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13

The power supply is as shown.

In case that the power from AC adaptor is lost and lose radio waves, BBIC (IC1) turns IC6 ON since handset presumes that
base unit's power is failed.
Base unit detects that power voltage of AC adaptor +5.5V is OFF at IC351, then turns Q351 ON.
It's possible to use the units during the power failure, supplying power to VBAT of base unit from battery of handset through IC7,
CHG terminal and Q351.

R1

TP1

TP2

J1

AC Adaptor

F1

IC7

Handset

BATT+

BATT_

Base Unit

Q351

VBAT

IC351

VIN

VOUT

COUT

BBIC

IC1

R45

CHG-

CHG+

D1

R354

R355

R351

R352

3

VOUT

VIN

VSS

+5.5V

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 - P1 

SP-PHONE TX
(to Tel Line)

 SP-PHONE RX
(to Tel Line)

Caller ID 
(from Tel Line)

(BASE UNIT)
B - P1 - C4 -  R6 - R33 - IC7 (21)        IC7 (95) -   
A - C3 -  R4 - R35 - IC7 (23)

(BASE UNIT)
IC7 (27) - R116 - R29 - C22 - Q5 - Q3 - D3          A 

P1 - B

(BASE UNIT)
A              D3 - Q3 - Q5 - R20 - C56 - R117 - IC7 (25)

(HANDSET)
MIC (+) - C13 - RA4 - IC1 (19)        IC1(79) - L802
MIC (  ) - C11 - RA4 - IC1 (20)          IC1(78) - C813        C812 -
DA801 -  C803 - ANT  to BASE

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

ANT2 - C853

 C864 - IC7 (3)  

 C863 - IC7 (2) 

IC7 (27) - R116 - R29 - C22 - Q5 - Q3 - D3 

 P1- B

 A

- L802        C812 - DA801 - C803 -  DA802 

D3 - Q3  - Q5 - R20 - C56 - R117 - IC7 (25)        IC7 (95) - 

 to HANDSET

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

(BASE UNIT)
A      
B - P1

 IC7 (94) - 

 C851 - ANT1
 C853 - ANT2

C864 - IC1 (3)
C863 - IC1 (2)

IC (23) - RECEIVER (+)

IC (24) - RECEIVER (  )

IC7 (94) - C813

 L802         C812 -    

DA801 -  C803 - DA802       

 to HANDSET

 C851 - ANT1
 C853 - ANT2

(HANDSET)
MIC (+) - C13 - RA4 - IC1 (19)        IC1(79) - L802
MIC (  ) - C11 - RA4 - IC1 (20)          IC1(78) -
DA801 - C803 - ANT to BASE

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

ANT2 - C853

C813        C812 -

C864 - IC7 (3)  

C863 - IC7 (2) 

IC7 (27) - R116 - R29 - C22 - Q5 - Q3 - D3 

 P1 - B

 A

- L802       C812 - DA801 - C803 - DA802 

D3 - Q3  - Q5 - R20 - C56 - R117 - IC7 (25)        IC7 (95) -

 to HANDSET

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

(BASE UNIT)
A      
B - P1

 IC7 (94) -

 C851 - ANT1
 C853 - ANT2

C864 - IC1 (3)
C863 - IC1 (2)

IC1 (34) - SP (-)

IC1 (36) - SP (+)

- C813 

- C813 

15

SIGNAL ROUTE

ROUTE

IN

OUT

SIGNAL

Memo/OGM 
Recording 
(from Handset)

ICM Recording
(from Tel Line)

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

                                     IC7(70) - IC421(5)

 ANT2 - C853

B - P1

(BASE UNIT)
A               D3 - Q3 - Q5 - R20 - C56 - R117 - IC7 (25) - IC7(70) - IC421(5)  

Message Play
(to Handset)

(BASE UNIT)
IC421(2) - IC7 (69) 

(BASE UNIT)
IC421(2) - IC7 (69) - IC7 (27) - R116 - R29 - C22 - 

A

Message Play
(to Tel Line)

Message Play
(to Base Unit)

(BASE UNIT)
IC421(2) - IC7 (69)        IC7 (41) - L141 - SPp  

IC7 (43) - L140 - SPn

(HANDSET)
MIC (+) - C13 - RA4 - IC1 (19)        IC1(79) - L802
MIC (  ) - C11 - RA4 - IC1 (20)          IC1(78) -  
DA801 - C803 - ANT

C813       C812 -

to BASE UNIT 

 C864 - IC7(3)

 C863 - IC7(2)

IC7(95) -  IC801 (9) - L802          C812 - DA801 - C803 -

IC7(94) - C813

DA802 

 C851 - ANT1

 C853 - ANT2

 to HANDSET

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

C864 - IC1 (3)
C863 - IC1 (2)

IC1 (34) - SP (-)

IC1 (36) - SP (+) 

  Q5 - Q3 - D3

P1 - 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

Recall

Earth Recall feature is not supported in this model.

L Change the PIN using the following method.

8  132

7

Enter the new 4-digit base unit PIN. 

i

M 

i 

{ic}

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