Samsung SCH-8500 User manual

ELECTRONIC
DUAL BAND(PCS+AMPS)
PORTABLE
TELEPHONE
SCH-8500
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.: GH68-00949A
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
1850 ~ 1910MHz
1930 ~ 1990MHz
1.23MHz
50KHz
1200
80MHz
1M25F9W
50
130.38MHz
210.38MHz
1st (FTX-130.38MHz)
2nd (260.76MHz)
1st (420.76MHz)
2nd (FRX-210.38MHz)
19.68MHz
(FRX-80MHz)±150Hz
-30°C ~ +60°C
AMPS
824 ~ 849MHz
869 ~ 894MHz
30KHz
30KHz
832
45MHz
40K0F8W,40K0F1D
50
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. 1.9GHz CDMA(US PCS)
1) General
Frequency Range
• Transmitter : 1850-1910MHz
• Receiver : 1930-1990MHz
Channel Bandwidth : 1.23MHz
Channel Spacing : 50kHz
Number of Channels : 1200
Duplex Seperation : 80 MHz
Type of Emission : 1M25F9W
Input/Output Impedance : 50
Intermediate Frequency
• Transmitter : 130.38MHz
• Receiver : 210.38MHz
Local Frequency
• Transmitter : 1st(FTX-130.38), 2nd(260.76MHz),
• Receiver : 1st(FRX-210.38MHz), 2nd(420.76MHz),
TCXO Frequency : 19.68MHz
Frequency Stability : (FRX-80MHz) ±150Hz
Operation Temperature : -30°C ~ 60°C
Supply Voltage : +3.6V
2) 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 ~ +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 @1.25 MHz: -42dBc/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
• 1930 ~ 1990MHz : <-81dBm
• 1850 ~ 1910MHz : <-61dBm
• All Other Frequencies : <-47dBm
Single Tone Desensitization : lower than 1 %
Rx power = -101dBm
Tone power = -30dBm
Tone offset from carrier = ±1.25 MHz
Intermodulation Spurious Response Attenuation : lower than 1 %
Rx power = -101dBm
Tone 1 power = -43dBm
Tone 2 power = -43dBm
Tone 1 : offset from carrier = ±1.25 MHz
Tone 2 : offset from carrier = ±2.05 MHz
1-3
Samsung Electronics

1-3. 800MHz AMPS
1) General
Frequency Range
• Transmitter : 824~849 MHz
• Receiver : 869~894MHz
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 ~ 60°C, -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, 8,2,0 - Selects NAM programming
Enter Lock 222222 - Enter random 6-digit code(MSL)
??????
SVC Menu 1 - Choose ‘Phone #’
1: Phone #
2: General
3: NAM
Phone # - Phone number setup
1234567890 keypad - To change phone number, enter phone #.
OK - Store it.
Mobile ID # - Mobile ID setup
1234567890 keypad - To change phone number, enter phone #.
OK - Store it.
SVC Menu 2 - Choose ‘GENERAL’
1: Phone #
2: General
3: NAM
ESN - Electronic Serial Number of the phone is
B0000000 OK displayed
CAI version - Common Air Interface version is displayed
1OK
SCM - Station Class Mark displays the power class,
00001010 OK transmission, slotted class, dual mode.
Lock Code Lock code, current status is displayed
0000 4-digit code - to change, enter new code.
OK - stores it
Slot Mode Slot mode. ‘Yes’ indicates the slot mode.
No * or # - changes the status.
OK - stores it.
Slot Index Slot mode index. The higher,the longer sleeping
time
20-7 - to change,enter new one.
OK - stores it.
Samsung Electronics
2-1

Svc Menu 3 - Choose ‘Setup NAM’
1: Phone #
2: General
3: NAM
IMSI_MCC IMSI Moble Country Code,current code is
displayed.
310 number - To change,enter new one.
OK - Sstores it.
IMSI_MNC IMSI Mobile Network Code,current code is
displayed.
00 number - To change,enter new one.
OK - Stores it.
CDMA ACCOLC CDMA Access Overload Class,current status is
displayed.
0 class number - To change,enter new one.
OK - Stores it.
CDMA Home SID CDMA Home system ID,current status is displayed
Yes * or # - Changes the status.
OK - Stores it.
CDMA fSID CDMA foreign SID,current status is displayed.
Yes * or # - Changes the system.
OK - Stores it.
CDMA fNID CDMA foreign NID,current status is displayed.
Yes * or # - Changes the system.
OK - Stores it.
HOME SID SID written in the list,current status is displayed.
number - To change,enter new one.
1700 OK - Stores it.
NID NID written in the list,current status is displayed.
1 number - To change,enter new one.
OK - Stores it.
AMPS ACCOLC AMPS Access Overload Class,current status is
displayed.
0 class number - To change,enter new one.
OK - Stores 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

