Samsung SGH-Z105 Service Manual
UMTS TELEPHONE
SGH-Z105
SERVICE
Manual
UMTS TELEPHONE CONTENTS
1. Specification
2. Circuit Description
3. Exploded Views and Parts List
4. Electrical Parts List
5. Block Diagrams
6. PCB Diagrams
7. Flow Chart of Troubleshooting
ELECTRONICS
This Service Manual is a property of Samsung Electronics Co.,Ltd.
Any unauthorized use of Manual can be punished under applicable
International and/or domestic law.
ⓒ
Samsung Electronics Co.,Ltd. April. 2004
Printed in Korea.
Code No.: GH68-05056A
BASIC.
1. SGH-Z105 Specification
1. GSM General Specification
GSM900
Phase 1
Freq. Band[MHz]
Uplink/Downlink
ARFCN range 1~124
Tx/Rx spacing 45MHz 45MHz 95MHz
Mod. Bit rate/
Bit Period
Time Slot
Period/Frame
Period
Modulation 0.3GMSK 0.3GMSK 0.3GMSK
MS Power 33dBm~13dBm 33dBm~5dBm 30dBm~0dBm
890~915
935~960
270.833kbps
3.692us
576.9us
4.615ms
EGSM 900
Phase 2
880~915
925~960
0~124 &
975~1023
270.833kbps
3.692us
576.9us
4.615ms
DCS1800
Phase 1
1710~1785
1805~1880
512~885
270.833kbps
3.692us
576.9us
4.615ms
Power Class 5pcl ~ 15pcl 5pcl ~ 19pcl 0pcl ~ 15pcl
Sensitivity -102dBm -102dBm -100dBm
TDMA Mux 8 8 8
Cell Radius 35Km 35Km 2Km
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Specification
2. GSM TX power class
TX Power
control level
5 33±2 dBm
6 31±2 dBm
7 29±2 dBm
8 27±2 dBm
9 25±2 dBm
10 23±2 dBm
11 21±2 dBm
GSM900
TX Power
DCS1800
control level
0 30±3 dBm
1 28±3 dBm
2 26±3 dBm
3 24±3 dBm
4 22±3 dBm
5 20±3 dBm
6 18±3 dBm
12 19±2 dBm
13 17±2 dBm
14 15±2 dBm
15 13±2 dBm
16 11±3 dBm
17 9±3dBm
18 7±3 dBm
19 5±3 dBm
7 16±3 dBm
8 14±3 dBm
9 12±4 dBm
10 10±4 dBm
11 8±4dBm
12 6±4 dBm
13 4±4 dBm
14 2±5 dBm
15 0±5 dBm
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2. SGH-Z105 Circuit Description
1. SGH-Z105 RF Circuit Description
1. Antenna Switch Module (U100)
The antenna switch module allows multiple operating bands and modes to share the same antenna. A common
antenna connects to one of five paths: 1) UMTS-2100 Rx/Tx, 2) EGSM-900 Rx, 3) EGSM-900 Tx, 4) DCS-1800
Rx, and 5) DCS-1800 Tx. UMTS operation requires simultaneous reception and transmission.
2. Filter
To convert Electromagnetic Field Wave to Acoustic Wave and then pass the specific frequency band.
- GSM Rx FILTER (F101)→For filtering the frequency band between 925 ~ 960 MHz.
- DCS Rx FILTER (F100)→For filtering the frequency band 1805 and 1880 MHz.
- WCDMA Rx FILTER (F201)→For filtering the frequency band 2110 and 2170 MHz.
- WCDMA Tx FILTER (F202)→For filtering the frequency band 1920 and 1980 MHz.
3. TCVCXO (OSC202)
To generate the 19.2MHz reference clock to drive the logic and RF.
4. Duplexer (F203)
A duplexer splits a single operating band into receive and transmit paths.
5. Isolator (MIS201)
An isolator between the Power Amplifier and the duplexer is highly recommended to provide constant load and
source impedances (respectively) to those devices.
6. UMTS PAM (U202)
This is a key component in the transmitter chain and must complement the RTR6200 IC precisely; jointly they
dominate the UMTS transmitter performance characteristics. Parameters such as gain, output power level, ACLR,
harmonics, Rx-band noise, and power supply current are critical.
7. GSM/DCS PAM (U102)
The PAM is a key component in any transmitter chain and must complement the rest of the transmitter precisely.
