[ICOM] IC-7700

[Simon Watt-Wyness]

Hi Bob,

I think I would be plugging in a 6.5 mm headphone plug without anything attached and see if there is any DC present on between ground and the two active pins. If there's DC it could mean a shorted coupling cap from the amplifier. Mind you without looking at the circuit it could be a bridged type amp bust suspect not as the headphone socket is grounded.

Cheers,

Simon
ZL1SWW


-----Original Message-----
From: icom-bounces at mailman.qth.net [mailto:icom-bounces at mailman.qth.net] On Behalf Of Robert Sullivan
Sent: Sunday, 1 March 2020 11:58 AM
To: icom at mailman.qth.net
Subject: [ICOM] IC-7700

My IC-7700 operates perfectly except for one irritating problem; At turn-on
there is a loud 'pop' in the attached speaker (even with headphones plugged
in). It's there even with volume control full CCW.

Is this a known issue? Solutions?

Thanks!

73, Bob
WØYVA
Personal site: isquare.com
----
Your Moderator: Dick Flanagan K7VC: icom-owner at mailman.qth.net
Icom Users Net: Sundays, 1700Z, 14.316 MHz
Icom FAQ: http://www.qsl.net/icom/
To support QSL/QTH.net: http://www.qsl.net/donate.html

===
www.eagle.co.nz 

This email is confidential and may be legally privileged.
If received in error please destroy and immediately notify us.