KX-TG5511UAB, KX-TG5511UAR, KX-TGA550RUB, KX-TGA550RUR, KX-TGA551RUB, KX-TGA551RUR - Panasonic Telephone Service Manual (repair manual). Page 17

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17
KX-TG5511UA/KX-TGA550RU/KX-TGA551RU
Frequently Used Items (Base Unit)
ex.)
Note:
(*1) Refer to Registering a Handset to a Base Unit in the Operating Instructions.
(*2) When you enter the address or New Data, please refer to the table below.
(*3)
Items
Address
Default Data
New Data
Remarks
C-ID (FSK) sensitivity
04 8B
00
01 (6 dB up)
02 (12 dB up) When hex changes from “00” to “01” or “02”,
gain increases by 6 dB or 12 dB.
Frequency
00 08/00 07
02/70
-
-
Use these items in a READ-ONLY mode to
confirm the contents. Careless rewriting may
cause serious damage to the computer system.
ID
00 02~00 06
Given value
-
-
Bell length
02 18
32 (5sec) (*3)
1E (3 sec)
14 (2 sec)
This is time until bell stops ringing.
(Unit: 100 ms)
PULSE Dial speed
(10PPS -> 20PPS)
01 F8
28 (40msec) 
(*3)
14 (20msec)
-
This is pulse make time. (Unit:1 ms)
01 F9
3C (60msec) 
(*3)
1E (30msec)
-
This is pulse break time. (Unit:1 ms)
02 07
57 (870msec) 
(*3)
2C (440msec)
-
This is inter-digit time in pulse mode.
 (Unit:10 ms)
Desired Number (hex)
Input Keys
Desired Number (hex)
Input Keys
0
0
A
[R]  +  0
1
1
B
[R]  +  1
.
.
C
[R]  +  2
.
.
D
[R]  +  3
.
.
E
[R]  +  4
9
9
F
[R]  +  5
Bell length
32(hex) = 50(dec) 
→ 50 × 100 msec = 5000 msec (5 sec)
PULSE Dial speed
(10PPS -> 20PPS)
28(hex) = 40(dec) 
→ 40 × 1msec = 40msec
3C(hex) = 60(dec) 
→ 60 × 1msec = 60msec
57(hex) = 87(dec) 
→ 87 × 10msec = 870msec
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KX-TG5511UA/KX-TGA550RU/KX-TGA551RU
8.1.2.
Handset
Important:
     
Make sure the address on LCD is correct when entering new data. Otherwise, you may ruin the unit.
H/S key operation
H/S LCD
1).   Press         .
2).   Select "Initial Setup" using      or     
       then press          or 
{>}
.
{^}  {V}
3).   Enter "7", "2", "6", "2", "7", "6", "6", "4".
       Note: 7262 7664 = PANA SONI 
                (see letters printed on dial keys)
5).   Enter "
٨
", "
٨
", "
٨
", "
٨
" (Address). (*1)  
7).   Press        , a long confirmation beep
       will be heard. 
8).   Press           (off) to return to standby mode.
          After that, remove and reinsert the batteries. Press the Power button for 
          about 1 second if the power is not turned on. 
6).   Enter "
㧖", "㧖" (New Data). (*1)
4).   Select "Write EEP" using      or     
       then press          or 
{>}
.
{^}  {V}
M
M
Default Data
New Data
M
M
M
M
Caller List
^
V
M
^
V
Initial Setup
^
V
Service Mode
 Read EEP
 
Write EEP
Set Addr.:
_ _ _ _   _ _
Set Addr.:
Set Addr.:
Ringer Setup
8
M
M
M
M
{C} (Talk)
{s} (Speakerphone)
Dial keypad
{ic} (Off/Power)
ECO/R
}
ECO: Eco mode shortcut key
R: Recall/Flash
Soft keys
 Navigator
 
