Sony KV-27S42 Section SET-UP Adjustments, Beam Landing, Adjustment Procedure, Purity Control

Page 15

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

SECTION 3

SET-UP ADJUSTMENTS

The following adjustments should be made when

Perform the adjustments in order as follows:

a complete realignment is required or when a new

1.

Beam Landing

picture tube is installed.

2.

Convergence

These adjustments should be performed with rated

3.

Focus

4.

Screen (G2)

power supply voltage unless otherwise noted.

5.

White Balance

Set the controls as follows unless otherwise noted.

Note: Test equipment required:

 

VIDEO MODE: STANDARD

• Color bar pattern generator

PICTURE control: ................ Normal

•

Degausser

BRIGHTNESS control ......... Normal

•

DC power supply

 

•

Digital multimeter

 

 

3-1. BEAM LANDING

5. Move the deflection yoke forward and adjust so that the

Before beginning adjustment procedure:

entire screen becomes green.

 

 

1. Degauss the entire screen.

 

 

2. Feed in the white pattern signal.

 

 

Adjustment Procedure

 

 

1. Input a raster signal with the pattern generator.

 

 

2. Loosen the deflection yoke mounting screw and set the

 

 

purity control to the center as shown below.

 

 

Purity Control

6. Switch over the raster signal to red and blue and confirm the condition.

7. When the position of the deflection yoke is determined, tighten it with the deflection yoke mounting screw.

8. If landing at the corner is not right, adjust by using the disk magnets.

3.Turn the raster signal of the pattern generator to green.

4.Move the deflection yoke backward and adjust the purity

control so that green is in the center and red and blue are

Purity control

 

at the sides evenly.

corrects this area

 

 

 

 

 

a

b

Disk magnets

 

 

 

or rotatable disk

 

c

d

magnets correct

 

these areas (a-d)

 

 

 

 

Deflection yoke positioning

 

Blue Red

corrects these areas

 

 

 

 

Green

 

 

a

 

 

 

 

 

 

c

 

b

 

 

 

d

 

 

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Contents BA-4DCHASSIS Trinitron Color TV Standby DimensionsW/H/D SpecificationsTable of Contents SAFETY-RELATED Component Warning SELF-DIAGNOSTIC Function101 STANDBY/TIMER LEDSelf-diagnostic Circuit Leakage Test Safety CHECK-OUTSection General Connecting Your TVKV-27S42/27S46/27S66/29AL42/29AL42C/29AL66 Troubleshooting Disassembly SectionRear Cover Removal Service Position Chassis Assembly RemovalAnode CAP Removal Picture Tube RemovalPurity Control Section SET-UP AdjustmentsAdjustment Procedure Beam LandingHorizontal Static Convergence Dynamic Convergence AdjustmentConvergence Vertical Static ConvergenceWhite Balance Adjustments Method of Setting the Service Adjustment ModePreparation Before Confirmation Section Safety Related AdjustmentsHold-down Readjustment B+ Voltage Confirmation and AdjustmentFBT ABL11 Adjust Buttons and Indicators Section Circuit AdjustmentsSetting the Service Adjustment Mode Service Adjustment Mode OnService Data Initial Value Average Data Name Range Adjustment ItemsBoard Adjustments Center Adjustment Hpos Sub Hue, Sub Color Adjustment SHUE, ScolSize Adjustment Vsiz Center Adjustment VposCircuit Board Location Section Diagrams Block DiagramPrinted Wiring Boards and Schematic Diagrams Part Replaced AdjustmentBoard * Mark Variant List Board IC Voltage List Board Schematic Diagram Board WaveformsComponent Side Board Waveforms Board Schematic Diagram Board * Mark Variant List Board ICBoardtransistor Board Schematic Diagram HT Board Schematic DiagramCV Board Transistor CV Board IC Voltage List CV Board WaveformsBoard Transistor Voltage List IC1403 HV Board Schematic Diagram Board IC Voltage ListSemiconductors Section Exploded ViewsGUIDE, LED Emblem NO.9, SonyBeznet Assy KV-29XL42M Multi ButtonPiece a 110, Conv Correct Beznet AssyDY Y29NXA-V CV Mounted PC BoardCORD, Power with Connector 25 A-1372-617-A HV VAR Mounted PC BoardCABLE, P-P Model Capacitor Common Parts Listing aCommon Parts Listing Diode ConnectorCoil Ferrite BeadJack Chip ConductorTransistor 2SA1091-O ResistorQ300 Transistor 2SD601A-QREF.NO. Part no Carbon MetalRES, Chip SwitchRelay TransformerThermistor TunerCrystal LINK, IC Board Variant Parts ListConnector Transformer Diode ThermistorDiode Transformer 560µF400V 680µF KV-27S46KV-29SL46 Connector SwitchIC STR-F6626 Board Variant List KV-27S66Board Variant List KV-29AL42/29AL42C Transformer Capacitor THP601 ! 1-803-540-11 ThermistorRES,CHIP R391 Board Variant List KV-29AL66/29AL66CJack Transformer Transistor ThermistorJ1751 ! 1-251-688-11 SOCKET, CRT KV-27S42/27S46/27S66 only J17010022µF 125VVaristor FuseHV K REF.NO. Part NO. Descriptionremark C3301 Remote Commander Accessories and Packing MaterialPage Page 965-857-01 Sony CorporationCORRECTION-1 CRT 29NX 733-873-05Incorrect CorrectDYY29VXA-V2 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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