Sony Trinitron KV-32TW77 User Manual

Television system
Channel coverage
Picture tube
Antenna
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KV-27TW77/271W78
__KV-32TW77/32TW78
SERVICE
MANUAL
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KV-27TW77/27TW78 | KV-27TS29/27TS32/27TS36
KV-32TW77/32TW78 | KV-32TS36/32TS46
KV-2970RS /2970M/2975M
SPECIFICATIONS
American TV standards Input
VHF: 2-13
UHF: 14-69
Cable TV: 1-125
Hi-Black Trinitron® tube
27-inch picture measured diagonally
29-inch picture tube measured
diagonally (KV-27TW77/27TW78)
32-inch picture measured diagonally
34-inch picture tube measured ~
diagonally (KV-32TW77/32TW78) Output
75-ohm external antenna terminal for ;
VHF/UHF .
2
RM-Y118
US Model
KV-27TW/77 Chassis No. SCC-F84F-A
KV-27TW78 Chassis No. SCC-F84G-A.
KV-32TW/77 Chassis No. SCC-F84J-A
KV-32TW/78 Chassis No. SCC-F84K-A
AA- 1 CHASSIS
MODELS OF THE SAME SERIES .
VIDEO and S VIDEO
S VIDEO IN (S terminal)
Y: 1 Vp-p, 75-ohms unbalanced,
sync negative
C:.0.286 Vp-p (Burst signal),
75-ohms
Video (phono jacks): 1 Vp-p,
75-ohms unbalanced, sync
negative
Audio (phono jacks): 500 mVrms
(100% modulation)
Impedance: 47 kilohms
AUDIO OUT (phono jacks) .
More than 408 mVrms at the
maximum volume setting (variable)
More than 408 mVrms (fix)
impedances: 5 kilohms
— Continued on next page —
TRINITRON© COLOR TV
SONY.

Sony Trinitron KV-32TW77 Specifications

General

Brand	Sony
Model	Trinitron KV-32TW77
Category	TV
Language	English

Summary

Service Manual

General Specifications

Details key technical specifications for television system, channel coverage, picture tube, and inputs/outputs.

Safety and Accessories

Critical Safety Warnings

Highlights crucial safety precautions, including anode handling and electrical shock hazards.

Safety Check-Out Procedures

AC Leakage Testing

Steps for performing an AC leakage test on exposed metal parts.

Establishing Earth Ground Connection

Methods for ensuring a proper earth ground connection for safety tests.

General Information (Continued)

Automatic Channel Presetting

Procedure for scanning and storing all available TV channels automatically.

Manual Channel Adding

Picture-in-Picture (PIP) Operation

Comprehensive guide on using the PIP feature to watch two video sources simultaneously.

Setting the Internal Clock

ON/OFF Timer Programming

How to set the TV to turn on or off automatically at a scheduled time.

Channel Blocking Configuration

Procedure for blocking specific channels to prevent unauthorized viewing.

Customizing Channel Call Signs

Channel Erase Function

Disassembly Procedures

Disassembly Procedures (Continued)

Picture Tube Removal (KV-27TW77/27TW78)

Detailed instructions for safely removing the picture tube, including anode cap procedures.

Picture Tube Removal (KV-32TW77/32TW78)

Detailed instructions for safely removing the picture tube, including anode cap procedures.

Chip Component Soldering and Repair

Guidelines for soldering and repairing circuit boards with surface-mount chip components.

Mini-Transistor Removal and Mounting

Flat Package IC Handling

Four-Directional Flat Package IC Handling

Set-Up Adjustments

Beam Landing Adjustment Procedure

Steps for aligning the electron beam to ensure correct picture geometry and purity.

Set-Up Adjustments (Continued)

Static Convergence Adjustment

Adjusting horizontal and vertical convergence for proper color alignment at the screen center.

Dynamic Convergence Adjustment Techniques

Procedures for optimizing dynamic convergence using deflection yoke and magnets.

Dynamic Convergence Circuit Adjustments (32-inch)

Focus Adjustment Procedure

How to adjust the focus control on the flyback transformer for a clear picture.

G2 (Screen) and White Balance Calibration

Adjusting screen bias and white balance for accurate color reproduction.

Screen-Corner Convergence Adjustment

Safety Related Adjustments

R511 Hold-Down Confirmation and Readjustment

Procedure to verify and adjust safety circuit R511 after component replacement.

R524 Hold-Down Confirmation and Readjustment

Procedure to verify and adjust safety circuit R524 after component replacement.

Safety Related Adjustments (Continued)

B+ Voltage Confirmation Procedure

Steps to confirm the B+ voltage, a critical safety parameter, after repairs.

Circuit Adjustments

Electrical Adjustment via Remote Commander

Using the remote commander to access and perform internal electrical adjustments.

Circuit Adjustments (Continued)

List of Adjustable Parameters

M Board Frequency Adjustments (HFRE/VFRE)

Specific procedures for adjusting the H.Frequency (HFRE) and V.Frequency (VFRE) on the M board.

SPIX, SHUE, SCOL, SBAL, DISP Adjustments

Horizontal and Vertical Geometry Adjustments

Instructions for adjusting H/V Center, Size, Linearity, and Correction parameters.

Chroma Trap and P Board Adjustments

Procedures for adjusting the Chroma Trap (CROM) and P Board Position (PHPO).

Diagrams

Block Diagrams Overview

Frame Schematic and Board Locations

Schematic Diagrams and Printed Wiring Boards

Diagrams (Continued)

D Board Schematic Diagram

A, E, and H Board Schematic Diagrams

A, E, and H Board Schematic Diagrams (Continued)

P Board Schematic Diagram

P Board Schematic Diagram (Continued)

Circuit Board Layouts (A, H, E Boards)

UA Board Schematic Diagram

UA Board Layout

P Board Layouts (Conductor and Component Sides)

M Board Layouts (Conductor and Component Sides)

C Board Schematic Diagram

C Board Layout

Semiconductor Identification

Visual identification and part numbers for various semiconductor devices.

Exploded Views

Chassis Assembly Breakdown

An exploded view diagram showing the parts and assembly of the TV chassis.

Exploded Views (Continued)

Outer Cover Assembly Breakdown

An exploded view diagram illustrating the disassembly of the TV's outer covers and panels.

Picture Tube Assembly Breakdown

An exploded view detailing the parts and assembly related to the TV's picture tube.

Electrical Parts List

Capacitor Part Numbers and Specifications

Electrical Parts List (Continued)

Coils, Transistors, and Resistors List

Capacitors, Connectors, Diodes, and ICs List

Parts List Continuation (Connectors, Diodes, ICs, etc.)

Electrical Parts List Continuation (Resistors, Crystals, etc.)

Electrical Parts List Continuation (Transistors, Switches, etc.)

Electrical Parts List Continuation (Coils, Transistors, Resistors, etc.)

Electrical Parts List Continuation (Capacitors, Connectors, Diodes, etc.)

Electrical Parts List Continuation (Ferrite Beads, ICs, etc.)

Electrical Parts List Continuation (Resistors, Switches, ICs, etc.)

Electrical Parts List Continuation (Resistors, Accessories, Miscellaneous)