Emerson 6420FE service manual Main 4/4 & CRT Schematic Diagram, Main 4/4 Ref No Position

Page 32

Main 4/4 & CRT Schematic Diagram

MAIN 4/4

Ref No.

 

Position

Ref No.

Position

 

IC

CONNECTORS

IC551

 

S-3

WH501A

V-3

TRANSISTORS

WH301A

V-2

Q571

 

U-2

TEST POINTS

Q572

 

T-2

TP591

U-2

CONNECTORS

TP592

U-2

CN571

 

T-3

TP601

U-3

CRT

Ref No.

Position

TRANSISTORS

Q1511

W-1

Q1521

W-1

Q1531

X-1

CONNECTORS

CN1501

X-2

WH301B

V-2

WH501B

V-3

 

 

 

VIDEO SIGNAL

 

 

S3

T3

U3

V3

W3

X3

S2

 

U2

V2

 

X2

S1

 

 

V1

W1

X1

 

7-9

 

 

7-10

L2401SCM4

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Contents
6420FE EWF2004 Important Safety Notice Table of ContentsSpecifications Description Condition Unit Nominal LimitDBµv DBµv AFT Pull In Range 10mV input MHz ±2.0 ±0.7Important Safety Precautions Safety Precautions for TV CircuitNot be Above 0.5 mA L6115IMPL6115IMP Precautions during Servicing Leakage Current Test Safety Check after ServicingClearance Distance How to Remove / Install Flat Pack-IC Standard Notes for ServicingCircuit Board Indications Pb Lead Free SolderWith Iron Wire MachineMasking Flat Pack-IC Tape Tweezers With Soldering IronPresolder InstallationPin 1 of the Flat Pack-IC Is indicated by a mark Instructions for Handling Semiconductors Ground for Human BodyGround for Workbench IncorrectCabinet Disassembly Instructions Disassembly FlowchartDisassembly Method Reference Notes in the TableCRT Rear CabinetRear Cabinet Main CBA TV Cable Wiring Diagram Electrical Adjustment Instructions How to set up the service mode+B Adjustment Service modeInitial Setting GeneralF0 Adjustment Black Stretch Control AdjustmentSD Check Mode Purity CheckPosition Adjustment Size Adjustment10. V. Position Adjustment Software ResetCut-off Adjustment White Balance AdjustmentMode Input Tape SpecPurity Adjustment Sub-Brightness AdjustmentFocus Adjustment Convergence Adjustment FiguresBlock SystemIF/Video Block Diagram L2401BLIFAudio L2401BLABlock Diagram CRT/H.VDiagram L2401BLPTolerance of Capacitors are noted with the following Schematic Diagrams / Cbas and Test PointsStandard Notes Wire Connectors How to read converged lines Is not consistent here Test Point InformationMain 1/4 Schematic Diagram L2401SCM1Main 2/4 Schematic Diagram L2401SCM2Main 3/4 Schematic Diagram L2401SCM3Main 4/4 & CRT Schematic Diagram Main 4/4 Ref No PositionMain CBA Top View BL2700F01012-1Main CBA Bottom View CRT CBA Top View Q1521 Q1521 Collector BaseQ1511 Q1511 Collector Base Q1531 BaseWaveforms WF4WF9 CollectorWiring Diagram L2401WIIC111 TV Micro Controller Pin Signal Name FunctionIC PIN Functions White Balance Adjustment JudgementAFT Voltage Input Degaussing Coil Control11-1 11-2 L2401CEX Exploded ViewsCabinet Packing X-2 X-3 Tape Packing Tape 11-3 L2401PEX20040405 12-1 L2401CA Mechanical Parts ListComparison Chart of Models and Marks Electrical Parts List 20040405 13-1 L2401EL20040405 13-2 L2401EL Electrolytic CAP .33∝F/50V M CE1JMASDLR33Connectors 20040405 13-3 L2401EL20040405 13-4 L2401EL ICS20040405 13-5 L2401EL Transistor 2SC2120-YTPE220040405 13-6 L2401EL Switches 20040405 13-7 L2401EL20040405 13-8 L2401EL RCA Jack 1P AV-8.4-9W6420FE/EWF2004 L2401UB/L2404UE
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