![Sony BDP-BX2 Скачать руководство пользователя страница 97](http://html.mh-extra.com/html/sony/bdp-bx2/bdp-bx2_service-manual_391596097.webp)
9-8
BDP-BX2/S360
FL/FR Board flowchart (1/3)
Power button on the main unit does not wor
Ke
y1 does not o
p
erat
e
Does symptom improve when
replacing the FL board?
Is there voltage of about 3.3V at pi
n
13 of CN701 without pressing the
ke
ys?
No
To IFcon section flowchart
Yes
Yes
The potential of pin 1 of CN331 doe
s
not change from 3.3V to near 0V
when
pressin
g the
power butto
n
Check pattern and S331 might be
Check the resistance of resistors o
f
Key1 line. Also check the surrounding
pattern.
Yes
Disconnected harness or replace F
L
board.
Ke
y o
p
erations cannot be made o
n
Ke
y2 does not o
p
erat
e
Does symptom improve when
replacing the FR board?
No
To IFcon section flowchart
Is there voltage of about 3.3V at pi
n
14 of CN701 without pressing the
ke
ys?
No
To IFcon section flowchart
Yes
Yes
Which row of keys do not operate?
Reference: Relationship of Buttons and Voltages
Check the resistance of resistors o
f
Key2 line. Also check the surrounding
pattern.
STOP buttons
-> To
Ke
y1 does not o
perat
e
OPEN/CLOSE button
-> To
Ke
y2 does not o
perat
e
PLAY button
-> To
Ke
y3 does not o
perat
e
Ke
y3 does not o
p
erat
e
Is there voltage of about 3.3V at pi
n
15 of CN701 without pressing the
ke
ys?
No
To IFcon section flowchart
Yes
Check the resistance of resistors o
f
Key3 line. Also check the surrounding
pattern.
www. xiaoyu163. com
QQ 376315150
9
9
2
8
9
4
2
9
8
TEL 13942296513
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299