Sony XPeria ST25i Bedienungsanleitung

1265-3289 Rev 2



Sony Mobile Communications AB – Company Internal

Go/No Go Test

- electrical -

ST25i / ST25a

Test and Calibration Repair Instruction Electrical/

1265-3289 Rev 2



Sony Mobile Communications AB – Company Internal

2(8)

CONTENTS

1Go/No Go Testing...........................................................................3

1.1 Antenna Coupler ..................................................................................3

1.2 Direct Line ............................................................................................4

1.3 Attenuation Factors .............................................................................6

1.3.1 Loss Values – Antenna Coupler.................................................................6

1.3.2 Loss Values – Direct Line ...........................................................................7

2Revision History.............................................................................8

This product is ONLY implemented in SERP II

Test and Calibration Repair Instruction Electrical/

1265-3289 Rev 2



Sony Mobile Communications AB – Company Internal

3(8)

1 Go/No Go Testing

This Go/No Go testing has to be carried out in tow ways, with an:

•Antenna Coupler.

•Cable in shield box

For more information on Antenna Coupler and Cable in shield box testing, refer to

1220-1336: Generic Repair Manual – electrical, section ‘Setup Go/NoGo Test’!

For part no’s on the equipment below, refer to the ‘Tools Catalogue/Matrix’!

1.1 Antenna Coupler

The following equipment has to be used:

•Rohde & Schwartz RF Shield Package

- Rohde & Schwartz RF Shield Box

- Rohde & Schwartz RF Coupler

- Grid Positioning Holder

•RF Test Cable Flexible 1M

•RF Adapter for RF Shield Box

•USIM Card, instrument specific

GSM-850/900/1800/1900

WCDMA-850/900/1900/2100

Put the grid positioning holder with its reference point in

position G13 and place the phone as shown in the adjacent

picture.

A FEDB C G H I NMLJ K O P Q R

Test and Calibration Repair Instruction Electrical/

1265-3289 Rev 2



Sony Mobile Communications AB – Company Internal

4(8)

Go/NoGo Testing

1.2 Direct Line

The following equipment has to be used:

•RF Test Cable Flexible 1M

•RF Probe

•USIM Card, instrument specific

Connect the RF Probe as shown in the adjacent picture.

To get access to the RF connector on the PBA, refer to

1263-4086: ST25 Mechanical Working Instructions,

Chapter 3.1!

Test and Calibration Repair Instruction Electrical/

1265-3289 Rev 2



Sony Mobile Communications AB – Company Internal

5(8)

Go/NoGo Testing

Follow the directions stated in ‘Go/NoGo Test Script Parameters’ to be found in

1220-1336: Generic Repair Manual – electrical, together with the ‘Attenuation Factors’ below!

This phone is available as two versions, ST25i and ST25a, including the following bands:

ST25i:

GSM-850/900/1800/1900

WCDMA-900/2100

ST25a:

GSM-850/900/1800/1900

WCDMA-850/1900/2100

Test and Calibration Repair Instruction Electrical/

1265-3289 Rev 2



Sony Mobile Communications AB – Company Internal

6(8)

Go/NoGo Testing

1.3 Attenuation Factors

The attenuation values listed below in 1.2.1 are valid only when the equipment listed on the

previous pages is being used!

1.3.1 Loss Values – Antenna Coupler

Attenuation

ST25i

ST25a

Band

Channel

GSM 850 Low 11.50 10.15 3.00 9.97

Mid 7.00 9.09 4.00 9.00

High 8.00 7.85 5.00 7.73

GSM 900 Low 12.00 5.84 5.50 5.40

Mid 13.00 6.25 11.00 6.18

High 14.00 6.83 11.00 7.18

GSM 1800 Low 8.50 10.94 5.50 14.22

Mid 8.00 9.73 9.00 11.37

High 8.00 8.28 10.00 10.97

GSM 1900 Low 5.00 6.39 9.50 8.79

Mid 7.00 6.25 9.00 8.79

High 9.50 6.51 9.00 8.11

WCDMA 850 Low

6.00

7.92

Mid - - 4.50 7.48

High

6.00

6.36

WCDMA 900 Low 11.50 5.36 - -

Mid 12.50 5.85 - -

High 13.00 5.77 - -

WCDMA 1900 Low

8.50

8.32

Mid

9.00

8.29

High - - 10.00 7.88

WCDMA 2100 Low 16.00 5.41 14.50 7.32

Mid 15.00 5.62 15.00 7.69

High 14.50 7.27 16.00 8.61

Test and Calibration Repair Instruction Electrical/

1265-3289 Rev 2



Sony Mobile Communications AB – Company Internal

7(8)

Go/NoGo Testing: Attenuation Factors

1.3.2 Loss Values – Direct Line

Attenuation

Band

Channel

GSM 850 All 1.0 1.0

GSM 900 All 1.0 1.0

GSM 1800 All 2.3 2.3

GSM 1900 All 2.3 2.3

WCDMA 850 All 2.5 2.5

WCDMA 900 All 2.5 2.5

WCDMA 1900 All 1.3 1.3

WCDMA 2100 All 1.3 1.3

Test and Calibration Repair Instruction Electrical/

1265-3289 Rev 2



Sony Mobile Communications AB – Company Internal

8(8)

2 Revision History

Rev.

Date

Changes / Comments

1 2012-Apr-23 Initial release

2 2012-May-29 ST25a added

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