-
2
2
-
C.
Remove the top cover, check all flat cables in the system to see if they are
correctly plugged to the fixed positions, or re-plug them.
D. Check the capacitors C
E2
9 and the diode D
11
to see if the reset circuit works normally.
E
.
If the above actions are not working, replace the Main Board.
9
DVD ROM
A.
Check the loader to see if it is not stable (any condition that some of the discs
can’t be played). If so, replace the loader.
9
DVD DISC
A.
Check the Test Disc to see if there is any serious scratch or ring shape, circular
shape scratches, if so, replace the Test Disc and test again.
z
T08
Ε
Power on unstable
9
Main Board
A.
Remove the top cover, check all flat cables in the system to see if they are
correctly plugged to the fixed positions, or re-plug them.
B.
Check the
U6
to see if it works normally with a 1.8
V
output voltage.
C. Check the reset circuit.
D
.
If the above actions are not working, replace the Main Board.
z
T09
Ε
Abnormal sound in the
system
(Power on abnormal sound)
9
DVD ROM
A.
Check the loader to see if it is the source of the abnormal sound. If so, replace
the loader.
B.
If the abnormal sound comes from the audio speakers, check the audion
z
T1
0
Ε
Can't read the disc
(NO DISC)
9
Main Board
A.
Remove the top cover, check the 2
4
-pin flat cable in the system to see if they
are correctly plugged to the fixed positions, or re-plug them.
B.
Check the resistors or resistor-array adjacent to U8 and U7 to see if there is
any hollow soldering or cold soldering.
NPN 3904 type Q
11
/
12
/1
4
/1
5
/1
6
/
25
to confir
m
the mute circuit works
normally. If not ,change the audion.
C
.
If the above actions are not working, replace the Main Board. If it is still not
working, replace the loader.
9
DVD ROM
A.
Check the loader to see if it can’t read. If so, replace the loader.
z
T1
1
Ε
Disc drive no action or locked
9
Main Board
A.
Remove the cover. Check to see if it is caused by mis-assembly.
B.
Check the resistors or capacitors adjacent to U8 to see if there is any hollow
soldering or cold soldering.
C.
If the above actions are not working, replace the loader. If it is still not working,
