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30" Wide LCD-TV Color Monitor LMT2 300WN5
Service
Service
Service
300WN5QS/97
Horizontal frequencies
TABLE OF CONTENTS 31 - 49 kHz
Description Page Description Page
Important Safety Notice..................................2 Scaler-Up Diagram.........................................47
Technical Specification...................................3~4 Video Converter Diagram................................48
Connecting The Monitor..................................5~7 HDTV Decoder Diagram..................................49
Control and Inputs..........................................8~11 Painter Diagram............................................ .50
OSD User Mode.............................................12~17 PC DVI_Digital Diagram..................................51
Warning Message...........................................18 TMDS_Rx Diagram.........................................52
Troubleshooting.............................................19~20 Audio Delay Diagram......................................53
Failure Mode of LCD Panel............................. 21 Audio Board Diagram-1...................................54
Definition of Pixel Defects...............................22 Audio Board Diagram-2...................................55
Wiring Diagram..............................................23 Key Control Board Diagram and C.B.A.............56
Mechanical Instructions..................................24~25 IR PCB Diagram and C.B.A .............................57
Display Adjustment........................................26~27 Rs232 PCB Diagram and C.B.A.......................58
Safety Test Requirements...............................28 Audio Out Jack PCB and C.B.A........................59
DDC Instructions............................................29~32 TV Box PCB(Video) Diagram. .........................60~64
DDC Data.................................................... .33~34 TV Box PCB(TV) Diagram...............................65~69
Repair Flow Chart..........................................35~38 Scaler PCB C.B.A-1 and -2..............................70~71
Function Block Diagram..................................39 Audio PCB C.B.A............................................72
Power Diagram..............................................40 TV Box PCB(Video) C.B.A...............................73
I/O & Interface Diagram..................................41 TV Box PCB(TV) C.B.A...................................74
Video Decoder Diagram..................................42 Power Circuit Diagram and C.B.A....................75~76
Scaler Diagram..............................................43 Exploded View................................................77
LVDS Tx Diagram......................................... .44 Spare Parts List..............................................78~81
SDRAM Diagram............................................45 Different Part List............................................82~87
PC-Analog In Diagram....................................46
SAFETY NOTICE
ANY PERSON ATTEMPTING TO SERVICE THIS CHASSIS MUST FAMILIARIZE HIMSELF WITH THE CHASSIS
AND BE AWARE OF THE NECESSARY SAFETY PRECAUTIONS TO BE USED WHEN SERVICING ELECTRONIC
EQUIPMENT CONTAINING HIGH VOLTAGES.
CAUTION: USE A SEPARATE ISOLATION TRANSFORMER FOR THIS UNIT WHEN SERVICING.
REFER TO BACK COVER FOR IMPORTANT SAFETY GUIDELINES
Published by BCU Monitor Printed in Taiwan