Replacement Of Chip Component - JVC AV-T2122 Service Manual

AV-T2122

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
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 resistors, etc.
(1) Apply extra solder to each lead.
SOLDER
(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.
28
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
% 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
(3) First solder lead
SOLDER
(4) Then solder leads
No.51866
solder. Then heat and melt the solder at both ends of the
chip part.
solder.
A
as indicated in the figure.
A
B C
and .
A
B
C
B
C