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waveform (sound) abnormal
T33 MP3 abnormal sound
T34 Audio no waveform (sound) or waveform (sound) abnormal
Earphone Test
T41 Earphone no sound or the sound has pause, abnormal sound, noise, echo
T42 Earphone (right) no sound or the sound has pause, abnormal sound, noise
T43 Earphone (left) no sound or the sound has pause, abnormal sound, noise
T44
Wierless Earphone no sound（Option）
Function Key Test
T51 Video can’t be still or stop
T52 Can’t execute fast forward or rewind
T53 Panel button
System Setting Test
T61 Can’t enter the system setting
T62 The system can not be played or it is down after the system is set
TFT Test
T71 TFT image and color error
T72 TFT image is black and white
T73 TFT image shakes and is distorted
T74 TFT ripple
Card Reader Test
T81 Wrong Card
T82 Can’t read SD Card
T83 Can’t read MMC Card
6.2 Debug & Trouble Shooting
z Please check the PCBA for any missing components and bad soldering
z T01
、
No Power
9 Main Board
A. Check for components EC17, EC15 , EC19 , EC39 , EC40 on the Main Board
to see if there are any short circuits.
B. Check for component the pin3 of J5 on the Main Board is higher than 2.3V.
C. Check the components on the Main Board for any burnt marks.
D. Check the components L8, L44, L104, D6, D13 on the Main Board for any burnt
marks.
E. If none of the above actions is effective, please change Main Boards.
z T02
、
Power LED indicator not on or insufficient brightness
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