Tuner Test Modes - Bang & Olufsen BeoSound 1 2581 Guia De Reparación Para El Usuario

Tuner test modes

TM 00: Select FM frequency
TM 02: Manual offset FM
TM 03: Get offset FM
TM 04: Get variant
TM 07: Store variant
Beo4 commands; fi nd SHIFT in the "list" and then press following sequence:
9 0 2 5 8
All tuner test modes demands that tuner is selected after those Beo4 commands.
If the keyboard is defect it is possible to select an FM frequency in this TM for
repair purpose.
Key in the frequency-digits and end TM by pressing
Manual FM offset adjustment. This test mode demands that an FM signal is
available. The frequency is determined by the user. Key-in a frequency. The tuner
search for this frequency and the offset will be calculated and stored in NVRAM.
The display shows "NoEr".
If failure the display shows "Err".
Get FM offset. The value X is in steps of 12.5kHz.
If the offset-adjustment is needed the display shows "Err".
If the result of the offset-adjustment is positive the display shows "0 X"
If the result of the offset-adjustment is negative the display shows "0 -X"
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Press or STORE to end TM.
Get tuner variant number.
(Variant is only registered if the product have been in st.by mode)
000 = Error variant
001 = EU variant (FM)
002 = GB variant
003 = USA variant
004 = Japan variant
005 = AUS variant
007 = TWN variant
008 = KOR variant
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Press or STORE to end TM.
This test mode stores information necessary for the functionality of different tuner
variants.
To registered the variant change in TM04 the product must be in st.by mode fi rst.
Tuner variant setup:
If from EU or AUS to US or TWN:
Key in the 3 digits indicating the choice.
No. 0: 003 = variant US. (007 if TWN).
No. 1: 000
No. 2: 175 = FM start (in step of 500 kHz).
No. 3: 216 = FM stop (in step of 500 kHz).
No. 4: 075 = Deemphas in µs.
No. 5: 000
No. 6: 000
No. 7: 000
No. 8: 000
No. 9: 000
Adjustments, English
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