28LD5200E (PW1L)
6. Self-Diagnosis Function
Signal circuit check mode: It indicates the check result on some points of the signal circuit and the history of them with On-Screen Display (OSD).
Signal circuit self-diagnosis function
This function is for the failure of the signal circuit, for example the phenomenon as below:
"Sometimes power turns off abnormally." "Sometimes picture disappears abnormally."
To enter to this Self-Diagnosis mode, follow the next steps:
Preparation:
1) The Power Cord should be connected to AC line and the Main Power switch should be turned on.
2) Turn the power off by the SUB-POWER( ) button of the monitor or the remote control.
Procedure:
1) Press the SUB-POWER( ) button and button on the bottom of the monitor at the same time, and keep it for more than 5 seconds after the power turned on.
2) The monitor will be turned on, and it will display On-Screen Display of the Self-check result and the failure history as below.
3) Any operation would cancel the Self -Diagnosis mode.
4) The following table shows the OSD symbols and contents of failure PWB in which failure most probably would be allocated according to the number of blinks.
Check result [OSD]
Check item
Self Check
H11: OK H15: OK
Self check result area
H16: OK H31: OK
H32: OK H33: OK
F63 F63 - - - - - - - - - Failure history area
Latest error code
Code stored up in Self checking Problem PhenomenonCause
failure history item
(
C10* No sync. (Snow noise) OSD of ! Check Antenna No connection of ANT cable
appears. Preset tuning is not yet
(
H11* Tuner problem Cannot receive the main Communication error of U101
signal from antenna
H15 Composite video SW IC Cannot receive picture and Communication error of I201
problem audio
Cannot change input mode
H16 Component video SW IC No component picture Communication error of I202
problem Cannot change input mode
H31 Color demodulator IC Abnormal color Communication error of I501
problem Dark picture
H32 Sync. separator IC Unsynchronized picture Communication error of I601
problem
H33 3D Y/C separator IC Abnormal color Communication error of I302
problem Dark picture / No picture
(
H71* T/Text IC problem No T/Text Communication error of IT01
No picture
(
H72* Sound MPX IC problem No sound from antenna Communication error of IN01
Cannot change MPX
sound
2
F63 IC-bus latch problem Cannot store setting data SCL3/SDA3 latched up
(Ex. Channel, Volume etc.)
*) This code is no meaning for the models except 32/42PD5000TA because those are without tuner circuit.
If you clear history of failure, make FACTORY RESET: enter the factory setting mode; press the SUB-POWER( )
button, INPUT SELECT( ) button and button on the bottom of the monitor at the same time. And keep it for
more than 5 seconds after the power turned on.
22 |
ACEC
