Samsung SCH-A310 Service Manual

SERVICE

PORTABLE CELLULAR TELEPHONE

SCH-A310

Manual

PORTABLE CELLULAR TELEPHONE CONTENTS

1. General Introduction

2. Specification

3. Installation

4. NAM Programming

5. Product Support Tools

6. Circuit Description

7. Test Procedure

8. Trouble Shooting

9. Exploded Views and Parts List

10. Block Diagram

11. Electrical Parts List

12. PCB Diagrams

13. Circuit Diagrams

©Samsung Electronics Co.,Ltd. August. 2002

Pinted in Korea. Code No.: GH68-03090A BASIC.

ELECTRONICS

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1-1

1. General Introduction

The SCH-A310 DBDM(Dual Band Dual Mode) phone functions as both analog phone working in AMPS (Advanced Mobile Phone Service) mode and digital phone working in PCS (Personal Communication Service) and GPS modes. The following standards and minimum performance standards shall be met or exceeded by each subscriber unit.

Air Interface

The Subscriber Unit shall be Dual mode and Dual band in compliance with ANSI J-STD-008 and TIA/EIA IS95A(Analog).

ANSI J-STD-008 : Personal Station-Base Station Compatibility Requirements for 1.8 to 2.0 GHz CDMA PCS.

ANSI J-STD-018 : Recommended Minimum Performance Requirements for 1.8 to 2.0 GHz CDMA Personal

Stations.

CDG Ref. Document #27 : High Rate Speech Service Option for Wideband Spread Spectrum System.

TIA/EIA IS-96A : Speech Service Option 1 Standard for Dual mode Wideband Spread Spectrum Cellular

Systems.

TIA/EIA IS-125 : Recommended Minimum Performance standards for Digital Cellular Wideband Spread

Spectrum Speech Service Option1.

TIA/EIA IS-126-A : Mobile Station Loop back Service Option standard.

TIA/EIA IS-95B : Mobile Station-Base Station Compatibility Standard for Dual-Mode Wideband Spread

Spectrum Cellular Systems;for the analog air interface.

TIA/EIA IS-98C : Recommended Minimum Performance Standard for Dual-Mode Wideband Spread PCS

Cellular Systems. Both Analog and CDMA sections apply.

TIA/EIA IS-801-1 : Position Determination Service standards for Dual Mode Spread Spectrum System.

CDMA Receiver/Transmitter Specifications and Requirements

The Subscriber Unit shall comply with ANSI J-STD-008 and meet or exceed TIA/EIA IS-98C. The Subscriber Unit shall comply with Personal Station Class II.

Analog Receiver/Transmitter Specifications and Requirements

The Subscriber Unit shall comply with TIA/EIA IS-95B and meet or exceed TIA/EIA IS-95. The Subscriber Unit shall comply with Mobile Station Power Class III (600 mW).

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2-1

2. Specification

2-1 General

Item US PCS CDMA AMPS GPS

Tx Freq. range 1851.25~1908.75MHz 824.70~848.31MHz 824.04~848.97MHz -

Rx Freq. range 1931.25~1988.75MHz 869.70~893.31MHz 869.04~893.97MHz 1574~1576MHz

Channel Bandwidth 1.23MHz 1.23MHz 30KHz

Channel Spacing 50KHz 30KHz 30KHz -

Number of Channel 1200 20FA 832 -

Duplex Separation 80MHz 45MHz 45MHz -

Type of Emission 1M25F9W 1M25F9W 40K0F8W, 40K0F1D -

In/Output Impdance 50Ω 50Ω 50Ω -

Tx Intermediate Frequency 263.6MHz 228.6MHz 228.6MHz -

Rx Intermediate Frequency 183.6MHz 183.6MHz 183.6MHz -

1st(FTX+263.6MHz) 1st(FTX+228.6MHz) 1st(FTX+228.6MHz)

Tx Local Frequency 2nd(527.2MHz) 2nd(457.2MHz) 2nd(457.2MHz) -

1st(FRX+183.6MHz) 1st(FRX+183.6MHz) 1st(FRX+183.6MHz)

Rx Local Frequency 2nd(367.2MHz) 2nd(367.2MHz) 2nd(367.2MHz) -

TCXO Frequency 19.2MHz 19.68MHz 19.68MHz -

Freq. Stabillity (F

RX - 80 MHz) ± 150 Hz (FRX - 45 MHz) ± 300Hz ± 2.5ppm -

Operating Temperature -30

C ~ +60 oC -30 oC ~ +60 oC -30 oC ~ +60 oC-

Supply Voltage 3.80V

Size and Weight STD : 113 * 47 * 22mm, 900mAh

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2-2

Specification

2-2 1.9GHz CDMA(US PCS)

