Test Equipment_____________________________________ 5
Recommended Instruments _________________________________ 5
Other Equipment__________________________________________ 6
Test Program_______________________________________ 7
How to Use _______________________________________________ 7
Initiating the Test Program______________________________________ 7
Return to TEST INPUT ________________________________________ 7
Exit ________________________________________________________ 7
Individual Test Options ____________________________________ 8
Overview of the Test Program __________________________________ 15
ETACS Service Program____________________________ 17
Hardware Requirements___________________________________ 17
Software Installation______________________________________ 18
Starting the Program _____________________________________ 18
The Programming Cycle___________________________________ 19
Using the Menus _________________________________________ 19
How to Select _______________________________________________ 19
The Functions_______________________________________________ 20
The type of equipment requir ed for service on the
Ericsson Mobile Phone EF738
listed below and includes instruments, tools, and other hardware.
Descriptions of the programs for test, service, NAM programming, ESN transfer,
and software upgrading are also included in the following subsections.
Recommended Instruments
InstrumentRecommended Unit
Alternative 1:
Radio Test System
lternative 2:
Communication Test Set
Alternative 3:
Communications Test Set
Alternative 4:
Radio Test Set
Signalling Unit
Other alternatives:
Oscilloscope
Multimeter
Digital Voltmeter
Power Supply Unit
Marconi 2960
Schlumberger 4031
Schlumberger 4015
Rohde & Schwarz CMS 52
Rohde & Schwarz CMS-B13
Tektronix 2235
Hewlett-Packard 3468A
Fluke 8060A
Power Box EK030-10
is
INSTRUMENT (FRONT)
IN-AUDIO-OUT
DB-9
IN - AF - OUT
KRY 101 1612/2
POWER SUPPLY
GROUND SUPPLY
DB-15
LPC
102 280
RF IN/OUT
GROUND CABLE (black)
SUPPLY CABLE (red)
ANTENNA CABLE
ANTENNA ADAPTER
C
A
R
C
R
A
D
L
E
D
U
M
M
Y
B
A
T
T
E
R
Y
5
Test/Service Programs
Other Equipment
Equipment Ordering Number
ETACS Service Program
Programming InterfaceNTZ 112 311
Connection CableKRY 101 1135/10
AdapterLPC 102 280
Car CradleKRY 109 1001/72
Test HandsetNTZ 112 210
Antenna CableNTZ 112 294
Antenna Cable AdapterRNT 403 012/003
Dummy BatteryNTZ 112 310
Service Adapter Kit
- Test Interface BoxLPC 102 28 0
- Audio BoxKRY 101 1612/51
- Power Supply 110VKRY 101 1612/54
- Power Supply 220VKRY 101 1612/55
Standard tools and soldering equipment must also available
When servicing mobile tel epho nes , it is most impo rtant that a bench earthing
Note:
network is used to protect sensitive components against electrostatic discharge
(ESD).
6
Test Program
How to Use
Test/Service Programs
This document will describe the use of the built-in test program for the
After the more extensive descriptions found in
follows in the form of a table with data referring to the different options.
This table will become a handy alternative after having some experience of the test
program.
Individual Tes t Opt ions,
EF738
.
an overview
Initiating the Test Program
The test prog ram is initiated from the special test han dset;
by holding down the M button and pressing
by pressing
However, if the
gram can be initiated and run directly from the keypad by pressing the same
sequence (
When the phone enters th e tes t mode , the hardware becomes init ial i zed and the text
TEST INPUT
To step forward and backwards in the test program; press SEND and RCL.
To choose a specific test; press its number followed by the # button.
90 40 59
M = MENU
appears in the display.
followed by
Test Program Enter
).
M M
function is enabled in the telephone, the pro-
90 40 59
or
Return to TEST INPUT
Press the C or M button to return t o the input mode whe re th e TEST I NPUT pr ompt
is displayed.
