Icom IC-7400 Service Manual

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M.=Mounted side (T: Mounted on the Top side, B: Mounted on the Bottom side)
[TEN-KEY UNIT]
REF ORDER
DESCRIPTION
NO. NO.
R1 7030003540 S.RES ERJ3GEYJ 682 V (6.8K)
R2 7030003540 S.RES ERJ3GEYJ 682 V (6.8K)
R3 7030003540 S.RES ERJ3GEYJ 682 V (6.8K)
R4 7030003480 S.RES ERJ3GEYJ 222 V (2.2K)
R5 7030003480 S.RES ERJ3GEYJ 222 V (2.2K)
R6 7030003480 S.RES ERJ3GEYJ 222 V (2.2K)
R7 7030003520 S.RES ERJ3GEYJ 472 V (4.7K)
R8 7030003520 S.RES ERJ3GEYJ 472 V (4.7K)
R9 7030003520 S.RES ERJ3GEYJ 472 V (4.7K)
R10 7030003580 S.RES ERJ3GEYJ 153 V (15K)
R11 7030003580 S.RES ERJ3GEYJ 153 V (15K)
R12 7030003580 S.RES ERJ3GEYJ 153 V (15K)
R15 7030003540 S.RES ERJ3GEYJ 682 V (6.8K)
R16 7030003480 S.RES ERJ3GEYJ 222 V (2.2K)
R17 7030003520 S.RES ERJ3GEYJ 472 V (4.7K)
R18 7030003580 S.RES ERJ3GEYJ 153 V (15K)
R19 7030003540 S.RES ERJ3GEYJ 682 V (6.8K)
R20 7030003480 S.RES ERJ3GEYJ 222 V (2.2K)
R21 7030003520 S.RES ERJ3GEYJ 472 V (4.7K)
R22 7030003580 S.RES ERJ3GEYJ 153 V (15K)
R23 7030003540 S.RES ERJ3GEYJ 682 V (6.8K)
R24 7030003480 S.RES ERJ3GEYJ 222 V (2.2K)
R25 7030003520 S.RES ERJ3GEYJ 472 V (4.7K)
C1 4030011600 S.CER C1608 JB 1E 104K-T
C2 4030011600 S.CER C1608 JB 1E 104K-T
C3 4030011600 S.CER C1608 JB 1E 104K-T
C4 4030011600 S.CER C1608 JB 1E 104K-T
C5 4030011600 S.CER C1608 JB 1E 104K-T
C7 4030011600 S.CER C1608 JB 1E 104K-T
J1 6510019991 S.CON 52808-2271(2291)
DS1 5040002360 S.LED CL-220HR-C-TU
DS2 5040002220 S.LED CL-220YG-C-TU
DS3 5040002360 S.LED CL-220HR-C-TU
DS4 5040002220 S.LED CL-220YG-C-TU
DS5 5040002220 S.LED CL-220YG-C-TU
S.=Surface mount
[PBT UNIT]
REF ORDER
DESCRIPTION
NO. NO.
R2 7030003560 S.RES ERJ3GEYJ 103 V (10K)
R3 7030003560 S.RES ERJ3GEYJ 103 V (10K)
R4 7030003560 S.RES ERJ3GEYJ 103 V (10K)
R5 7030003560 S.RES ERJ3GEYJ 103 V (10K)
R6 7030003560 S.RES ERJ3GEYJ 103 V (10K)
R7 7030003560 S.RES ERJ3GEYJ 103 V (10K)
J1 6510019971 S.CON 52808-1071
S1 2250000440 ENC TP90N00E20-22.5F-2494
S2 2250000410 ENC TP90D96E20-30F-2178-1

Icom IC-7400 Specifications

General

Frequency Range TX	1.8-54 MHz
Frequency Range RX	0.03-60 MHz
Modes	SSB, CW, RTTY, AM, FM
Output Power	100W (HF/50MHz), 50W (144MHz)
Receiver Type	Triple conversion superheterodyne
Antenna Connector	SO-239
IF Rejection	More than 70 dB
Supply Voltage	13.8 V DC ±15%
Current Drain RX	1.5 A
Image Rejection	More than 70 dB
Audio Output Power	2 W
Current Drain TX	20 A
Sensitivity	0.13 μV (SSB/CW)
Selectivity	SSB: 2.4 kHz