Motorola ASTRO Digital XTS 3000 Manual de serviço básico - Página 28

Procurar online ou descarregar pdf Manual de serviço básico para Rádio portátil Motorola ASTRO Digital XTS 3000. Motorola ASTRO Digital XTS 3000 48 páginas. Handheld radio
Também para Motorola ASTRO Digital XTS 3000: Manual do operador (12 páginas)

Imprimir página
Motorola ASTRO Digital XTS 3000 Manual de serviço básico
Transmit
Deviation
Limit
Alignment
18
F
7. Press
. This will cause the radio's DSP IC to change the injection tone
to 3kHz, 100mVrms. Use the
within ±2% of the value recorded in step 5.
8. Repeat steps 4-7 until the 3kHz tone deviation is within ±2% of the 80Hz
tone deviation.
F
9. Press
again to dekey the radio.
H
10.Press
to program the new softpot value.
11.Repeat steps 3-10 for the remaining frequencies.
J
12.Press
once to return to the TRANSMITTER ALIGNMENT MENU, or
J
press
twice to return to the SERVICE MENU.
IMPORTANT NOTE:
Put the radio in the RF test mode and scroll to
the ASTRO test environment, indicated by
"AST"
"Performance Checks" section for details). All
other deviation values are derived from the
ASTRO test environment mode transmit
deviation limit.
1. From the SERVICE MENU, press
ALIGNMENT MENU.
E
2. Press
to select the TRANSMIT DEVIATION LIMIT alignment screen.
The screen will indicate the transmit frequencies to be used. See Figure 7.
MOTOROLA Radio Service Software
ASTRO
Model: H09UCH9PW7AN
MAIN:SERVICE:TX ALIGN:VCO ATTN
Frequency
---------
806.000
815.000
824.000
851.000
860.000
869.000
0
MIN |----+----+----+----+----+----+----+----+X---+----+----+----| MAX
F1
F2
HELP

Figure 7 Transmit Deviation Limit Alignment Screen

P
Z
3. Press
(or
the lowest frequency shown).
F
4. Press
to key the radio. Then use the
deviation per the values shown in Table 11.
É
Ç
/
arrow keys to adjust the deviation to
on
the
display
(refer
B
to select the TRANSMITTER
Use UP/DOWN Arrows To Adjust Softpot.
TRANSMIT DEVIATION LIMIT
------------------------
Current
Value
-------
175
175
180
180
180
180
Transmitter..Off
F3
F4
F5
F6
TOGGLE
PTT
or [RETURN]) to select a frequency field (starting with
É
to
the
New Softpot Value
-----------------
175
175
180
180
180
180
F7
F8
F9
PROGRAM
VALUE
Ç
/
arrow keys to adjust for a
255
F10
EXIT