TM200
1ADJUSTMENTS, PERFORMANCE CHECK, AND FIRMWARE UPGRADE
2 – 31
CONFIDENTIAL
3. NO VOICE IS HEARD FROM THE EARPIECE.
Phone
Is the signal sent to the contact terminal of the earpiece?
The built-in earpiece is defective, or in a poor contact with
TP734 or TP735.
Is the signal sent to CN103 pins 17 and 18?
The camera relay FPC, CN103, or CN701 is defective. Or the
camera is in a poor contact with CN103 and CN701.
Is the signal sent to vsGNDs at both ends of C132?
L107, L108, C115, and C120 are defective.
Is 2.7 or more voltage applied to R192 (IC106 pin 89 side)?
R192 is defective. (Headset mode is set.)
Is approx. 1.2 V applied to IC103 pins 59 and 63?
IC103 is defective.
IC103 or IC106 is defective.
Hands free kit (monaural headset)
Replace the hands free kit. Is the signal sent ?
Hands free kit is defective.
Is the signal sent to JK101 pin 3?
Jack JK101 is defective, or the jack plug is in a poor contact
with hands free kit.
Is the signal sent to TP121?
L103 is defective.
Is the signal sent to the positive pole of C107?
C107, C103, and C106 are defective.
Is the signal sent to IC103 pin 60?
R124 is defective.
Is the voltage 0 V on R192 (IC106 pin 89 side) ?
Jack JK 101 is defective, or the jack plug is in a poor contact
with hands free kit. (Handset mode is set.)
Is approx. 1.2 V applied to IC103 pin 60?
IC103 is defective.
IC103 or IC106 is defective.
YES
NO
YES
NO
YES
NO
NO
YES
NO
YES
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
NO
YES
NO
YES
Hands free kit (stereo headset) - Option
The headset cannot be used. (It works as a monaural headset.)
Is the stereo headset the one specified by Sharp?
Is the plug a 6 pole type with a ring?
Is R-ch only the channel that does not send signals?
Replace the hands free kit. Is the signal sent ?
Hands free kit is defective.
Is the signal sent to JK101 pin 3?
Jack JK101 is defective, or the jack plug is in a poor contact
with hands free kit.
Is the signal sent to TP121?
L103 is defective.
Is the signal sent to the positive pole of C107?
C107, C103, and C106 are defective.
Is the signal sent to IC103 pin 60?
R124 is defective.
Is the voltage 0 V on R192 (IC106 pin 89 side)?
Jack JK 101 is defective, or the jack plug is in a poor contact
with hands free kit. (Handset mode is set.)
Is approx. 1.2 V applied to IC103 pin 60?
IC103 is defective.
IC103 or IC106 is defective.
NO
NO
YES
YES
YES
B
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
NO
YES
NO
YES
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