DOWNLOAD Panasonic KX-TCD951GB / KX-TCD955GC Service Manual ↓ Size: 2.22 MB | Pages: 78 in PDF or view online for FREE

2

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) ...... 13~14

SCHEMATIC DIAGRAM (BASE UNIT) ............................... 15

SCHEMATIC DIAGRAM (HANDSET) ................................. 16

CIRCUIT BOARD AND WIRING CONNECTION

DIAGRAM (HANDSET) .............. 17

BLOCK DIAGRAM RF UNIT (BASE UNIT) ........................ 18

CIRCUIT OPERATION (BASE UNIT) ................................. 18

BLOCK DIAGRAM BASEBAND SECTION

        AND LINE INTERFACE (BASE UNIT) .................. 19~26

BLOCK DIAGRAM RF SECTION (HANDSET) ................... 27

BLOCK DIAGRAM BASEBAND SECTION

(HANDSET) ................................ 28

CIRCUIT OPERATION (HANDSET) ............................... 29~34

ADJUSTMENT (BASE UNIT) ................................................ 35

ADJUSTMENT (HANDSET) .................................................. 36

CHECK PROCEDURE (BASE UNIT) .............................. 37~39

CHECK PROCEDURE (HANDSET) ................................ 40, 41

TROUBLESHOOTING GUIDE ........................................ 42~50

EEPROM LAYOUT (BASE UNIT) ................................... 51~58

EEPROM LAYOUT (HANDSET) ..................................... 59~65

CABINET AND ELECTRICAL

        PARTS LOCATION (BASE UNIT) ................................. 66

CABINET AND ELECTRICAL

        PARTS LOCATION (HANDSET) ................................... 67

ACCESSORIES AND PACKING MATERIALS ...................... 68

REPLACEMENT PARTS LIST (BASE UNIT) .................. 69~71

REPLASEMENT PARTS LIST (HANDSET) .................... 72~74

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

OK

OK

Display

Talk Button

Function Button  

Recall Button            

Charge Contacts

Tone Button          

Intercom Button  

Arrow Key
(     , OK      ,     ,     )

Cancel Button  

Power Button            

Charge Contacts

Page Button            

In Use Indicator (         )

Charge Indicator (        ) 

CALLER ID Indicator (        )
(KX-TCD955GB only)

Antenna

Fig. 1

Fig. 2

OK

C

Display

Talk Button

Cancel Button

Program Button

Recall Button

Charge Contacts

Tone Button

Intercom Button

Redial/Pause
Button

OK Button

Power Button

Arrow Key
(     , OK      ,     ,     )

4

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 handset is out of range. Move closer to the base unit.

The handset is being paged from another unit.

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.

An outside call is received.

The direct call icon is displayed when this mode is turned on. (KX-TCD951GB 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-TCD951GB only.)

The Caller ID icon is displayed when viewing the Caller List or "Private ring" is set in the
phonebook. (KX-TCD955GC Only)

The phonebook icon is displayed when storing or viewing the phonebook items.
(KX-TCD955GC Only)

The present battery strength is displayed.

(Flashing)

(Flashing)

(Flashing)

A B C D E F G H I a b c d e f g

1234567890123456

 is pressed while dialing.

 is pressed while dialing.

 is pressed while dialing.

 is pressed while dialing.

“Pause” is selected while dialing.

 is pressed while dialing.

P

F