key
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KX-TG5511UA/KX-TGA550RU/KX-TGA551RU
Frequently Used Items (Handset)
ex.)
Note:
(*1) When you enter the address or New Data, please refer to the table below.
(*2) When adding “01” (hex) to default value, sending level increases by 0.25 dB.
ex.)
(*3) When reducing “01” (hex) from default value, receiving level increases by 0.25 dB.
ex.)
(*4) Use these items in a READ-ONLY mode to confirm the contents. Careless rewriting may cause serious damage to the
handset.
Items
Address
Default Data
New Data
Possible Adjusted
Value MAX (hex)
Possible Adjusted
Value MIN (hex)
Remarks
Sending level
03 17
Adjusted value
Given value
F3
F3
(*2)
Receiving level
03 18
Adjusted value 
Given value
DB
DB
(*3)
Battery Low
00 09
70
-
-
-
(*4)
Frequency
00 08/00 07
02/70
-
-
-
ID
00 02~00 06
Given value
-
-
-
Desired Number (hex.)
Input Keys
Desired Number (hex.)
Input Keys
0
0
A
[R]  +  0
1
1
B
[R]  +  1
.
.
C
[R]  +  2
.
.
D
[R]  +  3
.
.
E
[R]  +  4
9
9
F
[R]  +  5
Item
Default Data
New Data
E7
EB
E3
Sending level
-2.5dBm
-1.5dBm
-3.5dBm
Item
Default Data
New Data
E7
EB
E3
Receiving level
-30.5dBm
-31.5dBm
-29.5dBm
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KX-TG5511UA/KX-TGA550RU/KX-TGA551RU
8.2.
Copying Phonebook Items when Repairing
You can copy the handset phonebook to another (compatible Panasonic) handset. This will help to save the original phonebook
data which the customer has registered.
Refer to the following procedures.
Note:
• BS=Base Unit, HS=Handset
• If the max number of handsets are already registered to the base unit, a new handset cannot be registered.
• To register the handset, refer to Registering a Handset to a Base Unit in the Operating Instructions.
• To cancel the handset, refer to Deregistering a Handset in the Operating Instructions.
• To copy the handset phonebook, refer to Copying Phonebook Entries in the Operating Instructions.
BS
HS
Phonebook
data
Phonebook data is stored in a handset.
1. Register  HS (A) to BS (B).
    HS (A) is normal, therefore no need to copy the 
    phonebook data.
1. Register HS (A) to BS (B) as a handset no. 2.
2. Copy the phonebook data from HS (A) to HS (B).
3. Cancel the HS 2 (HS (A)).
BS (A)
NG
HS (A)
BS (A)
NG
BS (B)
Service center has
a normal BS (B).
HS (A)
Case 1: A base unit has a defect.
             (Replacing a base unit PCB etc...)
HS (A)
BS (B)
HS (B)
HS (A)
Case 2: A base unit has a defect.
             (Replacing both a base unit and a handset)
Service center has a normal
BS (B) and a normal HS (B).
2
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KX-TG5511UA/KX-TGA550RU/KX-TGA551RU
Note:
• BS=Base Unit, HS=Handset
• If the max number of handsets are already registered to the base unit, a new handset cannot be registered.
• To register the handset, refer to Registering a Handset to a Base Unit in the Operating Instructions.
• To cancel the handset, refer to Deregistering a Handset in the Operating Instructions.
• To copy the handset phonebook, refer to Copying Phonebook Entries in the Operating Instructions.
1. Cancel HS (A).
2. Register HS (B) as a handset no. 1.
3. Register HS (A) as a handset no. 2.
4. Copy the phonebook data from HS (A) to HS (B).
5. Cancel HS 2 (HS (A)).
BS (A)
NG
HS (A)
BS (A)
HS (B)
HS (A)
Case 3: A handset has a defect.
             (Radio transmission is functioning.)
NG
1. Register HS (A) as a handset no. 2.
2. Copy the phonebook data from HS (A) to HS (B).
3. Cancel HS 2 (HS (A)).
NG
HS (A)
BS (B)
HS (B)
HS (A)
Case 4: A handset has a defect.
             (Radio transmission is functioning.)
NG
Service center has 
a normal HS (B).
Service center has a normal
BS (B) and a normal HS (B).
2
2
1
BS (A)
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KX-TG5511UA/KX-TGA550RU/KX-TGA551RU
8.3.
How to Clear User Setting
Units are reset to the Factory settings by this operation (Erase stored Phone numbers, Caller list and etc.)
Note:
• Some menus are not reset. Refer to Operating Instructions (P.15).
• The reset menus differ depending on the following operations.
• This operation should not be performed for a usual repair.
8.3.1.
Resetting both base unit and handset
Both the base unit and the registered handset which you did the following steps 
 to 
 are reset. Other registered handsets
will not be reset.
Note:
(*1) Refer to Registering a Handset to a Base Unit in the Operating Instructions.
8.3.2.
Resetting only handset
The only handset is reset by doing the following steps 
 to 
.
Note: (*2)
• The handset registration to the base unit is cancelled.
• If the handset needs to be registered to the base unit, refer to Registering a Handset to a Base Unit in the Operating
Instructions.
• If users do not bring the base unit with them, the registration procedure has to be done by users themselves.
1
1
 Connect the AC adaptor to the base unit and install the charged batteries into the handset.
