Sony KV-G142M service manual Focus Adjustment, Dynamic Convergence Adjustment Preparation

Page 14

KV-G14M2

RM-869

(2)Dynamic Convergence Adjustment Preparation :

∙Before starting this adjustment, adjust the horizontal static convergence and the vertical static convergence.

1.Slightly loosen the deflection yoke screws.

2.Remove the deflection yoke spacer.

3.Move the deflection yoke as shown in the figure below and optimize the convergence.

4.Tighten the deflection yoke screws.

5.Install the deflection yoke spacer.

R G B B G R

R B

B G R

GG

R G B

B R

B G R R G B

B R

R G B

GG

B G R

R B

(3) Screen-corner Convergence

3-3. FOCUS ADJUSTMENT

Adjust FOCUS control on the C board (RV703) for the best focus.

ba

a-d : screen-corner misconvergence

cd

Fix a Permalloy assy	b
corresponding to the
misconverged areas
a

d

c

a to d : Permalloy assembly

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Contents Trinitron Color TV Specifications Channel coverageTable of Contents Progr + Connections Presetting channels Watching the TV Adjusting the picture Rear Cover Removal F1 Board Removal Section DisassemblyBoard Removal Service Position Demagnetization Coil Removal Replacement of PartsTerminal Board Bracket Removal ∙ Removal of ANODE-CAP ∙ Removing Procedures Picture Tube RemovalSection SET-UP Adjustments Beam LandingConvergence Horizontal and Vertical Static ConvergenceFocus Adjustment Dynamic Convergence Adjustment PreparationG2 Screen and White Balance Adjustments Method of Cancellation from Service ModeMemory Section Self Diagnosis FunctionNonvolatile Section Circuit Adjustments Adjustments with CommanderAdjustment Method Adjustment Item Table OFM Item No VPX Board Adjustment After IC003 Memory Replacement Picture Distortion AdjustmentChassis SectionExploded View Electrical Parts List F35430206Diode EL1Z DescriptionDiode D1NL20 Diode GP08DREF.NO CarbonFusible WirewoundREF.NO. Part no Description Remark MetalGAP, Spark SwitchSpark GAP FILTER, Surface Wave TransformerCapacitor HOLDER, FBTScrew +BVTP Ceramic Chip3KV REF.NO. Part no Description2KV Ceramic Chip 1MF PLUG, Connector 6PPLUG, Connector 3P FilterTransistor 2SC1623-L5L6 JACK, PIN 2P Chip ConductorCOIL, VAR, Ferrite HWC Transistor DTC143TKA-T146220 10W R040 300 Thermistor Positive Tuner TRANSFORMER, Line FilterThermistor Transistor 2SC2611 Resistor SOCKET, CRTTransistor 2SC2611 Carbon Variable ResistorMANUAL, Instruction Remote CommanderBattery COVER, Remote Commander Sony Corporation