Mp3 Cannot Be Played - Sharp TQ-GX30E Service Manual

GX30

8. MP3 cannot be played.

Speaker
Is Ringer Volume set to "Silent"?
Is output of the video and voice recorder normal?
Insert an SD card with MP3 files recorded on a normal unit.
Do they play?
Is the SD card recognized?
Is the signal sent to IC103 pin 60?
IC103 is defective.
Hands free kit (headset)
(The following procedure applies to both monaural and stereo headsets.)
Is sound normally produced from Speaker?
Replace the hands free kit. Is sound produced?
Go to "Hands free kit (monaural headset)" in the section "No
voice is heard from the earpiece." (see page 2-52)
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NO
YES
NO
YES
NO
YES
NO
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Not defective.
YES
Cancel "Silent". Is sound produced?
Go to the section "Video/Voice Recorder playback is impossi-
ble." (see page 2-57)
NO
Are keypad tones and ring tones normal?
Go to the section "Speaker does not work." (see page 2-55)
Not defective.
YES
Or SD card is defective.
NO
Go to the section "SD (Memory) card is not recognized." (see
page 2-65)
Parts between IC103 pin 60 and IC105 pins 14 & 13 are
YES
defective or soldered improperly.
NO
Go to the section regarding Speaker.
YES
Hands free kit is defective.
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YES
NO
YES
NO