Samsung SCH-3500 series User manual

SERVICE
PORTABLE CELLULAR
TELEPHONE
SCH-3500 Series
GHI
PQRS
ABC
JKL
SPACE
TUV
DEF
MNO
WXYZ
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

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1-1
1. General Introduction
The SCH-3500 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)
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.
TIA/EIA IS-95A : Mobile Station-Base Station Compatibility Standard for Dual-Mode Wideband Spread
Spectrum Cellular Systems;for the analog air interface.
TIA/EIA IS-98A : Recommended Minimum Performance Requirements for 1.8 to 2.0 GHz CDMA Personal
Stations.
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 (600 mW).

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 - 80 MHz) ± 150 Hz ± 2.5 ppm
Operating Temperature -30 oC ~ 60 oC
Operating Voltage
HHP 3.6V DC (± 10%)
Hands-free 13.7V DC (± 10%)
Size and Weight
Including standard battery 11.2 x 5.2 x 2.5 cm, 146 cc, 146 g (5.1 ounces)
Including extended-life battery 11.2 x 5.2 x 3.0 cm, 175 cc, 166 g (5.8 ounces)
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2-1

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2-2
Specification
2-2 AMPS 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
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

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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

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2-4
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 2) : -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
Tx power = +15 dBm(According to IS-98C)
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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2-5
Specification
IN IDLE MODE
IN CONVERSATION MODE
1Sxxxxx : 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
2-4 PCS Debug Display Information
To select debug display mode : Press [MENU] + [9] + [0], and press [0] + [4] + [0] + [7] + [9] + [3], and press [1].
Sxxxxx SIx x
T - xx Dxxx - xx
Pxxx CHxxxx
xx xx
1
4
76
8
5
12
2 3
TVx RVx xx x
T - xx Dxxx - xx
Pxxx CHxxxx
xx xx
9
3
12
10 11

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2-6
Specification
1SIDxxxxx : 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
2-5 AMPS Debug Display Information
To select debug display mode : Press [MENU] + [9] + [0], and press [0] + [4] + [0] + [7] + [9] + [3], and press [1].
SIDxxxxx x x
PWRx RSSIxxx
SATx CHxxxx
xx xx
1
2
35
6
8
7 4

3. Installation
3-1 Installing a Battery Pack
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3-1
Figure 3-1 Charging the Phone and Battery
1. To attach the battery pack after charging, align it
with the phone about 1cm (1/2”) away from its
place so that the two arrows on the phone are
seen, the battery charge contacts pointing
downward.
2. Slide the battery pack upwards until it clicks
firmly into position. The phone is now ready to
be turned on.
3. To remove the battery pack, release it by
pressing the button on the rear of the phone.
4. Slide the battery pack downward about 1cm
(1/2”) and lift it away from the phone.
3-2 For Desk Top Use
1. Choose a proper location to install the charger
for desk top use.
2. Plug the power cord of the charger into an
appropriate wall socket. When the power is
connected correctly, the lamps turn on briefly.
3. To charge the battery pack, insert the battery
pack into the rear slot of the charger. The lamp
marked BATT on the front panel of the charger
lights up red.
4. If you do not wish to use the phone while
charging the battery, insert the phone with the
battery pack attached into the front slot of the
charger. The lamp marked PHONE on the front
panel of the charger lights up red.
Specifications using DTC (Desk Top Charger)
Battery Type Standard Battery Extended battery
(Li-ion, 1000mAh) (Li-ion, 1600mAh)
Charging Time 3 hours 4 hours
SEC Code GH43-10316B GH43-00121A
SCH-3500 MAIN STANDARD
BATTERY
PACK (BTS350)
EXTENDED
BATTERY PACK
(BTE350)
DTC : DTC350
Press this button to
release the battery pack.

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3-2
Installation
3-3 For Mobile Mount
3-3-1 Antenna
1. Choose a proper location to install the antenna.
•The center of the roof top provides the best
performance.
•The edge of the rear trunk also provides a
good performance. However, the antenna
should be higher than the roof of the car.
•In case of on-glass antenna, you should align
the antenna base with the round plate to
connect the cables correctly.
2. Mount the antenna vertically, connect the
antenna cable.
3. Tighten the antenna nut fully.
3-3-2 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
SCH-3500
MAIN PHONE ANTENNA
CLAM SHELL
MOUNT UPPER
CLAM SHELL
MOUNT LOWER
CRADLE
FIXED SCREW
CAR
HANDS
FREE BOX
32
32