Results 1 to 1 of 1
  • Topic Tools
  • Display
  • Bookmark and Share
  1. #1
    Bronze Member
    Points: 1,004, Level: 8
    Level completed: 27%, Points required for next Level: 146
    Overall activity: 0%
    Achievements:
    New Achievement!1 year registered1000 Experience Points

    Join Date
    Jun 2013
    Posts
    12
    Points
    1,004
    Level
    8
    Thanks
    0
    Thanked 0 Times in 0 Posts
    Rep Power
    0

    MCM250 /22: a very technical tuner question

    Is there any way to enable the "extended" FM-OIRT band (65.81MHz - 74MHz)?
    I found a service manual for this audio system. I was able to switch the tuner board from "EUR" (europe) mode to "EAS" (eastern europe) mode by soldering a BC847C transistor and a 100K resistor (see the attached screenshot from the service manual). The tuner is now detected as "EAS" (in the service test menu).

    However, the FM-OIRT band is still not available. I did some digging and found something interesting in the service manual of another Philips system (MCM9) with identical ECO6 tuner board:

    "By holding the ECO and TUNER buttons depressed while switching on the Mains supply,
    one of the undermentioned features will be activated:
    - the tuning grid frequency is toggled between 9kHz and 10kHz for the Oversea (/21) version.
    - the extended FM1 (65.81MHz - 74MHz) is toggled on and off for East Eur. (/34) version."


    I tried different button combinations but nothing seem to be working. Can anyone with knowledge help me with this?
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	capture_001_11042014_214415.jpg 
Views:	41 
Size:	20.6 KB 
ID:	2495  

Similar Topics

  1. DVB-t tuner
    By gerryvanbergen in forum TV: Installation
    Replies: 1
    Last Post: 02-20-2014, 02:16 PM
  2. MCi500 Where is the recording from FM-Tuner?
    By willem.deboer in forum Sound: Streamium MCi series (MCi900| Mci8080| MCi730| MCi500| MCi298)
    Replies: 2
    Last Post: 12-26-2012, 08:00 PM
  3. Replies: 2
    Last Post: 09-11-2012, 06:54 PM
  4. DVB-T Tuner Frozen
    By Major47 in forum TV: Other
    Replies: 0
    Last Post: 06-07-2012, 09:52 PM
  5. USB rec. with separate DVB-S tuner?
    By Buggebubben in forum TV: USB-recording
    Replies: 1
    Last Post: 11-07-2011, 11:33 AM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •