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Sony Trinitron KV-29DRC420 User Manual

Sony Trinitron KV-29DRC420
153 pages
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TRINITRON
®
COLOR TELEVISION
SERVICE MANUAL
DA-4
CHASSIS
MODEL NAME REMOTE COMMANDER DESTINATION CHASSIS NO.
9-965-963-04
KV-27HS420
RM-Y197 US SCC-S66P-A
KV-27HS420
RM-Y197 CANADA SCC-S70N-A
KV-29DRC420
RM-Y197 LATIN NORTH SCC-S71L-A
KV-29DRC420
RM-Y197 LATIN SOUTH SCC-S71M-A
KV-30HS420
RM-Y197 US SCC-S66Q-A
KV-30HS420
RM-Y197 CANADA SCC-S70P-A
KV-30HS420
RM-Y197 HAWAII SCC-S69H-A
KV-32HS420
RM-Y197 US SCC-S66R-A
KV-32HS420
RM-Y197 CANADA SCC-S70Q-A
KV-34HS420
RM-Y197 US SCC-S66S-A
KV-34HS420
RM-Y197 CANADA SCC-S70R-A
KV-36HS420
RM-Y197 US SCC-S66T-A
KV-36HS420
RM-Y197 CANADA SCC-S70S-A
KV-36HS420
RM-Y197 HAWAII SCC-S69J-A
This manual is for units starting with the following S/N’s:
4,000,001 to 4,499,999
8,000,001 to 8,499,999
9,000,001 to 9,499,999
HISTORY INFORMATION FOR THE FOLLOWING MANUAL:
ORIGINAL MANUAL ISSUE DATE: 5/2004
UPDATED ITEM
REVISION DATE SUBJECT
5/2004 No revisions or updates are applicable at this time.
11/2004 Reissue entire manual.
12/2004 Corrected Self-Diagnostic Circuit Diagram - Replaced Page 9
7/2005 Added Serial Number range to Front Cover and History Information pages
Corrected instructions for 2-1. Beam Landing - Replaced Page 22
Corrected Block Diagram for HS Signal Flow - Replaced Page 62
Corrected DZ Board Schematic Diagram (Page 1 of 2) - Replaced Page 65
Corrected PN for AY Board for 36” model in Section 6: Exploded Views - Replaced Page 102
Corrected PN for AY Board for 36” model in Section 7: Electrical Parts List - Replaced Page 120 & 121

Table of Contents

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Sony Trinitron KV-29DRC420 Specifications

General IconGeneral
Screen Size29 inches
Display TypeCRT
Aspect Ratio4:3
Remote ControlYes
Input PortsComposite, S-Video, Component
Audio OutputStereo

Summary

Specifications

Warnings and Cautions

Safety Check-Out

Leakage Test

Measures AC leakage from exposed metal parts to earth ground, limit 0.5 mA.

Earth Ground Check

Procedure for identifying a reliable earth ground connection for leakage testing.

Self-Diagnostic Function

Diagnostic Test Indicators

Defines how LED flashes indicate specific error causes and symptoms.

Self-Diagnostic Screen Display

How to bring up and interpret error codes shown on the TV screen.

Clearing the Result Display

Procedure to reset diagnostic results to zero after repairs are completed.

Section 1: Disassembly

Rear Cover Removal

Steps for removing the rear cover of the television.

Chassis Assembly Removal

Procedure for carefully detaching the chassis assembly from the bezel.

Service Position

Instructions on how to position the unit for safe and effective servicing.

Picture Tube Removal

Safe procedure for removing the picture tube, emphasizing high voltage discharge.

Anode Cap Removal Procedure

Detailed steps and precautions for removing the anode cap from the picture tube.

Section 2: Set-Up Adjustments

Beam Landing

Adjusts the convergence of red, green, and blue electron beams on the screen.

V-PIN and V-CEN Adjustment

Adjusts vertical pin cushion and vertical centering for picture geometry.

Convergence

Adjusts the alignment of red, green, and blue dots for precise image display.

Focus Adjustment

Adjusts the sharpness and clarity of the picture by controlling electron beam focus.

Dynamic Focus/Dynamic Quadrapole Data

Provides data for dynamic focus and quadrapole adjustments, crucial for focus across the screen.

Screen (G2) Adjustment

Adjusts the screen grid voltage (G2) for proper picture brightness and contrast.

Picture Quality Adjustments

Covers adjustments for video input contrast, hue, and color settings.

White Balance (CRT) and Sub Bright Adjustment

Adjusts CRT white balance and sub bright for accurate color reproduction.

Color Offset Adjustment Procedure

Steps to adjust color offset for white balance accuracy.

H Raster Center Adjustment

Adjusts the horizontal position of the raster on the screen for centering.

Picture Distortion Adjustments

Corrects geometric distortions like trapezoid, pincushion, and line straightness.

Section 3: Safety Related Adjustments

Preparation Before Confirmation

Sets up the unit and checks input voltage before performing safety checks.

B+ Voltage Checks

Verifies B+ voltage levels and HV output to ensure safe operation. Includes protector checks.

Ik Protector Check

Checks the Ik protector circuit to ensure proper operation and prevent damage.

Hold Down Check

Confirms the hold-down function activates correctly, indicating proper power supply operation.

Restoration

Procedures to restore the unit after service, including reconnecting wires and resetting settings.

Section 4: Circuit Adjustments

Setting Service Adjustment Mode

Instructions for entering and navigating the service adjustment mode using the remote.

Reading Memory Data

Procedure to retrieve and display data stored in the TV's memory.

Adjusting Picture Settings

Steps for modifying picture parameters using service mode adjustments.

Resetting Data

Cautions and procedures for resetting NVM data, including deflection adjustments.

Copy Function

How to copy adjusted data (e.g., DF/DQP) between modes or memory locations.

Remote Adjustment Buttons and Indicators

Identifies and explains the function of remote control buttons used for service adjustments.

Service Data

Service Data

Provides default values and ranges for various circuit adjustments and settings.

Section 5: Diagrams

Circuit Boards Location

Identifies the physical location and names of the main circuit boards within the TV.

Printed Wiring Boards and Schematic Diagrams Information

Provides guidance on interpreting PWB layouts and schematic diagrams.

Block Diagrams

Illustrates the signal flow and interconnections between major functional blocks.

Schematics and Supporting Information

Contains detailed circuit diagrams and associated data for troubleshooting.

Reference Information

Explains symbols, abbreviations, and component notations used throughout the manual.

Semiconductors

Illustrates the physical appearance and pinouts of various semiconductor components used in the TV.

Section 6: Exploded Views

Chassis (KV-27HS420/29DRC420)

Exploded view of the TV chassis, showing internal parts and their assembly.

Picture Tube (KV-27HS420/29DRC420)

Exploded view of the picture tube assembly, detailing its components.

Chassis (KV-30HS420/34HS420)

Exploded view of the chassis for 30-inch and 34-inch models.

Picture Tube (KV-30HS420/34HS420)

Exploded view of the picture tube assembly for 30 and 34-inch models.

Chassis (KV-32HS420/36HS420)

Exploded view of the chassis for 32-inch and 36-inch models.

Picture Tube (KV-32HS420/36HS420)

Exploded view of the picture tube assembly for 32 and 36-inch models.

Section 7: Electrical Parts List

Electrical Parts List

Comprehensive list of all electrical components, including part numbers, descriptions, and values.

Reference Information

Explanations of component symbols, abbreviations, and notations used in the parts list.

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