Sharp GX30 Service Manual - Page 56

[3] Troubleshooting, 1. Power is not turned on. - mp3

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GX30 [3] Troubleshooting CONFIDENTIAL 1. Power is not turned on. 2. Voice transmission/recording is impossible. 3. No voice is heard from the earpiece. 4. Battery does not charge. 5. Vibrator does not work. 6. Clock Settings are reset. 7. Speaker does not work. 8. MP3 cannot be played. 9. Video/Voice Recorder playback is impossible. 10. Back Light does not turn on. 11. Out of range and incoming/outgoing calls are impossible. 12. The display does not appear on Main Display. 13. The display does not appear on External Display (in 65K color mode). 14. Pictures cannot be taken. 15. Flash light does not work. 16. SIM card is not recognized. 17. SD (Memory) card is not recognized. 18. IrDA (Infrared) communication is not possible. 19. Bluetooth communication is impossible. 20. USB connection is impossible. See page 2-48 See page 2-50 See page 2-52 See page 2-54 See page 2-54 See page 2-55 See page 2-55 See page 2-56 See page 2-57 See page 2-58 See page 2-59 See page 2-60 See page 2-61 See page 2-62 See page 2-63 See page 2-64 See page 2-65 See page 2-66 See page 2-67 See page 2-68 1. Power is not turned on. Connect a battery of 4.0 V or more. Execute File System Initialization of Downloader in SPST without loading a file. Does File System Initialize start properly? NO A (To page 2-49) YES Is the user area (file system) initialized by Flash Loader? YES NO 5-level stack memory (IC101) and IC106 are defective. Does normal mode start? NO YES 5-level stack memory (IC101) data is corrupted. Is it possible to rewrite the firmware? YES NO 5-level stack memory (IC101) and IC106 are defective. Does normal mode start after restart? NO YES 5-level stack memory (IC101) and IC106 are defective. Program code of 5-level stack memory (IC101) is garbled. 2 - 48

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GX30
2 – 48
CONFIDENTIAL
[3] Troubleshooting
1. Power is not turned on.
1.
Power is not turned on.
See page 2-48
2.
Voice transmission/recording is impossible.
See page 2-50
3.
No voice is heard from the earpiece.
See page 2-52
4.
Battery does not charge.
See page 2-54
5.
Vibrator does not work.
See page 2-54
6.
Clock Settings are reset.
See page 2-55
7.
Speaker does not work.
See page 2-55
8.
MP3 cannot be played.
See page 2-56
9.
Video/Voice Recorder playback is impossible.
See page 2-57
10.
Back Light does not turn on.
See page 2-58
11.
Out of range and incoming/outgoing calls are impossible.
See page 2-59
12.
The display does not appear on Main Display.
See page 2-60
13.
The display does not appear on External Display (in 65K color mode).
See page 2-61
14.
Pictures cannot be taken.
See page 2-62
15.
Flash light does not work.
See page 2-63
16.
SIM card is not recognized.
See page 2-64
17.
SD (Memory) card is not recognized.
See page 2-65
18.
IrDA (Infrared) communication is not possible.
See page 2-66
19.
Bluetooth communication is impossible.
See page 2-67
20.
USB connection is impossible.
See page 2-68
Connect a battery of 4.0 V or more.
Execute File System Initialization of Downloader in SPST
without loading a file.
Does File System Initialize start properly?
Is the user area (file system) initialized by Flash Loader?
5-level stack memory (IC101)
and IC106 are defective.
Does normal mode start?
5-level stack memory (IC101)
data is corrupted.
Is it possible to rewrite the firmware?
5-level stack memory (IC101)
and IC106 are defective.
Does normal mode start after restart?
5-level stack memory (IC101)
and IC106 are defective.
Program code of 5-level stack
memory (IC101) is garbled.
(To page 2-49)
YES
NO
A
YES
NO
NO
YES
YES
NO
NO
YES