AV-27D502
No. 51797C
11
a
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.
a
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.
a
REPLACEMENT STEPS
1. How to remove Chip parts
Resistors, capacitors, etc.
(1) As shown in the figure, push the part with tweezers and alter-
nately 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.
(2) As shown in the figure, push the part with tweezers and alter-
nately melt the solder at each lead. Shift and remove the chip
part.
Note : After removing the part, remove remaining solder from the
pattern.
REPLACEMENT OF CHIP COMPONENT
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 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.
(4) Then solder leads
B
and
C
.
SOLDER
SOLDER
A
B
C
A
B
C
Содержание AV 27D502
Страница 62: ...AV 27D502 AV 27D502 No 51797 No 51797 TOP FRONT AV SELECTOR PWB PATTERN 2 20 2 19 ...
Страница 63: ...AV 27D502 AV 27D502 No 51797 No 51797 CRT SOCKET PIP TOP FRONT TOP CRT SOCKET AND PIP PWB PATTERNS 2 21 2 22 ...
Страница 84: ...AV 27D502 No 51797 43 ...
Страница 130: ...Troubleshooting 46 ...
Страница 135: ...Specifications 51 Specifications subject to change without notice ...