GENERAL

Frequency Range

. Transmitter : 1851.25 ~ 1908.75MHz . Receiver : 1931.25 ~ 1988.75MHz

Channel Bandwidth : 1.23MHz

Channel Spacing : 50kHz

Number of Channels : 1200

Duplex Seperation : 80 MHz

Type of Emission : 1M25F9W

Input/Output Impedance : 50 ohms

Intermediate Freequency

. Transmitter : 263.6MHz . Receiver : 183.6MHz

Local Frequency

. Transmitter : 1st(FTX +263.6MHz), 2nd(527.2MHz) . Receiver : 1st(FRX +183.6MHz), 2nd(367.2MHz)

TCXO Frequency : 19.2MHz

Frequency Stability : (FRX-80MHz) +/- 150Hz

Operation Temperature : -30deg ±60deg

Supply Voltage : +3.8V

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2-3

Specification

TRANSMITTER

Waveform Quality : 0.944 or more

Open Loop Power Control Range

. -25dBm : -60.5dBm ~ -41.5dBm . -65dBm : -20.5dBm ~ +1.5dBm . -104dBm : +15.0dBm ~ +25.5dBm

Minimum Tx Power Control : below -50dBm

Closed Loop Power Control Range : +/-24dB

Maximum RF Output Power : 25.5dBm

Occupied Bandwidth : 1.23MHz

Conducted Spurious Emission @1.25 MHz : -42dBc/30kHz

RECEIVER

Rx Sensitivity and Dynamic Range : -104dBm, FER=0.5% or less

: -25dBm, FER=0.5% or less

Conducted Spurious Emission

. 1930~1990 MHz : <-81dBm . 1850~1910 MHz : <-61dBm . All Other Frequencies : <-47dBm

Single Tone Desensitization : lower than 1 %

. Rx power level = -101dBm . Tone power level = -30dBm . Tone offset from carrier = +/-1.25 MHz

Intermodulation Spurious Response Attenuation : lower than 1 %

. Rx power = -101dBm . Tone 1 power = -43dBm . Tone 1 power = -43dBm . Tone 1 offset from carrier = +/-1.25 MHz . Tone 2 offset from carrier = +/-2.05 MHz

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2-4

Specification

2-3 800MHz CDMA

GENERAL

Frequency Range

. Transmitter : 824.70 ~ 848.31MHz . Receiver : 869.70 ~ 893.31MHz

Channel Bandwidth : 1.23MHz

Channel Spacing : 30kHz

Number of Channels : 20FA

Duplex Seperation : 45 MHz

Type of Emission : 1M25F9W

Input/Output Impedance : 50 ohms

Intermediate Freequency

. Transmitter : 228.6MHz . Receiver : 183.6MHz

Local Frequency

. Transmitter : 1st(FTX +228.6MHz), 2nd(457.2MHz) . Receiver : 1st(FRX +183.6MHz), 2nd(367.2MHz)

TCXO Frequency : 19.2MHz

Frequency Stability : (FRX-45MHz) +/- 300Hz

Operation Temperature : -30deg ~ 60deg

Supply Voltage : +3.8V

TRANSMITTER

Waveform Quality : 0.944 or more

Open Loop Power Control Range . -25dBm : -57.5dBm ~ -38.5dBm . -65dBm : -17.5dBm ~ +1.5dBm . -104dBm : +18.0dBm ~ +30dBm

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2-5

Specification

Minimum Tx Power Control : below -50dBm

Closed Loop Power Control Range : +/-24dB

Maximum RF Output Power : 26dBm

Occupied Bandwidth : 1.23MHz

Conducted Spurious Emission @900 KHz : -42dBc/30kHz

@1.25 MHz : -54dBc/30kHz

RECEIVER

Rx Sensitivity and Dynamic Range : -104dBm, FER=0.5% or less

: -25dBm, FER=0.5% or less

Conducted Spurious Emission

. 869~894 MHz : <-81dBm . 824~849 MHz : <-61dBm

All Other Frequencies : <-47dBm

Single Tone Desensitization : lower than 1 %

. Rx power level = -101dBm . Tone power level = -30dBm . Tone offset from carrier = +/-900KHz

Intermodulation Spurious Response Attenuation : lower than 1 %

. Tone 1 offset from carrier = +/-900KHz . Tone 2 offset from carrier = +/-1.700MHz

- Test 1, 2 Rx power = -101dBm Tone 1 power = -43dBm Tone 2 power = -43dBm

- Test 3, 4 Rx power = -90dBm Tone 1 power = -32dBm Tone 2 power = -32dBm

- Test 5, 6 Rx power = -79dBm Tone 1 power = -21dBm Tone 2 power = -21dBm

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2-6

Specification

2-4 800MHz AMPS

GENERAL

Frequency Range

. Transmitter : 824.04°≠848.97 MHz . Receiver : 869.04°≠893.97 MHz

Channel Spacing : 30kHz

Number of Channels : 832

Duplex Spacing : 45MHz

Frequency Stability : +/-2.5ppm(-30deg°≠ 60deg, -22°£F °≠140°£F)