2
 Confirm the handset is registered to the base unit (     lights). 
     If the handset is not registered to the base unit (     lights), register it. (*1)
3
 Lift the handset and press 
{ih} to put the handset in standby mode.
4
 Press     ,     ,      and      key of the handset simultaneously until a confirmation tone is heard.
5
 Disconnect the AC adaptor, then remove the battery.
1
5
9
Handset
Base unit
w
1
1
 Install the charged batteries into the handset.
2
 Lift the handset and press {ih} to put the handset in standby mode.
4
 Remove the battery.
3
 Press     ,     ,      and      key of the handset simultaneously until a confirmation tone is heard. (*2)
3
5
7
#
Handset
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KX-TG5511UA/KX-TGA550RU/KX-TGA551RU
9 Troubleshooting Guide
9.1.
Troubleshooting Flowchart
Flow Chart
Cross Reference:
Check Power (P.24)
Bell Reception (P.34)
Check Battery Charge (P.25)
Check Link (P.26)
Check the RF part (P.30)
Check Handset Transmission (P.33)
Check Handset Reception (P.33)
Signal Route (P.14)
Check Caller ID (P.33)
Power ON Base Unit
Bell
Link
Battery Charge
Handset Voice Transmission
Handset Voice Reception
DTMF dial
OK
OK
No Link
OK
OK
OK
OK
OK
Not working
No bell
No voice
No charge
No voice
No signal
Check Handset Transmission
Check Handset Reception
Signal Route
Check Battery Charge
Bell Reception
Check Power
Check Link
Range
NG
Check the RF part
Caller ID Reception
OK
No signal
Check Caller ID
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KX-TG5511UA/KX-TGA550RU/KX-TGA551RU
9.1.1.
Check Power
9.1.1.1.
Base Unit
Is the AC Adaptor inserted into AC outlet? (*1)
Cross Reference:
Power Supply Circuit (P.9)
Note:
(*1) Refer to Specifications (P.6) for part number and 
supply voltage of AC Adaptor.
9.1.1.2.
Handset
Cross Reference:
Power Supply Circuit/Reset Circuit (P.12)
Is input of IC1 about 6.5 V - 8 V?
Check C32, C36 are not shorted.
Check AC Adaptor.
Check Power Supply Circuit.
Is the output voltage of IC2 about 3.0 V?
Does BBIC (IC7: 10) oscillate at 10.368 MHz?
Check X1.
Check BBIC (IC7).
Is the Collector of Q8 about 1.8 V?
Is BBIC (IC7: 61) High?
Check BBIC (IC7).
YES
YES
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
Is the Collector of Q9 about 2.5 V?
YES
Is the output voltage of BBIC (IC7:43) about 2.5V?
Is the output voltage of BBIC (IC7:42) about 3.0V?
YES
YES
YES
NO
NO
NO
Check Power Supply Circuit/Reset Circuit.
Check BBIC (IC1).
Check X1.
Is the voltage of  BATT+ 2.3 V more?
Check the battery and around BATT+ and
BATT- are not shorted.
Is the battery inserted BATT+ and BATT-?
Does BBIC (IC1: 10) oscillate at 10.368 MHz?
YES
YES
YES
NO
NO
YES
YES
Is the voltage of " 1.8V"  about 1.8 V?
Is the voltage of CP3.0V about 3.0V?
Check BBIC (IC1).
YES
Is the voltage of CP4.0V about 4.0V?
NO
NO
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KX-TG5511UA/KX-TGA550RU/KX-TGA551RU
9.1.2.
Check Battery Charge
9.1.2.1.
Base Unit
Cross Reference:
Charge Circuit (P.12)
9.1.2.2.
Handset
Cross Reference:
Check Power (P.24)
Charge Circuit (P.12)
9.1.2.3.
Charger Unit
Cross Reference:
Charge Circuit (P.12)
Check Charge Circuit of Base Unit.
Check Handset.
Plug in the AC Power source.
Charge Handset on Base Unit.
Is the voltage of two charge contacts about
3 V or more?
OK
NO
Check Charge Contacts at 
Base Unit from mechanical point of view.
YES
Is BBIC (IC1: 52) high at charge state?
Check Charge Circuit.
Check Power of Handset.
Is Check Power OK?
NO
NO
YES
Check Charge Circuit of Charger Unit.
Check Handset.
Plug in the AC Power source.
Charge Handset on Charger Unit.
Is the voltage of two charge contacts about
3 V or more?
OK
NO
Check Charge Contacts at Charger Unit
from mechanical point of view.
YES
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KX-TG5511UA/KX-TGA550RU/KX-TGA551RU
9.1.3.
Check Link
9.1.3.1.
Base Unit
Note:
(*1) Refer to Troubleshooting by Symptom (Base Unit and Charger Unit) (P.35)
Cross Reference:
Check Point (Base Unit) (P.35)
Power Supply Circuit (P.9)
Check around Power Supply Circuit.
Adjust VDD1 voltage to 1.8 V. 
Refer to Check Point...(B).
Does Base Unit make link with normal working
Handset? 
Check around X1 and IC801 and adjust clock 
frequency.
Refer to Check Point...(G).
NO
NO
NO (*1)
NO
YES
YES
YES
YES
YES
NO
NO
NO
Replace with a new Circuit Board.
Is the modulation OK? 
Refer to Check Point...(K).
Is the voltage of VDD3 about 3.0 V?
Refer to Check Point...(A).
Is there CMD60 (: DECT Tester)?
Does the RF clock (CLK) oscillate at 10.368 MHz in
Base Unit Test Mode?
Refer to Check Point...(G).
Is the voltage of VDD1 about 1.8 V?
YES
Is the NTP value OK? 
Refer to Check Point...(J).
Does Base Unit make link with CMD60 in Base Unit 
Test Mode?
Refer to Check Point...(J).
NO
YES
Base Unit is OK. Check Handset.
YES
YES
Is the Frequency Offset OK? 
Refer to Check Point...(L).
NO
OK
 

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