Emerson Detailed Block Diagram of CRT with Focus on Control Functions
Page 25

VIDEO SIGNAL

IC551 (V-DEFLECTION CONTROL)

MAIN CBA

CRT/H.V

 

 

 

WF11

THERMAL

WF12

 

 

 

PROTECTION

5

RAMP-OUT

 

 

7

 

 

 

 

 

 

 

 

AMP

5

4

 

 

 

1

PULSE

3

V-RAMP-F/B

 

 

 

 

 

 

UP

WF9

TO

 

 

 

 

 

 

 

1

IF/VIDEO BLOCK

 

 

6

3

 

 

 

 

CN571

 

WF7

WF8

 

 

 

 

 

 

 

Q572

T572

Q571

 

 

H-DRIVE

H.DRIVE

 

 

 

 

H.OUTPUT

 

 

TO POWER

PROTECT-4

 

 

 

 

 

 

 

DEF+B

 

 

 

 

 

 

 

SUPPLY BLOCK

 

 

 

 

 

 

 

+B

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TO

PROTECT-1

 

 

T571 F.B.T.

FOCUS VR

 

 

 

PROTECT-2

 

 

 

 

 

 

 

SYSTEM CONTROL

 

 

 

HV

 

ANODE

 

BLOCK

PROTECT-3

 

 

 

 

 

 

 

 

F

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

X-RAY

 

 

S

 

FOCUS

 

 

 

 

 

 

 

6-4

TP591

TP592

1

 

11

 

SCREEN

 

 

 

3

 

8

 

 

 

 

 

 

5

 

10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7

 

 

 

 

 

 

 

 

SCREEN VR

 

 

 

 

 

 

4

 

9

 

 

 

 

 

 

 

 

6

 

 

 

 

 

 

 

 

WF10

WH501A

 

WH501B

 

 

 

 

 

 

3

HEATER

3

 

 

 

 

 

 

1

+200V

1

TO

FBP-IN

 

 

 

 

 

 

 

IF/VIDEO BLOCK

ACL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

JK1501

 

 

 

WF3

WF15

WF4

WF14

 

 

 

WH301B

 

Q1511

 

 

 

 

 

 

Q1521

 

TO

RED

3

 

RED AMP

 

 

 

 

 

 

GREEN

4

 

 

 

 

 

IF/VIDEO BLOCK

 

 

 

GREEN AMP

 

WH301A

BLUE

5

 

 

 

 

BLUE AMP

 

 

 

 

 

 

 

 

 

 

 

WF5

Q1531

 

 

 

 

 

 

WF13

DY551 D.Y.

V-

DRIVE

H-

DRIVE

ANODE

FOCUS

SCREEN

GND

R V501

GCRT

B

HEATER

. Block Diagram

L2401BLCRT

CRT CBA

CN1501

GND

Page 24 Page 26
Image 25
Page 24 Page 26
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 Clearance Distance Safety Check after ServicingLeakage Current Test 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 IronPin 1 of the Flat Pack-IC Is indicated by a mark InstallationPresolder Ground for Human Body Instructions for Handling SemiconductorsGround for Workbench IncorrectDisassembly Flowchart Cabinet Disassembly InstructionsDisassembly Method Reference Notes in the TableRear Cabinet Main CBA Rear CabinetCRT 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 SpecFocus Adjustment Sub-Brightness AdjustmentPurity Adjustment Figures Convergence AdjustmentSystem BlockL2401BLIF IF/Video Block DiagramL2401BLA AudioCRT/H.V Block DiagramL2401BLP DiagramStandard Notes Schematic Diagrams / Cbas and Test PointsTolerance of Capacitors are noted with the following 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 DiagramIC PIN Functions Pin Signal Name FunctionIC111 TV Micro Controller Judgement White Balance AdjustmentAFT Voltage Input Degaussing Coil ControlCabinet Exploded Views11-1 11-2 L2401CEX X-2 X-3 Tape Packing Tape 11-3 L2401PEX PackingComparison Chart of Models and Marks Mechanical Parts List20040405 12-1 L2401CA 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

6420FE specifications

The Emerson 6420FE is a robust and versatile platform designed for a variety of industrial applications, particularly in process automation, manufacturing, and control systems. This model represents Emerson’s commitment to innovation and performance, catering to the evolving needs of industries that require reliable and accurate control solutions.

One of the main features of the Emerson 6420FE is its advanced processing capability. Equipped with a high-performance processor, the device ensures fast data processing and response times, which are critical in real-time control environments. This allows organizations to optimize their processes, enhance productivity, and improve operational efficiency.

Connectivity is another standout characteristic of the Emerson 6420FE. It supports a range of communication protocols, including Ethernet/IP, Modbus, and others, enabling seamless integration with various devices and systems. This flexibility ensures that the 6420FE can be easily incorporated into existing networks, facilitating smooth data exchange and interoperability among different automation components.

In terms of safety, the Emerson 6420FE is designed with features that ensure compliance with industry standards. It includes built-in redundancy options that enhance operational reliability and minimize downtime. Moreover, the device undergoes rigorous testing to meet safety certifications, providing peace of mind to operators and stakeholders.

The user interface of the Emerson 6420FE is intuitive and user-friendly, featuring an easy-to-navigate design that simplifies configuration and operation. This is paired with advanced diagnostic capabilities, allowing operators to troubleshoot issues effectively and maintain optimal system performance without significant downtime.

Another notable aspect of the Emerson 6420FE is its scalability. Whether in a small application or a large-scale industrial environment, the device can be easily scaled to meet varying demands. This adaptability makes it an ideal solution for companies looking to future-proof their automation systems.

In conclusion, the Emerson 6420FE is a powerful and reliable device that embodies Emerson’s commitment to innovation in process control and automation. With its advanced processing power, versatile connectivity options, robust safety features, user-friendly interface, and scalability, it stands out as an excellent choice for industries looking to enhance their operational efficiencies and ensure streamlined processes. As technology continues to evolve, the Emerson 6420FE remains a cornerstone in automation solutions, driving productivity and reliability in various industrial applications.
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