Modulation/Demodulation

. Voice : FM . Data : PM

Operating Temperature : -30deg°≠ 60deg, -22°£F °≠ 140°£F

Supply Voltate : 3.8V

TRANSMITTER

RF output power : 27dBm

Carrier ON/OFF conditions

. "ON" Condition : within +/-3dB of specification output(in 2 ms) . "OFF" Condition : below -60dBm(in 2ms)

Compresssor

. Compression Rate : 2 : 1 . Attack Time : 3ms . Recovery Time : 13.5ms . Reference Input : input power level for producing a nominal +/-2.9kHz

: peak frequency deviation of transmitted carrier

Preamphasis : 6dB/OCT within 0.3 °≠ 3 kHz

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2-7

Specification

Maximum Frequency Deviation

. F3 of G3 : +/-12 kHz . Supervisory Audio Tone : +/-2 kHz(+/-10%) . Signaling Tone : +/-8 kHz(+/-10%) . Wideband Data : +/-8 kHz(+/-10%)

Post Deviation Limiter Filter

. 3.0 ~ 5.9 kHz : above 40 LOG(F/3000)dB . 5.9 ~ 6.1 kHz : above 35dB . 6.1 ~ 15 kHz : above 40 LOG(F/3000)dB . Over 15 kHz : above 28 dB

Spectrum Noise Suppression

. For all modulation

fo +20 kHz °≠ fo + 45 kHz : above 26dB

. For modulation by voice and SAT

fo + 45 kHz : above 63dB+10LOG(PY)dB

. For modulation by WBD(without SAT) and ST(with SAT)

fo + 45 kHz ~ fo + 60 kHz : above 45 dB fo + 60 kHz ~ fo + 90 kHz : above 65 dB fo + 90 kHz ~ 2 fo : above 63 dB + 10 LOG(PY) dB

( where fo = carrier frequency

PY=mean output power in watts )

Harmonic and conducted Spurious Emissions : below 43 + 10 LOG(PY) dB

RECEIVER

De-emphasis : -6dB/OCT within 0.3 ~ 3 kHz

Expandor

. Expandor Rate : 1 : 2 . Attack time : within 3 ms . Recovery Time : within 13.5 ms . Reference input : output power level to a 1000Hz tone from a

carrier within +/-2.9 kHz peak frequency deviation

Sensitivity : 12 dB SINAD/-116dBm

Intermodulation Spurious Response Attenuation : above 65dB

RSSI Range : above 60dB

Protection Against Spurious Response Interference : above 60dB

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2-8

Specification

In Band Conducted Spurious Emission

. Transmit Band : below -60 dBm . Receive Band : below -80 dBm

Out of Band Conducted Spurious Emissions : below -47dBm

. Radiated Spurious Emission

Frequency Range : Maximum Allowable EIRP

25 ~ 70MHz : -45dBm 70 ~ 130MHz : -41dBm 130 ~ 174 MHz : -41 ~ -32dBm 174 ~ 260 MHz : -32 dBm 260 ~ 470 MHz : -32 ~ -26 dBm 470 ~ 1G MHz : -21 dBm

2-5 1500MHz GPS

GENERAL

Frequency Range : 1574~1576 MHz

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2-9

Specification

IN IDLE MODE

IN CONVERSATION MODE

1 Sxxxxx : SID (System Identification) toggle

Nxxxxx : NID (Network Identification) toggle

2 SIx : Slot cycle index (lowest between the system

and the phone will be used)

1. SI0 : Slot Index 0

2. SI1 : Slot Index 1

3. SI2 : Slot Index 2

3 Handset Status : 0 - NO SVC

1 - Synchronization 2 - Paging (Idle) 3 - Reg. Access state 4 - Traffic Initialization 5 - Waiting for order 6 - Waiting for answer 7 - Conversation state 8 - Exit

4 T-xx : Tx adjust, Value ranges from -63~+63dB

5 Dxxx : Sector power in dBm

6 -xx : ec/lo

7 Pxxx : PN offset

8 CHxxxx : Channel number

9 TV : Tx vocoder rate (8 is full rate, 1 is 1/8th rate)

10 RV : Rx vocoder rate (8 is full rate, 1 is 1/8th rate)

11 xx : Walsh code used in traffic channel

12 System acquisition state

2-6 PCS Debug Display Information

To select debug display mode : Press [MENU] + [0] + [0], and press [0] + [4] + [0] + [7] + [9] + [3], and press [1].

Sxxxxx SIx x T - xx Dxxx - xx Pxxx CHxxxx xx xx

6 8

2 3

TVx RVx xx x T - xx Dxxx - xx Pxxx CHxxxx xx xx

10 11

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2-10

Specification

1 SIDxxxxx : AMPS Home System ID

2 PWRx : Power Level 0 ~ 7

3 SATx : Supervisory Audio Tone code (0 ~ 2)

4 x (Using Frequency Band) : A Band or B Band

5 RSSIxxx : RSSI value

6 CHxxx : Channel number

7 Handset Status : 1 - Initialization state

2 - Idle state 3 - System Access state 4 - Voice channel state

8 System acquisition state

2-7 AMPS Debug Display Information

To select debug display mode : Press [MENU] + [0] + [0], and press [0] + [4] + [0] + [7] + [9] + [3], and press [1].

