Samsung SCH-811 User manual

SERVICE
CDMA CELLULAR
TELEPHONE
SCH-811
Manual
CDMA CELLULAR TELEPHONE
SAMSUNG PROPRIETARY-CONTENTS MAY CHANGE WITHOUT NOTICE
CONTENTS
1. General Introduction
2. Specification
3. Installation
4. NAM Programming
5. Product Support Tools
6. Troubleshooting
7. Exploded view and its Part List
8. Electrical Parts List
9. PCB diagrams
10. Block & circuit diagrams

Samsung Electronics Co.,Ltd.
GH68-00398A
1999. 3. REV. 1.0
ELECTRONICS

SAMSUNG Proprietary-Contents may change without notice 1-1
1. General Description
The SCH-811 cellular phone functions as both analog cellular phone working in AMPS (Advanced Mobile
Phone Service) mode and digital cellular phone working in CDMA (Code Division Multiple Access) mode.
CDMA type digital mode applies DSSS (Direct Sequential Spread spectrum) mode which first came to be used
in the military.
The DSSS reduces channel cross talk and allow to use one frequency channel by multiple users in the same
specific area, resulting in increase of channel capacity to about ten times compared to that of analog mode
currently used.
Soft/Softer Handoff, Hard Handoff, and Dynamic RF Power Control technologies are combined into this phone
to reduce the call drop while usage.
CDMA digital cellular network consists of MSO (Mobile Switching Office), BSC (Base Station Controller),
BTS(Base Station Transmission System), and MS (Mobile Station). MS meets the specifications of the below:
E IS-95A : Mobile Station-Base Station Compatibility Standard for Dual-Mode Wideband Spread Spectrum
Cellular System
E IS-96A : Speech Service Option 1 Standard for Dual-Mode Wideband Spread Spectrum Cellular Systems
E IS-98A : Standards for Dual-Mode Wideband Spread Spectrum Cellular Mobile Station
E IS-126 : Mobile Station Loopback Service Options Standard
SCH-811 is composed of main handset, rapid charger, three batteries (1600 mAh, 1000 mAh, 550mAh), hands-
free kit, car adaptor, and travel charger. Hands-Free Kit is designed to be operated in full-duplex mode taking
turn-around delay between the phone and the system into account.

2-1 SAMSUNG Proprietary-Contents may change without notice
2. Specification
2-1 General
Frequency Range Digital Mode Analog Mode
Transmitter : 824 ~ 849 MHz 824 ~ 849 MHz
Receiver : 869 ~ 894 MHz 869 ~ 894 MHz
Channel Spacing : 1.23 MHz 30kHz
Number of Channels : 20 FA 832CHs
Duplex Spacing : 45 MHz 45MHz
Frequency Stability : ±2.5 ppm (-20ûC ~ +60ûC, -4ûF ~ +140ûF)
Operating Temperature : -30ûC~+60ûC (-4ûF ~ +140ûF)
Operating Voltage
HHP : 3.6V DC (±10%)
Hands-free : 13.7V DC (±10%)
Size and Weight : 88.0 x 56.5 x 26.7/27.6/31.3 mm
including slim battery : 117.3 g
including standard battery : 145.2 g
including extended battery : 160.5 g
Operating Time
Digital Mode Standby Time : up to 36 hours (with slim battery)
: up to 65 hours (with standard battery)
: up to 100 hours (with extended battery)
Talk Time : up to 75 min (with slim battery)
: up to 150min (with standard battery)
: up to 240min (with extended battery)

SAMSUNG Proprietary-Contents may change without notice 2-2
2-2 Digital Mode
Waveform Quality 0.944 or more
Time Reference ±1uS or less
Rx Sensitivity and Dynamic Range -104dBm, FER=0.5% or less
-25dBm, FER=0.5% or less
Tx Output Power 320mW (25dBm)
Tx Frequency Deviation ±300Hz or less
Occupied Band Width 1.32MHz
Tx Conducted Spurious Emission 900KHz : -42dBc / 30KHz below
1.98MHz: -54dBc / 30KHz below
Minimum Tx Power Control below -50dBm
-25dBm: -57.0dBm ~ -38.5dBm
Open Loop Power Control -65dBm: -17.5dBm ~ + 1.5dBm
-104dBm: +18.0dBm ~ +30.0dBm
Standby Output Power below -61dBm
Test1: ±24dB or less
Test2: 0mS ~ 2.5mS
Colsed Loop Tx Power Control Range Test3: ±24dB or more
Test4: ±24dB or more
Test5: ±24dB or more