For GSM and DCS operation, the closed-loop transmit power control functions add even more requirements
relative to the UMTS PA. In addition to gain control and switching requirements, the usual RF parameters such
as gain, output power level, several output spectrum requirements, and power supply current are critical.
8. GSM/DCS Dual Tx VCO (OSC101)
The dual Tx VCO outputs, one for EGSM and one for DCS, drive a resistive network that splits the active signal
into two signals: 1) the input to the active PAM – this is the low loss path, and 2) the OPLL feedback signal.
9. Dual VCO (OSC201)
The dual-band UHF VCO is a key component within its phase-locked loop; VCO performance directly impacts
PLL and transceiver performance. GSM/DCS Rx/Tx LO & UMTS Rx LO signal is generated from this dual VCO's
output.
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Circuit Description
10. RFL6200 (U201)
The RFL6200 includes an LNA circuit optimized for UMTS-2100 operation. The LNA is separated from all other
receive functions contained within the RFR6200 receiver IC to improve mixer LO to RF isolation – a critical
parameter in the Zero-IF architecture.
11. RFR6200 (U205)
The RFR6200 provides the Zero-IF receiver signal path, from RF to analog baseband, for UMTS-2100
applications. The RFR6200 accepts its UMTS input signal from the handset RF front-end design. The UMTS
input is configured differentially to optimize second-order inter-modulation and common mode rejection
performance, and implements MSM-controlled gain adjustments to extend the receiver dynamic range.
12. RTR6200 (U101)
The RTR6200 supports multi-band, multi-mode phones with two receiver signal paths and three transmitter signal
paths:
1) Receiver paths
- EGSM-900
- DCS-1800
2) Transmitter paths
- EGSM-900 (using OPLL technique)
- DCS-1800 (using OPLL technique)
- UMTS-2100
Numerous secondary functions are integrated on-chip as well:
3) Phase-locked loop circuits
- PLL#1 and an on-chip VCO supports UMTS Tx
- PLL#2 and an external VCO supports EGSM Rx and Tx, DCS Rx and Tx, and UMTS Rx
4) Transceiver LO generation and distribution circuits
- EGSM-900 Rx and Tx
- DCS-1800 Rx and Tx
- UMTS-2100 Tx
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Circuit Description
2. Baseband Circuit description of SGH-Z105
1. PM6050
1.1. Power Management
Ten low-dropout regulators designed specifically for GSM applications power the terminal and help ensure optimal
system performance and long battery life. It provides seven LDO support for 2.6V, 2.8V while a self-resetting,
electronically fused switch supplies power to external accessories. Ancillary support functions, such as RTC
module and RTC charger, Clock Buffer, aid in reducing both board area and system complexity.
SBI BUS serial interface provides access to control and configuration registers. This interface gives full control
of the MSM6200 and enables system designers to maximize both standby and talk times.
Supervisory functions. including a reset generator, an input voltage monitor, and a ADC Conertte support reliable
system design. These functions work together to ensure proper system behavior during start-up or in the event
of a fault condition(low microprocessor voltage, insufficient battery energy, or excessive die temperature).
1.2. Keypad Backlight
The Keypad backlight driver output is at pin 17 (KEYBD_DRV) and is designed to drive parallel connected LEDs
directly. Its output current level is SBI-programmable and meets the performance specified below.
Input parameters are not specified since they are internal.
1.3. TCXO Controller and Buffers
The PM6050 IC includes circuits for controlling the TCXO warm-up and buffering its signal for distribution
throughout the handset. Performance specifications are presented below.
2. Connector
2-1. LCD Connector
LCD is consisted of main LCD(color 262K TFT LCD) and small LCD(color 65K LCD). Chip select signals in the
U302, LCD_CS1- can enable small LCD. W_LED_ON signal enables white LED of main LCD, EN_EN signal
enables EL of small LCD.
"RESET-, TFT_RESET_N" signal initiates the Reset process of the LCD.
8-bit data lines(AD(0)~AD(7)) transfers data and commands to Small LCD through by pass capacitor. Data and
commands use "RS" signal. If this signal is high, Inputs to LCD are commands. If it is low, Inputs to LCD are
data. The signal which informs the input or output state to LCD, is required. But this system is not necessary
this signal.
Power signals for LCD are "VDD_LP" and "2.8LV". "SPK+" and "SPK-" from U533 are used for audio speaker.