SIDxxxxx x x PWRx RSSIxxx SATx CHxxxx xx xx

7 4

3. Installation

3-1 Installing the Battery

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3-1

To attach the battery to your phone:

1. Gently place the battery into the provided slots on the underside of the phone.

2. Slide the top end of the battery up (The top end of the battery displays the word Samsung in raised letters.) until you hear it click into place.

To remove the battery from your phone:

1. Turn the phone off (by pressing and holding [PWR] until the closing animation begins).

2. On the back side of the phone, hold the button down and push the battery toward the bottom edge of the phone. The battery will then lift or fall away from the phone.

3-2 Using the travel adaptor

1. With the battery in position in the phone, attach the cord from the travel adaptor by plugging it into the adaptor outlet at the bottom of the phone.

2. Connect the adaptor to a standard 110/220 free volt AC wall outlet. The battery will begin charging immediately, and the LED (located at the top of your phone) will light and remain red while the battery icon animates, the icon will remain animated, even if the phone is turned off during charging.

3. The LED indicates the status of the battery being charged.

•Red indicates that the battery is charging.

•Green indicates that the battery is fully charged.

•Yellow indicates (1) the battery is not seated correctly in the phone, (2) the adaptor is not plugged in correctly, or (3) the battery is inoperable. Please check the adaptor and/or battery.

4. You can make a phone call when the phone is plugged into the travel adaptor. The adaptor will continue to charge the battery even when you are making the call.

Specifications using DTC (Desk Top Charger)

Battery Type Standard Battery

(Li-ion, 900mAh)

Charging Time 2:30 hours

SEC Code GH43-00545A

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3-2

Installation

3-3 For Mobile Mount

3-3-1 Cradle

1. Choose a location where it is easy to reach and does not interfere with the driver’s safe operation of the car.

2. Separate the two halves of the clamshell by removing the two large slotted screws. See the figure 3-2.

3. Drill holes and mount the lower half of the clamshell by using the screws.

4. Place the cradle onto the remaining half of the clamshell and assemble them by using the screws.

5. Reassemble the two halves of the clamshell together. Adjust the mounting angle and tighten the two slotted screws.

Figure 3-2 Cradle Installation

CLAM SHELL MOUNT UPPER

CLAM SHELL MOUNT LOWER

CRADLE

FIXED SCREW

CAR

SCH-A310

MAIN PHONE

HANDS

FREE BOX

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3-3

Installation

3-3-2 Hands-Free Box

1. Drill holes in a proper location for the handsfree box, attach the mounting bracket by using the screws. See the figure 3-3.

2. Install the hands-free box into the bracket.

3-3-3 Speaker

1. Install the speaker into the appropriate position.

3-3-4 Hands-Free Microphone

1. It is recommended to install the microphone where it is 30-45 cm (12-18”) away from the driver. Choose the location where is least susceptible to interference caused by external noise sources, ie, adjacent windows, car audio speakers, etc. Normal place is the sun visor.

2. Once the microphone has been correctly positioned, connect the microphone wire to the MIC jack on the hands-free box.

Figure 3-3 Hands-Free Box Installation

MOUNTING BRACKET

CAR

3-3-5 Cables

1. Connect the cradle and the hands-free box with the data cable.

2. Connect the red wire to the battery (+) terminal, black wire to the vehicle chassis, brown wire to the Car Audio Mute port and orange wire to the ignition port in the key box of vehicle or battery (+) terminal.

3. Connect the other end of the power cable to the PWR jack of the hands-free box.

Notes:

•It is recommended to connect the power cable directly to the battery to avoid power noise.

•Make sure the connection between the battery (-) terminal and vehicle chassis is made correctly.

•Make sure the fuse having a proper capacity is used on the power cable.

•Make sure the cables do not pass over any sharp metal edge that may damage it.

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3-4

Installation

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4-1

4. NAM Programming

4-1 NAM programming

Programming of all NAM parameters, e.g. Service Security Code, MCC, MNC, MIN#, CDMA Channel#, vocoder rate, MOB_TERM, SID, SID/NID pairs, Slot Cycle Index, etc.

1) Press “Menu 6, ∗” Enter SPC Code “000000” Use Right navigation key to select items to program.

2) You can select MORE (Menu) when “Basic NAM 1 programming is complete.” displays. Select if you want to program more detailed items than shown in basic NAM programming. Press OK to save or Right navigation key to proceed to next item.

-> MORE programming not a required for NAM programming.

