![I-Inc AG191D Service Manual Download Page 38](http://html1.mh-extra.com/html/i-inc/ag191d/ag191d_service-manual_602121038.webp)
19" LCD Color Monitor
I-INC AG191D
38
2.) No Backlight
Check C811 (+) =12V
NG
OK
Check power section
Check ON/OFF signal
Check Interface section or main board
NG
OK
Check IC801 Pin1/pin15 have the output of sawtooth wave at short time
Check Q805/Q806 pin5/pin8 is 12V?
Check PT801/PT802 pin7/pin8= 650V?
Cut all the pin connector of Q805/Q806, check C811 (+)=12V?
Unplug backlight connector wire, check
PT801/PT802 pin7/pin8 = 650V?
OK
Replace backlight
Replace PT801/PT802
OK
NG
Check Q801 Q802
Summary of Contents for AG191D
Page 6: ...19 LCD Color Monitor I INC AG191D 6 Dimensions h t t p w w w w j e l n e t ...
Page 9: ...19 LCD Color Monitor I INC AG191D 9 h t t p w w w w j e l n e t ...
Page 10: ...19 LCD Color Monitor I INC AG191D 10 h t t p w w w w j e l n e t ...
Page 11: ...19 LCD Color Monitor I INC AG191D 11 h t t p w w w w j e l n e t ...
Page 12: ...19 LCD Color Monitor I INC AG191D 12 h t t p w w w w j e l n e t ...
Page 28: ...19 LCD Color Monitor I INC AG191D 28 7 PCB Layout 7 1 Main Board h t t p w w w w j e l n e t ...
Page 29: ...19 LCD Color Monitor I INC AG191D 29 h t t p w w w w j e l n e t ...
Page 30: ...19 LCD Color Monitor I INC AG191D 30 h t t p w w w w j e l n e t ...
Page 31: ...19 LCD Color Monitor I INC AG191D 31 7 2 Power Board h t t p w w w w j e l n e t ...
Page 32: ...19 LCD Color Monitor I INC AG191D 32 h t t p w w w w j e l n e t ...