Manual serviço do celular ASUS zenfone ZE550KL

1. ASUS ZE500KL
RF Hardware Trouble Shooting Guide
Inspiring Innovation．Persistent Perfection
PMD-HW2

2. Outline
(*) Debug Tool Required
• Repair and Test Environment (*)
• RF Block Diagram
• RF function Repair Guide (*)
– GSM Quad-bands Block Diagram
– GSM EGSM and GSM850
– GSM DCS and PCS
– WCDMA Quad-bands Block Diagram
– WCDMA Band1/Band2/Band5/Band8
– LTE Quad-bands Block Diagram
– LTE Band3/Band7/Band8/Band20/Band28
– LTE Div. Rx Block Diagram
– LTE Div. Rx Band3/Band7/Band8/Band20/Band28
• RF Test Trouble Shooting
– 2G RF Test
– 3G RF Test
– 4G RF Test
• GPS Repair Guide
• BT/WiFi Repair Guide
Inspiring Innovation．Persistent Perfection
• Repair and Test Environment (*)
• RF Block Diagram
• RF function Repair Guide (*)
– GSM Quad-bands Block Diagram
– GSM EGSM and GSM850
– GSM DCS and PCS
– WCDMA Quad-bands Block Diagram
– WCDMA Band1/Band2/Band5/Band8
– LTE Quad-bands Block Diagram
– LTE Band3/Band7/Band8/Band20/Band28
– LTE Div. Rx Block Diagram
– LTE Div. Rx Band3/Band7/Band8/Band20/Band28
• RF Test Trouble Shooting
– 2G RF Test
– 3G RF Test
– 4G RF Test
• GPS Repair Guide
• BT/WiFi Repair Guide

3. Outline
(*) Debug Tool Required
• Repair and Test Environment (*)
• RF Block Diagram
• RF function Repair Guide (*)
– GSM Quad-bands Block Diagram
– GSM EGSM and GSM850
– GSM DCS and PCS
– WCDMA Quad-bands Block Diagram
– WCDMA Band1/Band2/Band5/Band8
– LTE Quad-bands Block Diagram
– LTE Band3/Band7/Band8/Band20/Band28
– LTE Div. Rx Block Diagram
– LTE Div. Rx Band3/Band7/Band8/Band20/Band28
• RF Test Trouble Shooting
– 2G RF Test
– 3G RF Test
– 4G RF Test
• GPS Repair Guide
• BT/WiFi Repair Guide
Inspiring Innovation．Persistent Perfection
• Repair and Test Environment (*)
• RF Block Diagram
• RF function Repair Guide (*)
– GSM Quad-bands Block Diagram
– GSM EGSM and GSM850
– GSM DCS and PCS
– WCDMA Quad-bands Block Diagram
– WCDMA Band1/Band2/Band5/Band8
– LTE Quad-bands Block Diagram
– LTE Band3/Band7/Band8/Band20/Band28
– LTE Div. Rx Block Diagram
– LTE Div. Rx Band3/Band7/Band8/Band20/Band28
• RF Test Trouble Shooting
– 2G RF Test
– 3G RF Test
– 4G RF Test
• GPS Repair Guide
• BT/WiFi Repair Guide

4. Repair and Test Environment
Inspiring Innovation．Persistent Perfection
DUT
(*)

5. Outline
(*) Debug Tool Required
• Repair and Test Environment (*)
• RF Block Diagram
• RF Calibration Repair Guide (*)
– GSM Quad-bands Block Diagram
– GSM EGSM and GSM850
– GSM DCS and PCS
– WCDMA Quad-bands Block Diagram
– WCDMA Band1/Band2/Band5/Band8
– LTE Quad-bands Block Diagram
– LTE Band3/Band7/Band8/Band20/Band28
– LTE Div. Rx Block Diagram
– LTE Div. Rx Band3/Band7/Band8/Band20/Band28
• RF Test Trouble Shooting
– 2G RF Test
– 3G RF Test
– 4G RF Test
• GPS Repair Guide
• BT/WiFi Repair Guide
Inspiring Innovation．Persistent Perfection
• Repair and Test Environment (*)
• RF Block Diagram
• RF Calibration Repair Guide (*)
– GSM Quad-bands Block Diagram
– GSM EGSM and GSM850
– GSM DCS and PCS
– WCDMA Quad-bands Block Diagram
– WCDMA Band1/Band2/Band5/Band8
– LTE Quad-bands Block Diagram
– LTE Band3/Band7/Band8/Band20/Band28
– LTE Div. Rx Block Diagram
– LTE Div. Rx Band3/Band7/Band8/Band20/Band28
• RF Test Trouble Shooting
– 2G RF Test
– 3G RF Test
– 4G RF Test
• GPS Repair Guide
• BT/WiFi Repair Guide

