Sharp CX-34G3 - User Manual

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CX-34G3
CX-51 G3
SHARP
SERVICE MANUAL
SX7i2CX-51 G31
CX-34G3
CX-51 G3
COLOUR TELEVISION
Chassis No. SP-67
CX-34G3
MODELS
CX-51 G3
In the interests of user-safety (Required by safety regulations in some countries) the set should
be
restored
to its original condition and only parts identical to those specified should be used.
FEATURE
n Reminder/ON-Off Timer
n Blue Back Noise Mute
n English/Arabic/Chinese/French/Russian/Malay six
n PAUSECAM Dual System
Language OSD
n NTSC 4.43/3.58 MHz (AV only)
w Hyper Band PLL Tuner
n Direct Access Remote Control
n Wide Range Chopper Regulator System
n NTSC Colour-Comb Filter
n Front A/V Input Rear A/V Input/Output Terminal
n Black Strech Circuit
CONTENTS
Y
Page
Page
l SPECIFICATIONS
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2
l WAVE FORMS
. . . . . . . . . . . . . . . . . ..*..............................
22
l IMPORTANT SERVICE NOTES
. . . . . . . . . . . . . . . . . . . . . . . .
2
. DESCRIPTION OF SCHEMATIC DIAGRAM
. . . . . . .
24
l ADJUSTMENT PRECAUTIONS
. . . . . . . . . . . . . . . . . . . . . . . . 3
. BLOCK DIAGRAM
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
l TROUBLE SHOOTING TABLE
. . . . . . . . . . . . . . . . . . . . . . . . 17
. PRINTED WIRING BOARD ASSEMBLIES
. . . . . . 33
l SOLID STATE DEVICE BASE DIAGRAM
. . . . . . *.
19
l REPLACEMENT PARTS LIST
. . . . . . . . . . . ..*........... 35
l CHASSIS LAYOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
WARNING
The chassis in this receiver is partially hot. Use an isolation transformer between the line cord plug and power
receptacle, when servicing this chassis. To prevent electric shock, do not remove cover. No user -serviceable
parts inside. Refer servicing to qualified service personnel.
SHARP CORPORATION

Sharp CX-34G3 Specifications

General

Brand	Sharp
Model	CX-34G3
Category	TV
Language	English

Summary

SERVICE MANUAL

WARNING

Crucial safety information for servicing.

SPECIFICATIONS

IMPORTANT SERVICE NOTES

SERVICING HIGH VOLTAGE SYSTEM

Specific safety precautions for high voltage components.

X-RAY PRECAUTIONS

Precautions related to X-ray radiation during servicing.

BEFORE RETURNING RECEIVER CHECKS

Final safety checks before returning to the user.

ADJUSTMENT PRECAUTIONS

SERVICE MODE NAVIGATION

Details on navigating the service mode menus.

INITIAL CHANNEL SELECTION DATA

115 V ADJUSTMENT PROCEDURE

PIF CHECKING PROCEDURE

PIF;AFT;AGC ADJUSTMENT

PURITY ADJUSTMENT

CONVERGENCE ADJUSTMENT

STATIC CONVERGENCE

Static convergence adjustments.

DYNAMIC CONVERGENCE

Dynamic convergence adjustments.

CRT CUT-OFF, BACKGROUND & SUB-CONTRAST ADJUSTMENT

CRT CUT-OFF ADJUSTMENT

Specifics for CRT cut-off adjustments.

WHITE BALANCE & BACKGROUND ADJUSTMENT

Continues white balance and background adjustment procedures.

HORIZONTAL & VERTICAL CIRCUIT ADJUSTMENT

PAL CHROMA ADJUSTMENT

NTSC CHROMA ADJUSTMENT

SECAM CHROMA ADJUSTMENT

PROTECTOR PERFORMANCE CHECK

BEAM PROTECTOR CHECK

Check for beam protection.

HIGH-VOLTAGE PROTECTOR CHECK

A;V INPUT AND OUTPUT CHECK

FUNCTION CHECK (VIDEO AND AUDIO)

FUNCTION CHECK (VIDEO AND AUDIO) CONTINUED

TROUBLESHOOTING TABLE

NO RASTER ISSUE

Troubleshooting for no raster display.

NO PICTURE, NO SOUND ISSUE

Troubleshooting for no picture or sound.

NO SOUND ISSUE

Troubleshooting for no sound.

TROUBLESHOOTING TABLE (CONTINUED)

SYNCHRONIZATION ISSUES

Troubleshooting sync issues.

NO SPECIFIC COLOUR ISSUE

Troubleshooting for lack of specific color.

VERTICAL AMP & LINEARITY DEFECTS

Troubleshooting vertical amp/linearity.

NO COLOUR SYNCHRONISATION

Troubleshooting color sync issues.

NO VERTICAL SCAN ISSUE

Troubleshooting for no vertical scan.

WAVEFORMS DISPLAY

SCHEMATIC DIAGRAM DESCRIPTIONS

GENERAL SAFETY NOTES

General safety precautions for servicing.

IMPORTANT SAFETY NOTICE

Specific safety notice for servicing.

SERVICE PRECAUTION

Service precaution regarding AC mains voltage.

MODEL CX-34 G3 SCHEMATIC DIAGRAM

MODEL CX-51 G3 SCHEMATIC DIAGRAM

MODEL CX-34 G3 BLOCK DIAGRAM

MODEL CX-51 G3 BLOCK DIAGRAM