Icom IC-R9500 Service Manual - Page 20

Ext. S-meter And Ref. Frequency Adjustments, Vco Adjustments, Adjustment Item, Adjustment Condition

Get Icom IC-R9500 PDF manuals and user guides View all Icom IC-R9500 manuals
Add to My Manuals
Save this manual to your list of manuals

Page 20 highlights

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

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
  • 84
  • 85
  • 86
  • 87
  • 88
  • 89
  • 90
  • 91
  • 92
  • 93
  • 94
  • 95
  • 96
  • 97
  • 98
  • 99
  • 100
  • 101
  • 102
  • 103
  • 104
  • 105
  • 106
  • 107
  • 108
  • 109
  • 110
  • 111
  • 112
  • 113
  • 114
  • 115
  • 116
  • 117
  • 118
  • 119
  • 120
  • 121
  • 122
  • 123
  • 124
  • 125
  • 126
  • 127
  • 128
  • 129
  • 130
  • 131
  • 132
  • 133
  • 134
  • 135
  • 136
  • 137
  • 138
4 - 3
ADJUSTMENT ITEM
ADJUSTMENT CONDITION
OPERATION
VALUE
EXTERNAL S-METER
[EXT Meter]
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.
“0000“
REFERENCE FREQUENCY
[REF]
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]
.
Rotate the [MAIN DIAL] to adjust the
reference frequency.
Push [F-7] key, to return to the main
adjustment menu.
10.000,000 MHz
ADJUSTMENT ITEM
OPERATION
VALUE
LOCK VOLATGE
[1ST DDS LOCK]
Push [F-7] key.
(Automatic
adjustment)
[2LO VCO1- LOCK]
Push [F-7] key.
[2LO VCO2 LOCK]
Push [F-7] key.
[2LO VCO3 LOCK]
Push [F-7] key.
[3LO VCO LOCK]
Push [F-7] key.
[4LO VCO LOCK]
Push [F-7] key.
ADJUSTMENT ITEM
ADJUSTMENT CONDITION
OPERATION
VALUE
VCO OUTPUT LEVEL
[1LO VCO1 LEVEL]
• Connect an RF Power Meter to
J1301 on PLL UNIT.
Rotate
[MAIN DIAL]
to adjust the VCO
output level.
Push [F-7] key.
+1.5 dBm
[1LO VCO2 LEVEL]
(same as above)
Rotate
[MAIN DIAL]
to adjust the VCO
output level.
Push [F-7] key.
[1LO VCO3 LEVEL]
(same as above)
Rotate
[MAIN DIAL]
to adjust the VCO
output level.
Push [F-7] key, to return to the main
adjustment menu.
+2.0 dBm
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.
NOTE:
HOLD
the adjustment condition (SG level and frequency
etc.) until next ADJ item is displayed.
4-3 VCO ADJUSTMENTS [VCO]
PLL UNIT
J1301
• Push [F-3•VCO] key to select VCO ADJUSTMENT.