2
ICD-P320
TABLE OF CONTENTS
1. GENERAL
...................................................................... 3
2. DISASSEMBLY
2-1. Case (Front) Assy ............................................................... 4
2-2. MAIN Board....................................................................... 5
2-3. USB Board ......................................................................... 5
3. TEST MODE .................................................................. 6
4. DIAGRAMS
4-1. Block Diagram ................................................................... 9
4-2. Printed Wiring Board – MAIN Section – ........................ 11
4-3. Schematic Diagram – MAIN Section (1/2) – .................. 12
4-4. Schematic Diagram – MAIN Section (2/2) – .................. 13
4-5. Printed Wiring Board – USB Section – .......................... 14
4-6. Schematic Diagram – USB Section –.............................. 15
5. EXPLODED VIEWS
5-1. Case (Front) Section ......................................................... 19
5-2. Case (Rear) Section .......................................................... 20
6. ELECTRICAL PARTS LIST ................................... 21
Flexible Circuit Board Repairing
•Keep the temperature of the soldering iron around 270 °C
during repairing.
• Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
• Be careful not to apply force on the conductor when soldering
or unsoldering.
Notes on chip component replacement
•Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be
damaged by heat.
UNLEADED SOLDER
Boards requiring use of unleaded solder are printed with the 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
Unleaded solder has the following characteristics.
• Unleaded solder melts at a temperature about 40 °C higher
than ordinary solder.
Ordinary soldering irons can be used but the iron tip has to be
applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set to
about 350 °C.
Caution: The printed pattern (copper foil) may peel away if
the heated tip is applied for too long, so be careful!
• Strong viscosity
Unleaded solder is more viscou-s (sticky, less prone to flow)
than ordinary solder so use caution not to let solder bridges
occur such as on IC pins, etc.
• Usable with ordinary solder
It is best to use only unleaded solder but unleaded solder may
also be added to ordinary solder. Operating instructiondd