Sony CBK-HD01, Maintenance Manual

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1-55
PDW-700/V1 (E)
1-12-11. Unleaded Solder
Boards requiring use of unleaded solder are printed with a
lead free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come
printed with the lead free mark due to their particular size.)
: LEAD FREE MARK
m
.
Be sure to use the unleaded solder for the printed circuit
board printed with the lead free mark.
. The unleaded solder melts at a temperature about 40 d C
higher than the ordinary solder, therefore, it is recom-
mended to use the soldering iron having a temperature
regulator.
. The ordinary soldering iron can be used but the iron tip
has to be applied to the solder joint for a slightly longer
time. The printed pattern (copper foil) may peel away if
the heated tip is applied for too long, so be careful.
1-12-10. Notes on Repair Parts
1. Safety Related Components Warning
w
Components marked
!
are critical to safe operation.
Therefore, specified parts should be used in the case of
replacement.
2. Standardization of Parts
Some repair parts supplied by Sony differ from those
used for the unit. These are because of parts common-
ality and improvement.
Parts list has the present standardized repair parts.
3. Stock of Parts
Parts marked with “o” at SP (Supply Code) column of
the spare parts list may not be stocked. Therefore, the
delivery date will be delayed.
4. Harness
Harnesses with no part number are not registered as
spare parts.
1-12-8. Precautions for Use of Condensation
Sensor
Due to the foreign substances adhering to the condensation
sensor chip (see figure below), the sensor fails to measure
the correct value of residence to humidity. This prevents
the unit from functioning properly. If any foreign sub-
stance gets adhered to the chip, replace the condensation
sensor with a new one.
m
.
Do not touch the chip with bare hands.
.
Do not clean the chip with alcohol or other similar
agents.
Connector
1 pin
Leads
Condensation
sensor chip
Bracket
Solders
1-12-9. Precautions for the Battery Connector
The battery connector in this unit is consumable parts.
Replace every about 5 years.
If the terminal of connector is deformed or bends due to
vibrations or shock, or if the surface of the terminal
corrodes due to long-term outside use or other similar use,
the unit may malfunction.
Replace the battery connector immediately if the terminal
is deformed or bends, or if the surface color changes.
(Refer to Section 1-7-10.)