Hitachi 55HDM71 - 55" Plasma Panel, Service Manual

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55PMA550 / 55HDM71 (PW1)
1 5
Diagnosis Mode
With unit in standby mode
(turned off), press and hold: >
After the unit comes on, continue to hold the
buttons down until the initial OSD goes
away. OSD will then appear indicating that
the
DIAGNOSIS MODE is engaged.
DIAGNOSIS MODE
This chassis has a limited self-diagnosis mode. When activated, the microprocessor generates a series
of internal communication checks and outputs the results via OSD, as seen on the table below. Since
it uses the OSD to display the results, any circuit failures which result in a “no display” or “no pic-
ture” condition will not be able to be seen, obviously. ANY operation (volume, channel, menu, input,
etc.) will cause the unit to exit from the Diagnosis mode.
14
SERVICE MODE ACCESS
DIAGNOSIS MODE
Code Problem Phenomenon Cause
H11* Tuner problem Can not receive the main signal from antenna U101 error
H15 Composite video SW IC problem Can not receive picture and audio - can not change input mode I201 error
H16 Component video SW IC problem No component picture - can not change input mode I202 error
H31 Color Demodulator IC problem Abnormal color - dark picture I501 error
H32 Sync separator IC problem Unsynchronized picture I601 error
H33 3D Y/C separator problem Abnormal color - dark picture/no picture I302 error
F63 I2C Bus latch problem Can’t store data settings
SDA3/SCL3
latched up
* Only with units having a tuner circuit
- - - F63 F63 - - - - - -
H33: OK H32: OK
H31: OK H16: OK
H15: OK H11: OK
Diagnosis
Most Recent Failure
Codes
Results