Samsung SCH-850 Series User manual

ELECTRONIC
DUAL MODE(CDMA+AMPS)
PORTABLE
TELEPHONE
SCH-850
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3
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6 MNO 4 GHI
8 TUV
9 WXYZ 7 PQRS
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Manual
DUAL MODE TELEPHONE CONTENTS
1. Specification
2. Nam Programming
3.Test Commands & Test Procedure List
4.Test Procedure
5. Exploded View & its Parts List
6. Electrical Parts List
7. Block Diagram
8. PCB Diagram
9. Schematic Diagrams
SERVICE

Samsung Electronics Co.,Ltd. Dec. 99
Pinted in Korea.
Code No.: GH68-00947A
ELECTRONICS

Samsung Electronics
1-1
1. Specification
1-1 General
ITEM
Tx Freq. range
Rx Freq. range
Channel Bandwidth
Channel Spacing
Number of Channel
Duplex Separation
Type of Emission
In/Output Impedance
Tx Intermediate Freq.
Rx Intermediate Freq.
Tx Local Freq.
Rx Local Freq
TCXO freq.
Freq. Stability
Operating Temperature
CDMA
824 ~ 849MHz
869 ~ 894MHz
1.23MHz
30KHz
832
45MHz
40K0F8W,40K0F1D
50Ω
130.38MHz
85.38MHz
1st (FTX +130.38MHz)
2nd (260.76MHz)
1st (170.76MHz)
2nd (FRX +85.38MHz)
19.68MHz
(FRX -45MHz)± 300Hz
-30°C ~ +60°C
AMPS
824 ~ 849MHz
869 ~ 894MHz
30KHz
30KHz
832
45MHz
40K0F8W,40K0F1D
50Ω
130.38MHz
85.38MHz
1st (FTX+130.38MHz)
2nd (260.76MHz)
1st (170.76MHz)
2nd (FRX +85.38MHz)
19.68MHz
± 2.5ppm
-30°C ~ +60°C
Supply Voltage 3.6V
Size and Weight Slim : 88mm X 50mm X 23.5mm, 105 g, 500 mA
STD : 88mm X 50mm X 25.7mm, 135 g, 1000 mA
EXT : 88mm X 50mm X 27.5mm, 151 g, 1600 mA

1-2 800MHz CDMA
1) General
Frequency Range
• Transmitter : 824 ~ 849 MHz
• Receiver : 869 ~ 894MHz
Channel Bandwidth : 1.23MHz
Channel Spacing : 30kHz
Number of Channels : 832
Duplex Seperation : 45 MHz
Type of Emission : 40K0F8W,40K0F1D
Input/Output Impedance : 50 Ω
Intermediate Freequency
• Transmitter : 130.38MHz
• Receiver : 85.38MHz
Local Frequency
• Transmitter : 1st(FTX+130.38MHz), 2nd(260.76MHz)
• Receiver : 1st(FRX+85.38MHz), 2nd(170.76MHz)
TCXO Frequency : 19.68MHz
Frequency Stability : (FRX-45MHz) ± 300Hz
Operation Temperature : -30°C ~ 60°C
Supply Voltage : +3.6V
2) 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
Minimum Tx Power Control : below -50dBm
Closed Loop Power Control Range : ±24dB
Maximum RF Output Power : 200mW(+23dBm)
Occupied Bandwidth : 1.23MHz
Conducted Spurious Emission @900 KHz : -42dBc/30kHz
@1.25 MHz : -54dBc/30kHz
Samsung Electronics
1-2

3) 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 = ±900 kHz
Intermodulation Spurious Response Attenuation : lower than 1 %
Rx power = -101dBm
Tone 1 power =-43dBm
Tone 2 power =-43dBm
Tone 1 offset from carrier = ± 900kHz
Tone 2 offset from carrier = ± 1.700MHz
1-3
Samsung Electronics

