Read Panasonic KX-TCD951EB / KX-TCD955EC Service Manual online
1
KX-TCD951EB/KX-TCD955EC
Telephone Equipment
KX-TCD951EB
KX-TCD955EC
(Handset)
(KX-TCD955EC)
(Base Unit)
(KX-TCD955EC)
Digital Cordless Phone
ORDER NO. KM49910491C2
•¡SPECIFICATION
Standard:
Number of channels:
Frequency range:
Duplex procedure:
Channel scanning:
Bit rate spacing:
Modulation:
Voice coding:
Operation range:
Analog telephone
connection:
Power source:
Power consump-
tion, Base unit:
D E C T =D igital E nhanced C ordless
Telecommunications
G A P =G eneric Access P rofile
(herstellerübergreifendes
DECT-Funkübertragungsverfahren)
120 Duplex Channels
1.88 GHz to 1.9 GHz
Time Multiplex, 10 ms frame length
1728 kHz
1152 kbit/s
G F S K
32 kbit/s
Up to 300 m outdoors,
up to 50 m indoors
Telephone Line / PBX
AC Adaptor 230 V ~ /50 Hz
5 VA
Battery life, Handset
(if batteries are
fully charged):
Operating conditions:
Dialing modes:
Rec button (set default):
for PBX:
Rec button (option):
Dimensions, Base unit:
Dimensions, Handset:
Weight, Base unit:
Weight, Handset:
Telephone line cord length:
AC adaptor cord length:
Connection jack:
AC adaptor cord:
Stand-by: Up to 65 hours (Ni-Cd)
Talk: Up to 6 hours (Ni-Cd)
5º- 40ºC, 20 - 80% relative
air humidity (not condensing)
Pulse/Tone
Flash (80 ms)
Flash (700 ms)
Earth (400 ms/1300 ms)
about 193 mm x 130 mm x 68 mm
(L x W x D)
about 160 mm x 56 mm x 31 mm
(L x W x D)
about 270 g
about 150 g
about 2.1 m
about 2 m
Modular jack 6/4
Design and specification are subject to change without notice.
(for United Kingdom)
CER ID
C
(Handset)
(KX-TCD951EB)
1
ABC
2
DEF
3
G HI
4
J KL
5
MNO
6
PQRS
7
TUV
8
0
WXYZ
9
INT'
OK
OK
C
PWR
RCL
PROG
RDL
1
ABC
2
DEF
3
G HI
4
J KL
5
MNO
6
PQRS
7
TUV
8
0
WXYZ
9
PWR
RCL
F
C
INT'
OK
OK
KX-TCD951EB/KX-TCD955EC
2
WARNING
This service information is designed for experienced repair technicians only and is not designed for use by the general public.
It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a
product. Products powered by electricity should be serviced or repaired only by experienced professional technicians.
Any attempt to service or repair the product or products dealt with in this service information by anyone else could result in
serious injury or death.
When you mention the serial number, write down all 11 digits. The serial number may be found on the label affixed to the bottom
of the unit.
