Sony KV-21FX30B Picture Tube Removal, Removal of the Anode-Cap, How to handle the Anode-Cap

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2-9. Picture Tube Removal

WARNING:

BEFORE REMOVING

THE ANODE CAP

High voltage remains in the CRT even after the power is disconnected. To avoid electric shock, discharge CRT before attempting to remove the anode cap. Short between anode and CRT coated earth ground strap.

Coated Earth

Ground Strap

Removal of the Anode-Cap

* REMOVING PROCEDURES.

a

1Turn up one side of the rubber cap in the direction indicated by the arrow a

How to handle the Anode-Cap

9

1

2

64

8

10

7

3

5

1.Discharge the anode of the CRT and remove the anode cap.

2.Release the EHT lead from its CRT support bracket.

3.Unplug all interconnecting leads from the Deflection yoke, degaussing coils and CRT grounding strap.

4.Remove the C Board from the CRT.

5.Remove the chassis assembly.

6.Loosen the Deflection yoke fixing screw and remove.

7.Remove the Degaussing Coil holders.

8.Place the set with the CRT face down on a cushion.

9.Unscrew the four CRT fixing screws [ located on each CRT corner ] and remove the CRT.

10.Remove the Degaussing Coils.

Remove the CRT grounding strap and spring tentioners. [Take care not to handle the CRT by the neck.]

c

b

b

 

Anode button

2 Using a thumb pull up the rubber cap

3 When one side of the rubber cap is

firmly in the direction indicated by the

separated from the anode button, the

arrow b

anode-cap can be removed by turning

 

up the rubber cap and pulling it up in

 

the direction of the arrow c

1 . To prevent damaging the surface of the anode-cap do not use sharp materials.

2 . Do not apply too great a pressure on the rubber, as this may cause damage to the anode connector.

3 . A metal fitting called a shatter hook terminal is fitted inside the rubber cap.

4 . Do not turn the rubber foot over excessively, this may cause damage if the shatter hook sticks out.

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Contents FE-2CHASSIS Table of Contents Item Model Pin connector Rear Connection Panel Front Connection PanelFlash Timing Example e.g. error number How to enter into TableGeneral Introducing and Using the Menu System Sleep Timer Level Level 3 / Function Teletext Specifications Troubleshooting Rear Cover Removal Speaker Connector DisconnectionSpeaker Box Disassembly Speaker Box RemovalBoard PWB Removal Step Service PositionWire Dressing Removal of the Anode-Cap How to handle the Anode-CapPicture Tube Removal SET-UP Adjustments Operation of the BMC Hexapole magnet PreparationHorizontal and Vertical Static Convergence YCH Adjustment Geometry Adjustment PreparationHtil Adjustment TLV AdjustmentLayout of each control G2 adjustmentWhite balance adjustment for TV mode Focus ScreenSub Contrast Adjustment How to enter into the Service ModeSub Brightness Adjustment Deflection System Adjustment Sub Colour AdjustmentTuner AGC Adjustment Print side of a boardTest Mode Memo Block Diagrams Circuit Board Location Reference InformationBoard Waveforms Semiconductor Voltage TableSemiconductor Location Table Power SUPPLY, DEFLECTION, Audio Amplifier Page 1/2 KV-21FX30Power SUPPLY, DEFLECTION, Audio Amplifier Page 2/2 Board WaveformsSemiconductors DAN202K IC Block Diagrams Board IC1201 TDA7497PART.NO Description Cord PowerDescription Remark BRACKET, MainSPRING, Tension CLIP, Lead WireBeznet Assy CATCHER, PushSection Electrical Parts List Capacitor PART.NOElect FilmMylar Ceramic2KV ShortDiode DAN202K ConnectorPART.NO Description Remark Diode MM3Z6V8T1Jack Diode D2SB60A-F04Diode D4SBL20UF1 Diode P6KE200ASYJR7 ResistorJR4 JR9Carbon Metal FusibleSolid Varistor SWITCH, TactilThermistor Socket TAB ContactDiode Individual Carton REF.NO PART.NO Description Remark£ 1-453-314-31 Transformer ASSY, Flyback Service Promotions Dept