Http://Www.xiaoyu163.Com 6 7; Service Precautions; Notes On Soldering; Caution - Pioneer XV-DV370 Service Manual

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1. SERVICE PRECAUTIONS

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1.1 NOTES ON SOLDERING

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• For environmental protection, lead-free solder is used on the printed circuit boards mounted in this unit.
Be sure to use lead-free solder and a soldering iron that can meet specifications for use with lead-free solders for repairs
accompanied by reworking of soldering.
• Compared with conventional eutectic solders, lead-free solders have higher melting points, by approximately 40 °C.
Therefore, for lead-free soldering, the tip temperature of a soldering iron must be set to around 373 °C in general, although
the temperature depends on the heat capacity of the PC board on which reworking is required and the weight of the tip of
the soldering iron.
Do NOT use a soldering iron whose tip temperature cannot be controlled.
Compared with eutectic solders, lead-free solders have higher bond strengths but slower wetting times and higher melting
temperatures (hard to melt/easy to harden).
The following lead-free solders are available as service parts:
• Parts numbers of lead-free solder:
GYP1006 1.0 in dia.
GYP1007 0.6 in dia.
GYP1008 0.3 in dia.

1.2 CAUTION

NOTES ON BTL DRIVE
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L 13942296513
As a signal to drive the BTL is output from the negative speaker terminal, DO NOT short-circuit between the
negative speaker terminal and ground, such as the chassis.
Do not short-circuit between the plus speaker terminal and ground, such as the chassis, too.
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Do not short-circuit
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FNORT E C T N R E
IN OUT
CONTROL
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SUB
R L
SURROUND WOOFER
AUDIO
SPEAKERS (4 Ω - 6 Ω)
Negative Speaker Terminal
Ground (Chassis)
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