Service Precautions; Notes On Soldering; Notes On Flash Rom; Notes On Panel Cpu - Pioneer CDJ-2000 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 ºC.
Therefore, for lead-free soldering, the tip temperature of a soldering iron must be set to around 373 ºC 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 FLASH ROM

NEVER replace the FLASH ROM (IC114) on the MAIN Assy during servicing.
If the FLASH ROM is assumed to be defective, replace the whole MAIN Assy.
This FLASH ROM contains data that can only be written in at the factory.
An IEEE 802.3-based MAC address specific to this unit has been written.

1.3 NOTES ON PANEL CPU

After the PANEL CPU (IC8003) is replaced, update its program.
The built-in PANEL CPU contains a FLASH ROM and will not operate without a program.
For updating, proceed as follows:
1. Insert the USB flash memory device that contains the program.
2. While holding the USB STOP key pressed, turn on the unit.
Hold the USB STOP key pressed until the "Pioneer" logo disappears.
3. Updating starts.
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