About 6 months ago, my M100's LCD contrast was very weak and impossible to use.
Following your advice, I changed C82 and C85 . That gave me a solid
-5V for VEE and the contrast was back to normal.
My problem is that 6 months later, I can still read the screen
(mostly) but my VEE is now back to -3V
of the PCB and/or
the flux they applied to the bottom of the PCB with a butter knife, turning
conductive.
Jeff Birt
-Original Message-
From: M100 On Behalf Of Eric LK
Sent: Sunday, March 21, 2021 2:05 AM
To: m100@lists.bitchin100.com
Subject: [M100] Need help fixing VEE on M100
Abou
"Jeffrey Birt" wrote:
> On the M100s I have found most of the caps tend to leak (and cause PCB
> damage).
> While I am NOT a proponent of 'recapping' every piece of vintage gear out
> there on
> the M100 I do a full recap on every one of them.
I didn't recapped this unit because the seller I pu
Le lun. 22 mars 2021 à 19:05, Eric LK a écrit :
>
> I didn't recapped this unit because the seller I purchased it from
> told me he did it a couple of years ago, but I think I'll just follow
> your advice on this (also, I'm not sure he did clean the flux).
>
> I already have the caps so I guess I
nd add any
needed bodge wires.
This is not hard work but it sure is time consuming.
Jeff Birt
-Original Message-
From: M100 On Behalf Of Eric LK
Sent: Sunday, April 11, 2021 7:17 AM
To: m100@lists.bitchin100.com
Subject: Re: [M100] Need help fixing VEE on M100
Le lun. 22 mars 2021 à 1
"Jeffrey Birt" wrote:
> Welcome to the fun world of leaking electrolytic capacitors. Trace damage
> like this is
> very common and if someone replaces the capacitors without properly
> mitigating the
> damage the corrosion will continue to spread and get worse. 'Half-way'
> repairs cause
> as m
--Original Message-
From: M100 On Behalf Of Eric LK
Sent: Wednesday, April 14, 2021 8:36 AM
To: m100@lists.bitchin100.com
Subject: Re: [M100] Need help fixing VEE on M100
"Jeffrey Birt" wrote:
> Welcome to the fun world of leaking electrolytic capacitors. Trace
> damage like
On Wed, Apr 14, 2021 at 9:57 AM Jeffrey Birt wrote:
>
> I bought a jar of this more than a year ago and have found it works very
> well. I prefer paste flux to the 'no clean' type as the fumes are far less
> irritating.
>
> https://www.jameco.com/z/RSF-R80-2-Caig-Labs-Deoxit-DeoxIT-Rosin-Flux-So
//www.jameco.com/z/RSF-R80-2-Caig-Labs-Deoxit-DeoxIT-Rosin-Flux-Soldering-Paste-56-Gram-Jar_2094258.html
>
> Jeff
>
> -Original Message-
> From: M100 On Behalf Of Eric LK
> Sent: Wednesday, April 14, 2021 8:36 AM
> To: m100@lists.bitchin100.com
> Subject: Re: [