JVC HV-29LPZ/-A Removing the CRT, Silicon grease product No. KS 650N, CRT Change Table Approx

Page 10

HV- 29LPZ

REMOVING THE CRT

Replacement of the CRT should be performed by 2 or more persons.

After removing the cover, chassis etc.,

1.Putting the CRT change table on soft cloth, the CRT change table should also be covered with such soft cloth (shown in Fig.3).

2.While keeping the surface of CRT down, mount the TV set on the CRT change table balanced will as shown in Fig.4.

3.Remove 4 screws marked by arrows with a box type screw driver as shown in Fig.4.

Since the cabinet will drop when screws have been removed, be

sure to support the cabinet with hands.

4.After 4 screws have been removed, put the cabinet slowly on cloth (At this time, be carefully so as not to damage the front surface of the cabinet) shown in Fig.5.

The CRT should be assembled according to the opposite sequence of its dismounting steps.

The CRT change table should preferably be smaller that the CRT surface, and its height be about 35cm. (Fig.3)

About CRT Spacer (Fig.4)

An appropriate CRT spacer should be used in the corresponding CRT in accordance with the type of the CRT.

When a CRT is replaced, special attention should be paid to this matter.

COATING OF SILICON GREASE FOR ELECTRICAL INSULATION ON THE CRT ANODE CAP SECTION.

Subsequent to replacement of the CRT and HV transformer or repair of the anode cap, etc. by dismounting them, be sure to coat silicon grease for electrical insulation as shown in Fig.6.

Wipe around the anode button with clean and dry cloth. (Fig.6) Coat silicon grease on the section around the anode button. At this time, take care so that any silicon greases dose not stick to the anode button. (Fig.7)

Silicon grease product No. KS - 650N

CRT CHANGE TABLE

APPROX.

35cm

CLOTH

Fig. 3

Fig. 4

CRT

 

CABINET

CRT

 

 

 

 

 

 

CHANGE TABLE

 

 

 

 

 

 

 

Fig. 5

 

 

 

 

 

CRT

Anode button

Silicon grease coating

Approx. 20mm (Do not coat grease on this section

Anode button (No sticking of silicon grease)

Silicon grease should be coated

by 5mm or more

from the outside diameter of anode cap.

Coating position of silicon grease

Fig. 6

Anode cap

Fig. 7

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No. 52012

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Contents Contents HV-29LPZ HV-29LPZ HV-29LPZ HV-29LPZSpecifications Safety Precautions Features Main Difference ListMain PWB System Block DiagramMicom PWB Sync SEP PWBFunctions Front Terminal & ControlRemote Control Unit SUB-PICTURESpecific Service Instructions Disassembly ProcedureDome Control Base Micom Power & DEF PWB Claw ChassisHV- 29LPZ Speaker BOXCRT Change Table Approx Removing the CRTSilicon grease product No. KS 650N Cloth CRT Cabinet Change TableSystem Constant SET Model No Setting item Setting Values of System Constant SET TableService Menu Setting Items Table Setting item Setting valuePicture Features User Setting Values TablePicture Setting SoundAdjustment Items Service AdjustmentsBefore Starting Service Adjustment Measuring Instrument and FixturesTOP Adjustment LocationsFron T FrontService Menu Items Basic Operation Service MenuTool of Service Menu Operation Zoom Aspect FreqWB Preset Shipping OFF Basic Operation of Service MenuVSM Preset Service MenuService Menu Screen Service MenuRelease of Service Menu Method of SettingAUDIO, 6. STATUS, 9. Shippingoff & 0. BUS Free RGB BLK AdjustmentChecking Item DEF PWBFocus Adjustment of Focus & ScreenAdjustment Signal Screen VRBright Sharp Colour Tint VSM Preset SettingStandard Soft Setting Values of VSM Preset BrightVIDEO/CHROMA Circuit Adjustment Method of adjustment without measuring instrument PAL/SECAM/NTSC Colour ⅠPAL/SECAM/NTSC Colour Ⅱ CRT SUB Tint SUB Tint Ⅱ CRT100Hz 60Hz p DEF. Circuit AdjustmentRegular Zoom Fixed ValueSize AdjustmentShift Aspect Zoom Screen Regular PositionAspect Mode ADJ. Item RegularCenter FixedCorner TrapezCOR-PIN COR-UP12.V-S.CR LIN13.V.LIN AUDIODo not adjust Setting item Variable range Fixed value Audio Circuit AdjustmentQuasi Magnets PURITY, Convergence AdjustmentPurity Adjustment Purity MagnetStatic Convergence Adjustment Front ViewSoldering Iron Replacement of Chip ComponentReplacement Steps # Resistors, capacitors, etcHV- 29LPZ