And "Vibrator" from Q702 enables the motor.
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Circuit Description
2-2. Key
This is consisted of key interface pins among U302, KEYSENSE_N(0:4). These signals compose the matrix.
Result of matrix informs the key status to key interface in the U302. Power on/off key is seperated from the
matrix. So power on/off signal is connected with U302 to enable U601. twelve key LED use the "VBAT" supply
voltage. "KEY_LED_ON" signal enables LEDs with current control. "HALL_SW" informs the status of folder
(open or closed) to the. This uses the hall effect IC, A3210ELH. A magnet under main LCD enables A3210ELH.
2-3. EMI ESD Filter
This system uses the EMI ESD filter, SMF05 to protect noise from IF CONNECTOR part.
2-4. IF connetor
It is 24-pin connector. They are designed to use VBATT, CF, M_TXD0, M_RXD0, RTS, CTS, JIG_ON,
HFK_DETECT, M_RXD0, M_TXD0, HFK_MIC+, HFK_MIC-, HFK_SPK+, HFK_SPK- and GND. They connected to
power supply IC, microprocessor and signal processor IC.
3. Audio
EAR1OP and EAR1ON from U302 are connected to the main speaker. AUXOP and AUXON are connected to
the Hands free kit. MIC_P and MIC_N are connected to the main MIC. And EAR_MIC1P and EAR_MIC1N are
connected to the Earphone.
YMU762MA3 is a LSI for portable telephone that is capable of playing high quality music by utilizing FM
synthesizer and ADPCM decoder that are included in this device.
As a synthesis, YMU762MA3 is equipped 32 voices with different tones. Since the device is capable of
simultaneously generating up to synchronous with the play of the FM synthesizer, various sampled voices can be
used as sound effects.
Since the play data of YMU762MA3 are interpreted at anytime through data bus, the length of the data(playing
period) is not limited, so the device can flexibly support application such as incoming call melody music
distribution service.
The hardware sequence built in this device allows playing of the complex music without giving excessive load to
the CPU of the portable telephones. Moreover, the registers of the FM synthesizer can be operated directly for
real time sound generation, allowing, for example, utilization of various sound effects when using the game
software installed in the portable telephone.
YMU762 includes a speaker amplifier with high ripple removal rate whose maximum output is 550mW (SPVDD=3.
6V). For the headphone, it is provided with a stereophonic output terminal.
4. Memory
The signals in the MSM6200 enable two memories. They use only one volt supply voltage, VDD_LP from the
PM6050. This system uses AMD's memory, AM50DL128BG. It is consisted of 128M bits flash NOR memory and
32M bits SRAM memory. It has 16 bit data line, AD[0~15] which is connected to MSM6200. It has 22 bit
address lines, A[1~22]. ROM_CS and RAM_CS signals is chip select.
In the multi-media processor, it has three type memories. One is 256Mbit Nor Flash memory another is 256Mbit
NAND Flash memory and the other is 128Mbit SDRAM memory. Multi-media processor doesn't have a NAND
memory interface. But we make a software algorithm use for NAND memory.
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Circuit Description
5. Multi-media processor MA55133
MA55133 is an LSI, which is designed on 3GPP 3G-324M Standard for a video telephone system.
Since protocol software is external, MA55133 can run with another protocol like H.323 by changing its software.
Because of small power consumption - Typ.140mW and very small package - FPBGA, it is suitable to use
3G-324M LSI for portable apparatus.
Feature
- Based on 3GPP 3G-324M standard
- Video MPEG-4 (simple profile level1) or H263 (baseline)
- Audio AMR, G723.1, MP3 or AAC (program downloadable)
- Multiplexing H.223 (Level 0, 1, 2, processed by CPU with assistant hardware)
- Control H.245 (Processed all by CPU)
- Built-in 32bit RISC CPU(ARM7TDMI) for control, including H.245 and H.223
- Built-in 16bit DSP for audio CODEC
- Built-in SD card I/F
- Video input Rec601 YUV = 4:2:2, 8 bit I/F
- Video output Rec601 YUV = 4:2:2(8bit) / RGB 18bit
Built-in Picture-In-Picture Image Displaying Functions
Built-in On Screen Display(OSD) Functions
- Video CODEC 15fps for both encode and decode in QCIF size is possible.
