Ext. S-Meter And Reference Frequency Adjustments; Vco Adjustments - Icom IC-R9500 Service Manual Addendum

4-2 EXT. S-METER AND REFERENCE FREQUENCY ADJUSTMENTS [EXT Meter], [REF]
NOTE: HOLD the adjustment condition (SG level and frequency etc.) until next ADJ item is displayed.
ADJUSTMENT ITEM
EXTERNAL S-METER
[EXT Meter]
REFERENCE FREQUENCY
[REF]
4-3 VCO ADJUSTMENTS [VCO]
• Push [F-3•VCO] key to select VCO ADJUSTMENT.
NOTE: HOLD the adjustment condition (SG level and frequency etc.) until next ADJ item is displayed.
ADJUSTMENT ITEM
LOCK VOLATGE
[1ST DDS LOCK]
[2LO VCO1- LOCK]
[2LO VCO2 LOCK]
[2LO VCO3 LOCK]
[3LO VCO LOCK]
[4LO VCO LOCK]
ADJUSTMENT ITEM
VCO OUTPUT LEVEL
[1LO VCO1 LEVEL]
[1LO VCO2 LEVEL]
[1LO VCO3 LEVEL]
ADJUSTMENT CONDITION
1) Push [F-1•PRESET] key to select EXTERNAL S-METER ADJUSTMENT.
2) Rotate the [MAIN DIAL] to set the ADJ value.
Push [F-7] key, to return to the main adjustment menu.
NOTE: Wait 5 minutes or more after the power is turned ON to perform the adjustment
properly.
1) Push [F-2•REF] key to select REFERENCE FREQUENCY ADJUSTMENT.
2) Connect a Frequency Counter
to [REF I/O].
Push [F-7] key.
Push [F-7] key.
Push [F-7] key.
Push [F-7] key.
Push [F-7] key.
Push [F-7] key.
ADJUSTMENT CONDITION
• Connect an RF Power Meter to
J1301 on PLL UNIT.
(same as above)
(same as above)
PLL UNIT
OPERATION
Rotate the [MAIN DIAL] to adjust the
reference frequency.
Push [F-7] key, to return to the main
adjustment menu.
OPERATION
OPERATION
Rotate [MAIN DIAL] to adjust the VCO
output level.
Push [F-7] key.
Rotate [MAIN DIAL] to adjust the VCO
output level.
Push [F-7] key.
Rotate [MAIN DIAL] to adjust the VCO
output level.
Push [F-7] key, to return to the main
adjustment menu.
4 - 7
VALUE
"0000"
10.000,000 MHz
VALUE
(Automatic
adjustment)
VALUE
+1.5 dBm
+2.0 dBm
J1301