Sony XPeria ST25i User manual

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.
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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
Attenuation
ST25i
ST25a
Band
Channel
Rx
Tx
Rx
Tx
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
Rx
Tx
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