Sharp GX20 Service Manual

CHAPTER 1. GENERAL DESCRIPTION
[1] Specifications ................................................ 1-1
[2] Names of parts .............................................. 1-2
[3] Operation manual.......................................... 1-3
CHAPTER 2. ADJUSTMENTS
[1] Adjustments
SHARP Program Support Tool (SPST)........ 2-1
[2] SHARP RF Test tool manual ....................... 2-30
[3] Adjustment procedures
after replacement of the parts .................. 2-36
[4] Test points ................................................... 2-39
[5] Troubleshooting........................................... 2-42
[6] Specification for function test ...................... 2-64
CHAPTER 3. DISASSEMBLY AND REASSEMBLY
[1] Servicing Concerns ....................................... 3-1
[2] Disassembly and reassembly ....................... 3-5
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.
SHARP CORPORATION
All manuals and user guides at all-guides.com
CONFIDENTIAL
SERVICE MANUAL
(INTERNAL MODEL NAME:
TQ-GX20E/G/R/T/S/H/EP/PP/W/B/D/A/Z/Q/L/F/C)
CONTENTS
DIGITAL MOBILE PHONE
MODEL
E : For U.K.
R : For Ireland
S : For Spain
EP: For U.K. (Prepaid)
W : For Sweden
D : For Greece
Z : For New Zealand
L : For Malta
C : For Switzerland
• 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.
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 ..................... . ........5-6
CHAPTER 6. OTHERS
[1] Function table of IC................................ . ........6-1
[2] Function table of Camera ...................... . ......6-27
Parts Guide
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
GX20
No. S9311TQGX20/B
GX20
G : For Germany
T : For Italy
H : For Netherlands
PP: For Portugal (Prepaid)
B : For Hungary
A : For Australia
Q : For Egypt
F : For France