Yamaha HTR-5280 - AV Receiver - 5.1 Channel, Service Manual

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RX-V800/RX-V800RDS/HTR-5280
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YS1-3 [Remote control code: - ] Indicates device status information of YSS928 (IC501). * The numeric value in the figure is
an example for reference.
Byte No. Function
1 YSS MUTE Reg
2 YSS MODE Reg
3 YSS IPORT BIT 7-0
4 YSS IPORT BIT 14-8
5 YSS OPORT
Byte No. Function
1 IEC 1937 Preamble Pc
2 AC-3 Data Stream No
3 AC-3D Decode Status
4 YSS ZERO Reg
5 MIREG
Byte No. Function
1 DIR Status
2 DIR fs
3 DIR fs count
4 YSS ZEROBF
CS1-5 [Remote control code: -]: Indicates channel status information of the input signal (IEC60958).
BI1-4 [Remote control code: -]: Indicates information of the bit stream included in the DOLBY DIGITAL signal.
BS1-4 [Remote control code: -]: Indicates information of the bit stream included in the dts signal.
Display Description
WAIT Bus being checked.
NoEr No error detected.
DATA Data bus shorted or open.
ADDR Address bus shorted or open.
12. DSP RAM CHECK
This menu is used to self-diagnose whether or not bus connection of YSS928 (IC501) and the external RAM (IC502) is made
properly.
During signal processing, the status before execution of this menu is maintained.
Bus Check [Remote control code: 7A-0A (CD SKIP+)]
The address bus and the data bus are checked and the connection condition is
displayed.
When no error is detected, "NoEr" appears on display.