[TechAssist] Re: Emerson EWC1303, AFT lock problem

  • From: "Jerome Silverman" <greentron@xxxxxxx>
  • To: <techassist@xxxxxxxxxxxxx>
  • Date: Mon, 7 Jun 2004 13:52:06 -0400

You press a number button to select the adjustment mode and the channel
up/down button on the remote to change the data. There is no adjustment in
the adjustment modes that would affect the AFT, no tunable discriminator
coils. If anything were defective it would not ever lock a channel in. About
the only possibility is the 3.58 mhz crystal, X301. Its exact natural
frequency could affect the lock-in time.
Jerry Silverman
Greentron Inc
4 Newland Ave Greenville SC 29609
864 232 3889 Fax 271 2080
greentron@xxxxxxx
----- Original Message ----- 
From: "Jim Myers" <jr.myers@xxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Monday, June 07, 2004 10:06 AM
Subject: [TechAssist] Re: Emerson EWC1303, AFT lock problem


> Jerry, changing the customers remote to a service remote in this case
> worked out just fine, I can turn the set on from the front panel power
> button then press wake-up/sleep on the remote and the service menu pops
> up with the number "2" in each corner, "8b1-0.16 A2" centered in the top
> 1/2 of picture and "09" in left center of lower 1/2. My problem is
> figuring out how to navigate and make changes. Is there any possibility
> you can email, snailmail, upload, fax, or whatever, the adjustment
> section of the service manual? Maybe even the whole thing in case I need
> to trouble shoot instead of adjust?
> Thanks,
>
****************************************************************************
***************************************
> Since 1972
> Jim Myers
> Telrad Electronics
> Fort Wayne, Indiana
>
> Jerome Silverman wrote:
> > There is no adjustment shown in the service manual for a problem like
that,
> > nor are there any adjustable coils. If you expect to do much work on
those
> > it is better to just buy a remote, about $10, and convert it to a
service
> > remote. In the four years that they have used this system, we had to use
a
> > service remote about 4 times.
> > The first time we wanted to try to adjust the AFT and maybe the AGC to
see
> > if we could get rid of a hissing noise in the audio. The remote had
holes
> > for the jumper, but no traces to the holes. We tried all sorts of jumper
> > combos suggested by Funai T/A but none of them worked. Funai said they
would
> > send a new remote that never came. Next one we had, the jumper worked
fine
> > but it was a pain as we had to keep removing and installing the jumper
to
> > check the adjustments. Last one was a nightmare as we had to disconnect
a
> > micro pin and solder wires to narrow traces, again removing and
reinstalling
> > the jumpers. Good thing I did not follow the instructions that said to
cut
> > off pin 10 of the micro and then solder a wire from pin 10 to pin 17.
Not
> > only would there have been no pin 10 to solder to but pin 10 went
someplace
> > in the circuit and there would have been no way to restore that.
> > Jerry Silverman
> > Greentron Inc
> > 4 Newland Ave Greenville SC 29609
> > 864 232 3889 Fax 271 2080
> > greentron@xxxxxxx
> > ----- Original Message ----- 
> > From: "Jim Myers" <jr.myers@xxxxxxxxxxx>
> > To: <techassist@xxxxxxxxxxxxx>
> > Sent: Saturday, June 05, 2004 2:13 PM
> > Subject: [TechAssist] Re: Emerson EWC1303, AFT lock problem
> >
> >
> >
> >>Jeff, FYI, there is a place for a jumper in the original remote to make
> >>it a service remote. Haven't found any VVCO data to change yet though.
> >>Still trying to figure out the navigation.
> >>
> >
> >
****************************************************************************
> > ***************************************
> >
> >>Since 1972
> >>Jim Myers
> >>Telrad Electronics
> >>Fort Wayne, Indiana
> >>
> >>Intrepid Video Support wrote:
> >>
> >>>Sorry Jim...never needed to do this.
> >>>Jeff
> >>>--
> >>>Intrepid Video TV/VCR Repair
> >>>263 S Front St, Steelton PA 17113
> >>>717-939-7708; (F) 717-564-4952
> >>>www.intrepid-video.com  www.tech-repair.net
> >>>----- Original Message ----- 
> >>>From: "Jim Myers" <jr.myers@xxxxxxxxxxx>
> >>>To: <techassist@xxxxxxxxxxxxx>
> >>>Sent: Friday, June 04, 2004 10:34 AM
> >>>Subject: [TechAssist] Re: Emerson EWC1303, AFT lock problem
> >>>
> >>>
> >>>Thanks for the info Jeff, is it possible to move a jumper in the
> >>>original remote to make it a service remote or do I have to purchase a
> >>>service remote?
> >>>
> >
> >
****************************************************************************
> > ******************************
> >
> >>>*********
> >>>Since 1972
> >>>Jim Myers
> >>>Telrad Electronics
> >>>Fort Wayne, Indiana
> >>>
> >>>Intrepid Video Support wrote:
> >>>
> >>>
> >>>>Jim,
> >>>>>From Tech Repair CD:
> >>>>Emerson\EWC1902\Tuning looks like AFT way off\\\\Use Funai service
> >
> > remote ( one with jumper  in place
> >
> >>>>inside remote) pushed wake on remote to get into service mode* and
> >
> > changed the VVCO data from 2 to
> >
> >>>>21\\\\\\\\\
> >>>>Jeff
> >>>>--
> >>>>Intrepid Video TV/VCR Repair
> >>>>263 S Front St, Steelton PA 17113
> >>>>717-939-7708; (F) 717-564-4952
> >>>>www.intrepid-video.com  www.tech-repair.net
> >>>>----- Original Message ----- 
> >>>>From: "Jim Myers" <jr.myers@xxxxxxxxxxx>
> >>>>To: "TechAssist" <techassist@xxxxxxxxxxxxx>
> >>>>Sent: Thursday, June 03, 2004 4:32 PM
> >>>>Subject: [TechAssist] Emerson EWC1303, AFT lock problem
> >>>>
> >>>>
> >>>>When channel is changed it searches three or four times then locks,
> >>>>looks like AFT needs to be adjusted. Is there a service menu setting
for
> >>>>this? How to access and adjust? If not does anyone have a tip? We have
> >>>>replaced the tuner, no change.
> >>>>Thanks,
> >>>>
> >>>
> >>>
> >
****************************************************************************
> > ******************************
> >
> >>>>*********
> >>>>Since 1972
> >>>>Jim Myers
> >>>>Telrad Electronics
> >>>>Fort Wayne, Indiana
> >>>>
> >>
>
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