Horizontal frequencies
30 - 63kHz
Service
Service
Service
TABLE OF CONTENTS
Published by BCU Monitors
Printed in suzhou
Copyright reserved
Subject to modification F May .23 2006
Description
Page
Important Safety Notice---------------------------------- 2
Technical Data/Installation----------------------------3~7
On-Screen Display------------------------------------8~11
Aging Mode/OSD LOCK/UNLOCK--------------------12
Trouble shooting-------------------------------------15~17
Failure Mode Of Panel-----------------------------------18
Factory Mode/Warning message-----------------13~14
Safety Test Requirements ------------------------------19
Mechanical Instructions----------------------------20~21
Electrical Instructions-------------------------------22~25
Display adjustment----------------------------------26~27
DDC DATA/Instructions-----------------------------28~36
ISP Instructions --------------------------------------37~38
Block Diagram---------------------------------------------39
Description
Page
Scaler Diagram--------------------------------------40~55
Scaler Board C.B.A---------------------------------56~57
Power Diagram/C.B.A -----------------------------58~60
IR&Control Diagram/C.B.A -----------------------61~62
DSUB Diagram/C.B.A------------------------------63~65
Tuner Diagram/C.B.A------------------------------66~68
Exploded View -------------------------------------------69
Recommended/Spare parts list -----------------70~75
Circuit description---------------------------------------76
Repair Tips-------------------------------------------77~78
General product specification------------------79~123
Different Parts List-------------------------------------124
Updated for 420WN6QS-----------------------125~126
Revision List--------------------------------------------127
REFER TO BACK COVER FOR IMPORTANT SAFETY GUIDELINES
CAUTION: USE A SEPARATE ISOLATION TRANSFORMER FOR THIS UNIT WHEN SERVICIN
G.
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.
SAFETY NOTICE
GB
3138 106 10490
BDL 42" LCD Monitor/TV
BDL4221V/00
BDL4221V/27
BDL4221VS/00
420WN6QS/93
420WN6QS/97
Summary of Contents for BDL4221V/00
Page 39: ...39 420WN6 LCD TV Go to cover page BLOCK DIAGRAM Main Board ...
Page 40: ...Go to cover page ...
Page 41: ...41 420WN6 LCD TV Go to cover page SCALER DIAGRAM ...
Page 42: ...Go to cover page ...
Page 43: ...43 420WN6 LCD TV Go to cover page SCALER DIAGRAM ...
Page 44: ...Go to cover page 420WN6 LCD TV 44 SCALER DIAGRAM ...
Page 45: ...45 420WN6 LCD TV Go to cover page SCALER DIAGRAM ...
Page 46: ...Go to cover page 420WN6 LCD TV 46 SCALER DIAGRAM ...
Page 47: ...47 420WN6 LCD TV Go to cover page SCALER DIAGRAM ...
Page 48: ...Go to cover page 420WN6 LCD TV 48 SCALER DIAGRAM ...
Page 49: ...49 420WN6 LCD TV Go to cover page SCALER DIAGRAM ...
Page 50: ...Go to cover page 420WN6 LCD TV 50 SCALER DIAGRAM ...
Page 51: ...51 420WN6 LCD TV Go to cover page SCALER DIAGRAM ...
Page 52: ...Go to cover page 420WN6 LCD TV 52 SCALER DIAGRAM ...
Page 53: ...53 420WN6 LCD TV Go to cover page SCALER DIAGRAM ...
Page 54: ...Go to cover page ...
Page 55: ...55 420WN6 LCD TV Go to cover page SCALER DIAGRAM ...
Page 56: ...Go to cover page 420WN6 LCD TV 56 SCALER BOARD C B A ...
Page 57: ...57 420WN6 LCD TV Go to cover page SCALER BOARD C B A ...
Page 58: ...Go to cover page ...
Page 59: ...59 420WN6 LCD TV Go to cover page POWER BOARD C B A ...
Page 60: ...Go to cover page ...
Page 61: ...61 420WN6 LCD TV Go to cover page IR CONTROL DIAGRAM ...
Page 62: ...Go to cover page 420WN6 LCD TV 62 IR CONTROL BOARD C B A ...
Page 63: ...63 420WN6 LCD TV DSUB DIAGRAM Go to cover page ...
Page 64: ...DSUB C B A 64 420WN6 LCD TV Go to cover page ...
Page 65: ...65 420WN6 LCD TV DSUB C B A Go to cover page ...
Page 66: ...TUNER DIAGRAM FOR 420WN6QS 93 AND 420WN6QS 97 66 420WN6 LCD TV Go to cover page ...
Page 67: ...67 420WN6 LCD TV Go to cover page TUNER C B A FOR 420WN6QS 93 AND 420WN6QS 97 ...
Page 68: ...TUNER C B A FOR 420WN6QS 93 AND 420WN6QS 97 68 420WN6 LCD TV Go to cover page ...