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Make/Model Information:

  • Brand:   Icom
  • Models included:
    • Icom IC-E7

File Information:

  • Type:   Factory Service Manual (FSM)
  • Language:   English (EN)
  • Number of pages:   35
  • File size:  ∼ 2.50 MB
  • File Format:   PDF only
  • SME Watermarks:   None
  • Password lock:   No
  • Edit/copy/modify:   Yes
  • SKU:   ROIC-0060

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SERVICE
MANUAL
VHF/UHF DUALBAND FM TRANSCEIVER
S-14217HZ-C1
Nov. 2005
INTRODUCTION
This service manual describes the latest service information
for the IC-E7 VHF/UHF DUALBAND FM TRANSCEIVER at
the time of publication.
ORDERING PARTS
Be sure to include the following four points when ordering
replacement parts:
1. 10-digit Icom parts number
2. Component name and informations
3. Equipment model name and unit name
4. Quantity required

5030002860 LCD A01B004X IC-E7 Main unit 5 pieces
8810008990 Screw PH B0 2× 10 ZK IC-E7 Chassis 10 pieces
Addresses are provided on the inside back cover for your
convenience.
REPAIR NOTES
1. Make sure the problem is internal before disassembling the transceiver.
2. DO NOT open the transceiver until the transceiver is disconnected from its power source.
3. DO NOT force any of the variable components. Turn them slowly and smoothly.
4. DO NOT short any circuits or electronic parts. An insulated turning tool MUST be used for all adjustments.
5. DO NOT keep power ON for a long time when the transceiver is defective.
6. DO NOT transmit power into a signal generator or a sweep generator.
7. ALWAYS connect a 30 dB to 40 dB attenuator between the transceiver and a deviation meter or spectrum analyzer when
using such test equipment.
8. READ the instructions of test equipment thoroughly before connecting equipment to the transceiver.
To upgrade quality, all electrical or mechanical parts and internal
circuits are subject to change without notice or obligation.
MODEL VERSION SYMBOL
Europe EUR
Italy ITR
France FRA
United Kingdom UK
Icom, Icom Inc. and logo are registered trademarks of Icom Incorporated (Japan) in the United States, the United
Kingdom, Germany, France, Spain, Russia and/or other countries.
NEVER connect the transceiver to an AC outlet or to a DC
power supply 3.7 V. Such a connection could cause a fire or
electric hazard.
DO NOT expose the transceiver to rain, snow or any liquids.
DO NOT reverse the polarities of the power supply when
connecting the transceiver.
DO NOT apply an RF signal of more than 20 dBm (100 mW)
to the antenna connector. This could damage the trans-
ceiver's front end.
TABLE OF CONTENTS
SECTION 1 SPECIFICATIONS
SECTION 2 INSIDE VIEWS
SECTION 3 DISASSEMBLY INSTRUCTIONS
SECTION 4 CIRCUIT DESCRIPITON
4 - 1 RECEIVER CIRCUITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 1
4 - 2 TRANSMITTER CIRCUITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 2
4 - 3 PLL CIRCUITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 3
4 - 4 PORT ALLOCATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 4
4 - 5 POWER SUPPLY CIRCUITS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 5
SECTION 5 ADJUSTMENT PROCEDURES
5 - 1 PREPARATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 1
5 - 2 FREQENCY AND TRANSMIT ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 - 4
5 - 3 RECEIVE ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 5
SECTION 6 PARTS LIST
SECTION 7 MECHANICAL PARTS AND DISASSEMBLY
SECTION 8 SEMICONDUCTOR INFORMATION
SECTION 9 BOARD LAYOUTS
9 - 1 MAIN UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 - 1
9 - 2 PA BOARD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 - 1
