Service Precautions; Notes On Soldering; Notes On Replacing; Caution - Pioneer SC-65 Service Manual

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1. SERVICE PRECAUTIONS

1.1 NOTES ON SOLDERING

• 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 NOTES ON REPLACING

The part listed below is difficult to replace as a discrete component part.
When the part listed in the table is defective, replace whole Assy.
PCB ASSY
ASSY NAME
Part No.
DIGITAL MAIN
AWX1199
ASSY
D-AMP_S AWX1210
ASSY

1.3 CAUTION

• Discharging
Before starting the diagnosis, wait for three minutes until the electricity of the unit is discharged.
• Ground Points
Please refer to "Ground Points".
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Parts that is Difficult to Replace
Ref No. FUNCTION
IC903 HDMI RECEIVER
IC1204 DIGITAL VIDEO FORMAT
CONVERTER
IC1212 DDR2-SDRAM
IC1602 HDMI TRANSMITTER
IC1609 HDMI TRANSMITTER
IC9002 1st DSP
IC9203 LAN PHY
IC9204 MEDIA PROCESSOR
IC9510 REGULATOR
IC9520 REGULATOR
IC9521 REGULATOR
IC9522 REGULATOR
IC9524 REGULATOR
IC9602 HDMI RECEIVER
IC9702 2nd DSP
Q4101,4102
Q4201,4202
Q4301,4302
Q4401,4402
Q4501,4502
Q4601,4602
Q4701,4702
Q4801,4802
Q4901,4902
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Part No.
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FET -------------------
SC-65
7
8
A
B
C
Remarks
IC with heat-pad
BGA
BGA
IC with heat-pad
IC with heat-pad
IC with heat-pad
IC with heat-pad
D
BGA
IC with heat-pad
IC with heat-pad
IC with heat-pad
IC with heat-pad
IC with heat-pad
IC with heat-pad
IC with heat-pad
E
Land is under parts
F
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