- 21 -
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
Summary of Contents for DPC-7600
Page 7: ... 5 2 3 System Block Diagram ...
Page 10: ... 8 4 Physical Characteristics ...
Page 11: ... 9 ...
Page 12: ... 10 4 1 Outline Dimension z 210mm L x 155mm W x 43 68mm H ...
Page 13: ... 11 4 2 Spare Parts Structure Drawing DPC 7600 ...
Page 14: ... 12 ...
Page 15: ... 13 ...
Page 16: ... 14 ...
Page 17: ... 15 DPC 8600 ...
Page 18: ... 16 ...
Page 19: ... 17 ...
Page 20: ... 18 ...
Page 34: ... 32 7 Schematic 7 1 Main Board ...
Page 35: ... 33 ...
Page 36: ... 34 ...
Page 37: ... 35 ...
Page 38: ... 36 ...
Page 39: ... 37 ...
Page 40: ... 38 ...
Page 41: ... 39 7 2 Driver Board DPC 7600 ...
Page 46: ... 44 7 3 Battery Board ...