Rf Meter Adjustment; Meter Reference Adjustment - Icom IC-821H Service Manual

• METER AND SQUELCH ADJUSTMENT (CONTINUED)
DISPLAY
ADJUSTMENT ADJUSTMENT CONDITIONS
MAIN BAND
SUB BAND 17 • Set an SSG output level as:
FM
S-METER 0.45IJ,V" (-114 dBm)
5'
r
a
_, L'
18 • Set an SSG output level as:
FM
3.2 IJ,V" (- 97 dBm)
5'
r
_, L'
9
19 • Set an SSG output level as:
FM
32 IJ,V" (-77 dBm)
5'
r _, L'
sa
SUB BAND 20 • Set an SSG output level as:
FM
NOISE SOL 0.063IJ,V" (-131 dBm)
na
15E5
21 • Set an SSG output level as:
FM
0.2 IJ,V" (-121 dBm)
na
15Et:
SUB BNAD 22 • Set an SSG output level as:
FM
[Ent:E,-
"This output level of standard signal generator (SSG) is indicated as SSG's open circuit.
5-7 RF METER ADJUSTMENT
• ADJUSTMENT
1
1
DISPLAY
ADJUSTMENT ADJUSTMENT CONDITIONS
MAIN BAND
ENTERING • Connect a terninator to the [REMOTE]
ADJUSTMENT connector on the rear panel.
SET MODE • While pushing the [CALL] switch, turn
5[Rn
power ON.
RF METER 1
• Connect an RF meter to the [VHF ANT]
connector.
FM
VFOA
• [RF PWR]
: Max. level
1'-15. 120.0
,
,
• Transmitting
5-8 METER REFERENCE ADJUSTMENT
OPERATION
SUB BAND
Push [CALL].
FM • Verify "SO" on the
/'-{s.oeao
11
bar-meter.
Push [CALL].
FM
• Verify "S9" on the
/'-{s.oeao
18
bar-meter.
Push [CALL].
FM
• Verify "S60" on the
/'-{S.02CLO
1'3
bar-meter.
FM
Push [CALL].
/'-{S.02CLO
c'a
FM
Push [CALL].
/'-{S.Oc'aO
c'
I
FM
-
Push [CALL].
/'-{S.OeCLO
c'2
OPERATION
SUB BAND
Push [DOWN] to enter RF
meter set mode.
d,.,
uP
00
Push [CALL]
FM
• Verify "80 %" (S9+40) on
,_,e :='0
30
the analog RF meter.
NOTE:
This adjustment is not necessary unless the CPU or EEPROM ICs are replaced. The set data would not be cleared by CPU resetting.
• ADJUSTMENT
DISPLAY
ADJUSTMENT ADJUSTMENT CONDITIONS
OPERATION
MAIN BAND
SUB BAND
ENTERING • Connect a terminator to the [REMOTE]
! Push [SCAN] to enter meter
ADJUSTMENT connector on the rear panel.
5[Rn
reference set mode. Once
SET MODE
• While pushing the [CALL] switch, turn
d,.,
uP
00
entering mode, use [UP] /
power ON.
[DOWN] switch to select item.
IF SHIFT 1
• Set the [IF SHIFT] and [RIT] to center Push [CALL].
CENTER position.
[EntEr
Rrr:
51-1
1Ft
2'/
POSITION
METER 2
• Set the analog meter indication to "S 1"
f'/E tE,
Push [CALL].
INDICATION by the [DIAL].
51 C,
,
25
,
3 • Set the analog meter indication to "S9"
f'/E tE,
Push [CALL].
by the [DIAL]. 5/C, 9
26
4 • Set the analog meter indication to
I'IE tE,
Push [CALL].
"S9+20" by the [DIAL].
51 C, ,:'[1
21
5
• Set the analog meter indication to
I'IE tE,
Push [CALL].
"S9+60" by the [DIAL].
51 C, GO
2B
5 -13