Samsung SCH-2000 User manual
CDMA PORTABLE
PCS TELEPHONE
SCH-2000
CONTENTS
1. Specification
2. Installation
3. NAM Programming
4. Circuit Description
5. Test Procedure
6. Troubleshooting
7. Exploded Views and Parts List
8. PCB Diagrams
9. Electrical Parts List
10. Block & Circuit Diagrams
CDMA PORTABLE PCS TELEPHONE
SERVICE
Manual
Samsung Electronics Co.,Ltd.
GH68-60692A
Printed in Korea.
Samsung Electronics 1-1
1. Specification
1-1 General
Frequency Range
Transmitter : 1850 °≠1910 MHz
Receiver : 1930 °≠1990 MHz
Channel Bandwidth : 1.23 MHz
Channel Spacing : 50 KHz
Number of Channels : 1200
Duplex Separation : 80 MHz
Type of Emission : G7 W
Input/Output Impedance : 50 ohms
Intermediate Frequency
Transmitter : 130.38 MHz
Receiver : 210.38 MHz
Local Frequency
Transmitter : 1st (FTX-130.38), 2nd (260.76 MHz)
Receiver : 1st (FRX-210.38), 2nd (420.76 MHz)
TCXO Frequency : 19.68 MHz
Frequency Stability : (FRX - 80 MHz) °æ 150 Hz
Operating Temperature : -30 °… ° ≠+60 °…
Supply Voltage : +3.6 V
Current Consumption (Average)
Standby : 180 mA (Non-slot mode)
Talk : 480 mA (at +10 dBm)
Size and Weight
Including Standard Battery : 121.9(H)°ø50.8(W)°ø20.3(D), 138.9 g
Including Extended Battery : 121.9(H)°ø50.8(W)°ø25.4(D), 158.7 g
1-3 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=°æ1.25 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=°æ1.25 MHz
Tone 2 offset from carrier=°æ2.05 MHz
Specification
1-2 Samsung Electronics
1-2 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
-104dBm : +15.0 dBm °≠+30.0 dBm
Minimum Tx Power Control : -50 dBm below
Closed Loop Power Control Range : °æ24 dB
Maximum RF Output Power : 200 mW (+23 dBm)
Occupied Bandwidth : 1.23 MHz
Conducted Spurious Emissions @1.25MHz : -42 dBc/30KHz
Samsung Electronics 2-1
2. Installation
2-1 Installing a Battery Pack
3. To remove the battery pack, release it by
pressing the button on the rear of the phone.
4. Slide the battery pack downwards about 1cm
(1/2") and lift it away from the phone.
2-2 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 cord
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 BAT 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.
Press this button to release
the battery pack
Figure 2-1 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
downwards.
2. Slide the battery pack upwards until it clicks
firmly into position. The phone is now ready
to be turned on.
Installation
2-2 Samsung Electronics
2-3 For Mobile Mount
2-3-1 Antenna
1. Choose a proper location to install the
antenna.
¶UThe center of the roof top provides the best
performance.
¶UThe edge of the rear trunk also provides a
good performance. However, the antenna
should be higher than the roof of the car.
¶UIn 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.
2-3-2 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 2-2.
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 2-2 Cradle Installation
Samsung Electronics 2-3
Installation
2-3-3 Hands-Free Box
1. Drill holes in a proper location for the hands-
free box, attach the mounting bracket by using
the screws. See the figure 2-3.
2. Install the hands-free box into the bracket.
2-3-4 Hands-Free Microphone
1. It is recommended to install the microphone
where it is 30-45 cm (12-18") away from the
driver. Choose the location where is least
susceptible to interference caused by external
noise sources, ie, adjacent windows, radio
speakers, etc. Normal place is the sun visor.
2. Once the microphone has been correctly
positioned, connect the microphone wire to
the MIC jack on the hands-free box.
Figure 2-3 Hands-Free Box Installation
Installation
2-4 Samsung Electronics
Figure 2-4 Cable Connections
2-3-5 Cables
1. Connect the cradle and the hands-free box
with the data cable. See the figure 2-4.
2. Connect the antenna cable to the RF jack of the
cradle.
3. Connect one end of the power cable to the
battery or ignition terminal. Connect the red
wire to the battery (+) terminal, black wire to
the vehicle chassis. Then connect the battery (-)
terminal to the vehicle chassis.
4. Connect the other end of the power cable to
the PWR jack of the hands-free box.
Notes:
¶UIt is recommended to connect the power cable
directly to the battery to avoid power noise.
¶UMake sure the connection between the battery -
terminal and the vehicle chassis is made
correctly.
¶UMake sure the fuse having a proper capacity is
used on the power cable.
¶UMake sure the cables do not pass over any sharp
metal edge that may damage it.
Enter Lock
??????
SVC Menu°Ë°È
1:PCS Phone#
2:General
ESN B0000000
CAI version1
VOC13K/8K
SO_VOICE_13K
SCM 00001010
Lock Code
0000
Slot ModeNo
Slot Index 2
MENU, 5, 0 -selects NAM programming
6-digit code -Enter random 6-digit code (MSL)
2-choose 'GENERAL.'
Volume °„ -Electronic Serial Number of the phone is displayed
Volume °„ -Common Air Interface version is displayed
°Ëor°È -Select vocoder service option
OK -stores it
Volume °„ -Station Class Mark displays the power class,
transmission, slotted class, dual mode.
Lock code, current status is displayed
4-digit code -to change, enter new code.
OK -stores it.
Slot mode. 'Yes' indicates the slot mode.
°Ëor°È -changes the status.
OK -stores it.
Slot mode index. The higher, the longer sleeping time.
0 - 7 -to change, enter new one.
OK -stores it.
Samsung Electronics 3-1
LCD Display Key in Function
3. NAM Programming
NAM features can be programmed as follows:
Notes:
-If you enter the NAM program mode, each item shows the currently stored data. Go to the next item by
pressing OK.
-You can modify the data by entering a new data.
-If you enter a wrong digit, press CLR to delete the last digit. Press and hold CLR to delete all digits.
-To scroll items backwards or forwards, press the VOLUME button on the left side of the phone.
3-1 General Setup
NAM Programming
3-2 Samsung Electronics
3-2 Setting Up NAM
LCD Display Key in Function
Volume °„ -NAM Programming Menu is displayed
3-choose 'Setup NAM'
number IMSI Mobile Country Code, current code is displayed.
OK -to change, enter new one.
-stores it.
number IMSI Mobile Network Code, current code is displayed.
OK -to change, enter new one.
-stores it.
CDMA Access Over load Class, current status is displayed.
class number -to change, enter new one.
OK -stores it.
CDMA Home system ID, current status is displayed.
°Ëor°È -changes the status.
OK -stores it.
CDMA foreign SID, current status is displayed.
°Ëor°È -changes the status.
OK -stores it.
CDMA foreign NID, current status is displayed.
°Ëor°È -changes the system.
OK -stores it.
first SID written in the list, current status is displayed.
number -to change, enter new one.
OK -stores it.
first NID written in the list, current status is displayed.
number -to change, enter new one.
OK -stores it.
SVC Menu°Ë°È
1:PCS Phone #
2:General
SVC Menu°Ë°È
3:NAM
IMSI_MCC 310
IMSI_MNC 00
CDMA ACCOLC0
CDMA HomeSID
Yes
CDMA fSID
Yes
CDMA fNID
Yes
SID 4120
NID 65535
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