Dell 21N21E2 service manual Contents

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CONTENTS

SERVICING NOTICES ON CHECKING ......................................................................................................

HOW TO ORDER PARTS ...........................................................................................................................

IMPORTANT ................................................................................................................................................

CONTENTS .................................................................................................................................................

GENERAL SPECIFICATIONS ....................................................................................................................

DISASSEMBLY INSTRUCTIONS

1.REMOVAL OF ANODE CAP ..............................................................................................................

2.REMOVAL AND INSTALLATION OF FLAT PACKAGE IC ...............................................................

SERVICE MODE LIST .................................................................................................................................

CONFIRMATION OF HOURS USED ..........................................................................................................

WHEN REPLACING EEPROM( MEMORY) IC ...........................................................................................

ELECTRICAL ADJUSTMENTS ..................................................................................................................

BLOCK DIAGRAM ......................................................................................................................................

PRINTED CIRCUIT BOARDS

MAIN/CRT ...............................................................................................................................................

SCHEMATIC DIAGRAMS

MICON/TUNER .......................................................................................................................................

IF/CHROMA ............................................................................................................................................

21PIN/AV SW .........................................................................................................................................

SOUND AMP ..........................................................................................................................................

DEFLECTION/CRT .................................................................................................................................

POWER ..................................................................................................................................................

WAVEFORMS .............................................................................................................................................

MECHANICAL EXPLODED VIEW ..............................................................................................................

MECHANICAL REPLACEMENT PARTS LIST ..........................................................................................

ELECTRICAL REPLACEMENT PARTS LIST ............................................................................................

A1-1

A1-1

A1-1

A2-1

A3-1~A3-5

B1-1

B2-1, B2-2 C-1

C-1

C-1 D-1~D-5 E-1, E-2

F-1~F-4

G-1, G-2 G-3, G-4 G-5, G-6 G-7, G-8 G-9, G-10 G-11, G-12 H-1~ H-3 I-1

J1-1

J2-1~ J2-7

A2-1

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Contents Colourtelevision HOW to Order Parts Insulation Check ProcedureServicing Notices on Checking Contents System General SpecificationsA3-2 A3-3 A3-4 A3-5 Disassembly Instructions InstallationRemoval Removal and Installation of Flat Package IC B2-2 Service Mode List When Replacing Eeprom Memory ICConfirmation of Hours Used AGC Voltage Electrical AdjustmentsConstant Voltage VCO Coase L1, VCO Fine L1Vertical POSITION/VERTICAL Linearity White BalanceHorizontal Position Vertical SizeNO. Function Contrast CentDynamic Convergence Static Convergence Rough AdjustmentPurity Static ConvergenceMain PCB CRT PCBBlock Diagram Printed Circuit Boards MAIN/CRT Inserted Parts Bshort Printed Circuit Boards MAIN/CRT Chip Mounted PartsMszp SZPAB6 U8OSZP7 V7ED7YOB6D NXWSZP XC6C XC7COC8A XC6B SZPZO C OT7OT8 C4A OC9BTQM SZP E4B4CBD Q8COA8A YTQPA6B OA7CWaveforms 21PIN/AV SW Sound AMP CRT PCB Assy Mechanical Exploded ViewMechanical Replacement Parts List TSB P/N Resistors Electrical Replacement Parts ListJ2-2 CS0RF04L5Z CapacitorsJ2-4 Diodes Coils &TRANSFORMERS SwitchesICS TransistorsVariable Resistors Board AssembliesMiscellaneous
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