Service manual

faulty and repaired accordingly.The following table states the required test and
tolerances.
Accessing The Manual Test Mode
• When the Test SIM card is in place, power up the telephone. Once the initial
automatic ‘wake up’ sequence has taken place correctly, depress the # key
(on the units keypad) for three seconds. After three seconds ‘TEST’ should
appear in the display, indicating that the unit is now in the Manual Test Mode.
The table below shows the avail-able Manual Test commands and their corre-
sponding results.If a customer should forget the security code in their unit, it
can only be read or changed by using a Test SIM card.
General Information For DCS Radios
• Number of Channels are 375.
• Low Channel Number 512.
• Low Channel Tx Freq 1710 MHz.
• Low Channel Rx frequency 1805 Mhz.
• Mid Channel number 700
• Mid Channel Tx Freq 1747.8 MHz.
• Mid Channel Rx Frequency 1842.8 MHz
• High Channel Number 885
• High Channel Tx Frequency 1785 MHz.
• High Channel Rx Frequency 1880 MHz.
GSM/DCS Key Sequence GSM/DCS Test Function/Name
#(hold down for 2 seconds) Enter manual test mode
01# Exit manual test mode
02xxyyy#
Display/modify TX power level DAC &
load PA calibration table
03x# DAI
05x# Initiate Exec Error Handler Test
07x# Mute RX audio path
08# Unmute RX audio path
09# Mute TX audio path
10# Unmute TX audio path
11xxx# Program main LO to channel
12xx# Set TX power level to fixed value
13x# Display memory block usage
14x# Initiate Out of Memory condition
15x# Generate tone
16# Mute tone generator
19#
Display S/W version number of Call
Processor
20# Display S/W version number of Modem
22#
Display S/W version number of Speech
Coder
24x# Set step AGC