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D-NF400/NF401
Notes on chip component replacement
-Never reuse a disconnected chip component.
- Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
Flexible Circuit Board Repairing
-K eep the temperature of the soldering iron around 270 ΛC dur-
ing 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. TABLE OF CONTENTS
1. SERVICING NOTES
............................................... 4
2. GENERAL ................................................................... 6
3. DISASSEMBLY
3-1. Disassembly Flow........................................................... 7
3-2. Cabinet (Low er) Section................................................. 7
3-3. Optical Pick-up Assy (CDM-3325ER2) ......................... 8
3-4. MAIN Board ................................................................... 8
3-5. Liquid Crystal Display Panel (LCD2001), SWITCH Board ............................................................... 9
4. TEST MODE ............................................................... 10
5. ELECTIRICAL CHECK .......................................... 11
6. DIAGRAMS
6-1. Block Diagram - MAIN Section -................................ 12
6-2. Block Diagram - TUNER Section -............................. 13
6-3. Note for Printed Wiring Boards and Schematic Diagrams ....................................................... 14
6-4. Schematic Diagram - MAIN Board (1/7)..................... 15
6-5. Schematic Diagram - MAIN Board (2/7)..................... 16
6-6. Schematic Diagram - MAIN Board (3/7)..................... 17
6-7. Schematic Diagram - MAIN Board (4/7)..................... 18
6-8. Schematic Diagram - MAIN Board (5/7)..................... 19
6-9. Schematic Diagram - MAIN Board (6/7)..................... 20
6-10. Schematic Diagram - MAIN Board (7/7)..................... 21
6-11. Printed Wiring Board - MAIN Board (Component Side) -.............................. 22
6-12. Printed Wiring Board - MAIN Board (Conductor Side) -................................ 23
6-13. Printed Wiring Board - SWITCH Board -................... 24
6-14. Schematic Diagram - SWITCH Board -...................... 25
7. EXPLODED VIEWS
7-1. Cabinet (Inner) Section................................................... 36
7-2. Cabinet (Upper) Section................................................. 37
7-3. Cabinet (Low er) Section................................................. 38
7-4. Optical Pick-up Section (CDM-3325ER2)..................... 39
8. ELECTRICAL PARTS LIST ............................... 40 CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous ra-
diation exposure.
On AC power adaptor
-
Use only the AC power adaptor supplied.
If your CD player is not supplied with the
one, use the AC-E45HG AC power
adaptor. Do not use any other AC power
adaptor. It may cause a malfunction.
Polarity of the plug
This appliance is classified as a CLASS 1 LASER product.
The CLASS 1 LASER PRODUCT MARKING is located on
the rear exterior.
About CD-Rs/RWs
This CD player can play CD-Rs/RWs recorded in the ATRAC3plus/
ATRAC3, MP3 or CDDA*format, but playback capability may
va ry depending on the quality of the disc and the conditionof the
recording device.
*CDDA is the abbreviation for Compact Disc Digital Audio. It is
a recording standard used for the AudioCDs.
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 ΛC 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 ΛC.
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 oc-
cur 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.
