Icom IC-7100 Service Manual Addendum page 4

November 2018
4-2 ADJUSTMENT ON THE MAIN UNIT
ADJUSTMENT ITEM
TRANSCEIVER'S CONDITION OPERATION
• Receive
COIL PRESET
• Frequency
MIXER BALANCE
• Mode
• PREAMP
• Receive
• THE LOCATION OF ADJUST/CHECK POINTS ON THE MAIN UNIT
<TOP VIEW>
[SP]
MIXER BALANCE
Check point
• BOTTOM VIEW
<BOTTOM VIEW>
(Replacement page)
• S et the core as shown to the
right.
: 1.821 MHz
1) Connect the millivoltmeter to
: LSB
[SP].
: OFF
2) Adjust the noise level.
CHECK
POINT
–
[SP]
L4201, L4202, L4251
COIL PRESET
Adjust point
4-2
ADJUST
VALUE
POINT
L4201
flush
Core
L4202
L4251 0.5 rotations
R3237 Minimum noise level
R3237
MIXER BALANCE
Adjust point
J401
flush
Core
Core