3) To toggle between settings, e.g. Home SID/NID pairs or selecting between Yes/No, use the Up/Down navigation key:

A. For changing Home SID/NID pairs, select from SID/NID pair numbers 01 to 20 by pressing Up

navigation key Press [edit] by pressing Menu key to change setting Press OK key to save setting.

B. For changing Forn SID or NID Registration, Home Sys. Registration, etc. press Up/Down navigation

key to select between Yes or No. Press OK key to save setting.

4) Press End Key to save & exit NAM programming.

4-2 Field Debug Screen and Test Calls

1) Press “Menu 0, ∗” Enter “000000” ;

1 ; Debug Screen 2 : Test Calls:

Markov New 8K, Markov New 13K, Loop Back 8K, Loopback 13K, TDSO Call Simple, TDSO Full

2) Repeat above 1) to exit Debug screen

4-3 A-Key programming via Keypad

1) Press “Menu 6, ∗” Enter SPC Code “000000” Menu (Soft key) - then you will see “Press[AKEY] to continue AKEY: “ Menu ([AKEY] ) Enter the 20-digit AKEY. Press “OK” Key to save value.

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4-2

NAM Programming

4-4 Channel Preset mode

1) Press “4 7 ∗ 6 8 # 1 3 5 8 0” in idle mode 001 021 and then:

for PRL based system selection enter 00000 and save(OK key). for AMPS ; 10000 for System A, 10001 for System B for 800MHz CDMA ; 2XXXX (XXXX is CDMA channel number) for 1.9GHz CDMA ; 3XXXX (XXXX is PCS Channel number)

2) Press OK or “∗ Shift” key to save mode/channel value.

3) When “Saved” displays briefly, press 002 to exit test mode programming

4-5 MRU Table Review and Reset

You can review upto 12 system and channel information from the MRU Table, or reset the entire MRU table as follows:

1) Press “4 7 ∗ 6 8 # 1 3 5 8 0” in idle mode 001 031 (MRU2 TABLE), then:

“MRU00: yzxxxx” where “y” is Mode definition(1; Analog, 2:Digital),

“z” is Band Class (0; 800MHz, 1; 1.9GHz), and “xxxx” is Channel number, or A or B band for AMPS. “MRU00” to “MRU11”, total of 12 MRU entries available.

Ex) for CDMA 800MHz Channel 384 in 4th MRU entry order:

“MRU03: 200384” will display.

Ex) for PCS 1.9GHz Channel 150 in 7th MRU entry order:

“MRU06: 210150” will display.

Ex) for AMPS A-band in1st MRU entry order: “MRU00: 100000” will display.

for AMPS B-band in 2nd entry order: “MRU01: 100001” will display.

2) To toggle up and down the MRU entry numbers from 00 to 11, press Up or Down navigation key.

3) To reset entire MRU table (00 to 11), enter “000000” at “MRU00:” setting, then press OK or “∗ Shift” key.

4) When “Saved” displays briefly, press 002 to exit test mode programming

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4-3

NAM Programming

4-6 Using DM Data (over-the-air messaging)

1) Press “Menu, 0, ∗” in idle mode Enter SPC Code “000000” Press “5” Port Map.

2) Select “U1:DM&DL, U2:NULL” for Samsung DM, or “U1:QC_DM, U2:NULL” for Qualcomm DM.

3) If “U1:QC_DM, U2:NULL” is selected, the Qualcomm DM COM port must be set to COM1 and

Baud rate to 38400.

(Note) U1: UART 1, U2: UART 2

DM& DL : DM and Download Mode ( Please set this mode when you take a logging.) DS & HF : Handsfree Mode QC_DM : Qualcomm DM Mode

4-7 Making Markov Test Calls

1) Originate a desired phone number in normal idle mode to create an outgoing call list.

2) Press “Menu 0, ∗” Enter SPC Code “000000” Press “2”

3) Make a Markov Call by selecting “Markov New 13k”.

4) The MS will originate the Markov call using the first entry in the outgoing call list.

5) If the outgoing call list is empty(no outgoing call made), the MS will originate to a default number of

'1234567'.

4-8 Fax & Data Calls:

1) Press “Menu 8, 7” in idle mode

2) Toggle among “Data/Fax Off”, “Fax for Next Call”, “Fax until Powered Off”, “Modem for Next Call”,

“Modem until Powered Off” using Navigation Up/Down Key.

3) If “Fax/Data Off” is selected, phone will display “No incoming data/fax calls can be received”.

4) If “Fax for Next Call” is selected, phone will display “Waiting for fax call (no voice) for 10min”.

5) If “Fax until Powered Off” is selected, phone will display “No incomming voice calls can be received”.

6) If “Modem for Next Call” is selected, phone will display “Waiting for data call (no voice) for 10min”.

7) If “Modem until Powered Off” is selected, phone will display “No incomming voice calls can be received”.

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4-4

NAM Programming

8) Text notification of “∗Data Only∗” or “∗Fax Only∗“ will be displayed.

