DOWNLOAD Panasonic KX-A406CE / KX-A406UK / KX-A406AL Service Manual ↓ Size: 924.51 KB | Pages: 31 in PDF or view online for FREE

7

(BBIC, EEPROM) is a digital speech/signal proessing system.
The BBIC system is fully controlled by a host processor.
The host processor provides activation and control of all that functions as follows.

• Block Interface Circuit

RF part, LED, Key scan

Following information data is stored.

• Settings

ex: Parameters for adequate performance

RF part

 Host CPU

TDD & TDMA
 with FHSS
Processor

Program Button / LEDs

EEPROM IC611

8

The power supply voltage from AC adaptor is converted to VBAT (3.0 V) in IC302. VBAT is used for BBIC and all peripherals.
Circuit Operation:

The parts marked *1 are located inside the shield box and cannot be seen from the outside.

5.05V

6.5V

VBAT

RSTN(Reset) 

pin 54

VBAT

pin 10

pin 57

pin 9

IC501

IC302

IC611

BBIC

VDDC (1.2V)

3.0V

REGULATOR

STM/CKM

RF Part

EEPROM

RSSI* /ID LED

STATUS LED

Startmonitor

(IC501 57pin)

VDDC (1.2 V)

VBAT

Reset (RSTN) 
(IC501_54 pin)

BBIC chip initialize

(CKM/STM)

AC Adaptor

Q301

IC301

DC/DC

C371

1

*1 RSSI : Received Signal Strength Indication

9

1. Turn on the repeater by connecting the AC adaptor.

The STATUS LED and the RSSI/ID LED will turn amber for 2 seconds.

2. If the repeater is unregistered, the STATUS LED will flash red, and the repeater automatically enters Easy Registration mode.

3. When the repeater has found a CS, the STATUS LED will turn green. Registration is complete.

10

(*1) CS:Cell Station
(*2) PS:Portable Station   
(1-5) Refer to Check Table for repeater operation (P.11)

Check Power (P.12)
Check Link (P.13)
Check the RF part (P.14)