
CONTENTS
SECTION 1 SPECIFICATIONS
SECTION 2 INSIDE
VIEWS
SECTION 3 DISASSEMBLY
INSTRUCTIONS
SECTION 4 CIRCUIT
DESCRIPITON
4-1
RECEIVER CIRCUITS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
4-2
PLL CIRCUITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
4-3
POWER SUPPLY CIRCUITS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8
4-4
PORT ALLOCATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8
SECTION 5 ADJUSTMENT
PROCEDURES
5-1
METER REFERENCE ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
5-2
POWER SUPPLY VOLTAGE AND PLL ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
5-3
RECEIVER ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
5-4
RF-C BPF TUNED VOLTAGE ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7
5-4
NOISE SQUELCH, S-METER AND CENTER INDICATOR ADJUSTMENT . . . . . . . . . . . . . . . 5-9
5-4
S-METER FLAT ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10
SECTION 6 PARTS
LIST
SECTION 7
MECHANICAL PARTS AND DISASSEMBLY
SECTION 8 SEMICONDUCTOR
INFORMATION
SECTION 9 BOARD
LAYOUTS
9-1
FRONT (JACK, VR-A/B, SW-A/B and VCO-B/C UNITS). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1
9-2
MAIN-A UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-3
9-3
RF-C/D, MIX-A and CONV-B UNITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-5
9-4
PLL-B UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-7
SECTION 10 BLOCK
DIAGRAM
SECTION 11 VOLTAGE
DIAGRAM
Содержание iC- r8500
Страница 1: ...SERVICE MANUAL ADDENDUM CONTENTS REPLACEMENT PAGE 5 3 PARTS LIST 1 VOLTAGE DIAGRAM 21 Jun 2011...
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Страница 50: ...SERVICE MANUAL ADDENDUM CONTENTS REPLACEMENT PAGES 5 5 5 6 PARTS LIST 1 VOLTAGE DIAGRAM 21 Jan 2011...
Страница 52: ...Replacement page Jan 2011 5 6 MAIN A UNIT CP2 Noise blanker check point...
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Страница 177: ...SERVICE MANUAL ADDENDUM CONTENTS PARTS LIST 1 BOARD LAYOUTS 20 VOLTAGE DIAGRAM 28 Jul 2008...
Страница 213: ...S 14318XZ C1 Nov 2006 COMMUNICATIONS RECEIVER...
Страница 220: ...4 1 SECTION 4 CIRCUIT DESCRIPTION UNIT NAME MAIN MAIN A RF A RF C RF B RF D MIX MIX A CONV CONV B PLL PLL B...
Страница 221: ...4 2 UNIT NAME MAIN MAIN A RF A RF C RF B RF D MIX MIX A CONV CONV B PLL PLL B...
Страница 222: ...4 3 UNIT NAME MAIN MAIN A RF A RF C RF B RF D MIX MIX A CONV CONV B PLL PLL B...
Страница 223: ...4 4 UNIT NAME MAIN MAIN A RF A RF C RF B RF D MIX MIX A CONV CONV B PLL PLL B...
Страница 224: ...4 5 UNIT NAME MAIN MAIN A RF A RF C RF B RF D MIX MIX A CONV CONV B PLL PLL B...
Страница 225: ...4 6 UNIT NAME MAIN MAIN A RF A RF C RF B RF D MIX MIX A CONV CONV B PLL PLL B...
Страница 226: ...4 7 UNIT NAME MAIN MAIN A RF A RF C RF B RF D MIX MIX A CONV CONV B PLL PLL B...
Страница 227: ...4 8 UNIT NAME MAIN MAIN A RF A RF C RF B RF D MIX MIX A CONV CONV B PLL PLL B...
Страница 228: ...4 9 UNIT NAME MAIN MAIN A RF A RF C RF B RF D MIX MIX A CONV CONV B PLL PLL B...
Страница 229: ...4 10 UNIT NAME MAIN MAIN A RF A RF C RF B RF D MIX MIX A CONV CONV B PLL PLL B...
Страница 230: ...5 1 SECTION 5 ADJUSTMENT PROCEDURE MAIN A PLL B PLL B MAIN A...
Страница 231: ...5 2 PLL B MAIN A...
Страница 233: ...5 4 MAIN A MIX A AND RF C UNITS CONBV B AND RF C UNITS...
Страница 234: ...5 5 MAIN A MAIN A MAIN A MAIN A MAIN A MAIN A MAIN A...
Страница 235: ...5 6 MAIN A UNIT...
Страница 236: ...5 7 RF C BPF TUNED VOLTAGE ADJUSTMENT RF C BPF...
Страница 237: ...5 8 RF C BPF TUNED VOLTAGE ADJUSTMENT continued RF C BPF...
Страница 238: ...5 9 RF C BPF...
Страница 239: ...5 10...
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Страница 265: ...SECTION 8 SEMICONDUCTOR INFRMATION 8 1...
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Страница 286: ...1 1 32 Kamiminami Hirano ku Osaka 547 0003 Japan S 14318XZ C1 2006 Icom Inc...