NAM2 Digital
Lockout SID02 2nd lock system ID,current status is displayed.
0 ID number - To change, enter new one.
OK - Store it.
—————- repeated to Lockout SID10————————————-
NAM2 Digital
CDMA Home SID CDMA Home system ID, current status is displayed
Yes < or > - Changes the status.
OK - Store it.
NAM2 Digital
CDMA fSID CDMA foreign SID, current status is displayed.
Yes < or > - Changes the system.
OK - Store it.
NAM2 Digital
CDMA fNID CDMA foreign NID, current status is displayed.
Yes < or > - Changes the system.
OK - Store it.
NAM2 Digital
CDMA ACCOLC CDMA Access Overload Class, current status is displayed.
6 class number - To change, enter new one.
OK - Store it.
NAM2 Analog
Phone # -Phone number
1234567890 Phone number - To change, enter new one.
OK - Store it.
NAM2 Analog
Directory # - Directory number
1234567890 Phone number - To change, enter new one.
OK - Store it.
NAM2 Analog
Home SID Analog Home system ID, current status is displayed
1 Phone number - To change, enter new one.
OK - Store it.
NAM2 Analog
Auto Reg Auto Registration, current status is displayed
Yes < or > - Changes the status.
OK - Store it.
NAM2 Analog
ACCOLC Analog Access Overload Class, current status is displayed.
6 class number - To change, enter new one.
OK - Store it
2-4
Samsung Electronics
LCD Display Key in Function

4. Test Procedure
4-1 List of Equipment
- DC Power Supply
- Test Jig
- Test Cable
- CDMA Mobile Station Test Set HP8924C, HP83236A, CMD-80, etc
- Spectrum Analyzer(include CDMA Test Mode) HP8596E
4-2 Configuration of Test
❈ CAUTION : The test jig and data cable has a voltage drop of 0.33V at FM Max power output,
you’d better set the DC power supply to 3.93V for normal test condition.
(Nominal voltage of battery is 3.6V at cellular phone)
Samsung Electronics
4-1
Spectrum Analyzer
RF In
HP8924C
RF
In/Out
Directional
Coupler
Test Jig To A-Out
To A-In
DC Power Supply
(+3.93V)
Audio
Out Audio In

4-3 TEST CABLE DESCRIPTION FOR SCH-8500
1. TEST CABLE
2.TEST CABLE CONNECTIONS
1 MHC 172
2 RF CABLE (1.4 dB Loss for AMPS, 2.2dB for PCS)
3 BNC CONNECTOR (RF)
4 PLUG CONNECT TO SCH-8500
5 DATA CABLE
6 Dsub 25PIN CONNECTOR (DATA)
4-2
Samsung Electronics
1
4
56
2
3

3. Dsub 25 PIN CONNECTOR PIN DESCRIPTION (TEST CABLE 1, BACK SIDE)
DATA Dsub CONN.
DESCRIPTION PIN NO.
V_F 12,21
DGND 2, 4, 6, 13, 19
BATT 15, 16, 22
C_F 3,20
TX_AUDIO 5
DP_TX_DATA 7
RX_AUDIO 1
DATA Dsub CONN.
DESCRIPTION PIN NO.
DP_RX_DATA 8
HP_PWR 9
RI 10
CD 11
RTS 14
CTS 17
DTR 18
4. CONVERSION TABLE OF FREQUENCY vs CHANNEL
T Y P E CHANNEL CONVERSION EQUATION REMARK
TX 1 ≤N ≤799 F=0.03 X N + 825.00 N ; CH NUMBER
FREQUENCY 990 ≤N ≤1023 F=0.03 X (N-1023) + 825.00 F ; FREQUENCY
RX 1 ≤N≤799 F=0.03 X N + 870.00 (AMPS)
FREQUENCY 990 ≤N ≤1023 F=0.03 X (N-1023) + 870.00
TX 0 ≤N ≤1199 F=0.05 X N + 1850.00 N ; CH NUMBER
FREQUENCY F ; FREQUENCY
RX 0 ≤N≤1199 F=0.05 X N + 1930.00 2. CDMA (PCS)
FREQUENCY
Samsung Electronics
4-3
14 15 16 17 18 19 20 21 22 23 24 25
1 2 3 4 5 6 7 8 9 10 11 12 13