6. RF Block Diagram
Transceiver
&
Receive Path
Transceiver
&
Receive Path
GSM Tx
Quad-Band
GSM Tx
Quad-Band
WCDMA
Band1/2/5/8
WCDMA
Band1/2/5/8
Ant. SW
Ant. SW
GSM Rx
GSM Rx
Main
Antenna
LTE
Band3/7/8/20/28
LTE
Band3/7/8/20/28
Inspiring Innovation．Persistent Perfection
Transceiver
&
Receive Path
Transceiver
&
Receive Path
Ant. SW
BT/WiFi
FM
BT/WiFi
FM
BT/WiFi
Antenna
GPS
GPS
GPS
Antenna
LTE
Band3/7/8/20/28
LTE
Band3/7/8/20/28
LTE DRx
Band3/7/8/20/28
LTE DRx
Band3/7/8/20/28
Div.
Antenna Ant. SW
Ant. SW

7. Sku table
TW&JP sku
TW&JP sku
GSM Qual Band
WCDMA Qual Band
FDD-LTE B1/B2/B3/B5/B6/B8/B9/B18/B19/B28
WW sku
WW sku
GSM Qual Band
WCDMA Qual Band
FDD-LTE B1/B2/B3/B5/B7/B8/B20
Inspiring Innovation．Persistent Perfection
WW sku
WW sku
GSM Qual Band
WCDMA Qual Band
FDD-LTE B1/B2/B3/B5/B7/B8/B20
CUCC sku
CUCC sku
GSM Qual Band
WCDMA Qual Band
FDD-LTE B1/B3
TDD-LTE B38/B40/B41

8. ZE500KL RF Areas Top Side
FM
Inspiring Innovation．Persistent Perfection
RF

9. ZE500KL RF Areas Bottom Side
4G Div.
Ant. Spring
WiFi/BT/GPS
WiFi/BT GPS
Ant. Spring
Inspiring Innovation．Persistent Perfection
WiFi/BT/GPS

10. TW sku key components locations(Top)
Ant. Switch
Band Switch
Transceiver
Div B2
B3
B1
B5
B8
B28
B1/B2/B3/B4/B34
/B39/GSM_HB
B5/B8/B20/
B26/GSM_LB
Inspiring Innovation．Persistent Perfection
PA
Duplexer
SAW
MMPA
B28
Main
B1
B3
B2
B8
B5
B28a
B28b
B2 & B3
TX B28a & B28b
RX B28a & B28b

11. WW sku key components locations(Top)
Ant. Switch
Band Switch
Transceiver
Div B2
B3
B1
B5
B7
B8
B20
B5/B8/B20/
B26/GSM_LB
B1/B2/B3/B4/B34
/B39/GSM_HB
Inspiring Innovation．Persistent Perfection
PA
Duplexer
SAW
MMPA
B7
Main
B1
B3
B2
B8
B7
B5
B20
B2 & B3

12. CUCC key components locations(Top)
Ant. Switch
Band Switch
Transceiver
Div
B3
B1
B38
B40
B5/B8/B20/
B26/GSM_LB
B1/B2/B3/B4/B34
/B39/GSM_HB
Inspiring Innovation．Persistent Perfection
PA
Duplexer
SAW
MMPA
Main
B38
B40
B41
B1
DCS
B2
B8
B40
B38
B41
B5
B2 & B3

