Icom IC-R7O Maintenance Manual page 41

Adjustment — | Canditions Unit Measurement
iterrs for adjustment location
Noise .| @* RE GAIN: completely MAIN Connect OC voltmeter
blanker | to left te O6 collector.
* NB: OFF
Input pulse-like noise Connect oscilloscope
fron ANT, to DS.
@ NB: ON
Note: If adjustment 3 location is turned too much, reception ser
reception sensitivity and readjustment of total gain.
MAIN UNIT
L15
Total gain adj. Lid - Total
Lid
Seem eee eS ee ee
: OF TION
FILTER
ae
GP TION
Fit UNE
R204
Noise blanker La
adj.
Total gain L3
adj.
"L?
a= D9
Adjustment Adjustment
value locatian
4.3 R204
Miaxinn win
pulse-like nose
waveform
Minimurn ; L3, L4
pulse-like noise |
waveform
sitivity will be affected, requiring checking of
gain acd. 2 ae
L273 Ld
eo as
ifs
-f
fd
R136 § threshold
Ri3? $9+40dB
S-meter adj,