-15-
6
3
4
1
When you push the any Key,
is there any beep sound?
Does the display operate?
No
Yes
No
2
Is the connector connected
to PCB?
Power Off
No
Yes
Reconnect or
repair the
connector.
Is there any beep sound in
continuity test between the
power code and connector ?
- Code “L” to Pin1
- Code “N” to Pin3
No
Yes
Check PCB
Go to No. 6 of
This flow chart.
Go to No. 6 of
this flow chart.
Is there any beep sound in
continuity test between the
ends of fuse?
Yes
No
Replace the
Fuse.
5
Is there any beep sound in
continuity test between the
ends of the noise filter?
Yes
No
Replace the
Noise filter.
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
Replace the PCB.
(EBR67471707)
L
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