DOWNLOAD Panasonic KX-TG5521RUB / KX-TGA551RUB Service Manual ↓ Size: 2.92 MB | Pages: 88 in PDF or view online for FREE

13

The power supply is as shown.

R1

TP1

TP2

J1

AC Adaptor

F1

14

SIGNAL ROUTE

ROUTE

IN

OUT

SIGNAL

DTMF TONE
TEL OUT 
(to Tel Line)

CDL TX
(to Tel Line)

CDL RX
(from Tel Line)

DTMF TONE
TEL IN
(from Tel Line)

B - L2 

SP-PHONE TX
(to Tel Line)

 SP-PHONE RX
(to Tel Line)

Caller ID 
(from Tel Line)

(BASE UNIT)
B - L2 - C4 -  R6 - R33 - IC7 (21)        IC7 (77) - R801 (4)  
A - L1 - C3 -  R4 - R35 - IC7 (20)

(BASE UNIT)
IC7 (16) - R116 - R29 - C22 - Q5 - Q3 - D3         L1 - A 

 L2 - B

(BASE UNIT)
A - L1         D3 - Q3 - Q5 - R20 - C56 - R117 - IC7 (18)

(HANDSET)
MIC (+) - R73 - C11 - RA4 - IC1 (20)        IC1(77) - IC801 (4) 
MIC (  ) - R74 - C13 - RA4 - IC1 (19)          IC1(78) - IC801 (3) 
DA801 -  C803 - ANT  to BASE

(BASE UNIT)
from HANDSET   ANT1 - C851         DA802 - C859 - C803 - DA801 - C826 

ANT2 - C853

 IC801(9) - L802 - C812 -

 IC7 (3)  

 IC7 (2) 

IC7 (16) - R116 - R29 - C22 - Q5 - Q3 - D3 

 L2 - B

 L1 - A

L802 - C812 - DA801 - C803- C859 - DA802 

D3 - Q3  - Q5 - R20 - C56 - R117 - IC7 (18)        IC7 (77) - IC801 (4)

 to HANDSET

(HANDSET)
from BASE UNIT   ANT - C803 - DA801 -  C826 

(BASE UNIT)
A - L1      
B - L2

 IC7 (78) - IC801 (3)

  IC801 (9) -

 C851 - ANT1
 C853 - ANT2

IC1 (3)
IC1 (2)

IC1 (16) - RECEIVER (+)

IC1 (15) - RECEIVER (  )

IC7 (78) - R801 (3)

IC801 (9) - L802 - C812 -    

DA801 -  C803 - C859 - DA802       

 to HANDSET

 C851 - ANT1
 C853 - ANT2

(HANDSET)
MIC (+) - R73 - C11 - RA4 - IC1 (20)        IC1(77) - IC801 (4) 
MIC (  ) - R74 - C13 - RA4 - IC1 (19)          IC1(78) - IC801 (3) 
DA801 - C803 - ANT to BASE

(BASE UNIT)
from HANDSET   ANT1 - C851         DA802 - C859 - C803 - DA801 -C826 

ANT2 - C853

 IC801(9) - L802  - C812 -

IC7 (3)  

IC7 (2) 

IC7 (16) - R116 - R29 - C22 - Q5 - Q3 - D3 

 L2 - B

 L1 - A

L802  - C812 - DA801 - C803 - C859 - DA802 

D3 - Q3  - Q5 - R20 - C56 - R117 - IC7 (18)        IC7 (77) - IC801 (4)

 to HANDSET

(HANDSET)
from BASE UNIT   ANT - C803 - DA801 -  C826 

(BASE UNIT)
A - L1      
B - L2

 IC7 (78) - IC801 (3)

  IC801 (9) -

 C851 - ANT1
 C853 - ANT2

IC1 (3)
IC1 (2)

IC1 (33) - SP (-)

IC1 (35) - SP (+)

15

SIGNAL ROUTE

ROUTE

IN

OUT

SIGNAL

Memo/OGM 
Recording 
(from Handset)

ICM Recording
(from Tel Line)

(BASE UNIT)
from HANDSET        ANT1 - C851          DA802 - C859 - C803 - DA801 - C826 

                           IC7(54) - IC421(5)

 ANT2 - C853

B - L2

(BASE UNIT)
A - L1        D3 - Q3 - Q5 - R20 - C56 - R117 - IC7 (18) - IC7(54) - IC421(5)  

Message Play
(to Handset)

(BASE UNIT)
IC421(2) - IC7 (53) 

(BASE UNIT)
IC421(2) - IC7 (53) - IC7 (16) - R116 - R29 - C22 - 

L1 - A

Message Play
(to Tel Line)

Message Play
(to Base Unit)

(BASE UNIT)
IC421(2) - IC7 (53)        IC7 (33) - R87 - SPp  

IC7 (35) - R86 - SPn

(HANDSET)
MIC (+) - R73 - C11 - RA4 - IC1 (20)        IC1(77) - IC801 (4) 
MIC (  ) - R74 - C13 - RA4 - IC1 (19)          IC1(78) - IC801 (3) 
DA801 - C803 - ANT

 IC801(9) - L802 - C812 -

to BASE UNIT 

 IC7(3)

 IC7(2)

 IC7(77) - IC801(4)  

 IC7(78) - IC801(3)  

 IC801(9) - L802 - C812 - DA801 - C803 -

C859 - DA802 

 C851 - ANT1

 C853 - ANT2

 to HANDSET

(HANDSET)
from BASE UNIT   ANT -  C803 - DA801 - C826 

 IC1 (3)
 IC1 (2)

IC1 (33) - SP (-)

IC1 (35) - SP (+) 

  Q5 - Q3 - D3

L2 - B

16

Refer to the Operating Instructions.

You can download and refer to the Operating Instructions (Instruction book) on TSN Server.

Refer to the Operating Instructions.

You can download and refer to the Operating Instructions (Instruction book) on TSN Server.

Refer to the Operating Instructions.

You can download and refer to the Operating Instructions (Instruction book) on TSN Server.

Items

Contents

Battery

You could use other rechargeable batteries sold in a market, but the unit is not guaranteed to work 
properly.

The battery strength may not be indicated correctly if the battery is disconnected and connected again, 
even after it is fully charged. In that case, by recharging the battery as mentioned in the Operating  
Instructions, you will get a correct indication of the battery strength.

PIN Code

Change the PIN using the following method.

8 i {#}{1}{3}{2}

{*}{7}{0}{0}{0}

Enter the new 4-digit base unit PIN. 

i M i {ic}