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Computer Monitor
LG Electronics
T730BH, T730BHKL
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Contents
Main
COLOR MONITOR SERVICE MANUAL
MODEL:
CONTENTS
SPECIFICATIONS
SAFETY PRECAUTIONS
Leakage Current Hot Check Circuit
CAUTION:
SERVICING PRECAUTIONS
Page
Page
TIMING CHART
* No Composite Mode.
Sync
Video
F
DIS A S S E MB LY
(b)
(c)
(a)
WIRING DIAGRAM
FBT
- 9 -
BLOCK DIAGRAM
5V
80V
50V
6.3V
DESCRIPTION OF BLOCK DIAGRAM
.
Page
1. Preparation for Service Adjustment
ADJUSTMENT PROCEDURE & METHOD
2. Adjustment by Service Hot key How to enter SVC HOT KEY
ADJUSTMENT
Page
Page
3. Adjustment Using Service software Program (Adjustment Program)
4. EDID Data Edit Us ing Serv ice so ftware Program
- 18 -
Figure 1. Cable Connection Figure 1. Cable Connection
- 18 -
C
B
F
E
TROUBLESHOOTING GUIDE
1. NO POWER
Waveforms
2. NO CHARACTER
3. NO RASTER
4. NO VERTICAL DEFLECTION
5. TROUBLE IN DPM
Waveforms
DPMS TABLE
6. NO DEGAUSSING
7. H_Deflection Failure
8. Invariable H_Size
9. TROUBLE IN H-LINEARITY
10. Abnormal H_Size
11. Side Pin or Trap Failure
12. Para. or Pin Balance Failure
13. Tilt Failure
14. V Size or Pos. Variation Failure
15. High Voltage Failure
16. ABL Failure
17. Focus Failure
18. Micom Failure
19. OSD Failure
20. User Control Failure
21. Missing Color
22. Visible Retrace
23. Purity Failure
24. Misconvergence
25. Poor Focus
EXPLODED VIEW
B A
a b
b
EXPLODED VIEW PARTS LIST
REPLACEMENT PARTS LIST
Page
Page
Page
Page
REPLACEMENT PARTS LIST
Page
Page
Page
Page
SCHEMATIC DIAGRAM