Sony TVP-08 Installationsanleitung

S®

Training Manual

Circuit Description and Troubleshooting

Course:TVP-08

Projection

Television

Course Description

and Troubleshooting:

RA-4Chassis

Prepared by: National Training Department

Sony Service Company

A Division of Sony Electronics Inc.

Course presented by______________________________________

Date___________________________________________________

Student Name ___________________________________________

Sony Service Company

AllRights Reserved

PrintedinU.S.A.

Sony and Trinitron are registered trademarks of Sony.

Features 1

Overview 1

Picture 1

Audio 1

Self-Diagnostics 3

Board Descriptions 5

Power Supply Block 7

AC Input 7

Power ON 7

Converter 7

Regulation 7

Protection 7

AC Input and Switching B+ 9

Overview 9

AC Input 9

B+ Rectifier 9

Standby Power Supply 11

Overview 11

Standby Switching supply 11

Vcc Switch (Power On) 13

Overview 13

Power ON 13

DC Protect 13

AC Protect 13

Soft Start 15

Overview 15

Soft Start - Power ON 15

Converter 17

Overview 17

Operation 17

T602 Secondary (Audio B+) 19

Overview 19

Operation 19

T601 Secondary-1 21

Overview 21

+/- 15 Volts 21

+ 11 Volts 21

+/- 22 Volts 21

Distribution 21

T601 Secondary-2 23

+7 Volts 23

+135 Volts 23

-135 Volts 23

+33 Volts 23

Table of Contents

Distribution 23

Regulation 25

Overview 25

Operation 25

DC Protection 27

Overview 27

Shut Down 27

+135 Volt Over Voltage 27

+135 Volt Over Current Protection 27

+19, +22, +7 Volt LVP 27

PS Troubleshooting 29

Overview 29

Troubleshooting 29

Protection Block 31

Overview 31

Diagnostic Indication 31

Circuit Description 33

Reset 35

Overview 35

Initial Reset 35

Power ON Reset 35

System Block Diagram 37

Overview 37

B (Standby) Bus 37

M (Main) Bus 37

P (Auto Registration) Bus 37

MID Bus 37

Video Path Block 39

Inputs 39

Main Video 39

Sub-Video 39

IC511 Video Processor 39

Input Switching 41

Overview 41

Inputs 41

Outputs 41

Main Y and C Buffers 43

Overview 43

Y Buffer 43

Sync Separator 43

C Buffer 43

3D Comb Filter 45

Overview 45

What is a 3D Comb Filter? 45

Circuit Description 45

Main Chroma Decoder 49

Overview 49

C Processing 49

Y Processing 49

H and V Sync 49

3.58 MHz 49

Main YUV Switch 51

Overview 51

Inputs 51

Output Selection 51

DRC - Digital Reality Creation 53

DRC Block 57

Overview 57

Inputs 57

DRC Processing 57

Outputs 57

Troubleshooting 57

MID - Multi Image Driver 59

MID Block 63

Overview 63

MID Inputs 63

MID Processing 63

MID Outputs 63

MID Troubleshooting 63

Video Processor 65

Overview 65

Video Processing 65

Sync Processing 65

IK/AKB 69

Overview 69

Video Drive 69

IK 69

Troubleshooting 69

Sync Paths 71

Overview 71

Sync Paths 71

Deflection Block 73

Overview 73

Vertical 73

Horizontal 73

High Voltage 73

Convergence 73

Horizontal Deflection Block 75

Horizontal Jungle 77

Overview 77

H Drive 77

H Out 79

Overview 79

H Drive 79

H Out 79

Horizontal Centering 79

Pin Amp 81

Overview 81

Pin Amp 81

H Protect/HP 83

Overview 83

HP 83

H Protect 83

Vertical Deflection Block 85

H BLK Delay and 1/2 H + Odd/Even 87

Overview 87

H BLK Delay 87

1/2 H and Odd/Even 87

VDSP 89

Overview 89

VCO 89

CDP 89

DSP 89

DAC 89

V Out 91

Overview 91

V Out 91

V Protect 91

High Voltage Block 93

HV Drive 95

Overview 95

HV Drive 95

Peak Drive 95

HV Regulation Control 99

Overview 99

Regulation Control 99

+12 High Voltage LVP 99

HV Regulation PWM 101

Overview 101

Sawtooth Generator 101

PWM 101

HV Stop 2 103

Overview 103

ABL 103

Hold Down 103

