Yamaha RX-Z11 Service Manual page 62

RX-Z11/DSP-Z11
ISO Tone/32k
The ISO tone (32kHz) is output.
XM/DT Bus Power: OFF
The power of XM module is turned off.
13. HD RADIO TEST (U model)
CPU version
The firmware version is displayed.
DIR version
The DIR version is displayed.
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12.XM TEST
ISO Tone/32
12.XM TEST
Bus Power:OFF
13.HD Radio
CPU VER:ta07.
13.HD Radio
D:DIR-352-V016