Sharp 902SH, Service Manual

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CONFIDENTIAL
SERVICING CONCERNS
CHAPTER 1. GENERAL DESCRIPTION
[1] Specifications ................................................. 1-1
[2] Names of parts ............................................... 1-3
[3] List of Menu Functions ................................... 1-5
[4] Optional Accessories ..................................... 1-5
CHAPTER 2. ADJUSTMENTS,
PERFORMANCE CHECK, AND
FIRMWARE UPGRADE
[1] SHARP Programme Support Tool (SPST)........ 2-1
[2] Test points .................................................... 2-18
[3] Troubleshooting............................................ 2-25
CHAPTER 3. DISASSEMBLY AND REASSEMBLY
[1] Servicing Concerns ........................................ 3-1
[2] Disassembly and reassembly ........................ 3-3
[3] Precautions for installing the thin coaxial........ 3-6
CHAPTER 4. DIAGRAMS
[1] Block diagram ................................................4-1
CHAPTER 5. SCHEMATIC DIAGRAM AND
WIRING SIDE OF P.W.BOARD
[1] Notes on schematic diagram .........................5-1
[2] Types of transistor and LED ..........................5-1
[3] Waveforms of circuit ......................................5-2
[4] Schematic diagram/
Wiring side of P.W.Board .............................5-7
CHAPTER 6. OTHERS
[1] Function table of IC........................................6-1
[2] Function table of Display .............................6-33
Parts Guide
INTERNAL
MODEL
NAME
SELEC-
TION
CODE
DESTINATION INTERNAL
MODEL
NAME
SELEC-
TION
CODE
DESTINATION
JNJ300BW B Hungary JNJ300KW K Austria
JNJ300CW C Switzerland JNJ300PW P Portugal
JNJ300DW D Greece JNJ301PW PP Portugal (Prepaid)
JNJ300EW E U.K. JNJ300RW R Ireland
JNJ301EW EP U.K. (Prepaid) JNJ300SW S Spain
JNJ300FW F France JNJ300TW T Italy
JNJ300GW G Germany JNJ300UW U Belgium
JNJ301GW GP Germany (Prepaid) JNJ300WW W Sweden
JNJ300HW H Netherlands JNJ300ZW Z New Zealand
SERVICE MANUAL
902SH
No. S0422JNJ300/W
3G(UMTS)/GSM/GPRS PHONE
902SH
MODEL
SHARP CORPORATION
CONTENTS
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.
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
•
In the interests of user-safety the set should be restored to its
original condition and only parts identical to those specified
should be used.
•
Caution
Risk of explosion if battery is replaced by an incorrect type,
dispose of used batteries according to the instruction.