DVR-LX60D
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6.9 USB CHECK MODE
Remote control unit
supplied with the unit
(VXX3221)
[Purposes]
[Tools to be used]
[How to quit]
[How to enter this mode]
[Procedures]
Remote control unit for servicing
(GGF1381)
As this unit is provided with two USB
ports, operation checks of these ports
are possible by connecting them (loop
connection).
1. Connect Connector A (at the front panel) and Connector B (at the front panel), using a USB cable.
2. Enter USB Check mode.
Press the ESC key on the remote control unit for servicing then press the TIMER REC key on the remote control unit
supplied with this unit.
To quit while the ports are operating properly ("USB CHK OK" is lit.): Press the ESC key or the clear key.
To quit while port operation is abnormal: Turn the power off then back on.
1. Check the indication on the FL display.
When the two ports are operating properly: "USB CHK OK" is lit.
When port operation is abnormal: "USB CHK NG" is lit.
2. When "USB CHK OK" is lit in Step 1, disconnect the USB cable in order to perform the
detachment/attachment
test.
The indication on the FL display will change, as follows:
If the result is OK: "USB CHK OK" will flash.
If the result is not OK: "USB CHK OK" will remain lit.
[Troubleshooting]
Possibility of contact between USB connectors A (at the front panel) and B (at the front panel).
Possibility of breakage of the internal flexible cables that connect USB connector A (at the front
panel) and B (at the front panel) with the control circuitry on the MAIN Assy.
EMMA2RFEX on the MAIN Assy is in failure.
"USB CHK OK"
is lit on the FL
display.
Is the USB cable OK?
(Perform USB checking, using
another USB cable.)
Enter USB Check mode.
"USB CHK OK" flashes.
Disconnect the USB cable.
USB-port test: OK
"USB CHK OK" remains lit,
indicating that the result of the
detachment/attachment test is not OK.
The USB cable is
defective.
"USB CHK NG" is lit on the
FL display, indicating port
operation is abnormal.
Yes
Yes
Yes
No
No
No
No
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USB cable
(GGD1445)
Содержание DVR-550HX-S
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