Yamaha RX-Z11 Service Manual page 69

18. THERMAL HIST.
The history of thermal protection function is displayed.
After selecting the sub-menu, press the "STRAIGHT"
key, and the history will be erased.
THM :
19. DSP P.C.B. CHECK
Whether the bus of DSP P.C.B. is connected properly
or not is self-diagnosed.
ALL Check
CPU SDRAM BUS
SDRAM (IC703) data bus check is executed.
CPU NPGA1 BUS
NPGA1 (IC743) data bus check is executed.
DSP MEMORY BUS
DSP (#1, #2, #3 and #4) data bus check is executed.
OK : 0
NG : 1
18.THM HIST.
THM : NO
19.DSP CHECK
ALL:NG
OK: All OK
NG: One or more NG
19.DSP CHECK
BUS _ RAM:OK
19.DSP CHECK
BUS _ NPGA1:OK
19.DSP CHECK
DSP _ MEM:0000
Error detection of DSP#4 (IC514 and IC517) /
Error detection of DSP#3 (IC510 and IC511) /
Error detection of DSP#2 (IC506 and IC508) /
Error detection of DSP#1 (IC504 and IC505) /
RX-Z11/DSP-Z11
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