9) Outgoing Fax/Data Calls: Using a computing device application software, originate calls in any state in idle mode. (For details, refer to the Draft User Manual enclosed)

4-9 8K/13K Mobile Originated SMS

1) Set Vocoder Rate(8K EVRC, 13K) via NAM Programming Enter [Menu], 9, ∗, “000000”, “4: Voice SO “ Then Choose desired vocoder rate from “Default”, “EVRC Call”, and “13k Call”. Press OK key to save setting, then press END key to exit.

2) In idle mode, press “OK” Key to select from “1: New Messages”, “2: Voice”, “3: Text Inbox”, or

“4: Text Outbox”.

3) Select “1: New Messages” for Mobile Originated SMS messaging.

4) Press Destination mobile number or e-mail address thru the keypad then press OK key.

5) Enter text message at “2:Message” then press OK key to store. Press Menu key to select from ABC,

Number, T-9 Word, or Symbol mode.

6) Enter Call back number at “3:Call Back” then press OK key to store.

7) At “4: Options”, scroll using Up/Down navigation key, and select from options using Left/Right navigation key for the “Priority” level, “Validity” Period, “Send Later” option, “Delivery Ack” On or Off, or “Save Message” option.

8) At “5: Action”, press SEND key to transmit message, OK key to save message to Filed folder (not

implemented yet), “C” key to cancel MO messaging, or END key to quit.

9) If Save Message is set to “Auto Save”, the sent message is stored in the Txt Outbox.

4-10 Voice Privacy

1) In idle mode, press “Menu, 0” Enter “WXYZ” (where WXYZ is the last 4 digits of

the MIN number) Press “8” (Voice Privacy) Select from “standard” or “enhanced” using the Up/Down navigation key down then press OK key to save value.

2) In conversation mode, press “Menu, 8” Select from “standard” or “enhanced” using the Up/Down navigation key down then press OK key to save value.

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4-5

NAM Programming

4-11 Phone.com Browser IP Address & Port, Linger Timer Setting

1) IP Address

- Press “Menu, 3, 0” Enter “WXYZ” (where WXYZ is the last 4 digits of the MIN#)

- Press “1: Gateway”, then select “1: Address” for IP Address setting change. Select from Address 1, 2, or 3, then scroll between IP “A”, “B”, or “C” using navigation key.

- Press OK key to access IP “A”, “B”, or “C”, enter new IP setting, then press OK key to store.

2) Port

- Press “Menu, 3, 0” Enter “WXYZ” (where WXYZ is the last 4 digits of the MIN#)

- Press “1: Gateway”, then select “2: Port” for port number setting change. Select from Port 1, 2, or 3 for IP Address 1, 2, or 3, then select from Port A, Port B, or Port C.

- Press OK key to access Port A, B, or C, enter new Port number, then press OK key to store.

3) Linger Timer

- Press “Menu, 3, 0” Enter “WXYZ” (where WXYZ is the last 4 digits of the MIN#)

- Press “2: LingerTime”, then press [OK/Message] once.

- Enter the Default Linger Timer value ranging from 0 to 180 seconds, then press [OK/Message] to save setting.

4-12 Auto Answer

1) Press “Menu, 8, 2” for Auto Answer.

2) Toggle using the navigation keys between, Off, after 1 ring, after 3 rings, and after 5 rings.

3)Press [OK/Message] to save setting. The mobile will automatically answer the incoming call after the preset number of ring tones. (Useful feature for automatic equipment testing)

5. Product Support Tools

5-1 General

IMPORTANT INFORMATION Purpose

The Product Support Tool (PST) offers you the ability to interface with the SAMSUNG DBDM telephone using a PC. With this tool you can program the phones network system requirements and functionality, swap phone data, and download software upgrades. This document supports UniPST version x.xx.

NOTE: This software must be executed in the Windows95/98 mode.

EQUIPMENT REQUIRED

Make sure you have the following equipment setup:

1. Minimum PC configuration: 586 CPU, 16MB RAM, Windows95/98, 5MB of disk space free for software upgrade.

2. PST Software with appropriate cable (DM Cable for SAMSUNG DBDM phone).

3. Serial Port (16550 Serial Interface Card).

4. Power Supply (3.8 V) or Battery.

INSTALLATION

Software

1.Insert the PST floppy disk into drive (A:\).

2.Create an appropriate directory on the C:\ drive for PST software, Execute Setup.exe file,

The installation program creates folder and task bar on the windows95/98 start bar.

SAMSUNG DBDM Phone

The serial port should be configured to COM1 or COM2. Use the following procedure to connect the phone, cable, and PC . Plug the female end of the DM Cable into the 16550 card. Pull the black rubber connector away from the socket at the base of the phone. Plug the special connector on the cable into the socket at the base of the phone.

