Notes On Repair Parts - Sony DSR-300 Service Manual

2-28. NOTES ON REPAIR PARTS

2-28-1. Replacement Procedure of Chip Parts
Tools Required
. Soldering iron: 20 W. If possible, use a soldering iron
tip heat-controller set to 270 ± 10 dC.
. Braided wire:
Solder Taul or equivalent
Sony Part No. 7-641-300-81
. Solder: 0.6 mm diameter is recommended.
. Tweezers
Soldering Conditions
. Soldering iron temperature: 270 ± 10 dC
. Soldering time: Less than 2 seconds per pin
Capacitor Resistor
Terminals
Terminals
Replacement of Resistor and Capacitor
1. Place the soldering-iron tip onto the chip part and heat
it up until the solder is melted. When the solder is
melted, slide the chip part aside.
2. Make sure that there is pattern peeling, damage and/or
bridge around the desoldering positions.
3. After removing the chip part, presolder the area, in
which the new chip part is to be placed, with a thin
layer of solder.
4. Place the new chip part at the desired position and
solder both ends.
Note: Do not use chips parts that have been removed
once.
2-88
Replacement of Transistors and Diodes
1. Cut the terminals of the chip part with nippers.
2. Remove the cut leads with soldering iron.
3, Make sure that there is no pattern peeling, damage and/
4. After removing the chip part, presolder the area, in
5. Place the new chip part at the desired position and
Transistor, Diode
Terminal
Terminals
Replacement of ICs
1. Using the braided wire, remove the solder around the
2. While heating up the pins, remove the pins one by one
3. Make sure that there is no pattern peeling, damage and/
4. After removing the chip part, presolder the area, in
5. Place the new chip part at the desired position and
or bridge around the desoldering positions.
which the new chip part is to be placed, with a thin
layer of solder.
solder the terminals.
Nippers
Transistor
pins of the IC-chip to be removed.
using tweezers and equivalent.
or bridge around the desoldering parts.
which the new chip part is to be placed, with a thin
layer of solder.
solder the terminals.
DSR-300/P(E)/V1