1-3 800MHz AMPS
1) General
Frequency Range
• Transmitter : 824 ~ 849 MHz
• Receiver : 869 ~ 894 MHz
Channel Spacing :30kHz
Number of Channels : 832
Duplex Spacing : 45MHz
Frequency Stability : ±2.5ppm(-30°C ~ 60°C, -22°F ~ 140°F)
Modulation/Demodulation
• Voice : PM
• Data : FM
Operating Temperature :-30°C ~ 60C, -22°F ~ 140°F
Supply Voltate : 3.6V
2) Transmitter
RF output power : 0.6W(+2/-4dB)
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
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
Samsung Electronics
1-4

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
3) 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
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
1-5
Samsung Electronics

2. Nam Programming
LCD Display Key in Function
menu + 60,654321 -selects NAM programming
NAM program 1 -choose ‘Setup NAM1’
1:Setup NAM1
2:Setup NAM2
NAM1
Phone # -directory number
1234567890 Phone number -to change, enter new one.
OK -store it.
NAM1
Directory # -directory number
1234567890 Phone number -to change, enter new one.
OK -store it.
NAM1
Activate PRL -PRL status
No < or > -to activate PRL, press < or >
OK -store it.
NAM1
Anlg HomeSID System ID for home, current ststus is displayed.
4369 ID number -to change, enter new one.
OK -store it.
NAM1
Dgtl HomeSID System ID for home, current ststus is displayed.
4369 ID number -to change, enter new one.
OK -store it.
NAM1
More Prog.? General NAM setup
No < or > -to change, press < or >
OK -store it
Samsung Electronics
2-1

NAM program 1 Choose ‘ General’
1. General
2. Setup NAM1
3. Setup NAM2
General
ESN -Electronic Serial Number of the phone is displayed
B0000000 OK -Press OK, to view next status item.
General
CAI version -Common Air Interface version is displayed
3OK -Press OK, to view next status item.
General
VOC Select
SO_VOICE_08K < or > -to change Vocoder rate, press < or >
OK - store it
General
SCM -Station Class Mark displays the power class,
01101010 transmission, slotted class, dual mode.
OK -Press OK, to view next status item.
General
Service Code Service code, current ststus is displayed
654321 6-digit code -to change, enter new code.
OK -store it
General
Lock Code Lock code, current ststus is displayed
0000 4-digit code -to change, enter new code.
OK -store it
General
Slot Mode Slot mode. ‘Yes’ indicates the slot mode.
Yes < or > -changes the status.
OK -store it.
General
Slot Index Slot mode index. The higher, the longer sleeping time
20-7 -to change, enter new one.
OK -store it.
General
Roundup Timer Roundup Timer.
No < or > -to change the status.
OK -store it.
2-2
Samsung Electronics
LCD Display Key in Function

NAM program 3 choose ‘Setup NAM2’
1. General
2. Setup NAM1
3. Setup NAM2
NAM2 Digital
IMSI_MCC IMSI Moble Country Code, current code is displayed.
000 number -to change, enter new one.
OK -store it.
NAM2 Digital
IMSI_MNC IMSI Mobile Network Code, current code is displayed.
00 number -to change, enter new one.
OK -store it.
NAM2 Digital
Phone # -Phone number
1234567890 Phone number -to change, enter new one.
OK -store it.
NAM2 Digital
Directory # -directory number
1234567890 Phone number -to change, enter new one.
OK -store it.
NAM2 Digital
Home SID 01 1st CDMA Home system ID, current status is displayed
1 Phone number -to change, enter new one.
OK -store it.
NAM2 Digital
Home NID 01 1st CDMA Home Network ID, current status is displayed
65535 Phone number -to change, enter new one.
OK -store it.
NAM2 Digital
Home SID 02 2nd CDMA Home system ID, current status is displayed
1 Phone number -to change, enter new one.
OK -store it.
NAM2 Digital
Home NID 02 2nd CDMA Home Network ID, current status is displayed
65535 Phone number -to change, enter new one.
OK -store it.
————— repeated to SID 20 & NID 20——————————
NAM2 Digital
Lockout SID01 1st lock system ID,current status is displayed.
0 ID number -to change, enter new one.
OK -store it.
Samsung Electronics
2-3
LCD Display Key in Function