Samsung SCH-211 User manual

CDMA PORTABLE

CELLULAR TELEPHONE

SCH-211

SERVICE

Manual

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CDMA

CDMA PORTABLE CELLULAR TELEPHONE

CONTENTS

1. General Introduction

2. Specification

3. Installation

4. NAM Programming

5. Circuit Description

6. Troubleshooting

7. Exploded Views and Parts List

8. PCB Diagrams

9. Electrical Parts List

10. Block & Circuit Diagrams

Samsung Electronics Co.,Ltd.

GH68-00335A

ELECTRONICS

Samsung Electronics - Contents may change without notice.1

Specification

1. General Introduction

Samsung Electronics-Contents may change without notice. 1-1

The SCH-211 cellular phone functions as both analog cellular phone working in AMPS (Advanced Mobile

Phone Service) mode and digital cellular phone working in CDMA (Code Division Multiple Access) mode.

CDMA type digital mode applies DSSS (Direct Sequential Spread spectrum) mode which first came to be

used in the military.

The DSSS reduces channel cross talk and allow to use one frequency channel by multiple users in the same

specific area, resulting in increase of channel capacity to about ten times compared to that of analog mode

currently used.

Soft/Softer Handoff, Hard Handoff, and Dynamic RF Power Control technologies are combined into this

phone to reduce the call drop while usage.

CDMA digital cellular network consists of MSO (Mobile Switching Office), BSC (Base Station Controller), BTS

(Base Station Transmission System), and MS (Mobile Station). MS meets the specifications of the below:

¥ UIS-95A : Mobile Station-Base Station Compatibility Standard for Dual-Mode Wideband Spread Spectrum

Cellular System

¥ UIS-96A : Speech Service Option 1 Standard for Dual-Mode Wideband Spread Spectrum Cellular Systems

¥ UIS-98A : Standards for Dual-Mode Wideband Spread Spectrum Cellular Mobile Station

¥ UIS-126 : Mobile Station Loopback Service Options Standard

SCH-211 is composed of main handset, rapid charger, cradle, two batteries (1300 mAh, 850 mAh), hands-free

kit, and travel charger. Hands-Free Kit is designed to be operated in half-duplex mode taking turn-around

delay between the phone and the system into account.

Samsung Electronics - Contents may change without notice.1-2

General Introduction

MEMO

2. Specification

Samsung Electronics-Contents may change without notice. 2-1

2-1 General

Frequency Range Digital Mode Analog Mode

Transmitter : 824.64 ~ 848.37 MHz 824.04 ~ 848.97 MHz

Receiver : 869.64 ~ 893.37 MHz 869.04 ~ 893.97 MHz

Channel Spacing : 1.23 MHz 30 kHz

Number of Channels : 20 FA 832 CHs

Duplex Spacing : 45 MHz

Frequency Stability : ± 2.5 ppm (– 30 °C ~ + 60 °C : -22 °F~ 140 °F)

Operating Temperature : – 20 °C ~ + 50 °C (–4 °F~ 122 °F)

Operating Voltage

HHP : 7.2V DC (± 10 %)

Hands-free : 13.7V DC (± 10 %)

Size and Weight

including standard battery : 130 ✕51 ✕27.5 mm, 205 g (5.12 ✕2 ✕0.94 inch, 7.2 oz)

including extended-life battery : 130 ✕51 ✕37 mm, 207 g (5.12 ✕2 ✕1.46 inch, 7.4 oz)

Operating Time

Digital mode Standby Time : about 50 ~ 55 hours (with standard battery)

: about 85 ~ 90 hours (with extended-life battery)

Talk Time : about 150 min (with standard battery)

: about 250 min (with extended-life battery)

Analog Standby Time : about 10 ~ 12 hours (with standard battery)

: about 16 ~ 18 hours (with extended-life battery)

Talk Time : about 100 min (with standard battery)

: about 170 min (with extended-life battery)

2-2 Analog Mode

TRANSMITTER

RF output power : 0.6 W (+2/–4 dB)

Carrier ON/OFF Conditions

“ON” Condition : within ± 3 dB of specification output (in 2mS)

“OFF” Condition : below – 60 dBm (in 2mS)

Compressor

Compression Rate : 2:1

Attack Time : 3 mS

Recovery Time : 13.5 mS

Reference Input : Input level for producing a nominal ± 2.9 kHz peak frequency

deviation of transmitted carrier

Samsung Electronics - Contents may change without notice.2-2

Specification

Preamphasis : 6 dB/OCT within 0.3 ~ 3 kHz

Maximum Frequency Deviation

F3 of G3 : ± 12 kHz (± 10 %)

Supervisory Audio Tone : ± 2 kHz (± 10 %)

Signaling Tone : ± 8 kHz (± 10 %)

Wideband Data : ± 8 kHz (± 10 %)

Post Deviation Limiter Filter

3.0 kHz ~ 5.9 kHz : above 40LOG (F/3000) dB

5.9 kHz ~ 6.1 kHz : above 35 dB

6.1 kHz ~ 15 kHz : above 40LOG (F/3000) dB

Over 15 kHz : above 28 dB

Spectrum Noise Suppression

For All Modulation

f0+ 20 kHz ~ f0+45 kHz : above 26 dB

For Modulation by Voice and SAT

f0+45 kHz : above 63 +10LOG (Py) dB

For Modulation by WBD (without SAT) and ST (with SAT)

f0+45 kHz ~ f0+60 kHz : above 45 dB

f0+60 kHz ~ f0+90 kHz : above 65 dB

f0+90 kHz ~ 2f0: above 63 +10LOG (Py) dB

(where f0= carrier frequency

Py= mean output power in watts)

