Panasonic CT-27G7DF User Manual

The service technician is required to read and follow the “Safety Precautions”and“Important Safety Notice” in this Manual.
Service Manual
Color Television
(NA7DM)
Simplified Manual
Copyright 2001 by Matsushita Electric Corporation of America. All rights reserved. Unauthorized copying and distribution is a violation of law.
“WARNING! This Service Manual is designed for experienced repair technicians only and is not designed for use by the general public.
It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.
Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to
service or repair the product or products dealt with in this Service Manual by anyone else could result in serious injury or death.”
ORDER NO. MTNC020101A1
B5
Panasonic
CT-27G7DF JP363
CT-27G7DUF JP363
CT-27G7SDF JP363
CT-27G7SDUF JP363
Chassis
Models
S
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m
p
l
i
f
i
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d
This simplified service manual is issued to add listed models to the main service manual, order No. MTNC010306C1
(CT-27G6E); Models CT-27G7DF/DUF are similar to CT-27G6E. A full set of schematics, unique settings, and a com-
plete parts list are included in this simplified manual.
Please file and use this simplified service manual together with main service manual, order No. MTNC010306C1.

Panasonic CT-27G7DF Specifications

General

Brand	Panasonic
Model	CT-27G7DF
Category	TV
Language	English

Summary

Important Safety Notice

General Guidelines

General advice for servicing, use of isolation transformer, handling parts.

Safety Precautions

Advice on handling high voltage, picture tubes, and avoiding X-ray exposure.

Leakage Current Hot Check

Procedure for checking leakage current with the unit powered on.

X-ray Radiation

Warning about X-ray sources and the need for protection.

High Voltage (CRT Anode)

Procedure for measuring and verifying the CRT anode high voltage.

Leakage Current Cold Check

Procedure for checking leakage current with the unit powered off.

Service Notes

Leadless Chip Component

Guidelines for identifying, removing, and installing surface-mount components.

Component Removal

Steps for safely removing leadless and chip components from the board.

Chip Component Installation

Procedures for correctly installing surface-mount components onto the board.

How to Replace Flat-IC

Step-by-step instructions for replacing surface-mount integrated circuits (Flat-ICs).

X-ray Protection Circuit Check & Adjustments

Equipment

Lists necessary tools and test equipment for the procedure.

Procedure

Step-by-step guide for checking and adjusting X-ray protection circuits.

Replacement Parts List

Schematic Notes

SCHEMATIC NOTES

General notes and symbols used in the schematic diagrams.

VOLTAGE MEASUREMENTS

Guidelines and procedures for taking voltage measurements.

WAVEFORM MEASUREMENTS

Guidelines and procedures for taking waveform measurements.

A-Board IC Voltages

IC001

Measured voltages for IC001.

IC002

Measured voltages for IC002.

IC451

Measured voltages for IC451.

IC2201

Measured voltages for IC2201.

IC003

Measured voltages for IC003.

IC551

Measured voltages for IC551.

IC005

Measured voltages for IC005.

IC552

Measured voltages for IC552.

IC006

Measured voltages for IC006.

IC553

Measured voltages for IC553.

IC050

Measured voltages for IC050.

IC801

Measured voltages for IC801.

A-Board Transistor Voltages

C-Board Transistor Voltages