JVC AV-36D503/Y Service Manual page 34

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AV-36D503
AV-36D303
AV-36D203
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
(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.
34
SOLD E R
No.51948
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.
A
(3) First s older lead
as indicated in the figure.
A
B
(4) Then solder leads
and
A
B
C
C
.
B
C

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