CDX-GT130/GT180/GT230/GT280/GT280S/GT282S
3
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 viscous (sticky, less prone to fl ow)
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.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specifi ed herein may result in hazardous radia-
tion exposure.
If the optical pick-up block is defective, please replace the whole
optical pick-up block.
Never turn the semi-fi xed resistor located at the side of optical
pick-up block.
optical pick-up
semi-fixed resistor
1.
SERVICING NOTES
.............................................. 4
2. GENERAL
Location of Controls ....................................................... 5
Connections
....................................................................
6
3. DISASSEMBLY
3-1. Sub Panel Assy ............................................................... 9
3-2. CD Mechanism Block ..................................................... 9
3-3. Main Board ..................................................................... 10
3-4. Servo
Board
.................................................................... 10
3-5. Chassis
(T)
Sub
Assy
...................................................... 11
3-6. Roller Arm Assy .............................................................. 11
3-7. Chassis
(OP)
Assy
........................................................... 12
3-8. Chucking
Arm
Sub
Assy
................................................. 12
3-9. Sled
Motor
Assy
.............................................................. 13
3-10. Optical Pick-up Section .................................................. 14
3-11. Optical Pick-up ............................................................... 14
4. DIAGRAMS
4-1. Block Diagram –Main Section– ..................................... 15
4-2. Block Diagram –Display Section– ................................. 16
4-3. Printed Wiring Board –Main Section– ............................ 17
4-4. Schematic Diagram –Main Section (1/3)– ...................... 18
4-5. Schematic Diagram –Main Section (2/3)– ...................... 19
4-6. Schematic Diagram –Main Section (3/3)– ...................... 20
4-7. Printed Wiring Boards –Key Section– ............................ 21
4-8. Schematic Diagram –Key Section– ................................ 22
5. EXPLODED
VIEWS
5-1. Main
Section
................................................................... 28
5-2. Front Panel Section ......................................................... 29
5-3. CD Mechanism Section (MG-101L-188//C) .................. 30
6.
ELECTRICAL PARTS LIST
.............................. 31
TABLE OF CONTENTS
CDX-GT180/GT280/GT280S/GT282S:
This compact disc player is classifi ed as a CLASS 1 LASER
product. The CLASS 1 LASER PRODUCT label is located on the
exterior.
This label is located on the bottom of the chassis.
