Rf Testing - Sony SPP-S9101 Service Manual

E) MMI Test
Command
5-1-# Key matrix test
JOG shuttle test
5-2-#
LCD test
5-3-#
5-4-# LED OFF
1) Press the One-Touch B key and turn off the LCD
Backlight LED. (CID/LCD)
2) Press the One-Touch B key and turn off the DIAL
LED. (CID/LCD)
3) Press the One-Touch B key and turn on all LEDs
and return to step 1. (CID/LCD)
Details
1. Key Matrix Test: 5-1-#
If the keys are pressed continuously in the following desig nated
order correctly, a confirmation beep sounds.
If pressed incorrectly, an error beep sounds and the unit re
turns to the idling state.
TALK n OFF n FLASH n REDIAL n PGM n
PAUSE n 1 n 2 n 3 n 4 n 5 n 6 n
7 n 8 n 9 n n 0 n # n A n B n C
*
2. JOG shuttle test: 5-2-#
• When the JOG shuttle is rotated in the clockwise direction, R is
displayed on the LCD. When rotated in the counterclockwise
direction, L is displayed. When the JOG shuttle is pressed, P is
displayed. (1st line and digit of the LCD)."
3. LCD test mode: 5-3-#
• Set the mode which lights up all dots.
F) Others
Command
7-0-#
Clears all EEPROM data.
7-1-#
Clears EEPROM ID data. If cleared successfully, sounds
the ACK beep.
9-0-#
Battery Save Mode
4-3-1. Ending the HANDSET Test Mode
1. Entering the command "0-0-#" from the keypad in any state of
the HANDSET TEST MODE ends the HANDSET MODE and
returns the normal mode.
Mode/Operation
Mode/Operation
4-4.

RF TESTING

This test is for checking the RF system without disassembling the
set in servicing. Perform measurement using the spectrum analyzer
and jig antenna.
4-4-1. RF Testing method
Please follow the below instruction to perform RF test.
[Setting Condition]
Connect a receiving antenna to RF INPUT of Spectrum analyzer
and set the unit 10 cm (4 inches) away from the receiving antenna.
Measuring tool: Spectrum analyzer (equivalent to HP8595E)
Jig: Receiving antenna (for Spectrum analyzer)
10 cm
Jig antenna
(Utilize the antenna for handset)
10 cm
[Check the Transmission Wave]
Purpose
It is necessary to check spectrum wave of transmission wave which
is an important factor in order to confirm operational performance
of Spread Spectrum models. If this wave deviates from correct wave
form, normal data transmission cannot be made and, as a result of
that, possibility that occurrence of mute increases and communica-
tion distance becomes shorter will increase.
Measuring process
• Setting Spectrum analyzer:
Center frequency : 904.2 kHz (CH1)
RBW : 30 kHz
VBW : 30 kHz
Span : 3 MHz (or 5MHz)
• Setting Test mode:
Continuous Transmit mode (CH1 High Power)
(Refer to "Test Mode" on page 10)
• Measurement:
Measure transmitting wave.
• Specifications:
Acceptable level [XdB] difference between the highest peak and
the lowest peak of odd side band (the first to seventh side band
from Center Frequency ; Transmission Frequency f
10 dB. (Refer Fig. 1 and Fig. 2)
If output wave form deteriorates, side band appears like Fig. 3
and Fig. 4.
Spectrum
analyzer
Spectrum
analyzer
: CH1) is under
0
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