Bang & Olufsen BeoCenter 1, Repair Manual

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ML error codes are for detection of errors in the Master Link system.
. . . . No error registered
CI Address confi guration impossible
TD ML data pulled down
TU ML data pulled up
?? Other undefi nable error possibilities
NH No Hardware. There is no Master Link PCB in the TV
AVL error codes from the V.TAPE and AV sockets
. . . . No error registered
TI Transmission impossible
TD Data link tied down
Motorized stand error codes
ST-01 Calibration error too few positions
ST-02 Calibration error too many positions
ST-03 Calibration error EEPROM
ST-04 Calibration error transducer
ST-05 Calibration error position
After repair of an error that has triggered the display of an error code, the error code
has to be deleted. This is done by pressing GO in the MONITOR INFORMATION menu.
IIC bus error
An IIC bus error means that the communication on the bus fails when the
microcomputer tries to communicate with the address in question.
In most cases this means that the addressed IC is defective but the defect could
also be in one of the components surrounding the IC or in other components on
the bus. Adresses in connection with IIC bus errors:
IC Function On modes Adr Clock BUS
1IC100 TDA9321H Colour decoder & IF (HIP) AV 8A 100 kHz IIC-2A
1TU1 CTF5510 TV tuner V C0 100 kHz IIC-2A
1IC200 SDA6000 M2 Processor AV 22 400 kHz IIC-2D
63IC1 TDA8722M Modulator AV C8 100 kHz IIC-2A
64IC2 TDA7315 Power Link AV 80 100 kHz IIC-2B
6IC2 H8/3216 IOP Main processor SAV 60 400 kHz IIC-2D
32IC601 H8/3214 Digital Sound AC3 AV 84 100 kHz IIC1
1IC550 MSP3410D Sound processor AV 80 100 kHz IIC-2C
1IC350 TDA9330H Video processor (HOP) V 8C 100 kHz IIC-3_2
1IC300 TDA9178 CTI V 40 400 kHz IIC-3_2
1IC49 PCF8563 Real-time clock S A2 100 kHz IIC1
10IC306 83C652 FM tuner FEP A 66 100 kHz IIC1
10IC407 TDA7437 Sound processor A 88 100 kHz IIC1
72IC400 H8/3214 DVD FEP AV 6C 100 kHz IIC-2C
On modes:
S - Standby mode
A - Audio mode
V - Video mode
Data failure (DF)
If an error occurs in the EEPROM (6IC6) that prevents output of geometry data to
the TV set, the microcomputer will replace the missing data with default data
stored in the EPROM (6IC3) module 999.
Service Mode, English 5.7