- Program on SDRAM is executable without ROM (optional).
- Power supply VDDI=2.0V to 2.7V (internal), VDDO=2.7 to 3.6V (I/O)
6. Camera (OM6802)
The OM6802 is a highly integrated compact CMOS color camera module with embedded Camera Signal
Processor (CSP) that supports up to VGA resolution formats in a small package including a focused optical
system. It uses Philips See MOSTM technology for high sensitivity and low noise. The device is programmable
via an I2C serial interface. The CIR656 compliant YUV output stream enables easy integration into mobile
phones or PDAs.
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3. SGH-Z105 Exploded View and its Parts list
FOLDER UPPER
UPPER
1. Cellular phone Exploded View
QCW02
QCH04
QCH02
QCH05
QCH06
QCH01
QCA01
QCR05
QFR01
CAMERA
FRONT COVER
QMW03
WINDOW
QFU01
SHIELD COVER
QSC17
QAN01
QRF01
QVO02
QKP01
QME01
QSH03
QMP01
QIF01
QVO01
QRE01
IF COVER
QCR01
QSC02
KEY VOLUME
QCL06
QMO02
QSP01
QFL01
QMW02
MAIN WINDOW LCD
QCR01
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QUA01
QUA05
2. Cellular phone Parts list
Exploded view and its Part list
Location
NO.
QMW03 PCT-WINDOW UPPER GH72-12157A
QFU01 FOLDER UPPER GH75-04201A
QCL06 LCD GH07-00527A
QMO02 MOTOR 3101-001341
QSP01 SPEAKER 3001-001532
QFL01 FOLDER LOWER GH75-04202A
QMW02 WINDOW MIAN GH72-12158A
QCR07 SCREW 6001-001691
QSC02 SCREW CAP GH74-07557A
QCH04 CAMERA COVER GH71-02131A
QCW02 CAMERA WINDOW GH72-09666A
QCH02 CAMERA HOUSING GH72-12966A
QCA01 CAMERA GH96-01500A
QCH05 CAMERA SHAFT GH71-02656B
Description SEC CODE Remark
QCR05 SCREW 6001-001478
QCH01 CAMERA HINGE DUMMY GH72-11107A
QCH06 FRONT SIDE DUMMY GH75-04646A
QVO02 KEY REJECT GH75-04237A
QFR01 FRONT COVER GH75-04203A
QIF01 IF COVER GH72-12149A
QKP01 KEYPAD GH75-04205A
QME01 METAL DOME GH59-01273A
QSH03 SHIELD COVER GH72-12147A
QMP01 PBA MAIN GH92-01703A
QSC17 REAR SCREW CAP GH72-12151A
QAN01 ANTENNA GH42-00391A
QRF01 RF COVER GH72-12150A
QRE01 REAR COVER GH75-04204A
QVO01 KEY VOLUME GH75-04236A
QCR07 SCREW 6001-001691
QBA01 BATTERY GH43-01279A
QBA05 BATTERY GH43-01280A
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Exploded view and its Part list
3. Test Jig (GH80-03305A)
3-1. RF Test Cable
(GH39-00105A)
3-2. Test Cable
(GH39-00210A)
3-4. Power Supply Cable 3-5. DATA CABLE
(GH39-00208A)
3-3. Serial Cable
3-6. TC
(GH44-00482A)
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4. SGH-Z105 MAIN Electrical Parts List
SEC Code Design LOC
0403-001427 ZD806
0403-001427 ZD807
0406-001084 D502
0406-001084 U513
0406-001084 ZD802
0406-001084 ZD803
0406-001084 ZD804
0406-001084 ZD808
0406-001084 ZD809
0406-001084 ZD810
0406-001178 ZD701
0406-001178 ZD801
0406-001178 ZD805
0407-001002 D601
0407-001002 D602
0407-001002 D603
0407-001002 D702
0407-001038 U704
SEC Code Design LOC
1001-001231 U527
1001-001253 U547
1105-001489 U403
1109-001234 U401
1109-001243 U303
1201-001954 U102
1201-001984 U201
1201-001990 U202
1202-001036 U503
1203-002113 U606
1203-002965 U707
1203-003007 U601
1203-003137 U603
1203-003137 U607
1203-003137 U608
1203-003326 U204
1204-002018 U402
1204-002161 U510
0501-000162 Q702
0501-000218 Q703
0501-000218 Q706
0504-000168 Q601
0504-000168 Q705
0504-001060 U203
0504-001113 Q202
0505-001131 Q201
0505-001131 Q701
0505-001332 U301
0505-001454 Q704
0505-001570 U304
