Emerson 6420FE service manual Main 1/4 Schematic Diagram, L2401SCM1

Page 29

Main 1/4 Schematic Diagram

VIDEO SIGNAL

A4

 

C4

 

E4

F4

A3

B3

C3

D3

E3

F3

A2

B2

C2

D2

E2

F2

A1

B1

C1

D1

E1

F1

 

7-3

 

 

 

7-4

MAIN 1/4

Ref No. Position

 

ICS

IC111

C-2

IC151 A-3

TRANSISTORS

Q111 D-1

Q131 A-3

Q161 A-4

Q321 E-1

Q361 B-4

L2401SCM1

Image 29 Contents
6420FE EWF2004 Table of Contents Important Safety NoticeDescription Condition Unit Nominal Limit SpecificationsDBµv DBµv AFT Pull In Range 10mV input MHz ±2.0 ±0.7Safety Precautions for TV Circuit Important Safety PrecautionsNot be Above 0.5 mA L6115IMPL6115IMP Precautions during Servicing Leakage Current Test Safety Check after ServicingClearance Distance Standard Notes for Servicing How to Remove / Install Flat Pack-ICCircuit Board Indications Pb Lead Free SolderMachine With Iron WireMasking Flat Pack-IC Tape Tweezers With Soldering IronPresolder InstallationPin 1 of the Flat Pack-IC Is indicated by a mark Ground for Human Body Instructions for Handling SemiconductorsGround for Workbench IncorrectDisassembly Flowchart Cabinet Disassembly InstructionsDisassembly Method Reference Notes in the TableCRT Rear CabinetRear Cabinet Main CBA TV Cable Wiring Diagram How to set up the service mode Electrical Adjustment Instructions+B Adjustment Service modeGeneral Initial SettingBlack Stretch Control Adjustment F0 AdjustmentSD Check Mode Purity CheckSize Adjustment Position Adjustment10. V. Position Adjustment Software ResetWhite Balance Adjustment Cut-off AdjustmentMode Input Tape SpecPurity Adjustment Sub-Brightness AdjustmentFocus Adjustment Figures Convergence AdjustmentSystem BlockL2401BLIF IF/Video Block DiagramL2401BLA Audio CRT/H.V Block DiagramL2401BLP DiagramTolerance of Capacitors are noted with the following Schematic Diagrams / Cbas and Test PointsStandard Notes How to read converged lines Wire ConnectorsIs not consistent here Test Point InformationL2401SCM1 Main 1/4 Schematic DiagramL2401SCM2 Main 2/4 Schematic DiagramL2401SCM3 Main 3/4 Schematic DiagramMain 4/4 Ref No Position Main 4/4 & CRT Schematic DiagramBL2700F01012-1 Main CBA Top ViewMain CBA Bottom View Q1521 Q1521 Collector Base CRT CBA Top ViewQ1511 Q1511 Collector Base Q1531 BaseWF4 WaveformsCollector WF9L2401WI Wiring DiagramIC111 TV Micro Controller Pin Signal Name FunctionIC PIN Functions Judgement White Balance AdjustmentAFT Voltage Input Degaussing Coil Control11-1 11-2 L2401CEX Exploded ViewsCabinet X-2 X-3 Tape Packing Tape 11-3 L2401PEX Packing20040405 12-1 L2401CA Mechanical Parts ListComparison Chart of Models and Marks 20040405 13-1 L2401EL Electrical Parts ListElectrolytic CAP .33∝F/50V M CE1JMASDLR33 20040405 13-2 L2401EL20040405 13-3 L2401EL ConnectorsICS 20040405 13-4 L2401ELTransistor 2SC2120-YTPE2 20040405 13-5 L2401EL20040405 13-6 L2401EL 20040405 13-7 L2401EL SwitchesRCA Jack 1P AV-8.4-9W 20040405 13-8 L2401EL6420FE/EWF2004 L2401UB/L2404UE