DOWNLOAD Panasonic KX-TCD951EB / KX-TCD955EC Service Manual ↓ Size: 1.94 MB | Pages: 61 in PDF or view online for FREE

Model
KX-TCD951EB KX-TCD955EC
Pages
61
Size
1.94 MB
Type
PDF
Document
Service Manual
Brand
Device
Telephone / DECT
File
kx-tcd951eb-kx-tcd955ec.pdf
Date
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45
KX-TCD951EB/KX-TCD955EC
H A N D S E T: LINK.
2
Is the base unit 
registration data contained 
in the handset?
Six handsets have already been
registered in the base unit.
Does the LCD
Display remain on,
and is the handset number
displayed?
Does the LCD
Display remain on,
and is the handset number
displayed?
Does the LCD
Display remain on,
and is the handset number
displayed?
The handset has a hardware 
(EEPROM, etc.) defect.
The handset has a hardware
(RF unit, etc.) defect.
Set the base unit selection to "0".
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
No
 (Use the method for clearing the registered handset data in the base unit.)
Use the serial communication tool to 
initialize the data inside the base unit.
Did the error 
beep sound?
Was the registration 
successful?
Use the service password (0000) to 
register the handset in the base unit.
Was the registration 
successful?
Use the base password to register the 
handset in the base unit.
3
C
A
Set the handset's power switch OFF
and then back to ON.
The handset has a hardware 
(EEPROM, etc.) defect.
B
Set the handset's power switch OFF
and then back to ON.
No
46
KX-TCD951EB/KX-TCD955EC
The base unit has a hardware 
(EEPROM, etc.) defect.
Yes
No
A mistake was made in the base unit 
selection operation.
A
Disconnect and re-connect the base 
unit's AC adaptor.
The handset has a hardware 
(EEPROM, etc.) defect.
Yes
No
Disconnect and re-connect the base 
unit's AC adaptor.
B
Set the handset's power switch OFF
and then back to ON.
The base unit has a hardware 
(EEPROM, etc.) defect.
Yes
No
The registration data has been cleared 
due to a mistake made in the operation.
Does the LCD
Display remain on,
and is the handset number
displayed?
Does the LCD
Display remain on,
and is the handset number
displayed?
Does the LCD
Display remain on,
and is the handset number
displayed?
47
KX-TCD951EB/KX-TCD955EC
H A N D S E T: DOES NOT LINK.
The base unit has a hardware 
(EEPROM, etc.) defect.
Yes
C
No
The password is wrong.  
Set a new password.
Disconnect and re-connect the base 
unit's AC adaptor.
Does the LCD
Display remain on,
and is the handset number
displayed?
Check the RFM1, IC1 and X1
soldering.
Conduct an evaluation test on the 
RF unit of the handset
(follow check procedure B). OK?    
Does the signal output from IC1 pin 10 (TP56)
of the handset have a frequency of 
10.368 MHz ± 40 Hz when the AC adaptor 
for the base unit has been disconnected?
3
Yes
OK
NG
Yes
Fails to link (base unit)? 
Clear the handset registration
data in the base unit.
(Refer to page 40.)
Adjust the clock frequency
to 10.368 MHz ± 40 Hz. 
48
KX-TCD951EB/KX-TCD955EC
BASE UNIT: DOES NOT CHARGE.
200 mA 
ammeter
J6
J7
3 size "AA" 
NiCd batteries 
connected in series
Connect the AC adaptor.
Is a voltage of 8V or more 
supplied between J2 pins
6 and 5? 
Is a charging current of approx. 
80 mA flowing while the tool 
shown in Fig. 35 is connected?
Check T16, R64, D11, R65, R66
and D12.
Check for defects in the batteries.  
Check the extent to which the 
handset is charged.
Does the charge LED light 
(while the tool shown in Fig. 35
is connected)?
Check R61, T14, 
D13 and R58
Check R63, J4, J3 and D13
Is the voltage on the T15
Base < 1 V?
Check the AC adaptor.
No
No
Yes
No
Yes
Fig. 31
Yes
No
Yes
A
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