Realistic PRO-2004 - Alignment Procedures

ALIGNMENT PROCEDURES
•
•
Step
Control Setting
Test Instrument
Adjust
Remarks
Channel Programming
Connection
1 OFF/vOLUME control: Connect DC SSVM to
L309
.
Alignment of VCO (PLL·1)
ON
TP301
L311
1) Select Channel 1
(220.495 MHz)
. .
SQU E LCH control: (Figure 1)
and
adjust L309 for 20V on the DC
Fully counterclockwise
SSVM.
(CCW) .
See Table 1.
Channel Programming:
2) Select Channel 2
(520 MHz) and
CH1 (220.495 MHz)
adjust L311
for 20V on the DC
CH2 (520 MHz)
•
SSVM.
"
.
See Table 1.
Alignment
of VCO (PLL-2)
2
OFF/vOLUME control:
Connect DC SSVM to
L317
Adjust L317
for 3V on the DC SSVM.
,
ON
TP302
See Table 1.
SQUELCH control:
(Figure 2)
-.
•
Fully CCW
Channel Programming:
•
CH3 (804.5 MHz)
,
.
•
Figure 1
TP301
UNIT
.UNOER TEST 1-----
DC SSVM
Table 1
Figure 2
•
TP302
UNIT
DCSSVM
UNDER TEST
'T'
,,,
. -
, I
Coil L309, L311, L317
Coil alignment (open)
Coil alignment (close)
Figure
3
Figure 4
Figure 5
17
Use non
metallic
-
Coil
tuning tool
Coil
Coil~
LI
;'"
t'I
•
VJ
... .....,
•
~
,.c;
PLL P.C.B.
•
PLL P.C.B.
PLL P.C.B.
,
.
NOTE 1:
Perform coils interval alignment * Open the coil as shown
* Close the coil as shown
delicately because it affects
above by using non metallic
above by using
non metallic
.
frequency much. tuning tool when a measuring
tuning tool when a measuring
NOTE
2: Fix the coils with glue after align·
voltage
at TP301 or TP302 is
voltage at TP301 or TP302 is
.
ment and then repeat the ALIGN·
higher
than the setting voltage.
lower
than the setting voltage.
.
MENT PROCEDU RES Step 1, Step
2 after checking the fixation and
.
,
temperature is normal.
.
- 11 -
•
•