Harmonic and Conducted Spurious Emissions : above 43 +10LOG (Py) dB

RECEIVER

DE-Emphasis : – 6 dB/OCT within 0.3 ~ 3 kHz

Expander

Expansion Rate : 1:2

Attack Time : within 3 ms

Recovery Time : within 13.5 ms

Reference Input : Output level to a 1000 Hz tone from a carrier within ±2.9

kHz peak frequency deviation

Sensitivity : 12 dB SINAD/–116 dBm

Intermodulation Spurious Response Attenuation : above 65 dB

RSSI Range : above 60 dB

Protection Against Spurious Response Interference : above 60 dB

In Band Conducted Spurious Emissions

Transmit Band : below – 60 dBm

Receive Band : below – 80 dBm

Out of Band Conducted Spurious Emissions : below – 47 dBm

Radiated Spurious Emissions

Samsung Electronics-Contents may change without notice. 2-3

Specification

Frequency Range

25 ~ 70 MHz

70 ~ 130 MHz

130 ~ 174 MHz

174 ~ 260 MHz

260 ~ 470 MHz

470 ~ 1 GHz

Maximum Allowable EIRP

– 45 dBm

– 41 dBm

– 41 ~ – 32 dBm

– 32 dBm

– 32 ~ – 26 dBm

– 21 dBm

2-3 Digital Mode

Waveform Quality : above 0.944

Time Reference : within ± 1uS

RX Sensitivity : – 104 dBm, FER = within 0.5%

Dynamic Range : – 104 dBm ~ – 25 dBm, FER = within 0.5%

TX Output Power : Maximum 320 mW (25dBm)

TX Frequency Deviation : within ± 300 Hz

Occupied Band Width : 1.32 MHz

TX Conducted Spurious Emissions : 900 kHz below – 42 dBc / 30 kHz

: 1.98 MHz below – 54 dBc / 30 kHz

Minimum TX Power Control : below – 50 dBm

Open Loop Power Control : – 25 dBm – 57.0 dBm ~ – 38.5 dBm

– 65 dBm – 17.5 dBm ~ + 1.5 dBm

– 104 dBm + 18.0 dBm ~ + 30.0 dBm

Standby Output Power : below – 61 dBm

Closed Loop TX Power Control Range : Test 1 beyond ± 24 dB

Test 2 0 mS ~ 2.5 mS

Test 3 beyond ± 24 dB

Test 4 beyond ± 24 dB

Test 5 beyond ± 24 dB

Samsung Electronics - Contents may change without notice.2-4

Specification

MSC Transmitter Frequency

FA NO. CH. NO. CENTER FREQUENCY FA NO. CH. NO. CENTER FREQUENCY

1 1011 824.640MHz 11 404 837.120MHz

2 29 825.870MHz 12 445 838.350MHz

3 70 827.100MHz 13 486 839.580MHz

4 111 828.330MHz 14 527 840.810MHz

5 152 829.560MHz 15 568 842.040MHz

6 193 830.790MHz 16 609 843.270MHz

7 234 832.020MHz 17 650 844.270MHz

8 275 833.250MHz 18 697 845.910MHz

9 316 834.480MHz 19 738 847.140MHz

10 363 835.890MHz 20 779 848.370MHz

MSC Receiver Frequency

FA NO. CH. NO. CENTER FREQUENCY FA NO. CH. NO. CENTER FREQUENCY

1 1011 869.640MHz 11 404 882.120MHz

2 29 870.870MHz 12 445 883.350MHz

3 70 872.100MHz 13 486 884.580MHz

4 111 873.330MHz 14 527 885.810MHz

5 152 874.560MHz 15 568 887.040MHz

6 193 875.790MHz 16 609 888.270MHz

7 234 877.020MHz 17 650 889.270MHz

8 275 878.250MHz 18 697 890.910MHz

9 316 879.480MHz 19 738 892.140MHz

10 363 880.890MHz 20 779 893.370MHz

2-4 CDMA Debug Display Information (menu 8)

2-5 FM Debug Display Information (menu 8)

Samsung Electronics-Contents may change without notice. 2-5

Specification

IN IDLE MODE

SIDxxxxx SIx x

T– xx Rxxx – xx

Pxxx CHxxxx

➀➁➂

➃

➆➄

➅

➇

SIDxxxxx x

PWR x RSSIxxx

SATx CHxxxx

➀➂

➁

➂➅

➄

IN CONVERSATION MODE

SVx RVx xx x

T – xx Rxxx – xx

Pxxx CHxxxx

➈⑩

➂

➀Sxxxxx : SID (System ldentification) toggle

Nxxxxx : NID (Network Identification) toggle

➁ Slx : Slot cycle index (lowest between the system

and the phone will be used)

➂Handset Status : 0 - Acquisition

1 - Synchronization

2 - Paging (Idle)

3 - Traffic Initialization

4 - Traffic Mode

5 - Exit

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

➄Dxxx or Rxxx : sector power in dBm

➅-xx : ec/Io

➆Pxxx : PN offset or Pilot #

➇CHxxxx : channel number

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

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

xx : Walsh code used in traffic channel

➀SIDxxxxx : FM Home System ID

➁PWRx : Power Level 0~7

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

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

➄RSSIxxx : RSSI value

➅ CHxxx : Using Channel

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