Sony KV-27S42 service manual Picture Tube Removal, Anode CAP Removal

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KV-27S42/27S46/27S66/29AL42/29AL42C/29AL66/29AL66C/ 29SL42/29SL42C/29SL46/29XL42M

2-8. 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

Tension Spring

A board

E board

Degaussing Coil

DeflectionYoke

Two DGC holders (M)

C / CV

K board (KV-29AL66/29AL66C/

 

27S66/29AL42/

(KV-29AL66/29AL66C/

board

 

 

HV board

29AL42C)

29AL42/29AL42C)

 

 

(KV-29AL66/29AL66C/

 

 

Four Screws

 

29AL42/29AL42C)

(Tapping screw 7)

 

Picture tube

Anode Cap

Cushion

ANODE CAP REMOVAL

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

NOTE:

After removing the anode, short circuit the anode of the picture tube and the anode cap to either the metal chassis, CRT shield,

 

or carbon painted on the CRT.

REMOVAL PROCEDURES

b

a

1 Turn up one side of the rubber cap in

2 Use your thumb to pull the rubber

the direction indicated by arrow a .

cap firmly in the direction indicated

 

by arrow b .

HOW TO HANDLE AN ANODE CAP

1Do not use sharp objects which may cause damage to the surface of the anode cap.

2To avoid damaging the anode cap, do not squeeze the rubber covering too hard. A material fitting called a shatter-hook terminal is built into the rubber.

3Do not force turn the foot of the rubber cover. This may cause the shatter-hook terminal to protrude and damage the rubber.

c

Anode Button

3When one side of the rubber cap separates from the anode button, the anode cap can be removed by turning the rubber cap and pulling it in the direction of arrow c .

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Contents BA-4DCHASSIS Trinitron Color TV Specifications Standby DimensionsW/H/DTable of Contents SELF-DIAGNOSTIC Function SAFETY-RELATED Component WarningSTANDBY/TIMER LED 101Self-diagnostic Circuit Safety CHECK-OUT Leakage TestConnecting Your TV Section GeneralKV-27S42/27S46/27S66/29AL42/29AL42C/29AL66 Troubleshooting Rear Cover Removal DisassemblySection Chassis Assembly Removal Service PositionPicture Tube Removal Anode CAP RemovalBeam Landing Section SET-UP AdjustmentsAdjustment Procedure Purity ControlVertical Static Convergence Dynamic Convergence AdjustmentConvergence Horizontal Static ConvergenceMethod of Setting the Service Adjustment Mode White Balance AdjustmentsB+ Voltage Confirmation and Adjustment Section Safety Related AdjustmentsHold-down Readjustment Preparation Before ConfirmationFBT ABL11 Service Adjustment Mode On Section Circuit AdjustmentsSetting the Service Adjustment Mode Adjust Buttons and IndicatorsAdjustment Items Service Data Initial Value Average Data Name RangeBoard Adjustments Center Adjustment Vpos Sub Hue, Sub Color Adjustment SHUE, ScolSize Adjustment Vsiz Center Adjustment HposPart Replaced Adjustment Section Diagrams Block DiagramPrinted Wiring Boards and Schematic Diagrams Circuit Board LocationBoard * Mark Variant List Board Schematic Diagram Board Waveforms Board IC Voltage ListHT Board Schematic Diagram Board Schematic Diagram Board * Mark Variant List Board ICBoardtransistor Board Schematic Diagram Component Side Board WaveformsBoard Transistor Voltage List CV Board Transistor CV Board IC Voltage ListCV Board Waveforms Section Exploded Views HV Board Schematic Diagram Board IC Voltage ListSemiconductors IC1403Multi Button Emblem NO.9, SonyBeznet Assy KV-29XL42M GUIDE, LEDCV Mounted PC Board Beznet AssyDY Y29NXA-V Piece a 110, Conv CorrectCABLE, P-P CORD, Power with Connector25 A-1372-617-A HV VAR Mounted PC Board Model Common Parts Listing a CapacitorCommon Parts Listing Connector DiodeChip Conductor Ferrite BeadJack CoilTransistor 2SD601A-Q ResistorQ300 Transistor 2SA1091-OREF.NO. Part no Metal CarbonTransformer SwitchRelay RES, ChipCrystal ThermistorTuner Diode Thermistor Board Variant Parts ListConnector Transformer LINK, IC400V Diode Transformer560µF KV-27S46 680µFConnector Switch KV-29SL46Board Variant List KV-27S66 IC STR-F6626RES,CHIP Board Variant List KV-29AL42/29AL42C Transformer CapacitorTHP601 ! 1-803-540-11 Thermistor Transistor Thermistor Board Variant List KV-29AL66/29AL66CJack Transformer R391J1751 ! 1-251-688-11 SOCKET, CRT 125V J17010022µF KV-27S42/27S46/27S66 onlyFuse VaristorHV K REF.NO. Part NO. Descriptionremark C3301 Accessories and Packing Material Remote CommanderPage Page Sony Corporation 965-857-01CORRECTION-1 733-873-05 CRT 29NXDYY29VXA-V2 IncorrectCorrect SUPPLEMENT-1 Chassis KV-27S46/27S42/29SL42/29SL42C/29SL46/29XL42M/29SL43 SUPPLEMENT-2 Beznet Assy KV-29XL42M Correction
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KV-27S42 specifications

The Sony KV-27S42, KV-27S66, and KV-27S46 are notable models within Sony's acclaimed line of Trinitron televisions, which contributed significantly to the brand's reputation for delivering high-quality viewing experiences. These models are characterized by their sturdy construction, vibrant picture quality, and user-friendly features, which made them popular among consumers during their release.

The KV-27S42 model is equipped with Sony's advanced Trinitron technology, offering a flat CRT screen that minimizes glare and enhances color accuracy. With a 27-inch display size, the KV-27S42 is designed to provide an immersive viewing experience without occupying excessive space in the living room. This model also features a variety of input options including composite, S-video, and RF inputs, allowing users to connect multiple devices such as VCRs, DVD players, and gaming consoles effortlessly.

The KV-27S66 model builds upon the strengths of its predecessor with enhancements in audio and video technologies. It features a built-in 2-channel sound system that delivers clear and dynamic audio, complementing the stunning visuals produced by the Trinitron display. The KV-27S66 also includes a digital comb filter, which improves picture sharpness by separating the brightness and color signals, resulting in reduced artifacts and enhanced clarity.

Meanwhile, the KV-27S46 incorporates some of the latest technologies of its time, such as the use of Super Fine Pitch Trinitron technology. This innovation enhances the display's resolution, offering finer detail and more precise color reproduction. The KV-27S46 also supports multiple viewing formats, making it suitable for various video sources, including standard cable and DVDs.

Each of these models is designed with an intuitive on-screen menu that simplifies the navigation of settings, making it easy for users to adjust picture and sound settings to their preferences. Remote control functionality further enhances the user experience, allowing for effortless operation from a distance.

In summary, the Sony KV-27S42, KV-27S66, and KV-27S46 televisions stand out for their historical significance in delivering quality display and audio technologies. With various features that cater to home entertainment needs, these televisions remain a testament to Sony's lasting legacy in the consumer electronics market. While these models may not compete with today's flat-screen technology, they were pioneering products that set the stage for future innovations in television design and performance.
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