Service manual

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 YES