HV Stop 1 105

Overview 105

ABL 105

High Voltage Block Tap 105

+125 Volt OVP 105

Convergence Block 107

Overview 107

Convergence 107

Auto Focus (Auto Registration) 107

Sensor Amp 109

Overview 109

Auto Focus 109

Circuit Description 113

BD Input 115

Overview 115

Digital Convergence 115

BD Output 117

Overview 117

IC1707 Regi Correction 117

Convergence Out 119

Overview 119

Regi Mute 119

Convergence Amp 119

Service Mode 121

Overview 121

Normal Service Mode 121

PJED Mode 121

Protection Block 127

Overview 127

Diagnostic Indication 127

Circuit Description 129

Features

Overview

The models covered by this manual are the new KP53XBR200 and the

KP61XBR200. These two models are electrically identical. The differ-

ences have to do with screen size. Therefore they use different cabinets,

screens, mirrors and tubes. These sets also have a Self Diagnostic sys-

tem.

Picture

The two models share the following picture features:

··

·Advanced Pro-Optic System – Sony technology that allows full cor-

ner to corner focusing.

··

·New Extended Definition CRT – Allows corner to corner focusing to

be increased by 25% over last year’s model.

··

·MICROFOCUS Lens System

··

·Digital Reality Creation (DRC) – DRC uses line doubling and pat-

tern recognition algorithms to take the NTSC signal to a near HDTV

equivalent. This will be discussed in more detail later.

··

·Double Scan Technology

··

·Auto Focus Full Digital Convergence – Allows the setting of V and

H center and skew by the customer. This convergence system can

produce a sharper picture and is less susceptible to drift due to aging

or shipment.

··

·High Performance Video Processor

··

·3D Digital Comb Filter

··

·Brightview Dual Component Screen – The screen contains a Thin

Film Fresnel that brightens and sharpens the picture, and a Fine Pitch

Lenticularscreenthatachieves higherresolution byusing blackstripes

to increase contrast.

··

·Built-in High Contrast Screen

··

·First Surface Mirror – Unlike most mirrors, the reflective surface is

on the front of the mirror glass. This improves brightness and con-

trast, and eliminates ghosting caused by the reflected light passing

through the glass.

··

·Advanced Velocity Modulation

··

·Advanced High Voltage Regulation – Eliminates distortion and fo-

cus fluctuations that occur when changes in brightness levels cause

changes in the high voltage.

··

·Noise Reduction

··

·Shading Compensation – Eliminates color shift and hot spots that

can occur due to the angle of the picture tubes to the mirror.

··

·Wideband Video Amplifier

··

·Multi Image Driver – Digital-editing technology that provides versatil-

ity in controlling on-screen images. Used in Picture and Picture and

Channel Index modes.

··

·Twin View Picture-in-Picture – Allows for viewing two pictures si-

multaneously and the ability to expand either image up to double its

normal size.

··

·Free Layout Picture-in-Picture –Allowsthe PIPwindow tobe placed

anywhere on the screen.

··

·XDS (Extended Data Service) – Receives data information services

that some stations may broadcast. This data includes time, station

call letters, etc.

Audio

The two models share the following audio features:

··

·MTS Stereo with dbx NR

··

·Dolby Pro Logic Surround Sound

··

·Front Left/Right Audio Power - 20Wx2

··

·Center Audio Power – 20W

··

·Surround Audio Power – 15Wx2

··

·Center speaker input for use with a separate Dolby Pro Logic A/

V Reciever

NOTES

Inhaltsverzeichnis

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