Sony KV-27S42 service manual Table of Contents

Page 4

 

 

KV-27S42/27S46/27S66/29AL42/29AL42C/29AL66/

 

 

29AL66C/29SL42/29SL42C/29SL46/29XL42M

 

 

TABLE OF CONTENTS

Section

Title

Page

 

Warnings and Cautions

4

 

Self-Diagnostic Function

4

 

Safety Check-Out Instructions

7

1.

GENERAL

8

2.DISASSEMBLY

2-1. Rear Cover Removal (KV-27S46/27S66)

11

2-2. Rear Cover Removal (KV-29SL42/29C/29SL46/29XL42M)

11

2-3.

Rear Cover Removal (KV-29AL42/42C/29AL66/66C)

11

2-4.

Control Switch Removal (KV-29AL42/42C/29AL66/66C)

11

2-5.

Chassis Assembly Removal (KV-27S46/27S66/29SL42/29C/29SL46/29XL42M)

12

2-6.

Chassis Assembly Removal (KV-29AL42/42C/29Al66/66C)

12

2-7.

Service Position

12

2-8.

Picture Tube Removal

13

3.SET-UP ADJUSTMENTS

3-1.

Beam Landing

14

3-2.

Convergence

15

3-3.

Focus

16

3-4.

Screen (G2)

16

3-5. Method of Setting the Service Adjustment Mode

16

3-6.

White Balance Adjustments

16

4.SAFETY RELATED ADJUSTMENTS

4-1.

R582 and R584 Confirmation Method (HV Hold-Down Confirmation and Readjustments)

17

4-2.

B+ Voltage Confirmation and Adjustment

17

5.CIRCUIT ADJUSTMENTS

5-1.

Setting the Service Adjustment Mode

19

5-2.

Memory Write Confirmation Method

19

5-3.

Adjust Buttons and Indicators

19

5-4.

A Board Adjustments

21

6.DIAGRAMS

6-1.

Block Diagram

23

6-2.

Circuit Board Location

26

6-3.

Printed Wiring Boards and Schematic Diagrams

26

 

A Board

27

 

P Board

35

 

K Board

37

 

HT Board

37

 

C Board

39

 

CV Board

40

 

E Board

42

 

HV Board

43

6-4.

Semiconductors

45

7.EXPLODED VIEW

7-1.

Chassis (KV-27S66)

46

7-2.

Chassis (KV-27S42/27S46/27SL42/42C/29SL46/29XL42M)

47

7-3.

Chassis (KV-29AL42/29AL42C)

48

7-4.

Chassis (KV-29AL66/66C)

49

8. ELECTRICAL PARTS LIST

50

— 3 —

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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 Section DisassemblyRear Cover Removal Chassis Assembly Removal Service PositionPicture Tube Removal Anode CAP RemovalSection SET-UP Adjustments Adjustment ProcedureBeam Landing Purity ControlDynamic Convergence Adjustment ConvergenceVertical Static Convergence Horizontal Static ConvergenceMethod of Setting the Service Adjustment Mode White Balance AdjustmentsSection Safety Related Adjustments Hold-down ReadjustmentB+ Voltage Confirmation and Adjustment Preparation Before ConfirmationFBT ABL11 Section Circuit Adjustments Setting the Service Adjustment ModeService Adjustment Mode On Adjust Buttons and IndicatorsAdjustment Items Service Data Initial Value Average Data Name RangeBoard Adjustments Sub Hue, Sub Color Adjustment SHUE, Scol Size Adjustment VsizCenter Adjustment Vpos Center Adjustment HposSection Diagrams Block Diagram Printed Wiring Boards and Schematic DiagramsPart Replaced Adjustment Circuit Board LocationBoard * Mark Variant List Board Schematic Diagram Board Waveforms Board IC Voltage ListBoard Schematic Diagram Board * Mark Variant List Board IC Boardtransistor Board Schematic DiagramHT Board Schematic Diagram Component Side Board WaveformsCV Board Waveforms CV Board Transistor CV Board IC Voltage ListBoard Transistor Voltage List HV Board Schematic Diagram Board IC Voltage List SemiconductorsSection Exploded Views IC1403Emblem NO.9, Sony Beznet Assy KV-29XL42MMulti Button GUIDE, LEDBeznet Assy DY Y29NXA-VCV Mounted PC Board Piece a 110, Conv Correct25 A-1372-617-A HV VAR Mounted PC Board CORD, Power with ConnectorCABLE, P-P Model Common Parts Listing a CapacitorCommon Parts Listing Connector DiodeFerrite Bead JackChip Conductor CoilResistor Q300Transistor 2SD601A-Q Transistor 2SA1091-OREF.NO. Part no Metal CarbonSwitch RelayTransformer RES, ChipTuner ThermistorCrystal Board Variant Parts List Connector TransformerDiode Thermistor LINK, IC560µF Diode Transformer400V KV-27S46 680µFConnector Switch KV-29SL46Board Variant List KV-27S66 IC STR-F6626THP601 ! 1-803-540-11 Thermistor Board Variant List KV-29AL42/29AL42C Transformer CapacitorRES,CHIP Board Variant List KV-29AL66/29AL66C Jack TransformerTransistor Thermistor R391J1751 ! 1-251-688-11 SOCKET, CRT J1701 0022µF125V 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 29NXCorrect IncorrectDYY29VXA-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.