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17

1.Set PN code (refer to Frequency Table) by PN code SW below.
   When you think that you want to set Test Mode on CH8, you have to set PN code 3.
2.Power on
3.Connect to other Equipments.

    CN3 and CN4 compose down convertor.
   (CN3 Output Signal Frequency) = (CN4 Input Signal Frequency) - 1750MHz

< for example >
CN4

CN5

CN3

   2406.160 MHz - 1750.0 MHz = 656.160 MHz
         (CH1)

PQZZTG200RF1

656.16 MHz

Marconi

TX TEST MODE

TG200 Series
PN Code

Base

Handset

PN Code SW

CH

PN1
PN2

1

L

H

904.56 MHz (CH1)

; BASE UNIT connection

; HANDSET connection

Marconi Tester

To Base RX

To Base RX

656.16 MHz (CH1)

To Handset RX

CN1

CN2

PN

CN3

1750MHz

~

CN4

PN Code

SW

From Base
2.4G TX

To Handset
2.4G RX

TG2550 Series
PN Code

Marconi

RX TEST MODE

Marconi

2

H

L

3

H

H

4

L

L

1

2 3

4

5

1

2

3

4

5

RX TEST MODE

18

CH

B ase U ni

t Tx Frequency

PN

B ase U ni

t R x Frequency

1

2406.16

1

904.56

2

2406.40

2

904.68

3

2406.64

3

904.80

4

2406.88

4

904.92

5

2407.12

5

905.04

6

2423.84

1

909.56

7

2424.08

2

909.68

8

2424.32

3

909.80

9

2424.56

4

909.92

10

2424.80

5

910.04

11

2441.52

1

914.56

12

2441.76

2

914.68

13

2442.00

3

914.80

14

2442.24

4

914.92

15

2442.48

5

915.04

16

2459.20

1

919.56

17

2459.44

2

919.68

18

2459.68

3

919.80

19

2459.92

4

919.92

20

2460.16

5

920.24

21

2476.88

1

924.56

22

2477.12

2

924.68

23

2477.36

3

924.80

24

2477.60

4

924.92

25

2477.84

5

925.04

In the test mode the default of PN is "1" in all channels. Without pressing "HOLD/RINGER" key on base unit.
(if PN is not set), PN of jig is measurable in all channels as it is.

19

(Handset)
1.Supply DC 3.9V.
2.Press "TALK" key.
3.While flash LED, press "5" , "8" , "0" , at the same tone.
4.Press "INTERCOM" Button.
5.Press channel No.2 digit. (CH2 

→ 

→ 

→ 

→ 

→ 

"0" and "2" .)

6.Press "#" key. (SS-Restart "on")
7.Press "TALK" key.

(Base Unit)
1.Connect AC adaptor, while pressing "Volume up", "Volume down", and "LOCATOR / INTERCOM" key at the same time.
2.Press "Locator / INTERCOM" key.
3.(Defalut channel is set CH1.)
4.Press "#" key. (SS-Restart "on")
5.Press "LCATOR / INTERCOM" key. Test Mode setting finish.

(Measurement Items)

   TX POWER                SS Mode

Tx
1.Standard Frequency

High

off

    (Carrier Frequency)
2.Transmit Power

High

on

3.Modulation Level

High

off

Rx
1.All Items

High

on

Default setting value

in the test mode

Switching

Mode

Handset

Base

Handset

Base

TX POWER

PN

SS

SS-Restart

Channel

Volume

Low

1

on

off

1

Middle

Volume

+10ch
+1ch

off

1

on

off

1

"FLASH" key

1   2   3   4   5

"8" key

Low     High

"0" key

on    off

"#" key

on    off

"FLASH" key

off    on

"REDIAL" key

on    off

"#" key

on    off

20

This procedure will enable the technician to make adjustments to the KX-TG2570B HANDSET and BASE UNIT.

This procedure has 2 sections. The first section instructs the technician on how to align the HANDSET. We recommend aligning
the  HANDSET first, since you will need the HANDSET to align the BASE UNIT. The second section aligns the BASE UNIT. You
can use either section separately, or together to align the entire cordless phone unit.

At the beginning of each section, you will find a preparation procedure instructing you on how to prepare the unit to the point of
placing the unit in TEST mode. Please follow this procedure to insure proper alignment.

Each section's procedure consists of Adjustment Items adjusting one specific variable hardware component.
Each Item lists the equipment needed, how to connect and setup the equipment, how to make the adjustment, and how to verify
the adjustment if necessary.

Before the actual procedure, you will find a procedure detailing how to place that part in TEST mode. You will have to perform
this procedure before each individual Adjustment Item.

Once aligned, please remove all equipment connections and solder points, and reassemble the unit. As a final check, power up
the phone and check for HANDSET linking with the BASE UNIT.

1.

Marconi : Model 2945A

  2.    Jig (PQZZTG200RF1)
  3.

Oscilloscope, single or dual channel : Panasonic VP-5512P100 or compatible.

  4.    Telephone Analyzer : B&K Model 1050 or compatible.
  5.    DC Power Supply, capable of supply 3.9V DC at 850mA NOTE : only needed if Telephone Analyzer does not have

DC VOLTS output available.

  6.    High Frequency Attenuator, 10dB or greater.
  7.    Corded Telephone.

8.

High Frequency Cable : RG-188A/U.

  9.    Audio Cable : BNC end to alligator clip end.
10.

HOZAN D-280 ceramic screw driver.

11.

Isolation Capacitors, quantity of 2, part No. ECEA1HU100.

12.

Soldering Iron, solder, and various tools.

1) Warm up the Marconi Radio Tester, for at least 30 minutes to allow internal crystal
    oscillation to become stable.
2) Please refer to figures in page 21 for base unit wire connection.
3) Connect the AC Adaptor (PQLV10Z) , while pressing "Volume up", "Volume down", and "LOCATOR / INTERCOM" key
     at the same time.
4) Press "LOCATOR / INTERCOM" button.
5) Press "

" key to TP_TEST2-TPS4 on.

6) Press "LOCATOR / INTERCOM" button.

1. Solder RF cable to 2.4G Tx ANT and RF GND.
2. Press "REDIAL" button and set SS Mode to be OFF.
    TP Tx ANA pull up wire close.
3. Press "FLASH" button and set to TX Power ON mode.
4. Set Marconi:    Tx Test  : Select "Tx Test" Mode
5. Input Carrier Frequency of Base Unit. (CH1)

Freq.=(2406.160 MHz) - 1750MHz = 656.160MHz (Don't press "Auto Tune" key.

    After inputting the CH1 frequency, confirm the it's frequency difference.)
6. Check TX Frequency as shown on CRT. This should be 656.160 MHz ± 3kHz, (offset 

≤

 ±3kHz).

7. Adjust value of VC790 so that it is 656.160 MHz ± 3kHz (offset 

≤

 ±3kHz).

    When VC790 cannot be adjusted at this value, replace RF unit.