Samsung sch-880 Service Manual
Samsung Electronics
4-4 Test Procedure
4-4
TEST ITEMS
PROCEDURE
1. PREPARANCE
Set test equipments up.
Confirm that the phone is in the CDMA Mode.
(“2XXXX” at Test Command “0 2”)
(“2XXXX” at Test Command “0 2”)
“* 7 5 9 # 8 1 3 5 8 0” : 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].
“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 6” :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.
“0 7” : Carrier On.
“9 6” :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.
“8 4” : High power mode
“9 6” :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).
“0 7” : Carrier On.
“3 4” : Spread spectrum.
“8 4” : High power mode
“9 6” :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.
“8 4” : High power mode
“9 6” :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).
“0 7” : Carrier On.
“3 4” : Spread spectrum.
“8 4” : High power mode
“9 6” :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 F
C
±900kHz, F
C
±1.98MHz, 2F
C
, 3F
C
, 1/2F
C
.
spec : F
C
±900kHz below 42dBc/30kHz
F
C
±1.98MHz below 54dBc/30kHz
Outside Receive Band 43+10log (PY)
PY: Mean Output Power in watts
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
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 1.25ms
Burst Time : below 1.25ms
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