Asus P552W User manual

GTC ■Service Manual
1
華
華碩 碩電 電腦 腦
P552W Level 3,4
Trouble Shooting Guide
Ver 1.0

GTC ■Service Manual
2
華
華碩 碩電 電腦 腦
CONTENT
1. OVERVIEW
1.1 System Block Diagram ...……………………..……………... 5
1.2 power-on sequence ………………………………………...… 6
1.2.1 Start-up Timing Diagram …………………...……………. 6
1.2.2 Start-up Timing Parameters …………………………...….7
1.2.3 Power-on Sequence Summary ………………...…………. 7
1.2.4 POWER UP RESET TIMING ………………………….... 8
1.2.5 POWER UP TIMING SPECIFICATIONS (1/2) ………... 9
1.2.6 POWER UP TIMING SPECIFICATIONS (2/2) ………... 9
1.3 Main Specification ………………………………………….. 10
1.4 Device exterior description …………………………………. 11
1.4.1 FRONT SIDE ………………………….………………... 11
1.4.2 BACK SIDE …………………………………………….. 12
1.5 On Board Major Components Location …………………….. 13
1.5.1 FRAON SIDE ………………………………………..…. 13
1.5.2 BACKT SIDE …………………………………………... 14
1.6 Debugging Equipments ……………………………………... 16
2.Baseband Trouble Shooting
2.1 Introduction …………………………………………………. 19
2.2 Device Cannot Power On …………………………………… 19
2.2.1 Measure each power-on sequence voltage level ………... 19
2.2.2 RTC can’t power on issue ………………………………. 21
2.3 Device Peripheral Trouble Shooting (MMI Testing) ……….. 22
2.3.1 LCD Display Test ………………...…………………….. 22
2.3.2 Vibrator Test ……………………….…………………… 23
2.3.3 RTC Test ……………………………...………………… 23
2.3.4 Storage Test …………………………………………….. 23
2.3.5 MicroSD Test …………………………………………… 24
2.3.6 LED Test ………………………………………………... 24
2.3.7 3M and VGA camera Test ……………………………… 25
2.3.8 SIM Test ………………………………………………... 27
2.3.9 Battery Test ……………………………………………... 28

GTC ■Service Manual
3
華
華碩 碩電 電腦 腦
2.3.10 SDRAM Test ………………………………..………… 30
2.3.11 Audio Test …………………………………………….. 30
2.3.12 Touch Panel Defect ……………………………….… 35
3.RF Trouble Shooting
3.1 Equipment ……………………………………..…………... 36
3.1.1 Software requirements ................................................. 36
3.1.2 Hardware requirements ................................................... 36
3.1.3 Instrument requirements.................................................. 36
3.2 RF Block Diagram..................................................................37
3.2.1 GSM block diagram........................................................ .37
3.2.2 WCDMA block diagram.................................................. 38
3.2.3 Bluetooth and WLAN block diagram ............................. 39
3.3.4 GPS block diagram ......................................................... 40
3.3 Procedures of RF Repair........................................................ 40
3.3.1 GSM and WCDMA repair procedures ........................... 40
3.3.2 Bluetooth and WLAN repair procedure ......................... 42
3.3.3 GPS repair procedure ..................................................... 43
3.4 General GSM debug.............................................................. 44
3.4.1 GSM path and test points ............................................ 44
3.4.2. GSM Tx debug ……………………………………... 48
3.4.3 GSM Rx debug ............................................................ 58
3.5 General WCDMA debug....................................................... 64
3.5.1. WCDMA path and test points ……………………..... 64
3.5.2 WCDMA Tx debug ..................................................... 67
3.5.3 WCDMA Rx debug………………………………….. 75
3.6 General Bluetooth and WLAN debug .................................. 80
3.6.1 Bluetooth and WLAN path and test points ………...... 80
3.6.2 Bluetooth and WLAN debug ………………………... 82
3.7 General GPS debug................................................................ 86
3.7.1 GPS path and test points .............................................. 86
3.7.2 GPS debug …………………………………………... 89

GTC ■Service Manual
4
華
華碩 碩電 電腦 腦
Appendix
1. Bluetooth Debug Tool Operation ................................... 101
2. WLAN Debug Tool Operation ....................................... 104
3. GPS Debug Tool Operation – GPSinformation_en........ 109
4. GPS Firmware Download Tool Operation – GPSDL..... 111
5. GPS Debug Tool Operation – SiRFDemo...................... 113

GTC ■Service Manual
5
華
華碩 碩電 電腦 腦
1. OVERVIEW
1.1 System Block Diagram

GTC ■Service Manual
6
華
華碩 碩電 電腦 腦
1.2 power-on sequence
1.2.1 Start-up Timing Diagram

GTC ■Service Manual
7
華
華碩 碩電 電腦 腦
1.2.2 Start-up Timing Parameters
1.2.3 Power-on Sequence Summary

GTC ■Service Manual
8
華
華碩 碩電 電腦 腦
The baseband processor must write a logic 1 to a dedicated I2C
watchdog register bit during the next 8 s period. This will
move the DA9035 into the ACTIVE mode, and start the continuous
watchdog monitoring circuit. Failure to issue the initial watchdog
write will result in shut down of the DA9035 to the power-down state.
Once in the ACTIVE state, the EXT_WAKEUP signal will be
asserted while the nONKEY, nEXTON or VCHG_DETECT are
asserted (after de-bouncing), otherwise it is held low.
All I/Os of the DA9035, connected to the host processor will be
released at the end of the 32 ms countdown.
1.2.4 POWER UP RESET TIMING

GTC ■Service Manual
9
華
華碩 碩電 電腦 腦
1.2.5 POWER UP TIMING SPECIFICATIONS (1/2)
1.2.6 POWER UP TIMING SPECIFICATIONS (2/2)

GTC ■Service Manual
10
華
華碩 碩電 電腦 腦
1.3 Main Specification
Networks
HSDPA 3.6Mbps, UMTS 2100
EDGE/GPRS/GSM 900/1800/1900, Class 10
Operating System Microsoft Windows® Mobile™ 6.1 Professional
CPU Marvell Tavor 624MHz
Memory 256 MB Flash + 128MB SDRAM
Connectivity USB v1.1(FS), Bluetooth 2.0+EDR
GPS SiRF Star III
Display 2.8“, QVGA 240 x 320, 65K, TFT
Camera 2 Mega-Pixel, Fixed Focus
Battery 1100mAh Lithium
Weight Around 105g (with battery)
Standby Time 3G: 150 hours / 2G: 150 hours
Talk Time 3G: 3 hours / 2G: 5 hours
Expansion Slot Micro-SD (support SDHC)
Browser HTTP / WAP 1.2.1/2.0
Messaging SMS / MMS / Email / MSN / Push E-mail
Video
Record:MPEG4@QVGA 24fps / H.263@QCIF 24fps
Playback:MPEG4@QVGA 30fps / H.263@QCIF 30fps
Picture JPEG / PNG / GIP / BMP
Audio MP3 / WMA / 3GP / AAC / AAC+
Ringtone MP3 / MIDI
JAVA J2ME (CLDC 1.1 + MIDP2.0)