4-4 Test Procedure
4-4-1 Change to Test Mode
A. To change the phone’s state from Normal Mode to Test Mode,You should enter the following keys.
“4 7 * 8 6 9 # 1 2 3 5”
B.The command “20” is mode and channel change , press “OK” to save.
“10000” or “10001” : AMPS’s Sytem A and Sytem B
“30600”
C. The command “0 1” is Suspend.
D. To finish the Test Mode, You should enter the command “0 2”.
4-4-2 Channel Selection and Tx Power Output Level Control
1. AMPS(FM)
A. Enter to Test Mode (4 7 * 8 6 9 # 1 2 3 5).
B.The command “20” is mode and channel change
“10000” or “10001” : AMPS’s Sytem A and Sytem B
C. To finish the Test Mode, You should enter the command “0 2”.
D. “0 1” : Suspend.
E. “4 6” : Vocoder initial to Analog mode.
F. “0 9 0 3 6 3 #” : Set to ‘0363’ channel.
G. “0 7” : Carrier On.
H. “9 2 * * * “ : Output RF power level is set as power level 2
“* * *” means AGC level and AGC level range is from 0 to 511.
I. “1 0 2” : RF Power level control, 2(0~7) means power level .
4-4
Samsung Electronics
Channel number
Mdoe : CDMA

2. PCS
A. Enter to Test Mode ( 4 7 * 8 6 9 # 1 2 3 5 ).
B.The command “20” is mode and channel change
“30600”
C. To finish the Test Mode, You should enter the command “0 2”.
D. “0 1” : Suspend.
E. “0 9 0 6 0 0 #” : Set to ‘0600’ channel.
F. “0 7” : Carrier On.
G. “3 4” : Spread spectrum to 1.23MHz band width.
H. “84” : High Power-mode On
I. “7 4 * * * “ : Output RF power level is set max power
“* * *” means AGC level and AGC level range is from 000 to 511.
Channel number
Mdoe : CDMA
Samsung Electronics
4-5

4-5 Channel number
1. AMPS(FM)
TEST ITEMS PROCEDURE
1. PREPARATION Set test equipments up.
Confirm that the phone is in the Analog Mode!
( “10000” or “10001” at Test Command “2 0”.)
“4 7 * 8 6 9 # 1 2 3 5 “ : Enter the Test Mode
“0 1” : Suspend
“4 6” : Initialize Vocoder in Analog mode
If a wrong key would be selected, press “#”, and then enter new command.
To exit the Test Mode at any time, just press [0 2].
2. RF “0 1” : Suspend.
POWER “4 6” : Initialize Vocoder in Analog mode.
“0 9 0 3 6 3 #” : Set channel to 363.
“0 7” : Carrier On.
“1 0 2” : RF Power level selection, “2” means one of the power levels (0~7).
Measurement of the Power Output Levels
Level RF Power
0 ~ 2 + 26 dBm +0.3/-4 dB
3 + 23 dBm +2/-4 dB
4 + 19 dBm +2/-4 dB
5 + 15 dBm +2/-4 dB
6 + 12 dBm +2/-4 dB
7 + 9 dBm +2/-4 dB
“0 8” : Carrier off
Note 1 : In case of using the antenna cable, compensation for the
cable loss should be added (about 1.5dB).
Note 2 : To prevent phones from being damaged, they must be
measured only by calibrated test equipments.
Warning !
Adjustments without calibrated equipments can cause phones to be
heated excessively and would void the warranty.
3. TX “0 1” : Suspend.
FREQUENCY “4 6” : Initialize Vocoder in Analog mode.
“0 9 0 3 6 3 #” : Set channel to 363.
“0 7” : Carrier On.
Measure the TX frequency : 835.89 MHz ±2.5ppm.
4. VOICE “0 1” : Suspend.
DEVIATION “4 6” : Initialize Vocoder in Analog mode.
“0 9 0 3 6 3 #” : Set channel to 363.
“0 7” : Carrier On.
“1 4” : TX Audio unmute.
Set the audio generator output to 1kHz, 3.0Vrms.
Measure the Tx voice deviation by using the HPF of
20Hz and the LPF of 99kHz (spec : less than ±12kHz).
4-6
Samsung Electronics