13. Key components locations(Bot)
WCN
3620
Inspiring Innovation．Persistent Perfection
LNA
Diplexer
SAW

14. Outline
(*) Debug Tool Required
• Repair and Test Environment (*)
• RF Block Diagram
• RF function Repair Guide (*)
– GSM Quad-bands Block Diagram
– GSM EGSM and GSM850
– GSM DCS and PCS
– WCDMA Quad-bands Block Diagram
– WCDMA Band1/Band2/Band5/Band8
– LTE Quad-bands Block Diagram
– LTE Main Tx/Rx
– LTE Div. Rx Block Diagram
– LTE Div. Rx
• RF Test Trouble Shooting
– 2G RF Test
– 3G RF Test
– 4G RF Test
• GPS /BT/WiFi Repair Guide
Inspiring Innovation．Persistent Perfection
• Repair and Test Environment (*)
• RF Block Diagram
• RF function Repair Guide (*)
– GSM Quad-bands Block Diagram
– GSM EGSM and GSM850
– GSM DCS and PCS
– WCDMA Quad-bands Block Diagram
– WCDMA Band1/Band2/Band5/Band8
– LTE Quad-bands Block Diagram
– LTE Main Tx/Rx
– LTE Div. Rx Block Diagram
– LTE Div. Rx
• RF Test Trouble Shooting
– 2G RF Test
– 3G RF Test
– 4G RF Test
• GPS /BT/WiFi Repair Guide

15. Main Ant.
WTR-4905
(Transceiver)
RFU4501
GSM Block Diagram
Rx SAW
Rx SAW
SKY13488
(ASM)
RFU4701
Inspiring Innovation．Persistent Perfection
WTR-4905
(Transceiver)
RFU4501
WTR-4905
(Transceiver)
RFU4501
MSM8916
PM8916
(PMIC)
SKY77633-11
RFU4813
SKY77633-11
RFU4813
Rx SAW
Rx SAW
QFE2101
(RF PMIC)
SKY13488
(ASM)
RFU4701
SKY13488
(ASM)
RFU4701

16. Use the same path
Transceiver
&
Receive Path
Transceiver
&
Receive Path
GSM Tx
Quad-Band
GSM Tx
Quad-Band
WCDMA
Band1/2/5/8
WCDMA
Band1/2/5/8
Ant. SW
Ant. SW
GSM Rx
GSM Rx
Main
Antenna
LTE
Band3/7/8/20/28
LTE
Band3/7/8/20/28
Inspiring Innovation．Persistent Perfection
3. DRX : B7/B38/B41
Transceiver
&
Receive Path
Transceiver
&
Receive Path
Ant. SW
LTE
Band3/7/8/20/28
LTE
Band3/7/8/20/28
LTE DRx
Band3/7/8/20/28
LTE DRx
Band3/7/8/20/28
Div.
Antenna Ant. SW
Ant. SW
1. TX : B38/B41
2G high band
2G Low band
2. PRX : B2/PCS
B3/DCS
B5/GSM850
B7/B38/B41
B8/EGSM900

17. 1. RFU4501: Transceiver
WTR-4905
2. RFU4813: Power Amp.
SKY77633-11
3. RFU4701: Main Ant. Switch
SKY13488
4. RFU4811 : Band Switch
5. RFU4812 : Band Switch
2G TX
Top
5
1
4
2
Inspiring Innovation．Persistent Perfection
1. RFU4501: Transceiver
WTR-4905
2. RFU4813: Power Amp.
SKY77633-11
3. RFU4701: Main Ant. Switch
SKY13488
4. RFU4811 : Band Switch
5. RFU4812 : Band Switch
HB Tx comp.
Serial IC
LB Tx comp. 3
HB
2
LB

18. WCDMA/LTE B1 TX/RX
Top
5
1
2
1. RFU4501: Transceiver
WTR-4905
2. RFU4813: Power Amp.
SKY77633-11
3. RFU4701: Main Ant. Switch
SKY13488
4. RFU4801 : B1 Duplexer
5. RFU4811 : Band Switch
Inspiring Innovation．Persistent Perfection
Tx comp.
Serial IC
Rx comp. 3
2
4
Tx/Rx comp.
1. RFU4501: Transceiver
WTR-4905
2. RFU4813: Power Amp.
SKY77633-11
3. RFU4701: Main Ant. Switch
SKY13488
4. RFU4801 : B1 Duplexer
5. RFU4811 : Band Switch

