EasyManua.ls Logo

Sony Trinitron KV-BM142M70 - User Manual

Sony Trinitron KV-BM142M70
84 pages
Save Page as PDF
Print Icon
To Next Page IconTo Next Page
To Next Page IconTo Next Page
Loading...

Table of Contents

Questions and Answers

  • L
    Leah MartinezAug 7, 2025
    How to fix snowy picture and noisy sound on Sony Trinitron KV-BM142M70 TV?
    • S
      Steven VelasquezAug 7, 2025
      If you are experiencing a snowy picture and noisy sound on your Sony TV, here are a few things to try: * Check the antenna cable and its connections at the TV, VCR, and the wall to ensure they are secure and undamaged. * Verify your antenna setup and channel presetting. If needed, contact a Sony dealer for advice, or display the “Channel Setup” menu and select “Manual Program” to preset the channel again. * If the signal transmission is weak, display the “Channel Setup” menu and set the “Signal Booster” to “Auto” from “Manual Program”. You might also consider using an external booster.
  • M
    mbakerAug 21, 2025
    What to do if my Sony Trinitron KV-BM142M70 TV has distorted picture and noisy sound?
    • D
      Dustin KingAug 21, 2025
      If your Sony TV is showing a distorted picture and producing noisy sound, it could be due to broadcast signals being too strong. If you are using an external booster, try turning it off or disconnecting it. Alternatively, you can display the “Channel Setup” menu and set the “Signal Booster” to “Off” from “Manual Program”.

Summary

Self Diagnostic Function

Diagnostic Test Indicators

Explains STANDBY indicator flash codes for problem diagnosis.

Display of Standby Indicator Flash Count

Lists flash counts for various diagnostic items.

Self-Diagnostic Screen Display

Procedure to display and interpret self-diagnosis results on screen.

Handling of Self-Diagnostic Screen Display

Guidance on managing and clearing diagnostic screen results.

Disassembly

Picture Tube Removal

Detailed instructions for safely removing the CRT picture tube.

Set-Up Adjustments

Beam Landing

Procedure for adjusting beam landing for picture alignment.

Convergence

Steps for adjusting horizontal and vertical convergence.

Focus Adjustment

Procedure for adjusting the picture focus.

G2 (Screen) Adjustments

Instructions for adjusting the G2 (screen) grid on the FBT.

White Balance Adjustment

Procedure for adjusting the white balance settings.

Circuit Adjustments

Adjustments With Commander

Guide on using the remote commander for service adjustments.

Adjustment Method

Picture Quality Adjustments

Deflection Adjustment

Picture Distortion Adjustment

Diagrams

Block Diagram

Overall system block diagram of the TV.

Schematic Diagram Information

A Board - Power Supply (Block 003) Schematic Diagram

Voltage Measurement and Waveforms

A Board Voltage List and Waveform

Lists specific pin voltages and waveforms for A board ICs.

C Board Voltage List and Waveform

Electrical Parts List

Sony Trinitron KV-BM142M70 Specifications

General IconGeneral
Screen Size14 inches
Display TechnologyCRT
BrandSony
ModelKV-BM142M70
Aspect Ratio4:3
InputsComposite, RF
Weight12 kg
TV TypeStandard Definition TV

Related product manuals