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13

Please follow the items below when BBIC or EEPROM is replaced.

After the measuring, suck up the solder of TP.
*:  Connections is required beforehand.
The connections of adjustment equipment are as shown in Adjustment Standard (Handset) (P.17).

(K)*

Modulation Check

-

ANTI_TP

Follow steps 1 to 6 of (J).

7.Confirm that the B-Field Modulation is -350 ± 50/ +350± 50 kHz/div &
Modulated width   610 kHz using data type Fig31.

IC7 

(L)* Frequency Offset Check

-

ANTI_TP

Follow steps 1 to 6 of (J).

7.Confirm that the frequency offset is < ± 20 kHz.

IC7 

(M)*

Frequency Drift 

Confirmation

-

ANTI_TP

Follow steps 1 to 6 of (J).

7.Confirm that the frequency drift is < ± 20 kHz/ms.

IC7 

(N)*

Sensitivity Receiver 

Confirmation

-

ANTI_TP

Follow steps 1 to 6 of (J).

7.Set DECT tester power to -90 dBm.
8.Confirm that the BER is < 1000 ppm.

IC7,

C802~C804,
C822, C826,
C851, C853,

DA801, DA802,

R806, R807,

R106, R109 

(O)*

Timing Confirmation

-

ANTI_TP

Follow steps 1 to 6 of (J).

7.Confirm that the Timing accuracy is

• ± 5.0 ppm (When adjust the frequency of CLK in item (G)).
• ± 15 ppm (When do not adjust the frequency of CLK in item (G)).

IC7, X1 

(P)*

Power RAMP 

Confirmation

-

Follow steps 1 to 6 of (J).

7.Confirm that Power RAMP is matching.

IC7 

(Q)

Audio Check

-

1. Link with Handset which is connected to Line Simulator.
2. Set line voltage to 48 V and line current to 50 mA.
3. Input -45 dBm(600 

)/1 kHz to MIC of Handset. Measure the Level at Line I/F

and distortion level.

4. Confirm that the level is -2.0 dBm and that the distortion level is <5%    at TEL

Line (600 

 Load).

5. Input -20 dBm(600 

)/1 kHz to Line I/F. Measure the Level at Receiver of

Handset and distortion level (Receive volume set to second position from
minimum).

6. Confirm that the level is -24 dBm and that the distortion level is <5%    at

Receiver (34

 Load).

IC7, SA1, P1, 

D3, Q3, Q4,

R14, R15, R16,

R17, D21, Q5,

R19, R20, C14,

C56, R117,
R116, R29,

C22

(R)

Charging Check

-

1. Connect Charge Contact 12 

/2 W resistor between charge+ and charge-.

2. Measure and confirm voltage across the resistor is 3.9 V ± 0.4 V.

R55, R56, D22,

C623

(S)

2.4V Supply 

Confirmation VDD2 

VDD2

1. Confirm that the voltage between test point VDD2 and GND is 2.5V ± 0.2V.

IC7, Q9, C617, 

R71

Items

Check 

Point

Procedure

Check or 

Replace Parts

Items

Check 

Point

Procedure

Check or 

Replace Parts

(A)* 1.8 V Supply Adjustment

VDD1

1. Confirm that the voltage between test point VDD1 and GND is 1.8 V ± 0.02 V.
2. Execute the command “VDD”, then check the current value.
3. Adjust the 1.8V voltage of VDD1 executing command “VDD XX“(XX is the

value).

IC1, Q2, C44, 

C344, C40, 

C45, F1, C10, 

C2, C34, R7

(B)*

BBIC Confirmation

-

1. BBIC Confirmation (Execute the command “getchk”).
2. Confirm the returned checksum value.

Connection of checksum value and program number is shown below.

IC1, X1, RA61, 

R64, R66

(C)* EEP-ROM Confirmation

-

1. EEP-ROM Confirmation (Execute the command "sendchar EPV").
2. Confirm the returned Value. (Value for reference is written at "EEPROM C/

SUM” in Software_Version_Table.xls).

IC1, IC3, 

RA40, C172

(D) Charge Control Check & 

Charge Current Monitor 

Check

-

1. Apply 5.0 V between CHG(+) and CHG(-) with DC power supply and set

current limit to 150 mA.
Confirm the indication of “charging” on LCD.

2. Confirm that the current limit LED of DC power supply is ON/OFF.

Confirm it after waiting over 1 minute at least.

(If charge control cannot be confirmed by this procedure, please use battery to
handset power supply and try again.)

IC1, Q4 Q9, 
Q5, Q6, R9, 

R4, R5, R33, 

C19, F1, C1, 

R30, R31, R8, 

R45

checksum value

program number

ex.)

