18
BDP-LX55
1
2
3
4
A
B
C
D
E
F
1
2
3
4
5. DIAGNOSIS
5.1 DIAGNOSIS FLOWCHART
1) No display on VFD, and buttons do not work
No
No
Yes
Yes
No displ
a
y on VFD,
a
nd
b
u
ttons do not work
Check every s
u
pply
volt
a
ge on MAIN BOARD ASSY
Check the connect line is OK
Correct connection
Repl
a
ce SW1, SW2,
a
nd SW
3
,
Yes
No
No
Check the FRONT BOARD
ASSY sign
a
ls VCLK,VD, VSTB,
(XS1
3
5:pin
3
,4,5)
Check whether the circ
u
it
connected to SW1, SW2
a
nd
SW
3
a
re broken.
Check Q15,Q206
a
nd Q214
is fixed on the
MAIN BOARD ASSY
Yes
is norm
a
l
Fix it
Содержание BDP-53FD
Страница 82: ...82 BDP LX55 1 2 3 4 A B C D E F 1 2 3 4 A MAIN BOARD ASSY A XP1 XP8 SIDE B ...
Страница 83: ...83 BDP LX55 5 6 7 8 5 6 7 8 A B C D E F A CON3 XP6 XP1 XP10 XP5 XP7 SIDE B ...
Страница 85: ...85 BDP LX55 5 6 7 8 5 6 7 8 A B C D E F B XP8 XS135 A XP6 XS221 A XS135 XS221 SIDE B SIDE A ...