Bang & Olufsen BeoCenter 1, Repair Manual

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Power on reset failure 1 (POR1)
Reset or update failure of 1IC100 (TDA9321H module 999) during start up.
Power on reset failure 2 (POR2
Reset or update failure of 1IC350 (TDA9330H module 999) during start up.
Power down detected failure (PDD)
Power down failure detected on 1IC300 (TDA9178 module 999).
Address confi guration impossible (CI)
Error during address confi guration. No address has been allocated because an
excessive number of units has been connected to the Master Link.
- Disconnect all units from the link and reconnect them again one at a time.
ML data pulled down (TD)
The link is pulled down (Low). This error can occur in the form of a physical short
circuit in the link. In the link drivers, or in the ML master/source circuit module 51
in the TV.
ML data pulled up (TU)
The link is pulled up (High). This error can occur in the form of a physical short
circuit in the link. In the link drivers, or in the ML master/source circuit module 51
in the TV.
Transmission impossible (TI)
It is not possible to send data to pin 8 on the V.TAPE or AV socket, probably because
of noise.
Data link tied down (TD)
The data link connection to pin 8 on the V.TAPE or AV socket is short circuited to
ground.
Calibration error too few positions (ST-01)
Not enough positions are read during Stand calibration. The Stand may be blocked.
Calibration error too many positions (ST-02)
Too many positions are read during Stand calibration.
Calibration error EEPROM (ST-03)
Failure when the Stand offset should be stored in the EEPROM.
Calibration error transducer (ST-04)
An invalid position is read from the transducer.
Calibration error position (ST-05)
Several readings from the transducer with the Stand in the same position.
IC INFORMATION
Shows the version numbers for the IC’s mentioned.
MSP = 1IC550 (MSP3410D), HIP = 1IC100 (TDA9321H)
PICTP = 1IC300 (TDA9178), HOP = 1IC350 (TDA9330H)
SERVICE COUNTERS
AUDIO = audio mode, the EHT voltage is off.
EXT.AUDIO = extended audio mode, the EHT voltage is off but there is supply
voltage on all other TV circuits.
5.8 Service Mode, English