2A92

DCJ2RN

14

(E)* Charge Detection (OFF) 

Check

-

1. Stop supplying 5.0 V to CHG (+) and CHG (-).
2. Confirm the indication of “charging” has been cleared.

IC1, Q4 Q9, 
Q5, Q6, R9, 

R4, R5, R33, 

C19, F1, C1, 

R30, R31, R8, 

R45

(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 = 0009(Low Voltage) write “YY”
Execute the command “wreeprom 00 09 01 YY”.
EEPROM = 000A(No Voltage) write “YY -C”
Execute the command “wreeprom 00 0A 01 ZZ”.

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 

Confirmation

-

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 ± 20 Hz).
4. If the frequency is not 10.368 MHz ± 20 Hz, adjust the frequency of CLK

executing 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" "5" "7" "#"clears the registration.
Register to it on Base Unit after measurement. 

IC1, X1, C47

 

(I)*

Transmitted Power 

Confirmation

-

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~C803, 
C805, C806, 

C810, L809, 

C811, C814,  

R806, C825, 

DA801

(J)* Modulation Check and 

Adjustment

-

Follow steps 1 to 3 of (K).

4.Confirm that the B-Field Modulation is -350 ± 50/+350 ± 50 kHz/div &
Modulated width   610 kHz using data type Fig 31.

IC1

(K)*

Frequency Offset 

Confirmation

-

Follow steps 1 to 3 of (I).

4.Confirm that the frequency Offset is < ± 20 kHz.

IC1

(L)*

Frequency Drift 

Confirmation

-

Follow steps 1 to 3 of (I).

4.Confirm that the frequency Drift is < ± 20 kHz/ms.

IC1

(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~C804, 
C826, C837, 
C820, C822,  

DA801, R807

(N)*

Power RAMP 

Confirmation

-

Follow steps 1 to 3 of (I).

4.Confirm that Power RAMP is matching.

IC1

Items

Check 

Point

Procedure

Check or 

Replace Parts

15

(O)

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 50 mA.
3. Input -45 dBm(600 

)/1kHz to MIC of Handset. Measure the Level at Line I/F

and distortion level.

4. Confirm that the level is -2.0 dBm and that the distortion level is <5%    at TEL

Line (600 

 Load).

5. Input -20 dBm(600 

)/1 kHz to Line I/F. Measure the Level at Receiver of

Handset and distortion level (Receive volume set to second position from
minimum).

6. Confirm that the level is -24 dBm and that the distortion level is <5%    at

Receiver (34 

 Load).

IC1, C12, C96, 

C97, R215, 

R27, RA4, 

C11, C13, 

R28, MIC

(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 50 mA.
3. Set the handset off-hook using SP-Phone key.
4. Input -30 dBm(600 

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

and SP-.

5. Confirm that the level is -8.0 dBm and that the distortion level is < 5%. 

(Val = Max at SP (8

 Load))

IC1, C12, C73, 

D13, D14, 

MIC, C11, 

C13, RA4, 

R27, R28, 
C96, C97, 

R215, C72, 

C73

(Q)

Charge Pump 3.0V 

Supply Confirmation

CP3.0V

1. Confirm that the voltage between testpoint CP3.0V and GND is 3.0V-0.1/+0.3V.

C704, C53, 

C54

(R)

Charge Pump CPV2 

3.0V Supply 

Confirmation

CPV2

1. Confirm that the voltage between testpoint CPV2 and GND is 3.0V ±0.3V.

(Power is supplied when LED in on)

C52, C55 

(S)

CP2.8V

Confirmation

CP2.8V

1. Confirm that the voltage between testpoint CPV2.8V and GND is 4.0V ±0.3V.

D3, C51 

Items

Check 

Point

Procedure

Check or 

Replace Parts

16

When connecting the simulator equipment for checking, please refer to below.

(A) - (S) is referred to Check Point (Base Unit) (P.12)

C22

C23

C29

R605

R607

R608

R609

C38

R610

R612

C42

TP16-sub

C43

GND_C

C53

C56

C57

DCM

DCP

C65

C602

C75

C88

C623

C1

C2

C3

C4

C5

C6

C7

C8

URX

STM

F1

LINE_DC

ANT1_TP

UTX

JTAG

Q352

Q354

D15

Q361

Q362

D16

Q363

R116

R117

ANT2_TP

VDD1

VDD2

VDD3

VDD4

VDD5

C305

L1R

R10

L1T

R353

R14

R15

R16

R17

R358

R19

R359

R360

TP9

R361

R362

R23

R363

R364

R24

R25

R365

R366

R367

R368

Q4

R369

Q5

R29

C141

R34

R3

R4

R5

R6

R7

R8

R9

R40

R42

R43

TP10

C155

TP15

TP16

C358

C166

ANT_1

ANT_2

Q602

R76

R77

R78

CKM

DC_IN

RA80

J101

C12

C14

GND

TP15-sub

DC Power

5.5V

50

Terminal

Frequency

Counter

GND

(G)

DECT Tester

CTS60

ANT

GND

(J)(K)(L)(M)(N)
(O)(P)

12

2W

Digital

(R)

(B)
(E)(F)(G)(H)(I)
(J)(S)

Volt Meter

PC

U-ART

TX

GND

CHG-

CHG+

RX