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Phone

DB Cable

(Parts No.:GH39-30525A)

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Product Support Tools

5-2. PST (Product Support Tool)

5-2-1 Getting Started

MAIN MENU SCREEN

1. At the Windows95/98, Double Click “UniPst.exe”.

2. The Main Menu Screen will be displayed. The Main Menu Screen shows the basic tasks that are available.

CAUTION: DO NOT attempt to program phone with a low battery.

PST SETUP

UniPst supports SAMSUNG DBDM portable telephone. You can select serial port COM1 or COM2.

5-2-2 Operation Procedure

Service Programming The Service Programming screens enable you to set and change the service activation parameters of the phones. These items can be changed individually or as a group via the “Edit Items” Property Sheet of the PST. There are several pages on the Service Programming Property Sheet (See below Figure).

Read Data from File

Click “open” icon to select the name of a file whose extension is “mmc”. The values will be read from the named file, and will initialize the parameter values seen on the Service programming screen

Read Data from Phone

Click Read from the Phone icon to upload the current programmable parameters of the phone. The values are read from the phone, so the phone must have the power ON and be properly connected to the PST.

NOTE: To actually view the data you need to go to the Edit Items screens.

Edit Items

Click this icon to edit Number Assignment Module (NAM) items or UI items.

There are two types of screens:

1. Parameters associated with a particular Number Assignment Module (NAM)

2. UI items settings

Phone Book

Click this icon to edit Phone Book. While you edit cell, you can use <Enter> and < UP , DOWN,LEFT,LIGHT Arrow> and <SPACE> key. If you want to edit phone number or name , you must move rectangle box to cell where you want to edit , Write it down . if <UP and DOWN Arrow> key is pressed, the cursor moves to next cell or previous cell.

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Product Support Tools

Save Data to File

Click this icon to save the current parameters to a file. Once you enter a filename, Click <OK> button to write all current parameters to that file. This way the same information can be downloaded into multiple phones.

Write to Phone

Click this icon to write the selected parameter values to the phone. Writing the selected values to the phone may take up to a minute. If there are dependencies in a field you can make all the changes in the proper fields and download the information all together. If you intend to use this “Write to Phone” feature, it is recommended that you do a “Read Data from Phone” first, and then make the changes, so that nothing gets inadvertently overwritten.

NOTE: DO NOT TOUCH THE PHONE WHILE WRITING IS IN PROGRESS.

Software Download and Upgrade Screen

To begin a software upgrade or download, perform the following steps:

1. From the main menu screen choose DOWNLOAD MODE? Click open icon to choose a BIN file of the new software to be loaded. Choose the appropriate BIN file, then Click <Open> (see below figure).

2. Click Download? to begin downloading the file. You will notice various messages and a progress bar that informs the user what percentage of the downloading has already occurred.

3. Click Mode Select box, then Select SERVICE MODE?to return to the Service Mode Screen.

NOTE: DO NOT POWER OFF WHILE THE PHONE IS BEING DOWNLOADED!

6. Circuit Description

6-1 Logic Section

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6-1-1 Power Supply

To power on the phone, Pressing the PWR key with the battery installed will short the V_BAT and ON_SW signal. The V_DC, which is connected with V_BAT, will be turned on simultaneously, The V_PD and V_IF LDOs outputs of Regulator(U201, U322) are turned on assuming V_BAT is greater than

2.85V.

Pressing the PWR key( )of the keypad for a few seconds, The V_BAT voltage is applied to the ON_SW, the ON_SW signal will transition high when the PWR_HOLD signal is high.

The low state ONO\signal will be detected by the MSM, when PWR_HOLD signal is high, to set the PWR_HOLD signal low and power off the phone.

Once the PWR_HOLD signal is low all the LDOs output of the Regulator(U201, U322)will be powered off after typically 60ms delay and all the logic of the PMIC will be reset to the shutdown condition.

The V_PD output voltage of Regulator(U201) is connected with V_MEM(used in memory), V_LCD(used in LCD), V_MSMD(used in the digital parts of MSM).

6-1-2 Inner Charging Circuit Part

The most important function of the charger shall be done in the LTC1734(U240). When the phone attached a battery is connected with travel charging adapter, the inner charging circuit of the LTC1734(U240) will charge by the constant fast charge current. When battery reaches regulation voltage of 4.2V (default charging voltage for Li+mode), the charge current drops quickly to 0mA by the programmed data of the LTC1734 controlled from the MSM.

