Mitsubishi Electronics VS-60609 Deflection Circuit Purpose, Height and Vert. Linearity Symptom

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MODELS: VS-45609 / VS-50609 / VS-55609 / VS-60609 / VS-60719 / VS-70709

[Deflection Circuit]

Purpose:

To set the vertical height and linearity.

16. Height and Vert. Linearity

Symptom:

Incorrect height and/or vertical non-linearity.

Measuring

-----

1.

Supply a Monoscope signal to the Video or RF Input.

Instrument

 

Test Point

-----

2.

Activate the Service Mode, VCJ Function.

 

3.

Adjust Item “2 VHT” so the sum of the vertical markers is 4.

 

 

Ext. Trigger

------

4.

Adjust Item “4 VLR” so the large Monoscope circle is round.

Measuring

-----

5.

Save the data and exit the Service Mode.

 

 

 

Range

 

 

 

 

Input Signal

Monoscope

 

 

 

Input Terminal

Video or RF Input

 

 

 

SERVICE MODE

Activate …….. MENU-0-1-5-7

Function …...………..AUDIO

Item No. ……….…….VIDEO

Adjust Data ….…….ADJUST

Save Data …. ………ENTER

Exit …………..MENU (twice)

[Convergence Circuit]

Purpose:

Converge red, green and blue at the screen center.

17. Static Convergence

Symptom:

Color edging over most of the picture.

Measuring

-----

Instrument

 

Test Point

-----

Ext. Trigger

------

Measuring

-----

Range

 

Input Signal

Monoscope/Crosshatch

Input Terminal

Video or RF Input

CONVERGENCE MODE

Activate ……..MENU-0-1-5-9

Misc. ……………….……"6"

Coarse………………..…."5"

Fine ……………………..."4"

Color (R,G B or DF)...AUDIO Item No………….…..VIDEO

Adjust/Move……….ADJUST

Cursor Toggle….…..ENTER Save & Exit…..MENU (twice)

Note: If not correct, preset Vertical Linearity, Service Mode, VCJ Function, Item “4 VLIN”.

Preliminary:

Degauss the shield cover and bracket unit of the CRT assembly and chassis sheet metal. Do Not degauss the CPM Assemblies.

Centering and Static Convergence

1.Supply a Monoscope signal to the Video or RF Input.

2.Enter the Coarse Convergence Mode

3.Press “2” (green Monoscope is displayed)

3.Press “7” (removes HSTA and VSTA drive from the Convergence circuit).

4.Use the Green Centering Magnet to center the green monoscope on the screen.

6.Rotate the Green Yoke to correct any tilt.

7.Exit the Convergence Mode.

Note: If the green raster centering shifts when exiting the Convergence Mode, use Coarse Green Items “1 HSTA” and “2 VSTA” to correct centering.

8. Supply an External Crosshatch Pattern

9. Use the Red Centering Magnet to converge the red crosshatch on the green at the center of the screen, and remove any red tilt by rotating the Red Yoke.

10.Repeat Step 9 for the blue crosshatch, using the Blue Centering Magnet and Blue Yoke.

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Contents VZ9 ModelsMitsubishi Digital Electronics AMERICA, INC Page Contents Chip Parts Replacement Replacement Parts Service Parts List Circuitry Block DiagramsProduct Safety Notice IntroductionSafety Precautions Radiation warningLeakage current check Cabinet Disassembly Front View Front Cabinet DisassemblyRefer to Parts List for Part Numbers Cabinet Disassembly Rear View Rear Cabinet DisassemblyPage Size Length Table aCabinet Separation Procedure VS-70709 1c. VS-70709 Cabinet Separation PrecedureDiamondShield Removal Procedure DiamondShield Installation ProcedureServicing the Diamondshield Top & Bottom Molding Clips Side Molding ClipsChassis Removal and PCB Locations Major Parts LocationsCRT Replacement Removal of the CRTPage Adjustment procedures after replacing the CRTs Electrical Adjustments Test SignalMonoscope Signal Color Bar SignalInitial Settings Option Menu SetupDefault Settings Description Initial SettingLED Indicator Diagnostics Error Code Operational CheckError Codes AV MemoryAdjustment Functions Activating the Circuit Adjustment ModeSelection of adjustment Functions Adjustment Items Changing DataConvergence Adjustment Mode Fine Conv Press Sub FunctionsCursor Cursor CoordinatesSaving Data and Exiting the Convergence Mode DisplayAdjustment Items List Audio FunctionPIP Function Convergence Mode Items HR FunctionConv Misc Conv GreenConv RED Conv BlueDF Function VkeyPage Service Mode Audio Circuit PurposeInput Level Audio Function Abbrev DataHigh Voltage Control Symptom Dynamic Focus SymptomConvergence Mode High Voltage Circuit PurposeLens Focus Symptom Blurred picture Focus VerificationMENU-0-1-5-9 Color PressCRT Cutoff Symptom Abbr Data Service ModeCRT Circuit Purpose CRT CurrentLow Color Temperature Service Mode Activate …….. MENU-0-1-5-7Color and Tint Symptom PIP Circuit PurposePIP Insert Picture 13. Cb, Cr Offset Symptom Cb, Cr Circuit PurposeOn-screen display is not positioned correctly Abbr Data Height and Vert. Linearity Symptom Deflection Circuit PurposeConvergence Circuit Purpose Convergence Circuit Purpose Coarse Convergence Fine Convergence Symptom Color edging at the top, bottom and sides of the pictureReplacement Chip Parts Removal Resistors, Capacitors, etcChip Parts Removal Transistors Critical and Warranty Parts Designation Parts OrderingParts Tolerance Codes Model AbbreviationsRemote Control Quick Reference for Common Replacement PartsCRT Assemblies High Voltage / Deflection ComponentsTubes Integrated CircuitsTransistors DiodesCoils COIL-CHOKE ZTS6620Transformers Variable ResistorsResistors R521 Carbon 1/4W 10K-JR529 Fuse 1/2W 0.82-JCapacitors & Trimmers Composition 1/2W 4.7M-KComposition 1/2W 1M-K CER-CHIP CH50V 82P-J CER-CHIP SL50V 470P-JCER-CHIP CH50V 47P-J CER-CHIP CH50V 68P-JC552 C554PLA-PP 200V 0.47M-J C568C901 Poly 250VAC 0.1M-M C902Poly 250VAC 0.1M-M C903 CER 250VAC 1000P-M C904Accessories MiscellaneousPrinted Circuit Boards Screen Parts Screen Assembly Power Supply Circuitry Block DiagramsVIDEO/COLOR Signal Path Sound Circuit Deflection Protect Circuit Convergence Circuitry Control Circuit Page Page Page Page Page Page Page Page Page Page Page
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