Equipment information
Icom i706MK II G Transceiver
Manufacturer:
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Model:
i706MK II G
Date:
1999
Category:
Group:
Description:
HF/VHF/UHF ALL MODE TRANSCEIVER
Information
n GENERAL
• Frequency coverage :
Receive 0.030 – 200.000 MHz*
430.000 – 470.000 MHz*
Transmit 1.800 – 1.999 MHz*
3.500 – 3.999 MHz*
7.000 – 7.300 MHz*
10.100 – 10.150 MHz
14.000 – 14.350 MHz
18.068 – 18.168 MHz
21.000 – 21.450 MHz
24.890 – 24.990 MHz
28.000 – 29.700 MHz
50.000 – 54.000 MHz*
144.000 – 148.000 MHz*
430.000 – 450.000 MHz*
*Depending on version.
• Mode : USB, LSB, CW, RTTY (FSK), AM, FM,
WFM (WFM is for Receiver only)
• Number of memory ch. : 107 (99 regular, 6 scan edges,1 call)
• Antenna connector : SO-239 5 2
(for HF/50 MHz and 144/440 MHz)/50 ½
• Power Supply requirement : 13.8 V DC ±15% (negative ground)
• Frequency stability : Less than ± 7 ppm from 1 min. to 60
min. after power ON. After that, rate of
stability less than ±1 ppm/hr. at +25°C
(+77°F). Temperature fluctuations 0°C
to +50°C (+32°F to +122°F) less than
± 5 ppm.
• Current consumption :
Transmit max. power 20 A
Receive standby 1.8 A
max. audio 2.0 A
• Usable temperature range : –10°C to +60°C (+14°F to +140°F)
• Dimensions : 167(W) 5 58(H) 5 200(D) mm
(projections not included) 69⁄16(W) 5 29⁄32(H) 5 77⁄8(D) inch
• Weight : 2.45 kg (5 lb 6 oz)
• CI-V connector : 2-conductor 3.5 (d) mm (1/8")/8 ½
• ACC connector : 13-pin
n TRANSMITTER
• Output power :
1.8–50 MHz band SSB/CW/RTTY/FM 5–100 W
AM 2–40 W
144 MHz band SSB/CW/RTTY/FM 5–50 W
AM 2–20 W
440 MHz band SSB/CW/RTTY/FM 2–20 W
AM 2–8 W
• Modulation system :
SSB Balanced modulation
AM Low level modulation
FM Variable reactance modulation
• Spurious emissions :
Below 47.5 MHz Less than –50 dB (typical)
Above 47.5 MHz Less than –60 dB
• Carrier suppression : More than 40 dB
• Unwanted sideband supp. : More than 50 dB
• Microphone connector : 8-pin modular jack (600 ½)
• KEY connector : 3-conductor 6.35 (d) mm (1/4")
• RTTY connector : 3-conductor 3.5 (d) mm (1/8")
n RECEIVER
• Receive system :
SSB/CW/AM/WFM Double superheterodyne
FM Triple superheterodyne
Manual Type:
Service Manual
Pages:
85
Size:
12.99 Mbytes (13617147 Bytes)
Language:
english
Revision:
Manual-ID:
A-5564HI-S
Date:
Quality:
Electronic document, no scan, very well readable.
Upload date:
2012 02 11
MD5:
86ebb13c60e9a1970d26681e5ba7049c
Downloads:
2026
Information
SECTION 1 SPECIFICATIONS
SECTION 2 INSIDE VIEWS
SECTION 3 CIRCUIT DESCRIPTION
3 - 1 Receiver CIRCUITS ... 3 - 1
3 - 2 Transmitter CIRCUITS ... 3 - 4
3 - 3 PLL CIRCUITS ... 3 - 6
3 - 4 LOGIC CIRCUITS ... 3 - 8
SECTION 4 ADJUSTMENT PROCEDURES
4 - 1 PREPARATION BEFORE SERVICING ... 4 - 1
4 - 2 PLL ADJUSTMENTS ... 4 - 2
4 - 3 Transmitter ADJUSTMENTS ... 4 - 2
4 - 4 Receiver ADJUSTMENTS ... 4 - 8
4 - 5 SET MODE ADJUSTMENT ... 4 - 10
SECTION 5 PARTS LIST
SECTION 6 MECHANICAL PARTS AND DISASSEMBLY
SECTION 7 SEMI-CONDUCTOR INFORMATION
SECTION 8 BOARD LAYOUTS
8 - 1 DISPLAY BOARD ... 8 - 1
8 - 2 MAIN BOARD ... 8 - 3
8 - 3 HPF AND DRIVER BOARD ... 8 - 5
8 - 4 PA UNIT ... 8 - 7
8 - 5 PLL UNIT ... 8 - 9
8 - 6 FILTER BOARD ... 8 - 11
SECTION 9 BLOCK DIAGRAM
SECTION 10 VOLTAGE DIAGRAM