Samsung SCH-1500 series User manual

SERVICE
PORTABLE CELLULAR
TELEPHONE
SCH-1500 Series
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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. PCB Diagrams
11. Electrical Parts List
12. Block & Circuit Diagrams

Samsung Electronics Co.,Ltd.
ELECTRONICS

1. General Introduction
The SCH-1500 DBDM phone functions as both analog phone working in AMPS (Advanced Mobile Phone
Service) mode and digital phone working in PCS (Personal Communication Service) mode.
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 IS-
95A(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.
CDMA Receiver/Transmitter Specifications and Requirements
The Subscriber Unit shall comply with ANSI J-STD-008 and meet or exceed TIA/EIA IS-98A. 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-95A and meet or exceed TIA/EIA IS-95. The Subscriber Unit
shall comply with Mobile Station Power Class III (600mW).
Samsung Electronics 1-1

1-2 Samsung Electronics
General Introduction
Memo

2. Specification
2-1 General
Frequency Range PCS Mode AMPS Mode
Transmitter : 1850 ~ 1910 MHz 824 ~ 849 MHz
Receiver : 1930 ~ 1990 MHz 869 ~ 894 MHz
Channel Spacing : 1.25 MHz 30 kHz
Number of Channels : 1200 832
Duplex Spacing : 80 MHz 45 MHz
Frequency Stability : (FRX - 80MHz) ± 150Hz ± 2.5 ppm
Operating Temperature : -30 oC ~ 60 oC
Operating Voltage
HHP : 7.2V DC (± 10%)
Hands-free : 13.7V DC (± 10%)
Size and Weight
including standard battery : 14.6 x 5.4 x 2.5 cm, 191 cc, 220 g (7.7 ounces)
including extended-life battery : 14.6 x 5.4 x 3.35 cm, 250 cc, 226 g (7.9 ounces)
Samsung Electronics 2-1

2-2 Samsung Electronics
Specification
2-2 AMPS Mode
TRANSMITTER
RF output power : 0.6 W (+2/ - 4 dB)
Carrier ON/OFF Conditions
ÒONÓ Condition : within ± 3 dB of specification output (in 2mS)
ÒOFFÓ 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
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 : ± 8kHz (± 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 40 LOG (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 + 10 LOG (Py) dB

Samsung Electronics 2-3
Specification
Frequency Range Maximum Allowable EIRP
25 ~ 70 MHz -45 dBm
70 ~ 130 MHz -41 dBm
130 ~ 174 MHz -41 ~ -32 dBm
174 ~ 260 MHz -32 dBm
260 ~ 470 MHz -32 ~ -26 dBm
470 ~ 1 GHz -21 dBm
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

Specification
2-3 PCS Mode
TRANSMITTER
Waveform Quality : 0.944 or more
Open loop Power Control Range
-25 dBm : -60.5 dBm ~ 41.5 dBm
-65 dBm : -20.5 dBm ~ -1.5 dBm
-104 dBm : +15.0 dBm ~ +30.0 dBm
Minimum Tx Power Control : -50 dBm below
Closed Loop Power Control Range : ±24 dB
Maximum RF Output Power : 200 mW (+23 dBm)
Occupied Bandwidth : 1.23 MHz
Conducted Spurious Emissions @ 1.25 MHz : -42 dBc/30 KHz
RECEIVER
Rx Sensitivity and Dynamic Range : -104 dBm, FER=0.5% or less
(Rate Set 1) : -25 dBm, FER=0.5% or less
Conducted Spurious Emission
1930 ~ 1990 MHz : <-81 dBm
1850 ~ 1910 MHz : <-61 dBm
All Other Frequencies : <-47 dBm
Single Tone Desensitization : lower than 1%
Rx power = -101 dBm
Tone power = -30 dBm
Tone offset from carrier = ±1.25 MHz
Intermodulation Spurious Response Attenuation : lower than 1%
Rx power = -101 dBm
Tone power 1 = -43 dBm
Tone power 2 = -43 dBm
Tone 1 offset from carrier = ±1.25 MHz
Tone 2 offset from carrier = ±2.05 MHz
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Samsung Electronics 2-5
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 +63~0~63dB
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
2-4 PCS Debug Display Information
To select debug display mode : Press [MENU] + [8] + [0], and press [0] + [4] + [0] + [7] + [9] + [3] or
press [0] + [0] + [0] + [0] + [0] + [0].
SIDxxxxx SIx x
T - xx Dxxx - xx
Pxxx CHxxxx
xx xx
1
4
7
6
8
5
12
2 3
TVx RVx xx x
T - xx Dxxx - xx
Pxxx CHxxxx
xx xx
9
3
12
10 11

Specification
2-6 Samsung Electronics
1 SIDxxxxx : AMPS Home System ID
2 PWRx : Power Level 0 ~ 7
3 SATx : Supervisory Audio Tone code (0 ~ 3)
4 x (Using Frequency Band) : A Band or B Band
5 RSSIxxx : RSSI value
6 CHxxx : Using Channel
7 Handset Status : 1 - Initialization state
2 - Idle state
3 - System Access state
4 - Voice channel state
8 System acquisition state
2-5 AMPS Debug Display Information
To select debug display mode : Press [MENU] + [8] + [0], and press [0] + [4] + [0] + [7] + [9] + [3] or
press [0] + [0] + [0] + [0] + [0] + [0].
SIDxxxxx x x
PWRx RSSIxxx
SATx CHxxxx
xx xx
1
2
3
5
6
8
7 4