Main Unit (Right Side) - Icom IC-A14 Service Manual

MAIN UNIT (Right side)

RFDETV
MOD
POW
REFV
T4
HV
TXV
TXLO
T:0.0V
R:4.5V
R5S
IC1
2nd LO C731 82P 1 20
OSC[B] MIX_IN
2 19
OSC[E] V+
FI2 3 18
MIX_OUT AM_AGC_IN
CFWM450D 4 17
GND RF_AGC_OUT
C726 0.01 5 16
IO AM_IF_IN RSSI_OUT
C724 0.1 6 15
AM_DEC AM_SW
C727 0.01 7 14
FM_IF_IN AM_AF_OUT
8 13
C725 0.1
FM_DEC AMP_OUT
9 12
C728 39P
FM_IF_OUT AMP_IN
10 11
C729 8P
QUAD_IN FM_AM_OUT
NJM2552V
R784 X4
R73 R72
100
JTBM450CX24
R840
47K 470
R783 1k
10K R792
C744
0.01 10K
FMDET
AM DET
NOISE
RSSI
LO
VCC
TP76N00N
R824
GND
POW
J2
REFV
CP19
T4
CP18
GND
CP17
APC
CP16
PA UNIT
J3
(page 11-4)
CP10
HV
CP11
TXV
CP15
GND
CP12
TX
100K
T:0.0V
R:1.8V
R787
1st IF
C743 C90
C739
0.001 0.001 R799
C87
0.01
330
0.001
Q13
2SC5006
C733
R874
0.01
C734 2.2K
0.047
C771
0.0033
RSSI RF AGC
MP 3
2721
MP 8
2927
COMMON
CONTROL
RX
TX
9 - 3
RFDETV RX
MO D
CP20
LPF
CP06S
CP21
GND
CP06S
J1
CP27
HV
HV
CP7
CP28
HV
HV
CP2
CP2
GND
T:0.0V
R:4.5V
C78
FI3
18P
FL-417
OUT GND R350
C61
2 3
GND IN Q12
4 1
330 0.001
3SK324
L93
68N
M A2S077
C80 R336 C776
LO
D17 12P 68 15P
RF AGC
Q85
UNR9213 J
CP06S
CP22
CP06S
CP23
ANT UNIT
(page 11-4)
CP25
BATT +
DC UNIT
CP26
BATT -
(page 11-4)
T:0.0 V
R:4.6V
3P
C325
C67
C62
0.001 18P
Q11
3SK293
R311
C782
220K
2P
C328
0.001
T:0.0 V
R:2.2V
(No RX signals)
R794
0
CP20
AN T
CP06S
C329
HVC375B
2P
0.001 C801
C58 C770
C720 0.001
10P 47P
D90
MA2S728
0 0
Q80
2SC4738
R776 R775
*; Refer to "PARTS LIST."