[TechAssist] Re: Zenith, SMS-2549S, Service Mode Access

  • From: Bruce Youmans <youmans@xxxxxxxx>
  • To: techassist@xxxxxxxxxxxxx
  • Date: Sat, 6 Nov 2004 12:44:44 -0700

Bob,

Thank you for the info. You and some others brought this to my 
attention that the adjustments are on the circuit board and not 
through a service menu.

The customer brought this set in as I was locking the door to go out 
of town for a couple of days. Only needed a couple of simple 
adjustments. I jumped the gun assuming it was through service menu 
adjustments. Next time I will check inside first. Guess I was in too 
big of a hurry to get out of town..
Thanks.

Bruce
Bruce's TV Service
Sierra Vista, Arizona


>Bruce,
>          The tracking adjustments are on the CRT board...The main module is
>a 9-1458.. C12 chassis... The vert adjust is  R2106.. This set is not a
>typical +130V supply... The power supply uses  a Buck Regulator and runs at
>+100V @ + of CX3414...The B+ adjust is RX3412... This power supply can cause
>very strange vert symptoms like poor height and vert foldover..
>Hope this helps..
>
>Bob,
>
>Bobs TV   Worcester, ma
>
>woodman1@xxxxxxxx
>
>Main  508-853-1482
>Fax    508-853-1480
>----- Original Message -----
>From: "Bruce Youmans" <youmans@xxxxxxxx>
>To: <techassist@xxxxxxxxxxxxx>
>Sent: Tuesday, November 02, 2004 7:59 PM
>Subject: [TechAssist] Zenith, SMS-2549S, Service Mode Access
>
>
>>  Manufacturer: Zenith
>>  Model: SMS-2549S
>>
>>  Need to get into the service menu for vertical and tracking adjustments.
>>
>>  The usual menu,9-8-7-6-enter and
>>  menu+vol up+chan up
>>
>>  do not seem to work.
>>
>>  Does this set use a different access code? or what could I be doing
>>  wrong? Have have accessed many other Zenith models in the past with
>>  no problem.
>>
>>  TIA
>>
>>  Bruce
>>  Bruce's TV Service
>>  Sierra Vista, Arizona
>>
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