Panasonic KX-TS2368CAW Service Manual ▷ View online
13
KX-TS2368CAW
5 Location of Controls and Components
Refer to the Operating Instructions.
Note:
You can download and refer to the Operating Instructions (Instruction book) on TSN Server.
6 Installation Instructions
Refer to the Operating Instructions.
Note:
You can download and refer to the Operating Instructions (Instruction book) on TSN Server.
7 Operating Instructions
Refer to the Operating Instructions.
Note:
You can download and refer to the Operating Instructions (Instruction book) on TSN Server.
7.1.
For Service Hint
7.1.1.
To Release the Establishment of Dial Lock
If the current password is forgotten, follow the below procedure, you will be able to establish new password
Press MUTE
Enter “10349276”
Enter “10349276”
Press
14
KX-TS2368CAW
8 Troubleshooting Guide
8.1.
Service Hints
8.2.
Pulse Dialing Problems
SYMPTOM
CURE
Dead
Check IC801, X801, X802
Can't hear the voice from handset.
Check Q109, Q405, Q406.
No voice transmit.
Check Q421, Q424, Q108.
Can't tone dial.
Check IC801, R445, R444, R443, C436.
Can't pulse dial
Check Q101, Q103, Q104.
Can't auto redial
Check IC201, Q201.
No rings.
Check D1, IC1 and SW1 (Line1), D21, IC22 and SW21 (Line 2).
can't speak with the speakerphone.
Check IC601.
Can't hold.
Check SW510, Q501, Q551.
Can't speak with the handset.
Check handset jack
Can't speak with the headset.
Check headset jack
Can't change the volume for speakerphone.
Check IC801, IC601
Can't change the volume for handset.
Check IC801, Q405
No volume handset or speakerphone.
Check IC801, Q108, Q401.
YES
YES
YES
YES
NO
NO
NO
Can a pulse sound
be monitored?
be monitored?
Does the voltage across
Tip(T) and Ring(R) rapidly
switch between 48V and 10V?
Tip(T) and Ring(R) rapidly
switch between 48V and 10V?
Do pulses (3 Vp-p) appear
at Pin44 of IC801?
at Pin44 of IC801?
Do pulses (0.6 Vp-p) appear
at base of Q103?
at base of Q103?
Check Q101,Q102.
Check Dial mode.
Check Q104
Check Line select SW
and TEL line Jack.
and TEL line Jack.
15
KX-TS2368CAW
8.3.
Tone Dialing Problems (handset)
8.4.
No Ringing Sound When Ring Signal is Input
YES
YES
YES
NO
NO
NO
Can the DTMF
sound be monitored?
sound be monitored?
Does the DTMF signal
appear at base of Q424?
appear at base of Q424?
Check Q424,Q108.
Does the DTMF signal
appear at Pin60 of IC801?
appear at Pin60 of IC801?
Check
R481, C481, Q406 and D401.
R481, C481, Q406 and D401.
Check
R445, R444, R443 and C436
R445, R444, R443 and C436
Check IC801, X801 and X802.
YES
YES
YES
YES
NO
NO
NO
NO
Call the unit from
another telephone.
another telephone.
Does a sine wave of
approximately 60V or more
appear across Tip and Ring?
approximately 60V or more
appear across Tip and Ring?
Check the telephone line
and the telephone line cord.
and the telephone line cord.
Is the voltage at the anode
and cathod of D2 [D22]* 30V?
and cathod of D2 [D22]* 30V?
Check C1,C2,R1,D1 and D3
[C21, C22, R21, D21 and D23]*
[C21, C22, R21, D21 and D23]*
Is the voltage across Pins 1
and 5 of IC1 [IC22]* 30V
and 5 of IC1 [IC22]* 30V
Check IC1 [IC22]*
Does the tone ringer
output signal appear
across Pin 8 and 5 of IC1
[IC22]*?
output signal appear
across Pin 8 and 5 of IC1
[IC22]*?
Check
IC1, R2, R3, R4, C3 and C5
[IC22, R22, R23, R24, C23
and C25]*.
IC1, R2, R3, R4, C3 and C5
[IC22, R22, R23, R24, C23
and C25]*.
Check the SW1, Q1 and T1
[SW21, Q21 and T21]*.
*[ ] : in case of Line 2
16
KX-TS2368CAW
8.5.
In Use LED is Not On
8.6.
When the both lines are held in the Conference mode; Line LED are not
Green
Green
Does the unit’s In Use Display
come on? (Line 1 and Line 2)
Check the batteries.
Check the DC-DC converter.
Check R520, D506, Q507
[R574, D556, Q557]*.
Check Q506, R552
[Q556, R576]*.
Check Q508 [Q560]*.
LED803R [LED805R]*
connector and cable.
Replace the three batteries.
Plug in the telephone to the
line source. Lift handset
off-hook.
Is the collector of Q508
[Q560]* at a High logic level.
Is the collector of Q507 [Q557]*
at a low logic level.
Is the base of Q508 [Q560]* at
a low logic level.
NO
YES
YES
YES
NO
BOTH
NG
OK
OK
OK
NO
* [ ] : in case of Line2
Check the Hold circuit.
When the both lines are held,
the LED of one line lights red
and another line’s LED lights
green.
Check the current of both TEL
lines. Is there the difference of
the current of both line over
30 mA?
Insert the resistor (R140 or
R141) of 100
Ω (1/4 W) to the
line which has larger current.
YES
YES
NO
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