19. B2---------------------TX/RX
PCS ------------------- RX
Top
5
2
1
1. RFU4501: Transceiver
WTR-4905
2. RFU4813: Power Amp.
SKY77633-11
3. RFU4701: Main Ant. Switch
SKY13488
4. RFU4805 : B2 Duplexer
5. RFU4811 : Band Switch
6. RFU4809 : Band Switch
Inspiring Innovation．Persistent Perfection
Tx comp.
Serial IC
Rx comp.
3
4
Tx/Rx comp.
2
6
1. RFU4501: Transceiver
WTR-4905
2. RFU4813: Power Amp.
SKY77633-11
3. RFU4701: Main Ant. Switch
SKY13488
4. RFU4805 : B2 Duplexer
5. RFU4811 : Band Switch
6. RFU4809 : Band Switch

20. B3/B9---------------- TX/RX
DCS ----------------- RX
Top
5
1
2
1. RFU4501: Transceiver
WTR-4905
2. RFU4813: Power Amp.
SKY77633-11
3. RFU4701: Main Ant. Switch
SKY13488
4. RFU4802 : B3 Duplexer
5. RFU4811 : Band Switch
6. RFU4809 : Band Switch
Inspiring Innovation．Persistent Perfection
Tx comp.
Serial IC
Rx comp.
3
Tx/Rx comp.
2
4
6
1. RFU4501: Transceiver
WTR-4905
2. RFU4813: Power Amp.
SKY77633-11
3. RFU4701: Main Ant. Switch
SKY13488
4. RFU4802 : B3 Duplexer
5. RFU4811 : Band Switch
6. RFU4809 : Band Switch

21. B5/6/18/19---------- TX/RX
GSM850 ----------------- RX
Top
5
2
1
1. RFU4501: Transceiver
WTR-4905
2. RFU4813: Power Amp.
SKY77633-11
3. RFU4701: Main Ant. Switch
SKY13488
4. RFU4803 : B5 Duplexer
5. RFU4812 : Band Switch
Inspiring Innovation．Persistent Perfection
Tx comp.
Serial IC
Rx comp.
Tx/Rx comp.
3
2
4
1. RFU4501: Transceiver
WTR-4905
2. RFU4813: Power Amp.
SKY77633-11
3. RFU4701: Main Ant. Switch
SKY13488
4. RFU4803 : B5 Duplexer
5. RFU4812 : Band Switch

22. B7 ------------------- TX/RX
Top
1
1. RFU4501: Transceiver
WTR-4905
2. RFU4813: Power Amp.
$SKY77781-11
3. RFU4701: Main Ant. Switch
SKY13488
4. RFU4803 : B7 Duplexer
Inspiring Innovation．Persistent Perfection
Tx comp.
Serial IC
Rx comp.
Tx/Rx comp.
3
2
4

23. B8 ------------------- TX/RX
EGSM900 --------------- RX
Top
5
2
1
1. RFU4501: Transceiver
WTR-4905
2. RFU4813: Power Amp.
SKY77633-11
3. RFU4701: Main Ant. Switch
SKY13488
4. RFU4803 : B8 Duplexer
5. RFU4812 : Band Switch
Inspiring Innovation．Persistent Perfection
Tx comp.
Serial IC
Rx comp.
Tx/Rx comp.
2
3
4
1. RFU4501: Transceiver
WTR-4905
2. RFU4813: Power Amp.
SKY77633-11
3. RFU4701: Main Ant. Switch
SKY13488
4. RFU4803 : B8 Duplexer
5. RFU4812 : Band Switch

24. B20 ------------------ TX/RX
Top
5
2
1
1. RFU4501: Transceiver
WTR-4905
2. RFU4813: Power Amp.
SKY77633-11
3. RFU4701: Main Ant. Switch
SKY13488
4. RFU5010: B20 Duplexer
5. RFU4812 : Band Switch
Inspiring Innovation．Persistent Perfection
Tx comp.
Serial IC
Rx comp.
Tx/Rx comp.
2
3
4
1. RFU4501: Transceiver
WTR-4905
2. RFU4813: Power Amp.
SKY77633-11
3. RFU4701: Main Ant. Switch
SKY13488
4. RFU5010: B20 Duplexer
5. RFU4812 : Band Switch