Exit
To exit from the test program; select
test option 99
and press the # button.
7
Test/Service Programs
Individual Test Options
A list describing the use of the test program options follows below.
A summary of the test options and possible parameter values is given as well.
1 CH NUMBER
2 TX POWER
4 FLASHER
Setting of channel number
Choose any chanel in the ETACS system (0-600, 1329-2047).
Default setting is channel 1.
To change channel number; enter a 4-digit decimal number followed by #.
Use * and # to step backwards/forwards.
Channel number and signal strength are displayed.
Sets the transmi tter on and of fF a nd deter mines th e output power
level.
8
off
7
power level 7; minimum output power
6
power level 6
5
power level 5
4
power level 4
3
power level 3
2
power level 2; maximum output power
When the power reduction function is activated in menu 76,
power level 2 will be displayed as ‘S’.
When the extra power option in menu 76 is activated,
power level 2 will be displayed as ‘X’.
Used only when loading the program into a terminal.
5 PWR CAL
6 TX DETECT
7 TX SENS
Calibration of power levels.
Transmitter is turned on and tuned to the calibration channel.
Modify the power levels with the following keys:
# / *
increases/decreases the power level
M+S
stores the value and steps to next power level;
transmitter is turned on
M+#
starts calibration and displays power level;
steps forward to next power level (2->3->...->7->2).
C
turns off TX, restores channel no., returns to menu 0.
Performs two simple transmitter tests: a general Go/NoGo trans-
mitter test and a transmitter leakage test.
To start the test, press any key except
The result is displayed when the test is finished:
FF
both tests passed
01
general transmitter test fa iled
02
leakage test failed
Factory and level 5 repair only
C.
8
Test/Service Programs
9 RF CAL
10 RX SENS
Calibrates the RSSI levels based on the level of the signal cur-
rently being received.
The value determined for each level is the minimum strength
signal for that level, averaged over 16 readings to provide a
more reliable value.
The value for level 0 is used to update the Receiver Carrier
Detect (RXCD) such that signals below this level are ignored.
This value (plus a fixed offset) also determines the minimum
signal threshold for the AFC.
When the received signal is below this threshold, the AFC pro-
vides TCXO compensation based on a default temperature com-
pensation table.
The values for level 1 and 5 are used to determine the RSSI
graph to display.
The values for level 2, 3 and 4 are interpolated from these two
reference levels.
M+#
displays the next RSSI level number and its current value
M+S
reads an averaged RSSI value and stores it
Adjustment of the receiver audio output
M+#
enables calibration and echoes the initial value
# / *
increases/decreases the value by 1; new value is echoed
M+S
stores the current value
11 KEYPAD
13 BANDGAP
14 AUDIO DEV
15 AFC
Factory and level 5 repair only
Factory and level 5 repair only
Adjustment of the audio deviation
M+#
enables calibration and echoes the initial value
# / *
increases/decreases the value by 1; new value is echoed
M+S
stores the current value
Sets the AFC operating mode and displays AFC information
0
only temperatue compensation
1
temp. + age compensation
2
temp. + age + freq. compensation, smoothed (default)
3
temp. + age + freq. compensation, no smooth
4
no compensation
Any other code entered in handset mode will display:
ABCCDDEEFF where
A
= AFC operating mode
0only temperatue compensation
1temp. + age compensation
2temp. + age + freq. compensation, smoothed (default)
3temp. + age + freq. compensation, no smooth
4no compensation
9
Test/Service Programs
B
= AFC state
1waiting for s ignal;
(no valid RSSI, compensate for temp. or temp. + age)
2acquiring lock;
(RSSI good, use whole freq. error for 1.5 sec for fast lock)
3locked (RSSI good, use smoothed freq. compensation)
4freeze lock ( RSSI temporarily lost, compensate for
temp + age + (frozen) freq. error for up to 30 sec.)
