3 - 1
SECTION 3
DISASSEMBLY INSTRUCTION
Removing the front panel
q
Remove 6 screws from the top of the receiver and
4 screws from its sides.
w
Carefully lift up the top cover while disconnecting
the plug from the speaker cable.
e
Turn the receiver upside down.
r
Remove 6 screws from the bottom cover, then
lift up the bottom cover.
UT-102
VOICE SYNTHESIZER UNIT
The UT-102 announces the accessed frequency in a
clear, electronically generated voice, in English (or
Japanese) when pushing [SPCH] or when a signal is
detected during scan.
q
Remove the top cover.
w
Remove the protected paper attached to the bot-
tom of the UT-102 to expose the adhesive strip.
e
Connect the UT-102 as shown in the diagram at
right.
r
Replace the top cover.
J12
UT-102
FL-52A
CW NARROW FILTER
The IC-R8500 has a CW narrow mode which pro-
vides better S/N (signal-to-noise) and also rejects
nearby interference. The CW narrow lter is helpful
when receiving CW and radio-teletype signals.
q
Remove the top cover.
w
Connect the FL-52A as shown in the diagram at
right.
• Make sure it is connected in the proper orientation.
• Attached nuts on the FL-52A are not necessary. If you
want to install the lter more securely, open the MAIN
unit, then use the nuts on the bottom of the MAIN unit.
e
Replace the top cover.
FL-52A
Under the top cover
Under the top cover
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...
Страница 79: ...SERVICE MANUAL ADDENDUM CONTENTS PARTS LIST 1 BOARD LAYOUTS 21 VOLTAGE DIAGRAM 23 Sep 2010...
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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...
Страница 261: ...7 2...
Страница 262: ...7 3...
Страница 265: ...SECTION 8 SEMICONDUCTOR INFRMATION 8 1...
Страница 266: ...8 2...
Страница 286: ...1 1 32 Kamiminami Hirano ku Osaka 547 0003 Japan S 14318XZ C1 2006 Icom Inc...