25. B28A ----------------- TX/RX
Top
1
1. RFU4501: Transceiver
WTR-4905
2. RFU4813: Power Amp.
SKY77633-11
3. RFU4701: Main Ant. Switch
SKY13488
4. RFU5008: Band Switch
5. RFU5009: B28A Duplexer
6. RFU5011:Band Switch
Inspiring Innovation．Persistent Perfection
Tx comp.
Serial IC
Rx comp.
Tx/Rx comp.
4
2
3
5
6
1. RFU4501: Transceiver
WTR-4905
2. RFU4813: Power Amp.
SKY77633-11
3. RFU4701: Main Ant. Switch
SKY13488
4. RFU5008: Band Switch
5. RFU5009: B28A Duplexer
6. RFU5011:Band Switch

26. B28B ----------------- TX/RX
Top
4
1
1. RFU4501: Transceiver
WTR-4905
2. RFU4813: Power Amp.
SKY77633-11
3. RFU4701: Main Ant. Switch
SKY13488
4. RFU5008: Band Switch
5. RFU5010: B28B Duplexer
6. RFU5011:Band Switch
Inspiring Innovation．Persistent Perfection
Tx comp.
Serial IC
Rx comp.
Tx/Rx comp.
4
5
2
4
2
2
1. RFU4501: Transceiver
WTR-4905
2. RFU4813: Power Amp.
SKY77633-11
3. RFU4701: Main Ant. Switch
SKY13488
4. RFU5008: Band Switch
5. RFU5010: B28B Duplexer
6. RFU5011:Band Switch

27. B38/B41------------- TX/RX
Top
1. RFU4501: Transceiver
WTR-4905
2. RFU5409: Power Amp.
$SKY77818-11
3. RFU4701: Main Ant. Switch
SKY13488
4. RFU5004: B38/41 Duplexer
2
1
Inspiring Innovation．Persistent Perfection
Tx comp.
Serial IC
Rx comp.
Tx/Rx comp.
4
3

28. B40------------------ TX/RX
Top
1. RFU4501: Transceiver
WTR-4905
2. RFU5409: Power Amp.
$SKY77818-11
3. RFU4701: Main Ant. Switch
SKY13488
4. RFU5003: B38/41 Duplexer
2
1
Inspiring Innovation．Persistent Perfection
Tx comp.
Serial IC
Rx comp.
Tx/Rx comp.
4
3

29. LTE Div. Rx Block Diagram
Main Ant.
SKY13473-569LF
(ASM)
RFU11 Discrete SAW
WTR-4905
(Transceiver)
RFU4501
Inspiring Innovation．Persistent Perfection
SKY13473-569LF
(ASM)
RFU11
SKY13473-569LF
(ASM)
RFU11 Discrete SAW
Discrete SAW
WTR-4905
(Transceiver)
RFU4501
WTR-4905
(Transceiver)
RFU4501

30. B1 ----------------------DRx
Top
2 3
1. RFU4501: Transceiver
WTR-4905
2. RFU4702: Div. Ant. Switch
SKY13561
3. RFU5202: B1 SAW
Inspiring Innovation．Persistent Perfection
Tx comp.
Serial IC
Rx comp.
Tx/Rx comp.
1

31. B2 ----------------------DRx
Top
2 3
4
1. RFU4501: Transceiver
WTR-4905
2. RFU4702: Div. Ant. Switch
SKY13561
3. RFU5208: B2 SAW
4. RFU5212: Band switch
Inspiring Innovation．Persistent Perfection
Tx comp.
Serial IC
Rx comp.
Tx/Rx comp.
1

32. B3 ----------------------DRx
Top
2
4
3
1. RFU4501: Transceiver
WTR-4905
2. RFU4702: Div. Ant. Switch
SKY13561
3. RFU5201: B3 SAW
4. RFU5212: Band switch
Inspiring Innovation．Persistent Perfection
Tx comp.
Serial IC
Rx comp.
Tx/Rx comp.
1

