Sony DSR-570WS Service Manual page 51

Note 1
13 pin (BATT IND IN)
The EXT VTR connected to the EXT VTR connector (CCZ 26pin) has a battery voltage detection circuit
and warning signal output circuit. The circuit informs the camera of the battery voltage drop by sending
the following signal to pin 13. The camera uses the LED on the viewfinder to warn the user the condition.
VTR battery voltage
Spec.
LED in viewfinder
Note 2
Pin 15 (REC ALARM IN)
This signal indicates the operating status of VTR. The specifications of the signal is shown below.
5.0 ±1.0 V
Spec.
2.5 ±0.5 V
0 ±0.3 V
VTR POWER
"OFF"
VTR ALARM :
VTR operation
VTR RECORD :
VTR RESET :
DSR-570WS/570WSP V1
More than 11.1 Vdc 10.8 to 11.1 Vdc
1 ±0.2 Hz or 4 ±0.8 Hz
(duty 50 ±1 %)
2.5 ±0.5 V
0 ±0.5 V
Goes out Blinks
1 ±0.2 Hz or 4 ±0.8 Hz
(duty 50 ±1 %)
VTR POWER
"ON"
When an abnormality is detected in VTR.
When the VTR has started recording.
When the VTR is recording.
When the recording is stopped from VTR side.
VTR ALARM VTR RECORD
Less than 10.8 Vdc
Lights
REC
RESET
10 to
100 ms
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