-Input voltage range : 4.75~8V

-Charging Temperature :0°C~40°C

-Charging Method : Constant Voltage/Current

-Charging Current : Max 550mA

-Charging Time : Standard (550mAh) 1.5 ~ 2 Hrs Extended (900mAh) 3 ~ 3.5 Hrs

-Charging Mode : 1. Charging - RED Lamp

2. Completion -GREEN Lamp

-Charging Battery Regulation Voltage

1. Min 4.158V, Typical 4.2V, Max 4.242V (at T

A : 0°C to +85°C)

2. Min 4.137V, Typical 4.2V, Max 4.263V (at T

A : -40°C to +85°C)

-Over Battery Protection Voltage : Typical 5.2V

Universal Serial Bus Interface(U250)

SCH-A310 supports a Universal Serial Bus(USB) interface, by the MSM 5100, to provide an efficient interconnection between the mobile phone and a Personal Computer(PC). The MSM 5100's USB interface is designed to comply with the Universal Serial Bus Specification, Revision 1.1. The USB interface of SCH-A310 and can be used to transfer over-the-air data, or voice PCM samples between the mobile phone and the USB host. An external USB transceiver(U250) and 48MHz crystal oscillator(OSC110) are required to implement the USB interface.

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Circuit Description

6-1-3 Logic Part

The logic part consists of MSM, FROM, SRAM, EEPROM, LCD and other input and output peripherals.

MOBILE SYSTEM MODEM(U100:MSM5100)

The MSM5100 is designed to the IS-2000 standard and enables up to a doubling of overall IS-95A/B voice capacity and new, higher-data rate services. The MSM5100 can support 153.6 kilobits per second(kbps), providing manufacturers worldwide ability to develop consumer products that provide voice, high-speed data and video over wireless networks. The MSM5100 chipset and system software can support the phase1 1°øMC of the 3G CDMA Multi Carrier IS-2000 standard, Release 0.

The MSM5100 device is available in the same 208pin FBGA production package allowing significant reuse of existing MSM3100 chipset designs. The MSM5100 integrates functions that support a trimode CDMA/FM subscriber unit. Subsystems within the MSM5100 device include a CDMA processor, a Digital FM(DFM) processor, a QDSP for voice compression, an ARM7TDMI microprocessor. Also integrated in the MSM5100 device are analog functions such as an audio voice codec, PLL, transmit DACS, ADCS, memories, USB controller, peripheral interfaces, and an enhanced clock. It is one of the most important components of the CDMA cellular phone. The interface circuitry consists of reset circuit, address bus (A0-A21), data bus(D0-D15), and memory controls. The TCXO clock of 19.68Mhz is used as the clock of SCH-A310 model.

FLASH ROM AND STATIC RAM (U120)

One 32MBIT Flash ROMs and 8MBIT Flash ROM(U120) is used to store the cellular phone's executable program and necessary data files and a temporary data space to store the internal flag informations, call processing data, timer data, and other temporary data.

EEPROM(U190)

A 256KBIT EEPROM(U190) is used to store ESN, NAM information, telephone directory, SMS messages and other important information of the phone.

KEYPAD

A key pad is used for the user interface function. For key recognition, key matrix is operated by using signals SCAN0-5 and KEY0-3 of the MSM.

LCD MODULE

The LCD module is a 128 X 128 dots graphic LCD with one line of ICONS. Watch LCD is a 96 X 32 dots graphic LCD. The LCD contains a controller which will display the information by 8-bit data from the MSM. An external backlight circuitry is used for easy operation in the dark.

6-1-4 RF Interface Part

CDMA, FM DATA INTERFACE

•I_OUT, I_OUT_N, Q_OUT, Q_OUT_N: TX analog signal used during both CDMA and FM mode.

•C_RX_IDATA0-3 and C_RX_QDATA0-3: RX data bus used during CDMA mode.

•FM_RX_IDATA and FM_RX_QDATA: RX data bus used during FM mode.

CLOCK

TCXO_CLK: Reference clock used for generation of CHIPX8. OSC141 : 32.768KHz sleep crystal. Clock used during SLEEP.

ADC INTERFACE

Eight HK ADC are internally placed in the MSM. These ADCs are used to read battery voltage, battery typeand temperature.

RF INTERFACE

TX: TX_AGC_ADJ port is used to control the TX

power level and PA_ON signal is used to control the power amplifier.

RX: RX_AGC_ADJ port is used to control the RX

gain and TRK_LO_ADJ is used to compensate the TCXO module.

6-1-5 Audio Part

Internal CODEC in the MSM contains software controlled amplifier for both the receiving and transmitting sections. Also, the vocoding schemes used will be 13kbps QCELP or 8K EVRC. Both QCELP and EVRC vocoding are performed by the MSM.

DIGITAL FM BLOCK

The digital FM processor is included in the Mobile Station Modem(MSM) and brief descriptions of each block are as follows :

FM TRANSMIT PROCESSOR

Pre-Emphasis Circuit

This part features +6dB/oct to reduce signal loss and noise in Tx path.

Compressor

The compressor features 2:1 level compressor to reduce signal loss and noise in Tx path. The zero crossing level of the compressor is ±2.9 kHz/dev, attack time is 3mS, and release time is 13.5mS.

Limiter

The limiter performs to cut ±0.53 Vp-p or higher audio signal level so that the FM frequency deviation is not over ±12 kHz/dev. The function is used to avoid confusion over phone line. LPF is used to reduce a specific high frequency of limited signal.

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Circuit Description

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