Hitachi 50PD9800TA Service Manual page 33

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 by the control panel or by control panel the remote control.
Procedure:
1) Press the SUB-POWER( ) button and INPUT (
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 item
Code stored up in
failure history
C02
H11
H15
H16
H71
H72
F63
If you clear history of failure, make FACTORY RESET: enter the factory setting mode; press the SUB-POWER(
) button and button on the control panel at the same time. And keep it for more than 5 seconds after the
power turned on.
Cannot insert an antenna cable and an RGB cable at the same time.
By an objection from the customer whom it is not given to insert the ANT input and an RGB cable, I offer an
RGB cable of a thin type to a customer.
50PD9800TA (FW1)
Check result
Self Check
H 1 1 : O K
H 1 6 : O K
H 71: O K
C02 F63 - - -
Latest error code
Self checking Problem
item
FAN problem
Tuner problem
Audio SW IC
problem
Video SW IC
problem
HDMI IC
problem
Sound processor
problem
2
I C-bus latch problem
) button on the side of the monitor at the same time,
[OSD]
H 1 5 : O K
Self check result area
H 32: O K
H 72 : O K
F a ilure history area
- - - - - -
Phenomenon
No picture and sound
Cannot receive the main
signal from antenna
Cannot receive audio
Cannot change input mode
Cannot receive picture.
Cannot change input mode
No picture
Cannot receive audio
no sound
Cannot store setting data
(Ex. Channel, Volume etc.)
33
Cause
FAN Motor has stopped
Communication error of UT01
Communication error of IY02
Communication error of IY01
Communication error of IH05
Communication error of IT01
SCL3/SDA3 latched up