JVC AV-1435, AV-14FMT3 Service Adjustments, Before Starting Service Adjustment, Adjustment Items

Page 15

AV-14F3/AV-1435

AV-1435EE/AV-1435TEE

AV-14FMT3/AV-1438

AV-14FMG3/AV- 14FMG3B

SERVICE ADJUSTMENTS

BEFORE STARTING SERVICE ADJUSTMENT

1.There are 2 way of adjusting this TV: One is with the REMOTE CONTROL UNIT and the other is the conventional method using adjustment parts and components.

2.The adjustment with the REMOTE CONTROL UNIT is made on the basis of the initial setting values. The setting values which adjust the screen to its optimum condition may differ from the initial setting values.

3.Make sure that connection is correctly made to AC power source.

4.Turn on the power of the set and equipment before use, and start the adjustment procedures after waiting at least 30 minutes.

5.Unless otherwise specified, prepare the most suitable reception or input signal for adjustment.

6.Never touch any adjustment parts, which are not specified in the list for this adjustment VRs, transforms, condensers, etc.

7.Preparation for adjustment

Unless otherwise specified in the adjustment instructions, preset the following functions with the REMOTE CONTROL UNIT.

User mode position

PICTURE MODE (VSM)

BRIGHT

VNR

OFF

TINT / COLOUR / BRIGHT

CENTER

CONT. / SHARP

 

 

 

BLUE BACK

OFF

OFF TIMER

OFF

AI ECO SENSOR

OFF

AUTO SHUT OFF

OFF

MEASURING INSTRUMENT AND FIXTURES

1.DC voltmeter (or digital voltmeter)

2.Oscilloscope

3.Signal generator (Pattern generator) [PAL / SECAM / NTSC]

4.Remote control unit

ADJUSTMENT ITEMS

Ad justment item

Ad justment item

 

 

B1 POWER SUPPLY

DEFLECTION circuit adjustment

 

 

FOCUS adjustment

VSM PRESET setting

 

 

IF circuit adjustment

PURITY/ CONVERGENCE adjustment

 

 

V/C (Video / Chroma) circuit adjustment

 

 

 

No. 52026

15

Image 15
Contents Contents Specifications EntsAV-14F3 / AV-1435 AV-14FMT3 / AV-1438 Safety Precautions Features Rear Terminal FunctionsRemote Control Unit Main Difference List Part NameModel Name Specific Service Instructions AV-14FMG3/AV- 14FMG3B System CONSTANT-Ⅲ KEY Assignment of Remote Control Unit Service MenuSystem CONSTANT-Ⅰ System CONSTANT-ⅡSetting item Setting value Setting of System Constant SETSetting value Setting item Setting contents User Setting ValuesInitial Setting Value of Service Menu NT SC PresetSound System Do Not Adjust Setting item PAL SecamReplacement of IC301 if V/C Decoder ProceduresLocations of Front Panel Buttons and LAM PS Measuring Instrument and Fixtures Service AdjustmentsBefore Starting Service Adjustment Adjustment ItemsKEY Assignment of Remote Control Unit Basic Operation of Service MenuShould be OFF Method of settingC, 3.DEF and 4.VSM Preset Setup TourService Menu Flow Chart Lowerscreen Adjustment LocationsTP-E CRT Earth Wire Braided Assy UpperfocusIf Circuit Adjustment AdjustmentsB1 Power Supply Focus AdjustmentMatsushita Delay PointPoint AGCVideo / Chroma Circuit Adjustment SUB Method of adjustment without measuring instrumentSUB Bright Ad justment RemoteOscillo TP-E # Method of adjustment using measuring instrumentSUB Generator Colour ⅡTint CRTSocket BL ACK BL AdjustTest point Ad justment part Description Remote Secam Control unitPosition Deflection Circuit AdjustmentTOP VSM Preset SettingVER. Scurve ScurvePurity / Convergence Adjustment Purity Adjustment# P/C Magnets Dynamic Convergence Adjustment Static Convergence AdjustmentReplacement of Chip Component Replacement StepsSoldering Iron No.52026