Sony IPELA SNC-CS10, Service Manual

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2-8
SNC-CS10/CS11
2-3-2. LED Operation Check
1. Click the LED
[Check]
button on the check window.
2. Check that the LED’s on the rear panel of this unit
change as follows.
Power LED:
ON
→
OFF
→
ON
→
OFF
→
...
Network LED:
Amber
→
Red
→
Green
→
Amber
→
Red
→
Green
→
...
3. Check that “Finish” is displayed on the right side of
the LED
[Check]
button.
n
When the LED does not flash, check that 9 to 11 pins of
CN901 on the CN-2861 board repeat H
5
L.
OK (repeated):
Check the operation of D905, D906 and Q902, and then
replace the defective parts.
NG (not repeated):
.
Check the harness of CN901 on the CN-2861 board to
CN403 on the SY-339 board, and if there is any
defective harness, replace it.
.
Check the pattern of IC101 from 9 to 11 pins of CN403
on the SY-339 board, and then replace the defective
parts or IC101.
2-3-3. Sensor Operation Check
1. Click the Sensor1
[Check]
button on the check
window.
2. Check that “OFF” is displayed on the right side of the
Sensor1
[Check]
button.
3. Click the Sensor1
[Check]
button on the check
window while pressing the switch on the alarm and
serial IF tool board.
4. Check that “ON” is displayed on the right side of the
Sensor1
[Check]
button.
n
If the displayed OFF/ON is not switched, turn the switch
ON and OFF again and check that 14 pin of CN901 on the
CN-2861 board changes from H to L.
Changed:
Check the signal from CN901 to IC101 on the SY-339
board, and then replace the defective parts.
Not changed:
Check the control signal of PH901, and then replace
PH901 or the peripheral defective parts.
Switch