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(F)* Battery Monitor Check

-

1. Apply 2.25 V between BATT+ and BATT-.
2. Execute the command 

sendchar PAD
sendchar LED 0
sendchar CRX 0 1
sendchar AD1
It assumes that the return value is XX.
a)  6c   XX   71: No need to adjust
b) XX: 6A ~ 6B: Need to adjust
XX: 72 ~ 74: Need to adjust
Write AD value of 2.25 V to EEPROM.
ex) read data: XX = 6A, write data: YY = 6A
read data: XX = 73, write data: YY = 73
EEPROM = 0004(Low Voltage) write “YY”
Execute the command “wreeprom 00 04 01 YY”.
EEPROM = 0005(No Voltage) write ‘’YY - 1D’’
Execute the command “×wreeprom 00 05 01 ZZ”.
EEPROM = 000A(Low Voltage BL) write “YY - 16”
Execute the command “wreeprom 00 0A 01 WW”.

ZZ = YY - C

No Voltage writing data limit is ‘00’.
c) XX: 00 ~ 69: Reject
XX: 75 ~ FF: Reject

IC1, F1, C1, 

R45

(G)

Battery Low Confirma-

tion

-

1. Apply 2.40 V between BATT+ and BATT-.
2. Confirm that there is no flashing of Battery Icon.
3. Apply 2.25 V ± 0.08 V between BATT+ and BATT-.
4. Confirm that there is flashing of Battery Icon.

IC1, F1, C1, 

R45

(H)* BBIC Clock Adjustment

CLK

1. Apply 2.6 V between BATT+ and BATT- with DC power.
2. Input Command “sendchar sfr”, then you can confirm the current value.
3. Check X’tal Frequency. (10.368 MHz ± 100 Hz).
4. If the frequency is not 10.368 MHz ± 100 Hz, adjust the frequency of CLK exe-

cuting the command “sendchar sfr xx xx (where xx is the value)” so that the
reading of the frequency counter is 10.368000 MHz ± 5 Hz.

Note:

Clear the registered information for Base Unit before measurement, because the
Frequency will not possibly get stable due to the registered information.
Pressing the button of “3” “7” “9” “#” clears the registration.
Register to it on Base Unit after measurement. 

IC1, X1, C47

 

(I)* Transmitted Power Con-

firmation

-

Remove the Antenna before starting step from 1 to 4.

1. Configure the DECT tester (CMD60) as follows;

<Setting>

• Test mode: PP
• RFPI: 0102030405
• Traffic Carrier: 5
• Traffic Slot: 4
• Mode: Loopback
• RF LEVEL = -70 dBm
• PACKET: PP32Z

2. Execute the command “sendchar TST 01 02 03 04 05".
3. Initiate connection from DECT tester.
4. Confirm that the NTP value at ANT is 19 dBm ~ 25 dBm.

IC1, 

C802~C806, 
C808~C814, 
C819~C820, 

C822, 

C825~C827, 

C834, 

C859~C864, 

L801~L804, 

DA801, 

R801~R808

(J)* Modulation Check and 

Adjustment

-

Follow steps 1 to 3 of (K).

4.Confirm that the B-Field Modulation is -370±30/ +370±30 kHz/div & Modulated
width   690 kHz using data type Fig 31.

IC1, 

C802~C806, 
C808~C814, 
C819~C820, 

C822, 

C825~C827, 

C834, 

C859~C864, 

L801~L804, 

DA801, 

R801~R808

Items

Check 

Point

Procedure

Check or 

Replace Parts

42

(K)* Frequency Offset Confir-

mation

-

Follow steps 1 to 3 of (I).

4.Confirm that the frequency Offset is < ± 50 kHz.

IC1, 

C802~C806, 
C808~C814, 
C819~C820, 

C822, 

C825~C827, 

C834, 

C859~C864, 

L801~L804, 

DA801, 

R801~R808

(L)* Frequency Drift Confir-

mation

-

Follow steps 1 to 3 of (I).

4.Confirm that the frequency Drift is < ± 35 kHz/ms.

IC1, 

C802~C806, 
C808~C814, 
C819~C820, 

C822, 

C825~C827, 

C834, 

C859~C864, 

L801~L804, 

DA801, 

R801~R808

(M)*

Sensitivity Receiver 

Confirmation

-

Follow steps 1 to 3 of (I).

4.Set DECT tester power to -88 dBm.
5.Confirm that the BER is < 1000 ppm.

IC1, 

C802~C806, 
C808~C814, 
C819~C820, 

C822, 

C825~C827, 

C834, 

C859~C864, 

L801~L804, 

DA801, 

R801~R808

(N)* Power RAMP Confirma-

tion

-

Follow steps 1 to 3 of (I).

4.Confirm that Power RAMP is matching.

IC1, 

C802~C806, 
C808~C814, 
C819~C820, 

C822, 

C825~C827, 

C834, 

C859~C864, 

L801~L804, 

DA801, 

R801~R808

(O) Audio Check and Confir-

mation

-

1. Link to BASE which is connected to Line Simulator.
2. Set line voltage to 48 V and line current to 40 mA.
3. Input -45 dBm (600

Ω)/1KHz to MIC and measure Line output level.

4. Confirm that the level is -7 dBm ± 2 dBm and that the distortion level is < 5% at

TEL Line (600 

Ω Load).

5. Input -20 dBm (600

Ω)/1KHz to Line I/F and measure Receiving level at REV+

and REV-.

6. Confirm that the level is -19 dBm ± 2 dBm and that the distortion level is < 5%

at Receiver. (vol = 2)

IC1, C12, C96, 

C97, R215, 

R27, RA4, 

C11, C13, 

R28, D3, D4, 

MIC, L9, L10, 

L11, R23, R29

(P) SP phone Audio Check 

and Confirmation

-

1. Link to Base which is connected to Line Simulator.
2. Set line voltage to 48 V and line current to 40 mA.
3. Set the handset off-hook using SP-Phone key.
4. Input -25 dBm (600

Ω)/1KHz to Line I/F and measure Receiving level at SP+

and SP-.

5. Confirm that the level is -4.5 dBm ± 2 dBm and that the distortion level is < 5%.

(vol = 3)

IC1, C12, C73, 

D13, D14, L10, 
L11, R23, R29, 

MIC, C11, 

C13, RA4, 

R27, R28, 
C96, C97, 

R215, C72

(Q) Charge Pump 3.0V Sup-

ply Confirmation

CP3.0V

1. Confirm that the voltage between testpoint CP2.5V and GND is 2.5V -0.1/

+0.3V.

C52, C53, C49

(R) Charge Pump 4.0V Sup-

ply Confirmation

CP4.0V

1. Confirm that the voltage between testpoint CP4.0V and GND is 4.0V -0.2V.

C50, C51

Items

Check 

Point

Procedure

Check or 

Replace Parts

43

When the customer’s telephone line corresponds to the following conditions, and the transmission signal of SP-Phone is inter-
rupted, performing the next set up to a cordless handset will improve it to some extent.
Conditions

1. When customer’s line has less line loss.

ex.) The customer is using optical fiber, ISDN terminal adaptor, or PBX.
In this case, receiving signal is strong and it may affect transmission signal.

2. When the other party is talking from noisy place.

ex.) The other party is using cellular phone. The background noise is very loud.
In this case, the noise from the other party (i.e. surrounding noise) may affect transmission signal.

• Change the handset address of EEPROM (0129) from 00 to 01 by Engineering Mode.

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