33. Band5/18/19/26 -------DRx
Top
2 3
1. RFU4501: Transceiver
WTR-4905
2. RFU4702: Div. Ant. Switch
SKY13561
3. RFU5210: B5 SAW
Inspiring Innovation．Persistent Perfection
Tx comp.
Serial IC
Rx comp.
Tx/Rx comp.
1

34. Band8 -------------------DRx
Top
3
2
1. RFU4501: Transceiver
WTR-4905
2. RFU4702: Div. Ant. Switch
SKY13561
3. RFU5209: B8 SAW
Inspiring Innovation．Persistent Perfection
Tx comp.
Serial IC
Rx comp.
Tx/Rx comp.
1
3

35. DRX_B28 / B20 -------------------DRx
Top
2
1. RFU4501: Transceiver
WTR-4905
2. RFU4702: Div. Ant. Switch
SKY13561
3. RFU5213: B20/B28 SAW
Inspiring Innovation．Persistent Perfection
Tx comp.
Serial IC
Rx comp.
Tx/Rx comp.
3
1

36. Band40 ------------------DRx
Top
3
2
1. RFU4501: Transceiver
WTR-4905
2. RFU4702: Div. Ant. Switch
SKY13561
3. RFU5206: B40 SAW
Inspiring Innovation．Persistent Perfection
Tx comp.
Serial IC
Rx comp.
Tx/Rx comp.
1

37. Band38/41/7------------------DRx
Top
3
2
1. RFU4501: Transceiver
WTR-4905
2. RFU4702: Div. Ant. Switch
SKY13561
3. RFU5207: B38/41/7 SAW
Inspiring Innovation．Persistent Perfection
Tx comp.
Serial IC
Rx comp.
Tx/Rx comp.
1

38. Voltage sturcutre
1. Switch Voltage
Inspiring Innovation．Persistent Perfection
2. Transceiver Voltage

39. 1.8V
Voltage Setup
2.85V
Inspiring Innovation．Persistent Perfection
1.8V
2.85V

40. 1.8V
Voltage Setup
1.3V
2.85V
3.0V
Inspiring Innovation．Persistent Perfection

41. Outline
(*) Debug Tool Required
• Repair and Test Environment (*)
• RF Block Diagram
• RF Calibration Repair Guide (*)
– GSM Quad-bands Block Diagram
– GSM EGSM and GSM850
– GSM DCS and PCS
– WCDMA Quad-bands Block Diagram
– WCDMA Band1/Band2/Band5/Band8
– LTE Quad-bands Block Diagram
– LTE Band3/Band7/Band8/Band20/Band28
– LTE Div. Rx Block Diagram
– LTE Div. Rx Band3/Band7/Band8/Band20/Band28
• RF Test Trouble Shooting
– 2G RF Test
– 3G RF Test
– 4G RF Test
• GPS Repair Guide
• BT/WiFi Repair Guide
Inspiring Innovation．Persistent Perfection
• Repair and Test Environment (*)
• RF Block Diagram
• RF Calibration Repair Guide (*)
– GSM Quad-bands Block Diagram
– GSM EGSM and GSM850
– GSM DCS and PCS
– WCDMA Quad-bands Block Diagram
– WCDMA Band1/Band2/Band5/Band8
– LTE Quad-bands Block Diagram
– LTE Band3/Band7/Band8/Band20/Band28
– LTE Div. Rx Block Diagram
– LTE Div. Rx Band3/Band7/Band8/Band20/Band28
• RF Test Trouble Shooting
– 2G RF Test
– 3G RF Test
– 4G RF Test
• GPS Repair Guide
• BT/WiFi Repair Guide

42. 2G RF Test
Error Code Action
Tx Power
1. Re-Calibration
2. Check Tx Path
3. Change PA
ORFS/
Power vs. Time
1. Check Tx Path
2. Change PA
Inspiring Innovation．Persistent Perfection
ORFS/
Power vs. Time
1. Check Tx Path
2. Change PA
Frequency Error/
Phase Error
1. Check/change PMIC
Sensitivity/RSSI 1. Check/Change PMIC
2. Check/Change crystal
3. Check Rx Path

43. 3G RF Test
Error Code Action
Tx Power/ACLR/
SEM/OBW/EVM
1. Re-calibration
2. Check Tx Path
3. Change PA
Inspiring Innovation．Persistent Perfection
Sensitivity/RSCP
1. Re-calibration
2. Check Rx Path
Frequency Error
1. Check/Change PMIC
2. Check/Change crystal

44. 4G RF Test
Error Code Action
Tx Power/ACLR/
SEM/OBW/EVM
1. Re-calibration
2. Check Tx Path
3. Change PA
Inspiring Innovation．Persistent Perfection
Sensitivity/RSRP
1. Re-calibration
2. Check Rx Path
Frequency Error
1. Check/Change PMIC
2. Check/Change crystal

45. System level RF Test Trouble Shooting_2/3/4G (1/1)
Inspiring Innovation．Persistent Perfection
45
TX power too low
Check gasket
BER/RSRP/
RSCP/RSSI
Check gasket

46. System level RF Test Trouble Shooting_WIFI/GPS (1/4)
Inspiring Innovation．Persistent Perfection
RX fail /GPS CN too low
Check gasket
RX fail /GPS CN too low
Check the gasket location

47. System level RF Test Trouble Shooting_WIFI/GPS (2/4)
All RX test item
include BT/WIFI/GPS
Inspiring Innovation．Persistent Perfection
All RX test item
include BT/WIFI/GPS

48. System level RF Test Trouble Shooting_WIFI/GPS(3/4)
Inspiring Innovation．Persistent Perfection
All RX test item include BT/WIFI/GPS
Check the shielding case & gasket

49. System level RF Test Trouble Shooting_WIFI/GPS(4/4)
BT/WIFI/GPS
Power/CN
Diversity RX
Inspiring Innovation．Persistent Perfection

50. If following parts are moved,
to be re-done Calibration (PHONE)
1.Transceiver: RFU4401 ASM: RFU4701/RFU4702
2.PA: RFU4813 /RFU5409 /RFU5001
3.Duplexer: RFU4801 /RFU4802 /RFU4805 /RFU4804
RFU4803 /RFU5009 /RFU5010 /RFU5002 /RFU5003
RFU5004
4.SAW: RFU5208 /RFU5201/ RFU5207/ RFU5206
RFU5213 /RFU5209 /RFU5210/ RFU5202
5.Coupler: RFCON4702
6.Switch: RFU5212/ RFU5008/ RFU5011/ RFU4809
RFU4704
7. Low Pass filter: RFU5006 /RFU4810 /RFU4502
Inspiring Innovation．Persistent Perfection
1.Transceiver: RFU4401 ASM: RFU4701/RFU4702
2.PA: RFU4813 /RFU5409 /RFU5001
3.Duplexer: RFU4801 /RFU4802 /RFU4805 /RFU4804
RFU4803 /RFU5009 /RFU5010 /RFU5002 /RFU5003
RFU5004
4.SAW: RFU5208 /RFU5201/ RFU5207/ RFU5206
RFU5213 /RFU5209 /RFU5210/ RFU5202
5.Coupler: RFCON4702
6.Switch: RFU5212/ RFU5008/ RFU5011/ RFU4809
RFU4704
7. Low Pass filter: RFU5006 /RFU4810 /RFU4502

51. Outline
(*) Debug Tool Required
• Repair and Test Environment (*)
• RF Block Diagram
• RF Calibration Repair Guide (*)
– GSM Quad-bands Block Diagram
– GSM EGSM and GSM850
– GSM DCS and PCS
– WCDMA Quad-bands Block Diagram
– WCDMA Band1/Band2/Band5/Band8
– LTE Quad-bands Block Diagram
– LTE Band3/Band7/Band8/Band20/Band28
– LTE Div. Rx Block Diagram
– LTE Div. Rx Band3/Band7/Band8/Band20/Band28
• RF Test Trouble Shooting
– 2G RF Test
– 3G RF Test
– 4G RF Test
• GPS Repair Guide
• BT/WiFi Repair Guide
Inspiring Innovation．Persistent Perfection
• Repair and Test Environment (*)
• RF Block Diagram
• RF Calibration Repair Guide (*)
– GSM Quad-bands Block Diagram
– GSM EGSM and GSM850
– GSM DCS and PCS
– WCDMA Quad-bands Block Diagram
– WCDMA Band1/Band2/Band5/Band8
– LTE Quad-bands Block Diagram
– LTE Band3/Band7/Band8/Band20/Band28
– LTE Div. Rx Block Diagram
– LTE Div. Rx Band3/Band7/Band8/Band20/Band28
• RF Test Trouble Shooting
– 2G RF Test
– 3G RF Test
– 4G RF Test
• GPS Repair Guide
• BT/WiFi Repair Guide

