Toshiba 14N21NS service manual Disassembly Instructions, Removal of Anode CAP, Installation

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DISASSEMBLY INSTRUCTIONS

1. REMOVAL OF ANODE CAP

Read the following NOTED items before starting work.

*After turning the power off there might still be a potential voltage that is very dangerous. When removing the Anode Cap, make sure to discharge the Anode Cap's potential voltage.

*Do not use pliers to loosen or tighten the Anode Cap terminal, this may cause the spring to be damaged.

REMOVAL

1.Follow the steps as follows to discharge the Anode Cap.

(Refer to Fig. 1-1.)

Connect one end of an Alligator Clip to the metal part of a flat-blade screwdriver and the other end to ground.

While holding the plastic part of the insulated Screwdriver, touch the support of the Anode with the tip of the Screwdriver.

A cracking noise will be heard as the voltage is discharged.

GND on the CRT

ScrewdriverCRT

Support

Alligator Clip

GND on the CRT

Fig. 1-1

2.Flip up the sides of the Rubber Cap in the direction of the arrow and remove one side of the support.

(Refer to Fig. 1-2.)

Rubber Cap

3.After one side is removed, pull in the opposite direction to remove the other.

NOTE

Take care not to damage the Rubber Cap.

INSTALLATION

1.Clean the spot where the cap was located with a small amount of alcohol. (Refer to Fig. 1-3.)

Location of Anode Cap

Fig. 1-3

NOTE

Confirm that there is no dirt, dust, etc. at the spot where the cap was located.

2.Arrange the wire of the Anode Cap and make sure the wire is not twisted.

3.Turn over the Rubber Cap. (Refer to Fig. 1-4.)

Fig. 1-4

4.Insert one end of the Anode Support into the anode button, then the other as shown in Fig. 1-5.

CRT

Support

Fig. 1-2

Support

CRT

Fig. 1-5

5.Confirm that the Support is securely connected.

6.Put on the Rubber Cap without moving any parts.

B1-1

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Contents Colourtelevision Insulation Check Procedure HOW to Order PartsServicing Notices on Checking A1-1Contents General Specifications On Screen TimerDisplay OSD LanguageFeatures RemoteControl Weight AccessoriesInterface Set SizeCarton Installation Disassembly InstructionsRemoval of Anode CAP RemovalB2-1 Removal and Installation of Flat Package ICB2-2 Service Mode List Confirmation of Hours UsedSet Key Remocon Key Operations INI When Replacing Eeprom Memory ICElectrical Adjustments Adjustment ProcedureBasic Adjustments Vertical POSITION, Vertical Linearity Horizontal PositionVertical Size Bright CentTint Confirmation of Fixed Value Step NoNO. Function Static Convergence Rough Adjustment Purity and Convergence AdjustmentsPurity Static ConvergenceMain PCB CRT PCBBlock Diagram Solder Side Printed Circuit Boards MAIN/CRT Inserted PartsCUT Printed Circuit Boards MAIN/CRT Chip Mounted PartsReset AccessoryAV1 Power R03AB2PXGPIG Outout FROM/TO Power CON+8V GNDChroma IC201 STV2246C FM CAP Audio OUT GND D SDA SCL Slpf LBF/SSC OUT Vert BCL/SAFFROM/TO Sound AMP Critical for SAFETY,USE OnesSOUND+B SoundgndRamp Generator FROM/TO CHROMA/SIF/VIF/21PIN OUT Vout Vamp Abcl Hout AFCHeight ADJ MHESW1 FROM/TO PowerCHROMA/SIF/VIF/21PIN Swaudioin Frontvideoin AudiooutWaveforms MICON/TUNERCHROMA/SIF/VIF/21PIN Sound AMP DEFLECTION/CRTMechanical Exploded View REF. NO. Part no Description J1-1REF. no Description Resistors Electrical Replacement Parts ListREF. no Description Resistors Capacitors J2-2J2-3 REF. no Description Miscellaneous J2-4