19" LCD Color Monitor
HSD HQ191D
37
8.2 Trouble Shooting
8.2.1 Main Board
No Power
No power
Press power key and look
if the picture is normal
Please reinsert and make sure
the AC of 100-240 is normal
Measure U702 Vout=3.3V
Q702 Vc=1.8V
Reinsert or check the
Adapter/Inverter
section
X401 oscillate waveforms
are normal
Check CN701 or replace
U702, Q702
NG
Summary of Contents for HQ191D
Page 4: ...19 LCD Color Monitor HSD HQ191D 4 1 Monitor Specifications h t t p w w w w j e l n e t ...
Page 6: ...19 LCD Color Monitor HSD HQ191D 6 Dimensions h t t p w w w w j e l n e t ...
Page 9: ...19 LCD Color Monitor HSD HQ191D 9 h t t p w w w w j e l n e t ...
Page 10: ...19 LCD Color Monitor HSD HQ191D 10 h t t p w w w w j e l n e t ...
Page 11: ...19 LCD Color Monitor HSD HQ191D 11 h t t p w w w w j e l n e t ...
Page 12: ...19 LCD Color Monitor HSD HQ191D 12 h t t p w w w w j e l n e t ...
Page 29: ...19 LCD Color Monitor HSD HQ191D 29 7 PCB Layout 7 1 Main Board h t t p w w w w j e l n e t ...
Page 30: ...19 LCD Color Monitor HSD HQ191D 30 h t t p w w w w j e l n e t ...
Page 31: ...19 LCD Color Monitor HSD HQ191D 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 HSD HQ191D 32 h t t p w w w w j e l n e t ...
Page 33: ...19 LCD Color Monitor HSD HQ191D 33 h t t p w w w w j e l n e t ...
Page 34: ...19 LCD Color Monitor HSD HQ191D 34 7 3 Key Board h t t p w w w w j e l n e t ...
Page 35: ...19 LCD Color Monitor HSD HQ191D 35 7 4 Audio Board h t t p w w w w j e l n e t ...
Page 44: ...19 LCD Color Monitor HSD HQ191D 44 10 Monitor Exploded View h t t p w w w w j e l n e t ...