for is OK. Increase / decrease the brightness value or increase
sets with software upgrade facilities)./ decrease the contrast value. The new ?Personal
?Transformer (non-UK): 4822 727 21632.Preference? value is automatically stored after 3 minutes.
?Transformer UK: 4822 727 21633.
Snowy picture
Note: If you encounter any problems, contact your local Check the ?NOT TUNED? section of the Customer Service
support desk.Mode screen.
5.6Trouble Shooting TipsSnowy picture and/or unstable picture
A scrambled or decoded signal is received.
5.6.1 Scaler/TV Board Power Supply Problems
Black and white picture
In this paragraph some troubleshooting steps for checking the ?Press ?Smart Picture? button on the remote control. In case
power supply of the Scaler-board and TV-board circuitry are picture improves, increase the colour value. The new
?Personal Preference? value is automatically stored after 3
described.minutes.
?After switching on the Customer Service Mode the picture
?Measure across pin-1 and pin-4 of connector 1003 is OK. Increase the colour value. The new ?Personal
(diagram C1). +12V (13? and 15?) or +24V (20?) should be Preference? value is automatically stored after 3 minutes.
present. If the voltage is not present, probably is caused
by:
- AC to DC adaptor is defect.Menu text not sharp enough
- Short circuit in TV-board (can be isolated by connector ?Press ?Smart Picture? button on the remote control. In case
1003).the picture improves, decrease the contrast value. The new
- Fuse 1002 is open circuit. ?Personal Preference? value is automatically stored after 3
?Measure across C2923 (diagram A10). +3V3 should be minutes.
present. If not present, probably this is caused by:?After switching on the Customer Service Mode the picture
- IC7920 is defective.is OK. Decrease the contrast value. The new ?Personal
- R3925 is defective.Preference? value is automatically stored after 3 minutes.
- The power supply circuit (diagram C1) is defective (see
Scaler-board circuit trouble shooting tips).5.6.4 Sound problems
?Measure across C2913/C2933 (diagram A10). +8V3/+5V4
should be present respectively. If not present, probably this No sound or sound too loud (after channel change /
is caused by:switching on)
- IC 7910/7930 regulator is defective.After switching on the Customer Service Mode the volume is
- Fuse 1903 is defective.OK. Increase / decrease the volume level. The new ?Personal
- Switching FET 7900 is defective.Preference? value is automatically stored after 3 minutes.
- Transistor T7901 is defective.
?Measure across C2007 (diagram C1). +5V should be
present. If not present, probably this is caused by:5.6.5 Extra information/tips:
- +5V grounded by the load.
- Regulator IC 7001 is defective.?Complaints that may be caused by an incorrect system
- Control transistor T7003/7002 is defective.setting:
- Scaler power control signal line (POW-CON-SCALER - No colours
- Colours not correct
coming from TV-board) is defective.- Unstable picture
?Measure pin-4 or pin-5 of connector 1341 (diagram C5). - Noise in picture To change the system setting of a
Pin-4 should be high (+4V7) and pin-5 also should be high preset:
(+3V4). If one/both of the voltage is not present, probably 1. Press the ?MENU? button on the remote control
this is caused by:
- IC 7351 (Farouja_s2300) is defective.2. Select the INSTALL sub menu
- Inverter board is defective.3. Select the MANUAL STORE sub menu
4. Select and change the SYSTEM setting until
5.6.2 General Problemspicture and sound are correct
5. Select the STORE menu item
?The Scaler is the driving engine of the LCD panel. When
TV switched ?off? or changed channel without any user there is no display and OSD on screen, check whether
actionsound is producible on TV channel. If sound is audible,
Set switches off after ?TV SWITCHING OFF? was displayed. most likely the defective lies in Scaler board or inverter
?Auto Standby? switched the set ?off? because:board.
?There was no ident signal for more than 15 minutes. |
ACEC