5locked using short count;
(RSSI good, use smoothed freqcompensation);
only entered when current savings is active;
short freq. measurements is used to find freq. error com-
pensation
6entered when DRX has started;
compensate for temp. + age + (frozen) freq. error.
CC
total compensation
DD
temperature table component
EE
age component
FF
frequency error component
18 DAC2CAL
19 RX SAT
20 AUDIO
21 HANDSET
22 TX SAT
Calibration of the VCTCXO.
M+#
enables calibration and echoes the initial value
# / *
increases/decreases the value by 1; new value is echoed
M+S
stores the current value
During the calibration the AFC is in ‘Temperature only compensation mode’ (Tp-15:0)
Upon exiting the calibration the AFC returns to its previously
selected operating mode.
Factory and level 5 repair only
Sets the audio paths in the audio circuit
KeyTX-audioRX-audio
0
mutedmuted
1
unmutedmuted
2
mutedunmuted
3
unmutedunmuted
Sets the audio paths in the handset.
0
microphone off, earphone off, loudspeaker off (default)
1
microphone on, earphone on, loudspeaker off
2
microphone off, earphone off, loudspeaker on
Controls the SAT tone switch and TX SAT deviati on.
0
generate 5970 Hz SAT
1
generate 6000 Hz SAT
2
generate 6030 Hz SAT
3
no SAT generated
4
SAT tone switch setting = ON
5
SAT tone switch setting = OFF
M+#
enables calibration and echoes the initial value
# / *
increases/decreases the value by 1; new value is echoed
M+S
stores the value
10
Test/Service Programs
23 MANCH OUT
24 MANCH IN
25 VOLUME
26 DTMF
Controls the wideband data and deviation
To transmit these data the transmitter must be switched on.
0
off - no data output)
1
8kHz output; ones
2
8kHz output; zeros
3
hardcoded idle frame; 0101010101
M+#
enables calibration and echoes the initial value
# / *
increases/decreases the value by 1; new value is echoed
M+S
stores the value
Displays the latest received data from the base station.
The value is displayed each time a key is pressed.
Sets the earpiece and loudspeaker volume.
Possible val ues: 0 - 7 (default: 3)
DTMF tones consist of a lower frequenc y in combinat ion with a
higher frequency.
The test enables listening to either or both as follows:
0
low frequency
1
high frequency
2
both frequencies.
# / *
scroll forwards/backwards to next/previous DTMF tone
M+#
enables calibration and echoes the initial value
# / *
increase/decrease the value by 1; new value is echoed
M+S
stores the value
27 TX SOURCE
28 EARPIECE
29 COMP
Sets the TX audio paths in the audio circuit.
Also possible to adjust the levels of the different audio paths.
0
external line input, ATMS (default)
1
internal MIC
2
internal MIC with MicAmp gain
M+#
enables calibration and echoes the initial value
# / *
increases/decreases the value by 1; new value is echoed
M+S
stores the value
Sets the earpiece mute switch in the audio circuit to all ow for
adjustment of the earpiece sensitivity values.
0
internal earpiece disconnected
1
internal earpiece connected
2
audio sent out AFMS on system connector (default)
internal earpiece and AFMS can both be adjusted
M+#
enables calibration and echoes the initial value
# / *
increases/decreases the value by 1; new value is echoed
M+S
stores the value
Selects compander or linear mode
M+#
displays the current compander settings
M+0
linear mode (default)
M+1
companding mode
11
Test/Service Programs
30 HF
32 SOFTLIMIT
35 COUNTRY
36 BER
37 OMC
38 ADC
Controls the handsfree attenuation level for RX and TX audio
M+0
M+1
0-7
Sets the use of the softlimiter in the audio circuit.
Changes made are temporary and will not update the EEPROM.
