Sanyo DS19500 User Manual

Specifications
Power Rating . . . . . . . . . . . . . . . . . . . . . 120V, 60Hz
58W (Avg), 1.4A (Max)
Antenna Input Impedance. . . . . . . . . . . . . . . . . 75Ω
UHF/VHF/CATV
Receiving Channel . . . . . . . . . . . . . . . . 2 - 13 (VHF),
14 - 69 (UHF),
01, 14-94, 95-125 (CATV)
Remote Ready . . . . . . . . . . 24 Key Remote Control
Sound Output . . . . . . . . . . . . . . . . . . . . . . 1.0 W/CH
Intermediate Frequency
Picture IF Carrier. . . . . . . . . . . . . . . . . . 45.75MHz
Sound IF Carrier . . . . . . . . . . . . . . . . . . 41.25MHz
Color Sub Carrier . . . . . . . . . . . . . . . . . 42.17MHz
Picture Tube. . . . . . . . . . . . . . . . . . A48KRD82X(DT)
Semiconductors
Integrated Circuits. . . . . . . . . . . . . . . . . . . . . . . . 8
Transistors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Except within Tuner and RC Pre-Amp.
Cabinet Dimensions
Width. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 488mm
Height . . . . . . . . . . . . . . . . . . . . . . . . . . . . 452mm
Depth. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 468mm
REFERENCE No. SM5110088-07
DS19500, G8FLM, PRODUCT CODE 111350180
AS
FILE NO.
SM5110088
REF : No.
COLOR TELEVISION
Notice
CORRECTION
SERVICE FLASH
PRODUCTION CHANGE
ADD INFORMATION
Please add this notice to the Service Manual listed below.
REVISION 07
Category :
DS19500
Model:
U.S.A. / CANADA
Destination:
MAY / 15 / 2002
Date:
19500-07
Effective from : Chassis No.
NOTE: Match the Chassis No. on the unit’s back cover with the Chassis No. in the Service Manual.
If the Service Manual Chassis No. does not match the unit’s, additional Service Literature is
required. This chassis is similar to Chassis No. 19500-00, however, all Service Information is
given in this Notice for Chassis No. 19500-07 used in Model DS19500.
Contents
Safety Instructions . . . . . . . . . . . . . . . . . . 2
Service Adjustments. . . . . . . . . . . . . . 3 - 9
Purity and Convergence . . . . . . . . . 10 - 11
Service Hints. . . . . . . . . . . . . . . . . . . . . . 12
Mechanical Disassemblies. . . . . . . . . . . 13
Chassis Electrical Parts List . . . . . . 14 - 20
Cabinet Parts List . . . . . . . . . . . . . . . . . . 21
Component and Test Point
Locations . . . . . . . . . . . . . . . . . . . 22 - 24
Schematic Insert . . . . . . . . . . . . . . . 25 - 32
Schematic Notes . . . . . . . . . . . . . . . . . 25
Pin Layouts . . . . . . . . . . . . . . . . . . . . . 25
Capacitor and Resistor Codes . . . . . . 25
Block Diagram. . . . . . . . . . . . . . . 26 - 27
Voltage Charts . . . . . . . . . . . . . . . 26 - 28
Waveforms. . . . . . . . . . . . . . . . . . . . . . 28
Schematic Diagram . . . . . . . . . . . 29 - 32

Sanyo DS19500 Specifications

General

Brand	Sanyo
Model	DS19500
Category	TV
Language	English

Summary

Specifications

Safety Instructions

Safety Precautions

General guidelines to prevent electrical shock and ensure safe operation.

X-Radiation Precaution

Warning about potential X-radiation from picture tube and high voltage.

High Voltage Hold-Down Test

Procedure to test the high voltage hold-down circuit for safety.

Product Safety Notice

Emphasizes using specific replacement parts for safety.

Service Adjustments

Initial Bus Data Setup

Steps to set initial data in EEPROM after replacement for proper operation.

On-Screen Service Menu System

Explains how to access and navigate the TV's service menu.

Service Adjustment Details

Program Codes

Importance of correct program codes for model-specific features.

Drive / Bias Adjustments

Procedures for adjusting Red/Blue Drive and Bias levels via remote.

Operational Adjustments

Installation and Protection

Details on antenna connections and circuit protection measures.

Diagnostic Checks

Procedures for checking +B voltage, VCO, and RF AGC settings.

Picture Alignment Adjustments

Steps for horizontal, vertical, and video level picture alignment.

Advanced Picture Adjustments

Grayscale Adjustment

Procedure for adjusting red, green, and blue bias and drive levels for grayscale.

Brightness Level Adjustment

Steps to adjust the brightness level using a color-bar generator.

High Voltage Check

Procedure to check the high voltage output for proper operation.

Audio Adjustments

Sound Adjustment

Procedure for adjusting FM level using an oscilloscope and signal generator.

Separation Adjustment

Procedure for adjusting stereo separation for audio signals.

Purity and Convergence Adjustments

Purity Adjustments

Steps to adjust the deflection yoke and magnets for picture purity.

Convergence Adjustment Details

Center Convergence Adjustment

Procedure to align color convergence lines in the picture center.

Outer Area Convergence Adjustment

Steps to adjust yoke position for convergence in picture edges.

Service Hints

Power Failure Detector

Explains the power failure detection function and troubleshooting steps.

Mechanical Disassemblies

Cabinet Back Removal

Steps to remove the television's back cabinet.

Chassis Removal

Procedure for safely removing the main chassis from the cabinet.

Picture Tube Removal

Instructions for removing and replacing the picture tube.

Chassis Electrical Parts List

Cabinet Parts List

Component and Testpoint Locations

Main Board Parts Side

Diagram showing component and testpoint locations on the main board.

Picture Tube Socket Board Components

Diagram showing component locations on the picture tube socket board.