2-3 SAMSUNG Proprietary-Contents may change without notice
2-3 ANALOG MODE
TRANSMITTER
RF output power
Carrier ON/OFF conditions
ÒONÓ Condition
ÒOFFÓ Condition
Compressor
Compression Rate
Attack Time
Recovery Time
Reference Input
Preamphasis
Maximum Freqency Deviation
F3 of G3
Supervisory Audio Tone
Signaling Tone
Wideband Data
Post Deviation Limiter Filter
3.0 ~ 5.9KHz
5.9 ~ 6.1KHz
6.1 ~ 15KHz
Over 15KHz
Spectrum Noise Suppression
For all modulation
f0+20KHz ~ f0+45KHz
For modulation by voice and SAT
f0 +45KHz
For modulation by WBD(without SAT)
and ST (with SAT)
f0+45KHz ~ f0+60KHz
f0+60KHz ~ f0+90KHz
f0+90KHz ~ 2f0
Harmonic and conducted Spurious Emissions
0.6W (+2/-4dB)
within ±3dB of specification output (in 2mS)
below-60dBm (in 2mS)
2:1
3mS
13.5mS
Input level for producing a nominal ±2.9KHz
peak freqency deviation of transmitted carrier
6dB/OCT within 0.3 ~ 3KHz
±12KHz
±2KHz (±10%)
±8KHz (±10%)
±8KHz (±10%)
above 40 LOG (F/3000) dB
above 35 dB
above 40 LOG (F/3000) dB
above 28 dB
above 26 dB
above 63 +10 LOG (PY) dB
above 45 dB
above 65 dB
above 63 +10 LOG (PY) dB
(where f0=carrier frequency
PY=mean output power in watts)
below 43 + 10 LOG (PY) dB

SAMSUNG Proprietary-Contents may change without notice 2-4
RECEIVER
De-Emphasis
Expander
Expander Rate
Attack Time
Recovery Time
Reference Input
Sensitivity
Intermodulation Spurious Response Attenuation
RSSI Range
Protection Against Spurious Response
Interference
In Band Conducted Spurious Emission
Transmit Band
Receive Band
Other Band
Radiated Spurious Emission
Frequency Range
25 ~ 70 MHz
70 ~ 130MHz
130 ~ 174 MHz
174 ~ 260 MHz
260 ~ 470 MHz
470 ~ 1GHz
-6dB / OCT within 0.3 ~3KHz
1:2
within 3mS
within 13.5mS
output level to a 1000Hz tone from a carrier
within ±2.9KHz peak frequency deviation
12dB SINAD / -116dBm
avove 65dB
above 60dB
above 60dB
below -60dBm
below -80dBm
below -47dBm
Maximum Allowable EIRP
-45dBm
-41dBm
-41 ~ -32dBm
-32dBm
-32 ~ -26dBm
-21dBm

2-5 SAMSUNG Proprietary-Contents may change without notice
2-4 CDMA Debug Display Information (menu 8)
IN IDLE MODE
IN CONVERSATION MODE
1 : Sxxxxx : SID (System ldentification) toggle
Nxxxxx : NID (Network Identification) toggle
2 : SIx : Slot cycle index (lowest between the system and the phone will be used)
3 : Handset Status : 0 - Acquisition
1 - Synchronization
2 - Paging (Idle)
3 - Traffic Initialization
4 - Traffic Mode
5 - Exit
4 : T-xx : Tx adjust, Value ranges from +63 ~ -63dB
5 : Dxxx : sector power in dBm
6 : -xx : Ec/Io
7 : Pxxx : PN offset
8 : CHxxxx : channel number
9 : TEx : Tx vocoder rate (8 is full rate, 1 is 1/8th rate)
E : EVRC
V : 13k or 8k
10 : REx : Rx vocoder rate (8 is full rate, 1 is 1/8th rate)
11 : xx : Walsh code used in traffic channel
12
5
3
64 Sxxxx
TEx
T-xx Dxxx -xx
CHxxxxPxxx
REx xx x
T-xx Dxxx -xx
CHxxx
Pxxx
SIx x
7
8
91011
3

SAMSUNG Proprietary-Contents may change without notice 2-6
2-5 FM Debug Display Information (menu 8)
1 : SIDxxxxx : FM 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
14
52 SIDxxxxx
PWRx RSSIxxx
CHxxxx
SATx
x
3
6

3. Installation
3-1 Installing a Battery Pack
1. To attach the battery pack after charging, align it with the phone about 1cm (1/2 inch 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 (1/2inch and lift it away from the phone.
3-1 SAMSUNG Proprietary-Contents may change without notice
Press this button to
release the battery pack