Factory and level 5 repair only
Factory and level 5 repair only
Factory and level 5 repair only
Displays the different hex values from the ADC
M+1
M+2
M+3
M+4
M+5
M+6
M+7
selects RX handsfree audio gain settings
and echoes initial gain settings
selects TX handsfree audio gain settings
and echoes initial gain settings
sets the gain for the selected path:
0=0dB, 1=-7dB, 2= -14dB, ... 7=-49dB
RSSI
battery voltage
unused
temperature sense
bandgap reference
current sense
handsfree level
39 DAC
40 INPORT
Changes temporarily the output voltage from the DAC.
M+1
M+2
M+3
xxx M
# / *
Shows the status of the different inports (updated every second)
M+1
M+2
M+3
M+4
M+6
M+7
#
normally controlled by AFC
normally trimmed using ‘MENU 18’
power level
+#decimal value followed by ‘MENU + #’ sent directly
to the active DAC (valid values: 000 - 255)
increases/decreases value by 1; new value is echoed
external audio connection detected
0 = input high
1 = input low
state of CPU port 2
flip status
0 = flip closed
1 = flip open
transmitter status
0 = transmitter off
1 = transmitter on
external handsfree detected
0 = input low
1 = input high
receiver carrier detect
0 = RSSI < sensitivity limit
1 = RSSI > sensitivity limit
immediately reads the selected port
12
Test/Service Programs
41 OUTPORTS
42 DSCR
Shows the status of the selected outport
First select a digital outport:
M+1+0
M+1+1
M+1+2
M+1+3
M+1+4
M+1+5
M+1+6
M+1+7
M+1+8
M+2
M+3
M+4
M+5
M+6
Then select the state:
0
1
Turns the discriminator and multiplier on and off
0
1
VRX
Note!
VTX,
power down VCO
unused
SWDC
MPD2
FMPD1
unused
temperature
ICTRL
MUTE
green LED
red LED
back light
set output low
set output high
discriminator off
discriminator on (default)
VRX must be on!
43 BAR
45 LCD
46 PWR DOWN
47 SW REV
48 SYNTH
49 RX PWR
MODE
50 GUARANTEE
Tests the different tones of the phone
0
1
2
3
4
Tests the different segment and icons of the display as five dif-
ferent patterns
M+digit (1-5)
#
C
or
Factory and level 5 repair only
Displays the software, revision and ESN inside the terminal.
Press any key to show software name and revision.
Additional pressure of any key will show the ESN.
Factory and level 5 repair only
Factory and level 5 repair only
Press any key to display year and month when warranty/guarantee was activated and the length (months)of the warranty period
continous ringing signal at maximum volume
continuos alarm signal
click signal single pulse
error signal single pulse
continuous 3kHz ringing tone
shows the selected pattern no. (1-5)
shows all patterns continuously
starting with pattern no. 1
S
terminates the test
53 SYNT I SET
54 EEPROM
INIT
Factory and level 5 repair only
Factory and level 5 repair only
13
Test/Service Programs
60 SYNTH
61 AUDIO
CIRCUIT
62 RADIO CTRL
74 TCA TEST
76 BATT SAVE
77 EEDATA
79 PIN
91 EEPROM
DUMP
92 EEPROM
LOAD
96 COLD START
Factory and level 5 repair only
Factory and level 5 repair only
Factory and level 5 repair only
Checks the ETACS combining algorithm
Controls the reduced and extra power functions
0
off
1
power reduction invoice channel (power level 2 only)
2
extra power (power level 2 only)
Factory and level 5 repair only
Factory and level 5 repair only
Factory and level 5 repair only
Factory and level 5 repair only
Clears the RAM, exits service & test mode, and powers up in
‘terminal charge only mode’
#
exit service & test mode; power up in normal mode
M+#
exit service & test mode; power up in charge only mode
97 FLASH
CHSUM#
98 ERROR
99 EXIT
Calculates the checksum of the flas h memory
2 bytes checksum will be displayed
Factory and level 5 repair only
Press # to exit the service program
14
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