Replacement Of Chip Component - JVC AV-14F3 Service Manual

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 c hip part, melt the s older adequately.
4. Do not reuse a chip part after removing it.
! SOLDERING IRON
1. Use a high ins ulation s oldering iron with a thin pointed end of it.
2. A 30w s oldering iron is rec ommended for easily removing parts.
! REPLACEMENT STEPS
How to remove Chip parts
1.
$ $ $ $ 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.
$ $ $ $ Transistors, diodes, variable r esistor s, 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.
2. How to install Chip parts
$ $ $ $ Resistors, capacitors, etc
(1) Apply solder to the pattern as indic ated in the figure.
(2) Grasp the chip part with tweezers and plac e it on the s older.
Then heat and melt the solder at both ends of the chip part.
$ $ $ $ Transistors, diodes, variable r esistor s, etc
(1) Apply solder to the pattern as indic ated in the figure.
(2) Grasp the chip part with tweezers and place it on the solder.
(3) First s older lead
A
C
(4) Then solder leads
A
C
No.52026
AV-14F3/AV-1435
AV-1435EE/AV-1435TEE
AV-14FMT3/AV-1438
AV-14FMG3/AV- 14FMG 3B
A
as indicated in the figure.
B
B C
and .
B
31