Sharp QT-MP3W Service Manual

CHAPTER 1. GENERAL DESCRIPTION
[1] Precaution For Using Lead-Free Solder ....... 1-1
[2] Safety Precaution For Service Manual.......... 1-2
[3] Voltage Selection .......................................... 1-2
[4] AC Power Supply Cord and
AC Plug Adaptor ........................................... 1-2
[5] Specifications ................................................ 1-3
[6] Names Of Parts............................................. 1-4
CHAPTER 2. ADJUSTMENTS
[1] Tuner Section ................................................ 2-1
[2] Mechanism Section....................................... 2-2
CHAPTER 3. BLOCK DIAGRAM
[1] Block Diagram............................................... 3-1
CHAPTER 4. CIRCUIT DESCRIPTION
[1] Waveforms Of CD Servo Circuit ....................4-1
[2] IC Voltage ......................................................4-3
Parts marked with " " are important for maintaining the safety of the set. Be sure to replace these parts with specified ones
!
for maintaining the safety and performance of the set.
SERVICE MANUAL
PORTABLE CD STEREO SYSTEM
MODEL
In the Interests of user-safety the set should be restored to
its original condition and only parts identical to those
specified be used.
CONTENTS
CHAPTER 5. CIRCUIT SCHEMATICS AND PARTS
LAYOUT
[1] Notes On Schematic Diagram .......................5-1
[2] Types Of Transistor And LED ........................5-1
[3] Schematic Diagram .......................................5-2
[4] Wiring Side Of PWB ....................................5-12
CHAPTER 6. FLOWCHART
[1] Troubleshooting .............................................6-1
CHAPTER 7. OTHERS
[1] Function Table Of IC ......................................7-1
[2] LCD Display.................................................7-10
PARTS GUIDE
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
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QT-MP3W
No. S9632QTMP3W//
QT-MP3W