Icom IC-R7000 Service Manual

SECTION 3 BLOCK DIAGRAM
RF UNIT
ATT (-20dB)
I
/ CONV
I ....__ _ ___..........,
T
L-------------------
osc
TRIPLER BUFFER
X1 r::::::J
DOUBLER
Q1
2SC2367
X3
TRIPLER
Q16
2SC2026
ATTSW
(FRONT)
3SK121
1SV50E
x 4
55.555 MHz
;:+;
MAIN UNIT
3SK121
152208
x 5
PLL UNIT
IC4
M54466
1110
IC7
HD10551
c:J
X1 12.00MHz-;;:::;.
IC1, 2
BPF CTRL
NJM4558Dx2
IC3
LO TRAP I--~------_,
CTRL
NJM4558D
409.6MHz
343.2MHz
445.6MHz
RF AMP
2SC3355 LO TRAP
VCO SWITCH
Q8, Q14
2SA1015x2
2SA1015
x3
UNLOCK
MUTE
X2
LOSW
Q20-Q22
2SC3355
1st
MIXER
IC6 BUFFER
DM88X 2SC3355
Fl1
1st LO (266. 7 MHz:
x2
768MHz
(778.70-
1290.6999MHz)
FROM
LOGIC
BUFFER
LO AMP
c
[
X2
51.2MHz
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Amateur Radio Directory

Icom IC-R7000 Specifications

General

Brand	Icom
Model	IC-R7000
Category	Receiver
Language	English