Sharp HR-MB3 Service Manual

CHAPTER 1. GENERAL DESCRIPTION
[1] Specifications ......................................... . ....... 1-1
[2] Names of parts....................................... . ....... 1-1
CHAPTER 2. ADJUSTMENTS
[1] TEST Mode ............................................ . ....... 2-1
[2] Error History Display .............................. . ....... 2-2
[3] Error Code List ....................................... . ....... 2-3
[4] Updating the firmware ............................ . ....... 2-4
[5] Replacing the HDD unit.......................... . ....... 2-4
[6] Downloading the latest firmware ............ . ....... 2-4
CHAPTER 3. MECHANISM BLOCKS
[1] Caution on diassembly........................... . ....... 3-1
CHAPTER 4. DIAGRAMS
[1] Block diagram ........................................ . ....... 4-1
CHAPTER 5. CIRCUIT DESCRIPTION
[1] Notes on schematic diagram.................. . ....... 5-1
[2] Types of transistor.................................. . ....... 5-1
[3] Waveforms of circuit............................... . ....... 5-2
[4] Voltage ................................................... . ....... 5-3
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
CONTENTS
SHARP CORPORATION
PORTABLE JUKEBOX
HR-MB3(S)
MODEL
CHAPTER 6. CIRCUIT SCHEMATICS AND PARTS
LAYOUT
[1] Schematic diagram........................................6-1
[2] Wiring side of PWB......................................6-13
CHAPTER 7. FLOWCHART
[1] Troubleshooting .............................................7-1
CHAPTER 8. OTHER
[1] Function table of IC .......................................8-1
Parts Guide
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
HR-MB3
No. XXXXXXXXXXXXX