LOCATION OF CONTROLS ............................................. 3, 4
DISASSEMBLY INSTRUCTIONS .......................................... 5
SETTINGS ........................................................................ 6~8
OPERATION ................................................................... 9~10
SETTING THE RECEIVER VOLUME .................................. 11
CIRCUIT BOARD AND WIRING CONNECTION
DIAGRAM (BASE UNIT) ............. 15
CIRCUIT BOARD AND WIRING CONNECTION
DIAGRAM (HANDSET) ............... 16
SCHEMATIC DIAGRAM (BASE UNIT) ................................. 17
SCHEMATIC DIAGRAM (HANDSET) .................................. 18
BLOCK DIAGRAM RF UNIT (BASE UNIT) .......................... 19
BLOCK DIAGRAM BASEBAND SECTION
AND LINE INTERFACE (BASE UNIT) ......................... 20
CIRCUIT OPERATION (BASE UNIT) ............................ 21~27
BLOCK DIAGRAM BASEBAND SECTION
BLOCK DIAGRAM RF SECTION (HANDSET) .................... 28
BLOCK DIAGRAM BASEBAND SECTION
(HANDSET) ................................ 29
TABLE OF CONTENTS
CIRCUIT OPERATION (HANDSET) ................................ 30~35
ADJUSTMENT (BASE UNIT) ................................................. 36
ADJUSTMENT (HANDSET) ................................................... 37
CHECK PROCEDURE (BASE UNIT) .............................. 38~40
CHECK PROCEDURE (HANDSET) ............................... 41, 42
TROUBLESHOOTING GUIDE ......................................... 43~51
EEPROM LAYOUT (BASE UNIT) ..................................... 52~59
EEPROM LAYOUT (HANDSET) ...................................... 60~66
CABINET AND ELECTRICAL
PARTS LOCATION (BASE UNIT) ................................... 67
CABINET AND ELECTRICAL
PARTS LOCATION (HANDSET) ..................................... 68
ACCESSORIES AND PACKING MATERIALS ....................... 69
REPLACEMENT PARTS LIST (BASE UNIT) ................... 70~72
REPLASEMENT PARTS LIST (HANDSET) ..................... 73~75
FOR SERVICE TECHNICIANS
ICs and LSIs are vulnerable to static electricity.
When repairing, the following precautions will help prevent recurring malfunctions.
1. Cover plastic parts boxes with aluminum foil.
2. Ground the soldering irons.
3. Use a conductive mat on worktable.
4. Do not grasp IC or LSI pins with bare fingers.
3
KX-TCD951EB/KX-TCD955EC
1
ABC
2
DEF
3
G HI
4
J KL
5
MNO
6
PQRS
7
TUV
8
0
WXYZ
9
PWR
RCL
F
C
INT'
OK
OK
Display
Talk Button
Function Button
Recall Button
Charge Contacts
F
Tone Button
Intercom
Navigator Key
Cancel Button
Power Button
Button
I N T
C
RCL
PWR
(
, OK
,
,
)
L O C ATION OF CONTROLS
BASE UNIT
H A N D S E T
Charge Contacts
Page Button
In Use Indicator ( )
Charge Indicator ( )
CALLER ID Indicator
(KX-TCD955EC only)
(KX-TCD955EC only)
Antenna
CALLER ID
Fig. 1
Fig. 2
(KX-TCD951EB)
(KX-TCD955EC)
1
ABC
2
DEF
3
G HI
4
J KL
5
MNO
6
PQRS
7
TUV
8
0
WXYZ
9
INT'
OK
OK
C
PWR
RCL
PROG
RDL
Display
Talk Button
Program
Recall Button
Tone Button
Charge Contacts
Intercom
OK Button
Navigator Key
,
Redial/Pause
Power
Button
I N T
Cancel Button
C
OK
RCL
Button
PROG
Button
RDL
Button
PWR
KX-TCD951EB/KX-TCD955EC
4
Icons:
The in range icon indicates that the handset is in range of the base unit.
It flashes when the handset is out of range.
The page/intercom icon is displayed when paging or using the intercom.
It flashes when another unit pages the handset.
The talk icon is displayed when making or answering calls. It flashes when an outside call is
being received.
The direct call icon is displayed when this mode is turned on. (KX-TCD951EB only)
The call prohibition icon is displayed when this mode is turned on.
The program icon indicated that the unit is in the programming mode. (KX-TCD951EB only.)
The Caller ID icon is displayed when viewing the Caller List or "Private ring" is set in the
phonebook. (KX-TCD955EC Only)
The phonebook icon is displayed when storing or viewing the phonebook items.
(KX-TCD955EC Only)
The present battery strength is displayed.
(KX-TCD955EC)
(KX-TCD951EB)
A B C D E F G H I a b c d e f g
1234567890123456
Characters:
RDL
is pressed while dialing.
CL
is pressed while dialing.
is pressed while dialing.
is pressed while dialing.
“Pause” is selected while dialing.
CL
is pressed while dialing.
(KX-TCD951EB)
(KX-TCD955EC)
P
F