[Icom] Re:Mic Gain Problems with 706MKII

Mon, 30 Dec 2002 01:54:42 -0500

The resistor in question (R236, 27K) is on the Main board near IC22(speech
amp/vox amp), and is in parallel with and directly adjacent to capacitor
C210 (470p). These are SURFACE MOUNT type parts. I hope this helps.

William J. Wickstrom, Chief Engineer,
Surge Performance Sound.
[email protected] <mailto:[email protected]>

William J. Wickstrom, W1IK, NNN0AHC
USECA Morse Instruction Coordinator
[email protected] <mailto:[email protected]> ; [email protected] <mailto:[email protected]>

William J. (Jim) Wickstrom, W1IK
Vice-President,
Utica/Shelby Emergency Communications Association (USECA)
[email protected] <mailto:[email protected]>

  _____

Message: 5
Date: Fri, 27 Dec 2002 20:47:49 -0800 (PST)
From: sasi nayar <[email protected]>
To: [email protected]
Subject: [Icom] Re:Mic Gain Problems with 706MKII
Reply-To: [email protected]

Clete,

>a Tech Note to change a resistor in the 706, but I
>couldn't find it, even with the schematic diagram.

If you ever happen to locate this resistor kindly let
us know. That would be really useful.

I swapped my HS706 with the stock mic (the rubber ring
removed)last night and managed to work some Dx. All OK
minus the punch that I would have got out of my 706.
Goes to say that removing the rubber disc helps a bit.

Seasons greetings to all on this reflector
73
Sasi
9V1SM

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