9 - 3 VCO BOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 - 1
SECTION 10 BLOCK DIAGRAM
SECTION 11 CIRCUIT DIAGRAM
SECTION 12 BC-164
SECTION 1 SPECIFICATIONS
GENERAL
• Frequency range :
Version Transmit (MHz) Receive (MHz)
[EUR],
144.000–146.000
430.000–440.000 0.495–999.990
144.000–146.000
430.000–434.000
435.000–438.000
144.000–146.000
430.000–434.000
435.000–438.000
[FRA] 146.000–146.000
430.000–440.000
0.495–29.995
50.200–51.200
76.000–135.995
144.000–146.000
430.000–440.000
• Operating mode : FM, AM*, WFM* (*RX only)
• Memory channels : 1000 channels
• Call channels : 2 channels
• Scan types : F u ll/Program/Priority/
Memory Channel/Bank/
Bank-Link/Skip/Tone
• Frequency stability : ±6 ppm (–10°C to +60°C)
• Tuning steps : 5/6.25/8.33/9/10/12.5/15/20/
25/30/50/100 and 200 kHz
• Antenna impedance : 50 ? (SMA type)
• Power supply requirement : Speci? ed Icom's battery
pack only
(operating voltage 3.7 V)
• Current drain :
TRANSMIT VHF High 1.5 A
Low 0.4 A (approx.)
UHF High 1.5 A
Low 0.5 A (approx.)
RECEIVE Stand-by 80 mA (approx.)
Max. audio
Less than 150 mA
• Operating temp. range : –10°C to +60°C
• Dimensions
(projections not included)
: 47 (W) × 81 (H) × 28 (D) mm
• Weight
(antenna, BP-243 included)
: 160 g (approx.)
• MIC/SP connector : 4-conductor 3.5 (d) mm; ( 1 /8 '')
2 k?/8 ?
TRANSMITTER
• Output power :
1.5 W (High)
0.1 W (Low; aprrox.)
1.0 W (High)
0.1 W (Low; aprrox.)
• Modulation system : Variable reactance frequency
modulation
• Maximum deviation : ±5.0 kHz
• Spurious emissions : Less than –60 dB (TX High)
Less than –50 dB (TX Low)
RECEIVER
• Receiving system : Double conversion
superheterodyne system
• Intermediate frequencies :
FM, AM 1st; 46.35 MHz
2nd; 450 kHz
WFM 1st; 14.85 MHz
2nd; 450 kHz
• Sensitivity* :
(except spurious points; maximum sensitivity)
Frequency (MHz) FM AM WFM
0.495–4.995 – +7 dBµ
– 5.000–29.995 +3 dBµ
30.000–75.995 –7 dBµ
– 76.000–89.995 +5 dBµ 90.000–107.995
–14 dBµ 108.000–117.995
118.000–136.995 +3 dBµ
137.000–143.995
144.000–147.995 –15 dBµ
148.000–179.995 –14 dBµ
330.000–369.995 +5 dBµ
370.000–399.995 –10 dBµ
400.000–429.995 –13 dBµ
430.000–449.995 –15 dBµ
450.000–499.995 –5 dBµ
600.000–799.990 0 dBµ +8 dBµ
799.995–939.990 – 940.000–999.990 +5 dBµ
*FM and WFM are measured at 12 dB SINAD, AM is easured
at 10 dB S/N.
• Squelch sensitivity
(at threshold)
: Less than –15 dBµ
• Selectivity :
FM, AM More than 12 kHz/6 dB
Less than 30 kHz/60 dB
WFM More than 150 kHz/10 dB
Less than 700 kHz/20 dB
• Spurious image rejection : More than 40 dB
• Audio output power : More than 50 mW at 10%
distortion with an 8 ? load
All stated speci? cations are subject to change without notice or obligation.
¤ ENTERING ADJUSTMENT MODE
q Turn the power OFF.
w Connect the JIG cable (see page 5-1) to the [MIC/SP] jack.
e Turn the "S1" of the JIG cable ON.
r While pushing [FUNC], [BAND] and [ Y] key, turn the
power ON.
t Turn the "S1" of the JIG cable OFF, then start the adjust
ment.
During adjustment mode, the function dispaly shows the ad-
justment item, frequency, etc. as below.
!DJUSTMENT ??? !DJUSTMENT ????????
¤ QUITING ADJUSTMENT MODE
• Turn the power OFF.
¤ KEY ASSIGNMENTS FOR ADJUSTMENT MODE
• : Selects the next adjustment item.
• : Selects the previous adjustment item.
• [DIAL] : Adjusts the value for the item manually.
• + : Adjusts the value for the item automatically.
• : Stores the set value.
NOTE: The set value storing is inhibited
during transmit. Release PTT
switch to return to receive first,
then push this key to store the
set value.
1-1-32, Kamiminami, Hirano-ku, Osaka 547-0003, Japan S-14217HZ-C1
© 2005 Icom Inc.


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