Sony KV-21SE43C, KV-20S90 service manual Table of Contents

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KV-20S90 / 21SE43C

TABLE OF CONTENTS
SECTION TITLE	PAGE
Speciﬁ cations	3
Warnings and Cautions	4
Safety Check-out	5
Self-Diagnostic Function	6
1. Disassembly
1-1. Rear Cover Removal	8
1-2. Chassis Assembly Removal	8
1-3. Service Position	8
1-4. Picture Tube Removal	9
Anode Cap Removal Procedure	9
2. Set-up Adjustments
2-1. Beam Landing	10
2-2. Convergence	11
2-3. Focus	12
2-4. Screen (G2)	12
2-5. Method of Setting the Service Adjustment Mode	13
2-6. White Balance Adjustments	13
3. Safety Related Adjustments
3-1.X R582 Conﬁ rmation Method (Hold Down Conﬁ rmation) and Readjustments	14
3-2. B+ Voltage Conﬁ rmation and Adjustment	14
4. Circuit Adjustments
4-1. Setting the Service Adjustment Mode	16
4-2. Memory Write Conﬁrmation Method	16
4-3. Remote Adjustment Buttons and Indicators	16
Adjustment Items	17
4-4. A Board Adjustments	18
5. Diagrams
5-1. Circuit Boards Location	21
5-2. Printed Wiring Board and Schematic Diagram Information	21
5-3. Block Diagram and Schematics	22
Block Diagram	22
A Board Schematic Diagram	23
C Board Schematic Diagram	28
5-4. Semiconductors	30
6. Exploded Views
6-1. Chassis	31
7. Electrical Parts List	32

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Contents Trinitron Color Television Table of Contents Specifications LbsSAFETY-RELATED Component Warning Safety CHECK-OUT Leakage TestSELF-DIAGNOSTIC Function Self DiagnosisSelf-Diagnostic Screen Display Self DiagnosticRear Cover Removal DisassemblyChassis Assembly Removal Service Position Picture Tube Removal Anode CAP Removal ProcedureHOW to Handle AN Anode CAP Beam Landing SET-UP AdjustmentsAdjustment Procedure Convergenge Vertical Static ConvergenceFocus Dynamic Convergence AdjustmentSCREEN-CORNER Convergence Screen G2White Balance Adjustments Service Adjustment ModeService Adjustment Mode Memory B+ Voltage Confirmation and Adjustment Safety Related AdjustmentsHOLD-DOWN Readjustment Preparation Before ConfirmationDigital Power Multimeter Supply DigitalCircuit Adjustments Function Range Data Video Adjustment Items 1Data Initial Average ID MAP Adjustment Items 2Board Adjustments Frequency Adjustment SUB Bright Adjustment Sbrt SUB Contrast Adjustment RdrvDisplay Position Adjustment Disp SUB HUE, SUB Color Adjustment SHUE, ScolCenter Adjustment Hpos Size Adjustment VsizCenter Adjustment Vpos Linearity VLIN, V. CorrectionCircuit Boards Location DiagramsPrinted Wiring Board and Schematic Diagram Information Reference InformationBlock Diagram and Schematics DY AssyBoard Schematic Diagram INTBoard Variant Model List REF. no LocationIC521 NJM4558M-TE2 Board IC Block DiagramsBoard IC Voltage List PIN VoltIC301 CXA2133BS Cvco DemodTransistor Board Locator ListDiode CrystalsKG KB G2 CRT RGB DRIVE, CRT Drive Semiconductors Exploded Views Chassis KV-20S90/21SE43CElectrical Parts List REF. noCeramic Connector FuseCoil JackChip Conductor Photo CouplerMetal Chip Metal Tuner SwitchRelay VaristorAccessories and Packaging Remote Commander2LA TX 1C 3LA TX NIL BA ADS LCS IRD CCV +EVIRD Trinitron Color TV Page Safety Precautions Notification For the set with a polarized AC power cord plug Important SafeguardsPower Sources Grounding or PolarizationObject and Liquid Entry CleaningOverloading AttachmentsVentilation AccessoriesPower-Cord Protection Lightning Outdoor Antenna GroundingAntenna Grounding According to the NEC Safety Check Damage Requiring ServiceReplacement Parts ServicingPage Contents Page Trinitron Color TV Features IntroductionBatteries for the Remote Control About this ManualBasic Connections TV with indoor or outdoor antenna, or Catv cableRear of TV Connecting Additional EquipmentTV and VCR TV and Cable Box Cable Box Rear of TVTV, VCR, and Cable box VCRConnecting a Camcorder Connecting HeadphonesPage Using the Remote Control and Basic Functions Button DescriptionIf you lost your remote control, see Setting Up the TV Automatically To perform Auto Setup againQuick Start to the Menus MenuPress f to Press F to Using the Video menuTo access a menu Using the Audio menu KV-20S90 onlyUsing the Timer menu ON/OFF Timer Scheduled viewingUsing the SET UP menu Favorite Channel Quick access to favorite channelsChannel SET UP menu CableOverview of the Ratings Using Parental ControlContents Defined as AgeNC-17 Rating Defined asPG-13 18+ C8+14+ RatingInitial access into Parental Control Activating Parental LockRating TV will allow a maximum rating Setting the RatingUsing the Custom menu Resetting your password Information for ParentsPage Troubleshooting Lost password Remote controlTo be cleaned Cable stations don’t seem to workSpecifications For all models except as notedPage Index TV Rating A. Ratings 20 Unrated Page Page Page Page Page Page To Print Full Size Schematic Diagrams NON-SCHEMATIC PagesSchematic Diagrams To Print Tiled Version of SchematicsON-SCREEN Search Option Original Manual Issue Date 4/2001