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Sharp GX30 Service Manual - Page 126

In this unit, the terminal with asterisk mark * is open terminal which is not connected to

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GX30 CONFIDENTIAL Pin No. 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 Terminal name AGND0 AGND0 AGND0 AGND0 AGND0 AGND0 AGND0 AGND0 AGND0 AGND0 AGND0 AGND0 AGND0 AGND0 AGND0 AGND0 AGND0 AGND0 AGND0 AGND0 AGND0 Input/Output Description of terminal Thermal ground for power supply Thermal ground for power supply Thermal ground for power supply Thermal ground for power supply Thermal ground for power supply Thermal ground for power supply Thermal ground for power supply Thermal ground for power supply Thermal ground for power supply Thermal ground for power supply Thermal ground for power supply Thermal ground for power supply Thermal ground for power supply Thermal ground for power supply Thermal ground for power supply Thermal ground for power supply Thermal ground for power supply Thermal ground for power supply Thermal ground for power supply Thermal ground for power supply Thermal ground for power supply In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside. 6 - 6

Section	Page
FRONT	1
SERVICING CONCERNS	2
GENERAL DESCRIPTION	3
[1] Specifications	3
[2] Names of parts	4
[3] Operation manual	5
ADJUSTMENTS, PERFORMANCE CHECK, AND FIRMWARE UPGRADE	9
[1] SHARP Program Support Tool (SPST)	9
1. System requirements	9
2. Introduction	9
3. Adjustments for GX30	12
4. Functions	13
5. Other tests	51
[2] Test points	52
[3] Troubleshooting	56
1. Power is not turned on.	56
2. Voice transmission/recording is impossible.	58
3. No voice is heard from the earpiece.	60
4. Battery does not charge.	62
5. Vibrator does not work.	62
6. Clock Settings are reset.	63
7. Speaker does not work.	63
8. MP3 cannot be played.	64
9. Video/Voice Recorder playback is impossible.	65
10. Back Light does not turn on.	66
11. Out of range and incoming/outgoing calls are impossible.	67
12. The display does not appear on Main Display.	68
13. The display does not appear on External Display (in 65K color mode).	69
14. Pictures cannot be taken.	70
15. Flash light does not work.	71
16. SIM card is not recognized.	72
17. SD (Memory) card is not recognized.	73
18. IrDA (Infrared) communication is not possible.	74
19. Bluetooth communication is impossible.	75
20. USB connection is impossible.	76
DISASSEMBLY AND REASSEMBLY	77
[1] Servicing Concerns	77
1. For disassembling	77
2. For reassembling	77
[2] Disassembly and reassembly	80
DIAGRAMS	84
[1] Block diagram	84
SCHEMATIC DIAGRAM AND WIRING SIDE OF P.W.BOARD	88
[1] Notes on schematic diagram	88
[2] Types of transistor and LED	88
[3] Waveforms of circuit	89
[4] Schematic diagram/Wiring side of P.W.Board	92
OTHERS	121
[1] Function table of IC	121
[2] Function table of Camera	147
[3] Function table of Display	148
PartsGuide	151
[1] INTEGRATED CIRCUITS	152
[2] TRANSISTORS	152
[3] DIODES	152
[4] FILTERS	153
[5] COILS	153
[6] VARIABLE RESISTORS	153
[7] VIBRATORS	153
[8] THERMISTOR	153
[9] ARRAY PARTS	153
[10] CAPACITORS	154
[11] RESISTORS	156
[12] OTHER CIRCUITRY PARTS	159
[13] CABINET PARTS	160
[14] ACCESSORIES/PACKING PARTS	163

Match case Limit results 1 per page

GX30

6 – 6

CONFIDENTIAL

In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.

128

AGND0

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