[TechAssist] Re: Sanyo AVM3680G
- From: "Tel-Tek Electronics" <teltek2@xxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Tue, 21 May 2002 11:44:30 -0400
By the sounds of it, hum (60cycle) would indicate problems in your Primary
power supply, leaky diodes, bad filter, etc. Even defective degaussing
circuit.If you have B+ fuse, remove, and scope primary supply for 60 cycle
ripple.
-Ed-
Tel-Tek Electronics
Midland, Ont. Canada.
teltek2@xxxxxxxxxxxx
"Quality will be remembered, long after Price is forgotten"
----- Original Message -----
From: "LeRoy Westlund" <llw@xxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Tuesday, May 21, 2002 11:15 AM
Subject: [TechAssist] Re: Sanyo AVM3680G
>
> You would have to ring it, to check the yoke.
> I don't have a print, so I don't know about the ohms. It would be a low
> reading on the Horz. windings.
> You might try unpluggung it, to see if the hum goes away, but I wouldn't
run
> it too long, in that condition.
>
> Good luck,
> LLW
>
> LeRoy Westlund
> Westlund TV & Electronics " I've enjoyed
> 93 North Main as much of this,
> Centerfield, UT 84622-0087 as I can stand "
> Ph./Fax 435-528-3822
> mailto:LLW@xxxxxxxxxx
>
> -----Original Message-----
> From: mark brock <brock@xxxxxxx>
> To: techassist@xxxxxxxxxxxxx <techassist@xxxxxxxxxxxxx>
> Date: Tuesday, May 21, 2002 7:32 AM
> Subject: [TechAssist] Re: Sanyo AVM3680G
>
>
> >
> > Leroy, I'm headin over there this aft. how do I check the yoke,
> >any idea on ohms?
> > I don't think its that, or at least there must be something else as
> >the hum I hear at turn on is through the speakers, I was going to un
> >solder the audio ic and see what happens because I know some sets will go
> to
> >shutdown if it shorts, but thought I better check before I cause more
> >damage.
> >brock
> >Brock Electronics
> >R.R.4 box 237
> >Independence Ks. 67301
> >620-331-0235
> >fax 331-7191
> >
> >brock@xxxxxxx
> >mailto:brock@xxxxxxx
> >
> >-----Original Message-----
> >From: LeRoy Westlund <llw@xxxxxxxxxx>
> >To: techassist@xxxxxxxxxxxxx <techassist@xxxxxxxxxxxxx>
> >Date: Monday, May 20, 2002 10:22 PM
> >Subject: [TechAssist] Re: Sanyo AVM3680G
> >
> >
> >>
> >>Mark,
> >>There are a lot of yokes shorting out on the 25,27, & 32 inch Sanyo TVs.
> >>Maybe you should check the yoke on this 36" puppy.
> >>If yoke is bad, also check the small ohmage resistor R007 (3.7 or 5.6
ohm)
> >>off the reg. IC. They also open up, and cause poor Volt reg. problems.
> >>
> >>HTH
> >>LLW
> >>
> >>LeRoy Westlund
> >>Westlund TV & Electronics " I've enjoyed
> >>93 North Main as much of this,
> >>Centerfield, UT 84622-0087 as I can stand "
> >>Ph./Fax 435-528-3822
> >>mailto:LLW@xxxxxxxxxx
> >>
> >>-----Original Message-----
> >>From: mark brock <brock@xxxxxxx>
> >>To: techassist@xxxxxxxxxxxxx <techassist@xxxxxxxxxxxxx>
> >>Date: Monday, May 20, 2002 8:26 PM
> >>Subject: [TechAssist] Sanyo AVM3680G
> >>
> >>
> >>>
> >>>Chassis G5D3680G2, dead, customer heard a pop then it quit, I
can't
> >>see
> >>>any bad caps or carbon burns on any chip, not sure where the pop came
> >>from,
> >>>There is a loud hum ( like 60 hz ) out of the speakers when first
turned
> >>on
> >>>then shuts down immediately, I've no print, not sure where the
always
> >5v
> >>>is measured, and pretty much lost on this 36" brute, any advise, have
> to
> >>>fix it there this week or lug it home, would rather not have to hire
> help
> >>>to move it . The filter cap is ok, ( I changed it anyway ) will a
> >bad
> >>>audio ic shut these models down ?
> >>>
> >>>brock
> >>>Brock Electronics
> >>>R.R.4 box 237
> >>>Independence Ks. 67301
> >>>620-331-0235
> >>>fax 331-7191
> >>>
> >>>brock@xxxxxxx
> >>>mailto:brock@xxxxxxx
> >>>
> >>>
> >>>
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