JVC AV-1438, AV-14FMT3, AV-1435EE Replacement of Chip Component, Soldering Iron, Replacement Steps

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AV-14F3/AV-1435

AV-1435EE/AV-1435TEE

AV-14FMT3/AV-1438

AV-14FMG3/AV- 14FMG 3B

REPLACEMENT OF CHIP COMPONENT

!CAUTIONS

1.Avoid heating for more than 3 seconds.

2.Do not rub the electrodes and the resist parts of the pattern.

3.When removing a chip part, melt the solder adequately.

4.Do not reuse a chip part after removing it.

!SOLDERING IRON

1.Use a high insulation soldering iron with a thin pointed end of it.

2.A 30w soldering iron is recommended for easily removing parts.

!REPLACEMENT STEPS

1.How to remove Chip parts $ Resistors, capacitors, etc

(1)As shown in the figure, push the part with tweezers and alternately melt the solder at each end.

(2) Shift with tweezers and remove the chip part.

2. How to install Chip parts

$Resistors, capacitors, etc

(1)Apply solder to the pattern as indicated in the figure.

(2)Grasp the chip part with tweezers and place it on the solder. Then heat and melt the solder at both ends of the chip part.

$Transistors, diodes, variable resistors, etc

(1)Apply extra solder to each lead.

SOLD E R

SOLD E R

(2)As shown in the figure, push the part with tweezers and alternately melt the solder at each lead. Shift and remove the chip part.

Note : After removing the part, remove remaining solder from the pattern.

$Transistors, diodes, variable resistors, etc

(1)Apply solder to the pattern as indicated in the figure.

(2)Grasp the chip part with tweezers and place it on the solder.

(3)First solder lead A as indicated in the figure.

A

B

C

(4) Then solder leads B and C.

A

B

C

No.52026

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Contents Contents Ents SpecificationsAV-14F3 / AV-1435 AV-14FMT3 / AV-1438 Safety Precautions Features Rear Terminal FunctionsRemote Control Unit Part Name Main Difference ListModel 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 SecamProcedures Replacement of IC301 if V/C DecoderLocations 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 ⅡCRT TintSocket BL ACK BL AdjustTest point Ad justment part Description Remote Secam Control unitPosition Deflection Circuit AdjustmentTOP VSM Preset SettingVER. Scurve ScurvePurity Adjustment Purity / Convergence Adjustment# P/C Magnets Dynamic Convergence Adjustment Static Convergence AdjustmentReplacement Steps Replacement of Chip ComponentSoldering Iron No.52026