Sharp TM150, Руководство по обслуживанию

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TM150 ADJUSTMENTS, PERFORMANCE CHECK, AND FIRMWARE UPGRADE
2 – 32
CONFIDENTIAL DRAFT
4. BATTERY DOSE NOT CHARGE.
Is the signal sent to JK101 pin 1? Jack JK101 is defective, or the jack plug is in a poor contact
with hands free kit.
Is the signal sent to TP163? L105 is defective.
Is the signal sent to the positive pole of C110? C110, C105, and V109 are defective.
Is the signal sent to IC103 pin 64? R126 is defective.
Is the voltage 0.1 V or lower on R191 (IC106 pin 100 side)? Jack JK101 is defective, or the jack plug is in a poor contact
with hands free kit. (Monaural mode is set.)
Is approx. 1.2 V applied to IC103 pin 64? IC103 is defective.
IC103 or IC106 is defective.
YES
NO
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(BACK PAGE)
B
Set a battery of 3.8 - 3.9 V and connect the charger. CN701 and CN103 are connected improperly, and IC103 is
defective.
Is the mobile light turned on red? Does the waveform periodically change between “H” and “L”
at R701?
Set a battery of 4.0 - 4.2 V. Click the “Performance check
adjustment” button on SPST. LED702 of the mobile light is defective.
* For settings and connections for SPST, refer to the “ADJUSTMENTS,
PERFORMANCE CHECK, AND FIRMWARE UPGRADE” (see page 2-1).
Click the “Temperature adjustment” button. Is the value of
“temp” normal? (Measurement tolerance: ± 5 deg.) TH701, TH101, and IC103 are defective. CN701 and CN103
are connected improperly.
Click the “Battery voltage check” button. Is the voltage 4.0 -
4.2 V? IC103 is defective.
Set a battery of 3.3 - 4.2 V and start in normal mode.
Connect the charger to the external connector. Is the voltage
applied to TP537 higher than that of battery? R535, R536, Q108, IC115, and IC103 are defective.
When the charger is inserted to the external connector, is
IC115 pin 1 at “L”? IC115 is defective.
Connect the charger to the external connector. After approx.
15 seconds, do the voltages on TP180 and TP520 increase by
more than 0.05 V? R535, R536, Q108, IC115, IC103, D103, and D105 are defec-
tive.
The battery is defective, or the battery cycle is shortened.
YES
NO
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YES