DBTEL DB-6568, Руководство по обслуживанию

Страница: 65 / 73

DBTEL Incorporated
DB-6568 Service Manual Level 1 ~ 3
2003.11.13
DBTEL Copyright Reserved
Page 65 of 66
If take actions as above but still cannot improve defect. It may be caused by PCB, this
handset should be transfer to higher service level
。
SYMPTOM 7
：
Recipient does not hear caller or volume is too low
Command: #*80#
à
Select Change audio loop test item
LEVEL PROBABLE CAUSE VERIFICATION AND REMEDY
2
Microphone and Microphone
sponge are not in proper position
Microphone might mount not properly on
front and rear housing, check the
microphone and sponge and make sure that
it is installed into position.
Refit it into right position.
2
Microphone defect
Replace the defective microphone with a new
or working one.
If take actions as above but still cannot improve defect. It may be caused by PCB, this
handset should be transfer to higher service level
。
SYMPTOM 8
Cannot charge power
LEVEL PROBABLE CAUSE VERIFICATION AND REMEDY
1
Battery defect
he battery might have worn out.
Install a working battery and start charging.
Make sure that it functions well.
Replace the defective battery with a new or
working battery.
1
Charger defect
The charger might be defected.
Connect a working charger to the charger
port and start charging. Make sure that it
operates well.
Replace the defective charger with a new or
working one.
If take actions as above but still cannot improve defect. It may be caused by PCB, this
handset should be transfer to higher service level
。
SYMPTOM 9
：
Vibration malfunction when calling or noisy
Command
：
#*80#
à
Select VIBRATOR test item