10
1. No Raster
6. Trouble Shooting
Stand-By LED Check
Check R817
DC 3.3V
Check
Q809, Q810, I806
Check I804
Check #4 of I801
Check #1 of I801
(Switching)
Check #1 of I801
(DC 300V)
Check D801~D804
And D809~D810, LF802
Check/Replace F801
Check
Stand-By Circuit
Power On
check with
Remote controller
Check
Remote controller
And IR Circuit
Check/Replace Q809~Q810,
DP142 And peripheral parts
Replace I804
or Check/Replace D807
Check/Replace
R805, T801
Check
secondary
voltage
(Output voltage
of T801)
Next
page
Replace
I801
Replace
this parts
Check
power cord
End
Abnormal
Normal
*
Summary of Contents for DUA-3270GB
Page 4: ...4 2 Block Diagram 1 Analog Part ...
Page 19: ...19 7 Schametic Diagram 1 ALALOG MAIN PART ...
Page 20: ...20 Schametic Diagram 2 POWER PART ...
Page 21: ...21 Schametic Diagram 3 DIGITAL MAIN PART 1 ...
Page 22: ...22 Schametic Diagram 3 DIGITAL MAIN PART 2 ...
Page 23: ...23 Schametic Diagram 3 DIGITAL MAIN PART 3 ...
Page 24: ...24 8 Printed Circuit Board 1 Main PCB ...
Page 25: ...25 Printed Circuit Board 2 Power PCB ...
Page 26: ...26 Printed Circuit Board 3 Digital PCB Top ...
Page 27: ...27 Printed Circuit Board 4 Digital PCB Bottom ...
Page 28: ...28 Printed Circuit Board 5 CRT PCB 6 Union PCB ...
Page 29: ...29 9 Mechanical Exploded Diagram _ p p ª ø L fl T Œx bª Ø L fi Ø p fi Ø 9 p L ...