Samsung VP-L900, Training Manual

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Circuit Operating Description
Samsung Electronics 6-3
NO PIN NAME I/O POT FUNCTION
1 DC JACK DET IN Normal
+
DC JACK INPUT DETECT.
- The case where the DC JACK will be connected, INPUT : “L”
2 BATT DET IN Normal
+
BATTERY INPUT DETECT
- The case where the battery will be connected, INPUT : “L”
3 BATT V DET IN A/D
+
BATTERY voltage remaining amount detection
4 CHG CTL OUT Normal
+
CAHNGING ON/OFF CONTROL.
- The DC JACK and the case where the battery is connected
* POWER OFF MODE : “H” OUTPUT
* VCR,CAMERA MODE: “L” OUTPUT
- Only the battery the case which is connected
* P.OFF MODE : “L”OUTPUT
* VCR,CAMERA MODE: “H”OUTPUT
* TABLE 1 REFERENCE.
5 CURRENT DET IN A/D
+
Charging electric current input detection.
- Electric current quantity perception while battery charging.
* TABLE 3 REFERENCE.
6 CHG LED OUT Normal
+
CHANGING LED ON/OFF CONTROL.
- From charging mode LED indication.
* TABLE 3 REFERENCE.
* Battery charging condition : The POWER OFF mode where DC JACK or the battery is connected
<Table 6-1 Changing Spec>
DC JACK,BATT MODE
DC JACK BATT P.OFF VCR,CAMERA
CHG CTL
O O BATT : “H” “L”
output
O X “L” “L”
X O “L” “H”
<Table 6-2 CHG CTL OUTPUT>
LED DISPLAY
CHG CTL reference
OUTPUT TIME
1.99A~0.81A
1 blink “H” 6HR max
0 ~ 50% CHANGE
(3.184V~1.296V)
CHG CURRENT • 0.80A~0.41A
2 blink
50 ~ 75% CHANGE
(1.28V~0.656V)
CHG CURRENT 0.40A~0.051A
3 blink
“H” 2HR max
75 ~ 100% CHANGE
DET V (0.64V~0.0816V)
0.050A~0A
turn on
“H” 0.5HR 100% CHANGE
(0.080V~0V) “L” 0HR OFF
<Table 6-4 LED DISPLAY>
C BATT V DET reference
V < 1.6V V >
_ 1.6V
CHG TIMMING “H” BATT
CTL reference Charge
Trickle CTL “H” “L” MODE
<Table 6-3 CHG CTL,TRICKLE CHG OUTPUT>