![background image](http://html1.mh-extra.com/html/viewsonic/va730m-1-vs11383/va730m-1-vs11383_service-manual_1020973018.webp)
ViewSonic Corporation
Confidential - Do Not Copy
1-6 .Insulation Resistance
1) Test Requirements – Input Voltage : 500Vdc
– Temperature : 25 ± 5
℃
℃
2) A method of measurement : Test between Utility (live and neutral short) and output line (+ and - short).
(insulation resistance test)
3) Criterion for Judging : Insulation resistance 100M
Ω
2
≧
.INVERTER TEST: 2-1.OPEN LAMP
PROTECT TEST :
Test Condition : ON/OFF PIN=3.3Vdc or 5.0Vdc , BL-Adj PIN=3.3Vdc or 5.0Vdc . Result : CN901~CN904
OPEN , INVERTER TURN ON CONTINUE 1~2 SECONDS SHUT DOWN .
2-2. KICK-OFF VOLTAGE TEST :
Test Condition : ON/OFF PIN=3.3Vdc or 5.0Vdc , BL-Adj PIN=3.3Vdc or 5.0Vdc .
Result : CN901~CN903 TEST CN904 H.V PIN Output Voltage
≧
1.5KV rms .
CN902~CN904 CONNECT TEST CN901 H.V PIN Output Voltage
≧
1.5KV rms .
CN903 .CN904 .CN901 CONNECT TEST CN902 H.V PIN Output Voltage
≧
1.5KV rms .
CN901 .CN902 .CN904 CONNECT TEST CN903 H.V PIN Output Voltage
≧
1.5KV rms .
2-3 . OUTPUT CURRENT TEST :
Test
Condition
Result
CN802 Pin
24V GND
CN802
BL-Adj
PIN
CN802 Pin
ON/OFF
CN901~CN904
6.5±0.5mA
/
50±5KHz
22~28Vdc
3.3Vdc
3.3Vdc or
5.0Vdc
17'' or 19''
PANEL
7.0±0.5mA /
50±5KHz
7.5±0.5mA /
50±5KHz MEET L
NEED
Jumper
22~28Vdc
0Vdc
3.3Vdc or
5.0Vdc
17'' or 19''
PANEL
3.5±0.5mA
22~28Vdc
0Vdc or
3.3Vdc
0Vdc
17'' or 19''
PANEL
NO Output
OLD TEST
CN801 Input 100~240Vac , CN802 BL-Adj Pin CONNECT 3.3Vdc , CN802 ON/OFF Pin CONNECT
3.3Vdc OR 5.0Vdc ,
ATTENTION
1.WHEN OPERATION, WEAR STATIC ELECTRICITY RING AND KEEP GND.
2.TO PREVENT A SHORT CIRCUIT.
3.CON801 / C809 / C802 / C803 / BD801/ Q801 / T801/T802/T901/ THESE LARGE VOLUM MUST
WEIGHT A LOT
.
.
1
5
V
G
730m-3_VA730m-1
Summary of Contents for VA730m-1 VS11383
Page 27: ...ViewSonic Corporation Confidential Do Not Copy 24 VG730m 3_VA730m 1...
Page 37: ...ViewSonic Corporation Confidential Do Not Copy 34 VG730m 3_VA730m 1...
Page 38: ...ViewSonic Corporation Confidential Do Not Copy 35 VG730m 3_VA730m 1...
Page 47: ...ViewSonic Corporation Confidential Do Not Copy 44 Setp5 5 Ckeck the DDC VG730m 3_VA730m 1...