TEST ITEMS PROCEDURE
5. ST DEVIATION “0 1” : Suspend.
“4 6” : Initialize Vocoder in Analog mode.
“0 9 0 3 6 3 #” : Set channel to 363.
“0 7” : Carrier On.
“1 6” : ST on.
Measure the Tx ST deviation by using the HPF of 50Hz
(spec : 8kHz±10%).
“1 7” : ST off.
6. SAT “0 1” : Suspend.
DEVIATION “4 6” : Initialize Vocoder in Analog mode.
“0 9 0 3 6 3 #” : Set channel to 363.
“0 7” : Carrier On.
“3 2” : SAT on.
Set the equipment as following.
RF frequency : 880.89MHz
Input RF level : -80dBm
Modulation frequency : 6kHz
Frequency deviation : 2kHz
Measure the Tx SAT deviation by using the HPF of 50Hz
and the LPF of 6kHz (spec : 2kHz±10%).
“3 3” : SAT off.
7. WBD “0 1” : Suspend.
DEVIATION “4 6” : Initialize Vocoder in Analog mode.
“0 9 0 3 6 3 #” : Set channel to 363.
“0 7” : Carrier On.
“3 4” : WBD on.
Measure the WBD deviation by using the HPF of 50Hz and
the LPF of 20kHz (spec : 8kHz±10%).
8. RX AUDIO “0 1” : Suspend.
“4 6” : Initialize Vocoder in Analog mode.
“0 9 0 3 6 3 #” : Set channel to 363.
“0 7” : Carrier On.
“1 2” : RX Audio unmute.
Set the equipment as following.
RF frequency : 880.89MHz
Input RF level : -80dBm
Modulation frequency : 1kHz
Frequency deviation : ±8kHz
Measure audio AC level.
Samsung Electronics
4-7

2. PCS
TEST ITEMS PROCEDURE
1. PREPARANCE Set test equipments up.
Confirm that the phone is in the PCS Mode.
(“3XXXX” at Test Command “0 2”)
“* 4 7 * 8 6 9 # 1 2 3 5 “ : Enter the Test Mode
“0 1” : Suspend
If you select a wrong key, press “#”, then enter new command.
To exit the Test Mode at any time, just press [0 2].
2. FREQUENCY “0 1” : Suspend.
ACCURACY “0 9 0 3 6 3 #” : Set channel to 363.
“0 7” : Carrier On.
“9 2” :You can read the number.(the code) and the push the
“7 1 2 6 0 #” : Set AGC level to the numer of reading(about 188).
Measure the TX frequency : 835.89MHz±300Hz.
3. OCCUPIED CDMA “0 1” : Suspend..
BANDWIDTH “0 9 0 3 6 3 #” : Set channel to 363.
“0 7” : Carrier On.
“3 4” : Spread spectrum.
“9 2” :You can read the number.(the code) and the push the
“7 1 2 6 0 #” : Set AGC level to the numer of reading(about 188).
Measure the bandwidth (spec: 1.32MHz).
4. LIMITATIONS ON “0 1” : Suspend.
EMISSIONS “0 9 0 3 6 3 #” : Set channel to 363.
“0 7” : Carrier On.
“3 4” : Spread spectrum.
“9 2” :You can read the number.(the code) and the push the
“7 1 2 6 0 #” : Set AGC level to the numer of reading(about 188).
Measure the spurious at FC±900kHz, FC±1.98MHz, 2FC, 3FC, 1/2FC.
spec: FC±900kHz below 42dBc/30kHz
FC±1.98MHz below 54dBc/30kHz
Outside Receive Band 43+10log (PY)
PY: Mean Output Power in watts
5. GATED POWER & Set the service option 2.
TIME Set the data rate Eighth (1200bps).
Registering: HHP ➝HP8924C.
Call : HP8924C ➝HHP.
Measure the Gated Power & Time.
spec : Gated Power - at least 20dB
Gated Time - Rising Time : below 6µs
Falling Time : below 6µs
Burst Time : below 1.25µs
4-8
Samsung Electronics

5. Exploded View & its Parts List
5-1 Main Set Exploded View
Samsung Electronics
5-1