LG Electronics T730BH, T730BHKL service manual

COLOR MONITORSERVICE MANUAL

Website:http://biz.LGservice.com

E-mail:http://www.LGEservice.com/techsup.html

CAUTION

BEFORE SERVICING THE UNIT,

READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

T730BH(K)

(T730BHKL-K***E*)

CHASSIS NO. : CA-136

(T730SHKL-K***E*)

( ) **Same model for Service

*Same looking with new chassis.

T730SH(K)

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