JRC JCY-1850 Instruction Manual page 19

6. Checking the System Operation
When the Recording Control Unit, the Operation Panel Unit, the Protective Capsule Unit, the
Microphone Unit and the option unit are all on, and when they operate normally, LEDs on
the Main Control Board, the Power Supply Unit in the Recording Control Unit and the
Operation Panel Unit display as follows.
LEDs on the Main Control Board of the Recording Control Unit:
1) The REC LED is on.
2) The CARD LED is on.
3) The MEDIA LED is off.
LEDs on the Power Supply Unit of the Recording Control Unit:
1) The POWER LED is on.
2) The BATT. ABN LED is off.
3) The BATT. OP. LED is off.
4) The FAN ABN. LED is off.
LEDs on the Operation Panel Unit:
1) The POWER LED is on.
2) The RECORDING LED is on.
3) The ALARM LED is off.
4) The ERROR CODE LEDs are off.
* The four digit LEDs indicate error code when the equipment detects a trouble.
5
1. Operation