Service Profile

BeoSound 3200 :: Types 2681 - 2690

BeoSound 3200 technical introduction:

CD mechanism:
The visible CD player plays both 12 and 8 cm discs. The mechanism is a CD PRO II with CD10 single chip concept with Bitstream D/A converter.

- steps of 50 kHz and fine tuning in 12,5 kHz
- active multiplex filters in the stereo decoder gives optimal suppression of the 19 kHz pilot tone sub-carrier
- AM tuner is optimised for loop antennas. Long wires and active antennas may be used as an alternative
- new three step AGC is incorporated, so the large signal handling is improved
- RDS included as standard. RDS hardware and software have been improved, so it is possible to decode RDS at antenna level which is approximately 12 dB lower than the previous BC2300 solution
- the Tuner uses a new fast tuning method on FM. A scan through the FM band takes only 7 sec. (with no antenna signal), making it one of the fastest in the market. A scan in BC2300 or BeoSound Ouverture takes in comparison 28 seconds

Power supply:
- 5 Vac is used for two lamps on the front panel
- 5 V is used for several PCBs IR, Display, CD, P, Tuner etc.
- 10 V is used for CD servo & decoder

Magic door opening:
The 120 kHz double circuit contains an IR-receiver diode and an IR-transmitter diode for the optical feedback; a set for left-and right-hand side. Both systems (L & R) have to be active to open the glass doors

Item and type survey:

Mains Supply
Variant text
230 Vac
Europe FM-AM
230 Vac
England FM-AM
120 Vac
100 Vac
Japan FM-AM
240 Vac
Australia FM-AM
120 Vac
Taiwan FM-AM
220 Vac
Korea FM-AM
230 Vac
Latin America FM-AM

HDR-A module:
The CD memory function is based on a Hard Disc Recorder - Audio module which needs to be replaced as a complete module exchange chassis part when servicing. It is placed where the CC tape deck is placed in a BeoSound Ouverture. Access is possible by removing the front keyboard panel.

When a dealer experiences problems with the CD memory function, it is possible to test both the reproduced SP/DIF digital signal (from the CD player) and the copied signal (from the CD memory) by using the CD playability test disc SBC444A track 10, 17 and 19. These tracks must be reproduced without problems or sound dropouts from both the CD player and the CD memory function when testing the recording.
By listening to SBC444A (track 10, 17 and 19) during copying, the CD player is tested.
By listening to the copy of the three tracks, the CD memory function is tested. If it is concluded that there is a fault on the HDR-A module, it must be replaced.

It is a good idea to get the customer's Compact Disc with the repair, if it seems to a problem with the CD memory function as the cause very well may be Compact Disc related. Especially, you can expect problems from CD-R/RWs as you do not know the quality of the source material, the burner or the CD-R/RW disc. Also copy-protected discs (typically without Compact Disc logo on them) have been produced out of Compact Disc standard and may give problems.

The CD memory function on the HDR-A module cannot be blamed for bad quality from the source material. Therefore, it is recommended to use the SBC444A test disc at the dealer before the type of repair is chosen.
It will be possible to copy music data from a working HDR-A to a service HDR-A unit by using the HDR-A service kit. Note that faults on the original material will also be copied.
Recommend the customer to delete faulty tracks and try again after checking the original CD sound - if you hear a fault when playing the CD, this fault will of course be copied to the hard disc.

Service will normally be possible to complete within 30 minutes. It may take up to one hour to copy a full Hard Disc.

Service Programmes:
Test Mode:
All codes are described in the service manual.
In terms of service, no "manual" adjustment is necessary - all hardware adjustments can be accessed via Testmode
Bang & Olufsen expects this fault detection programme will be of great help in connection with servicing the product

It is possible to use the Programmer for programming radio naming/frequencies. When using the Programmer, it is no longer necessary to type in the type no. - just press RADIO - antenna setup no. (1 to 8) - and PROGR.

Product Cover:
A Cover to the product is available, the ordering number is: 3657455

PIN code protection
General description:
The PIN code protection is a 4-digit code, of the user's own choice, which must be entered if the product has been disconnected from the mains for between 15-30 min. Until 15 March 2003 the PIN code protection is deactivated from the factory. From this date an ever-increasing number of products will be equipped with the PIN code activated at the factory. The activated protection is introduced gradually so there will be a period of six months where you can tell from the packaging if the protection has been activated. The packaging will be labelled with the text: "PIN code protected".

Before the product is handed in to service it is recommended that the customer deactivates the PIN code protection.

Service code
If the PIN code is activated and the product is in a service situation, there is a possibility of 12 hours service by entering a 5 digit Service code which is 11111. This gives 12 hours of full functionality to service the product and make module changes without naming/registering the exchanged modules to the Customer's product. The 12 hours are only running when the product is connected to mains.
If the customer PIN code or Master code is entered the exchanged modules will be named/registered to the product. Registration of the modules cannot be changed.
The service code must be entered When a source is selected and the product asks for the PIN code "PIN ____" press down the << (rewind) button for three seconds. The display now writes "PIN *****", and the Service code 11111 can be entered.

Master code
If the PIN code has been forgotten (5 tries every 3 hour with mains connected), the only way to unlock the product again is by entering the 5-digit Master code. The Master code can be ordered at a Bang & Olufsen dealer. Once the code is keyed in, the product is operational again and the PIN code system is deactivated.
When a source is selected and the product asks for the PIN code "PIN ____", press down << (rewind) for three seconds and the display asks for 5 digits instead of 4 : "PIN *****" ; enter the 5 digit Master code.

When the serial number has been transferred to the micro-processor it can only be used for this specific product; it must go back to Bang & Olufsen's module repair department as an exchange module to be erased again.
If the product functions are OK, the PIN code theft protection is also OK; there is no need for testing the functionality of the PIN code protection.
When the product is connected to mains, wait 20-30 seconds before operating. All addresses in ML have to be updated after disconnecting mains voltage.




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