0505-001570 U604
0505-001570 U708
0505-001570 U710
1001-001183 U533
1001-001183 U546
1001-001183 U703
1205-002293 U509
1205-002295 U302
1205-002297 U205
1205-002300 U101
1205-002514 U705
1404-001224 TH301
1405-001018 V801
1405-001082 V802
2007-000138 R105
2007-000138 R111
2007-000138 R117
2007-000138 R125
2007-000138 R130
2007-000138 R131
2007-000138 R203
2007-000138 R220
2007-000138 R226
2007-000138 R332
1001-001225 U100
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2007-000138 R405
4-1
Electrical Parts List
SEC Code Design LOC
2007-000138 R805
2007-000138 R806
2007-000138 R808
2007-000139 R115
2007-000139 R116
2007-000139 R122
2007-000139 R123
2007-000140 R103
2007-000140 R134
2007-000140 R229
2007-000140 R334
2007-000141 R102
2007-000142 R706
2007-000143 R411
2007-000143 R827
2007-000144 R137
2007-000147 R133
2007-000148 R124
SEC Code Design LOC
2007-000148 R837
2007-000148 U706
2007-000149 R335
2007-000152 R705
2007-000152 R707
2007-000152 R828
2007-000153 R317
2007-000153 R318
2007-000153 R401
2007-000153 R404
2007-000153 R414
2007-000153 R415
2007-000153 R516
2007-000157 R112
2007-000157 R224
2007-000157 R330
2007-000157 R412
2007-000157 R413
2007-000148 R132
2007-000148 R205
2007-000148 R210
2007-000148 R211
2007-000148 R212
2007-000148 R301
2007-000148 R304
2007-000148 R311
2007-000148 R312
2007-000148 R324
2007-000148 R327
2007-000148 R403
2007-000148 R603
2007-000148 R604
2007-000148 R612
2007-000148 R618
2007-000148 R709
2007-000148 R826
2007-000157 R420
2007-000157 R421
2007-000159 R840
2007-000159 R848
2007-000162 R407
2007-000162 R409
2007-000162 R410
2007-000162 R602
2007-000162 R704
2007-000163 R517
2007-000164 R624
2007-000166 R503
2007-000166 R838
2007-000168 R315
2007-000168 R623
2007-000170 R620
2007-000171 R101
2007-000171 R106
2007-000148 R836
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2007-000171 R107
4-2
Electrical Parts List
SEC Code Design LOC
2007-000171 R108
2007-000171 R109
2007-000171 R110
2007-000171 R113
2007-000171 R118
2007-000171 R128
2007-000171 R204
2007-000171 R206
2007-000171 R213
2007-000171 R216
2007-000171 R218
2007-000171 R230
2007-000171 R328
2007-000171 R329
2007-000171 R402
2007-000171 R406
2007-000171 R408
2007-000171 R416
SEC Code Design LOC
2007-000171 R812
2007-000171 R813
2007-000171 R819
2007-000171 R820
2007-000171 R821
2007-000171 R822
2007-000171 R823
2007-000171 R825
2007-000171 R830
2007-000171 R831
2007-000171 R832
2007-000171 R833
2007-000171 R834
2007-000171 R841
2007-000171 R843
2007-000171 R844
2007-000171 R845
2007-000171 R846
2007-000171 R417
2007-000171 R418
2007-000171 R419
2007-000171 R504
2007-000171 R508
2007-000171 R509
2007-000171 R510
2007-000171 R512
2007-000171 R514
2007-000171 R606
2007-000171 R609
2007-000171 R622
2007-000171 R801
2007-000171 R802
2007-000171 R803
2007-000171 R804
2007-000171 R807
2007-000171 R809
2007-000171 R849
2007-000171 R850
2007-000171 R851
2007-000171 R853
2007-000172 R138
2007-000172 R811
2007-000172 R814
2007-000172 R815
2007-000172 R816
2007-000172 R817
2007-000172 R818
2007-000173 R202
2007-000636 R621
2007-000775 R515
2007-000932 R331
2007-000982 R708
2007-001119 R305
2007-001119 R308
2007-000171 R810
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2007-001119 R336
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