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2-1.
SECTION 2
SERVICE OVERVIEW
NOTES ON SPARE PARTS
2-1-1.
Notes on Spare Parts
Standardization of Parts
Spare parts supplies form Sony Parts Center may not be
always identical with the parts which actually in use due
to "accommodating
the
improved
parts
and/or
engineering changes" or "standardization of genuine
parts".
This manual's exploded views and electrical spare parts
list are indicating the part numbers of "the standardized
genuine parts at present."
Stock of Parts
Parts marked with "o" in SP (Supply code) column of the
spare parts list are not normally required for routine
service work. Orders for parts marked with "o" will be
processed, but allow for additional delivery time.
Units for Capacitors, Inductors and Resistors
The following units are assumed in schematic diagrams,
electrical parts list and exploded views unless otherwise
specified:
Capacitors
: uF in schematic diagram
: F of pF in schematic diagram
Resistors
: Q
2-1-2.
Replacement Procedure for Chip Parts
Required Tools
Soldering iron : 20 W
If possible, use a soldering iron tip heat-
controller at 270 + 10°C.
Braided wire
: SOLDER TAUL or equivalent
Sony part No. 7-641-300-81
Solder
: 0.6 mm dia. is recommended.
Tweezers
Soldering Conditions
Soldering iron temperature : 270 + 10°C.
Soldering time: less than two seconds per a pin.
CAPACITOR
RESISTOR
TRANSISTOR
DIODE
<S"
Terminal
Terminal
Terminal
e Resistor and Capacitor Replacement
1.
Place the soldering iron tip onto the chin 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 no pattern peeling, damage and /
or bridges 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 new chip part in the desired position and solder
both ends.
Once a chip part has been removed never use it again.
2-1
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