No. MATERIALS NAME
MATERIAL REMARK
PRODUCT NAME or MODEL,TITLE
DC-AC INVERTER UNIT CXA-P1212E-WJL
PAGENAME OF DRAWING DRAWING No.
Product Drawing CTR-3859-X
TSB-08-01-05(00) form-6(A4)
QU
<The specifications may be changed without any notice.>
6
TENTATIVE
[4] Test circuit
RL1,2:Load resistance (7W min.)
CL1,2:Stray capacitor (3kV min.)
A
~
A
~
RL2
RL
1
Io2
Io1
1000:1
PROBE
V
~
Vopn
F
CN1-1
CN1-2
CN1-3
CN1-4
CN1-5
CN1-6
CN1-7
CN2-1
CN3-3
F1
CN3-1
CN2-3
IC2
IC2-1
CL2
CL1
F2
T1-7,8
T1-2
Vbr
0~2.5V
Vin
10.8~13.2V
Iin
a
b
SW1
Vrmt
5V
Vst
a
b
SW2
Rbr
0~50k
(0.025W~)
V
A
V
V
V
*About the number of the component's positon, please refer to Outline [1].
Note4-1. SW1(ON/OFF) Operation is as following; Note4-2. SW2(ON/OFF) Operation is as following;
SW2
a
b
*Voltage dimming
Vbr=0~2.5V
*Variable resistance
dimming
VR=0~50k
Operation of unit
SW1
a
b
Operation of unit
Operation
Non operation
*Vbr=0V : Brightness max.
Rbr=0 : Brightness max.
0.5V max.
4.75~5.25V
4.75~5.25V
Normal
Normal
Shutdown
Alarm Signal
(CN1-6)
*1
Shutdown Operation
*2
Load Condition
Normal
Operation
1 Lamp Open
2 Lamps Open
Note4-4.Safety Function
When any of the load is opened, the alarm output becomes 5V.
When all of the load is opened, inverter will shut down about 3
seconds.
*1.
*2.
Connection diagram of LCD module (Reference)
*Connect the High Frequency Current Meter to the Low-Voltage (VLOW) side.
DC-AC inverter
VHIGH
VLOW
VHIGH
VLOW
A
A
Lamp
Lamp
LCD module
Note 4-3.Measuring apparatus
Digital Multiple Meter(ADVANTEST R6452A or equivalent)
DC Current Meter(ADVANTEST R6452A or equivalent)
True RMS Meter(NF Circuit M2170or equivalent)
Frequency Countor(ADVANTEST R6452A or equivalent)
High Frequency Current Meter(FLUKE187or equivalent)
1000:1
High Voltage Probe(Tektronix P6015A or equivalent)
V
-
A
-
V
~
F
A
~
