5 Self-check function
When phenomena like "the power fails from time to time" or "the video/audio fails from time to time" can not be confirmed at the
time of servicing, the self-check function can be used to confirm the occurrence and to limit the scope for the defective circuits.Also,
when "the power fails from time to time", display of the color bar on the screen can be used to confirm the occurrence and to limit
the scope for the defective circuits.
5.1. How to access
5.1.1. Access
Produce TV reception screen and, while pressing [VOLUME-] button on the main unit, press [SLEEP] button on the remote
controller unit simultaneously.
5.1.2. Exit
When one of the buttons for channel selection etc. is pressed, the display returns to the normal screen.
5.2. Screen display
5.3. Display phenomenon and treatment method
Display symbol Phenomenon/condition Treatment method
H10 No output of video and audio. Replace tuner (TNR001).
H21 No audio output. Surround function not effective. Replace IC2303.
H30 No video and audio output. Input switching disabled. Replace IC4003.
H32 Black and white stripes pattern. Enhanced back light. Replace DG digital core module.
H36 White stripes on black screen. (No synchronization) Replace DG digital core module.
H45 No video. OSD and audio output are available. Replace DG digital core module.
H90 Power interrupted with self-check. Replace IC1005 on A-PCB.
H91 No OSD. Replace IC1007 on A-PCB.
H92 Video flutter. Wrong tint for DVD picture. Replace IC1008 on A-PCB.
H93 No video. OSD and audio output are available. Replace DG digital core module.
H00 DVD self-diagnosis.
H55 Abnormal voltage detected.
* Any button operation or switching off the power will reset the self-check data.
5.4. DVD self-diagnosis
Display Code Diagnosis
U- 11 Focus error
H 01 Tray loading error
02 Spindle servo error
03 Traverse error
04 Tracking servo error
05 Seek error
06 Power failure
6
TC-15DT2
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