Emerson 6420FE F0 Adjustment, Black Stretch Control Adjustment, Purity Check, SD Check Mode

Page 17

4. H f0 Adjustment

Purpose: To get correct horizontal frequency.

Use service remote control unit.

1.Press "2" button on the service remote control unit. and select H-ADJ mode. (By pressing "2" button the display will change from TV AGC to H-ADJ.)

2.Press "CH o/p" button on the service remote con- trol unit so that display will change "0" ~ "7". At this moment, Choose "4".

3.Turn the power off and on again. (Main Power but- ton on the TV unit.)

5. Black Stretch Control Adjustment

Purpose: To show the fine black color.

Symptom of Misadjustment: Black color will not appear correctly.

Note: Use service remote control unit.

1.Enter the Service mode. (See page 5-1)

2.Press "6" button on the service remote control unit. "B-S" is indicated.

3.Press "CH o / p" buttons on the service remote con- trol unit so that display will change "OFF," "0," and "1." Then choose "B-S OFF."

4.Press "6" button on the service remote control unit. "B-S2" is indicated.

5.Press "CH o / p" buttons on the service remote control unit so that display will change "0" and "1." Then choose "B-S2 0."

6.Turn the power off and on again, using the main power button on the TV unit.

6. Purity Check

1.Enter the Service mode. (See page 5-1)

2.Press "7" button on the remote control unit. Each time pressing 7" button on the remote control unit, display changes Red mode, Green mode, Blue mode, and White mode cyclically.

3.Select White mode.

4.Turn the power off and on again. (Main power but- ton on the TV unit.)

7. SD Check Mode

1.Enter the Service mode. (See page 5-1)

2.Press "1" button on the remote control unit. The unit enter the SD-Check mode.

3.The unit starts selecting the added channel from first channel according to the memorized CH ADD/ DELL data and CATV/TV data in RAM.

SD Check mode (Factory mode)

Press "1" buton.

7

Please wait

 

 

OSD color:

 

 

 

 

Magenta

There is no SD after

 

 

 

 

 

 

 

 

selecting channel.

 

13

 

 

 

 

 

 

 

 

Please wait

 

 

There are SD

 

OSD color:

 

 

 

 

 

in all channel.

 

Magenta

 

 

 

26

 

30

 

 

OK

NG

 

 

OSD color:

OSD color:

 

 

Magenta

Magenta

When SD-Check starting, there is no ADD channel.

ADD nothing

OSD color:

Magenta

5-3

L2401EA

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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 AudioCRT/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

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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