52. GPS Ant Block Diagram
SAW
WTR4905
RFU4501
WTR4905
RFU4501
RFU5403
RFU5401
Inspiring Innovation．Persistent Perfection
SAW
SAW
GPS Ant.
WTR4905
RFU4501
WTR4905
RFU4501
LNA

53. GPS
3
2
2.85V
Bot
GPS Ant. Spring
Serial comp.
with orientation
Serial comp. without
orientation
GPS Antenna area
4
Inspiring Innovation．Persistent Perfection
1. RFU4501 : Transceiver
WTR4905
2. RFU5401: GPS LNA
3. RFU5403 : GPS SAW Filter
4. RFU5407: Diplexer
2
1
Top

54. GPS Function Test Procedure
• Check GPS function with GPS Test Tool.
• Check the GPS feed point.
• Check RFU5403 components
• Check the 2.85V supply voltage of GPS LNA
Inspiring Innovation．Persistent Perfection
• Check GPS function with GPS Test Tool.
• Check the GPS feed point.
• Check RFU5403 components
• Check the 2.85V supply voltage of GPS LNA
54

55. Outline
(*) Debug Tool Required
• Repair and Test Environment (*)
• RF Block Diagram
• RF Calibration Repair Guide (*)
– GSM Quad-bands Block Diagram
– GSM EGSM and GSM850
– GSM DCS and PCS
– WCDMA Quad-bands Block Diagram
– WCDMA Band1/Band2/Band5/Band8
– LTE Quad-bands Block Diagram
– LTE Band3/Band7/Band8/Band20/Band28
– LTE Div. Rx Block Diagram
– LTE Div. Rx Band3/Band7/Band8/Band20/Band28
• RF Test Trouble Shooting
– 2G RF Test
– 3G RF Test
– 4G RF Test
• GPS Repair Guide
• BT/WiFi Repair Guide
Inspiring Innovation．Persistent Perfection
• Repair and Test Environment (*)
• RF Block Diagram
• RF Calibration Repair Guide (*)
– GSM Quad-bands Block Diagram
– GSM EGSM and GSM850
– GSM DCS and PCS
– WCDMA Quad-bands Block Diagram
– WCDMA Band1/Band2/Band5/Band8
– LTE Quad-bands Block Diagram
– LTE Band3/Band7/Band8/Band20/Band28
– LTE Div. Rx Block Diagram
– LTE Div. Rx Band3/Band7/Band8/Band20/Band28
• RF Test Trouble Shooting
– 2G RF Test
– 3G RF Test
– 4G RF Test
• GPS Repair Guide
• BT/WiFi Repair Guide

56. WiFi/BT Ant Block Diagram
WCN-3620
(WiFi Module)
SAW
RFU5301
Inspiring Innovation．Persistent Perfection
WCN-3620
(WiFi Module)
WCN-3620
(WiFi Module)
WiFi/BT Ant.
SAW
SAW

57. WiFi/BT
Serial comp.
without orientation
Serial comp.
with orientation
WiFi Antenna area
Inspiring Innovation．Persistent Perfection
Serial comp.
with orientation
WiFi/BT
Ant. Spring

58. BT/WLAN Function Test Procedure
Board level
•Check the BT/WLAN feed point
•Check WCN3620 and surrounding
components
System level
•Change antenna
•Check the RFC5402
Inspiring Innovation．Persistent Perfection
Board level
•Check the BT/WLAN feed point
•Check WCN3620 and surrounding
components
System level
•Change antenna
•Check the RFC5402
58

59. www.ufibox.com
Inspiring Innovation．Persistent Perfection
www.ufibox.com