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Yamaha AVR-S80 Service Manual page 31

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MTT: Mute Trigger
(Not used in this model)
12. DSP RAM CHECK
This menu is used to self-diagnose whether or not the bus
connection for the YSS938 and the external RAM is made
properly.
During signal processing, the status before execution of
this menu is maintained.
The address bus and the data bus are checked and the
connection condition is displayed.
When no error is detected, "NoEr" appears on display.
YSS938 Bus Check
Display
Description
WAIT
Bus is being checked.
NoEr
No error detected.
DATA
Data bus shorted or open.
RSCS
/RAS or /CAS shorted, or open.
ADDR
Address bus shorted or open.
PLD/SRAM BUS CHECK
Display
Description
WAIT
Bus is being checked.
NoEr
No error detected.
EDxx
Data bus shorted or open. (xx: 00-07)
EAxx
Address bus shorted or open. (xx: 00-0E)
13. SOFT SW
This menu is used to confirm the function settings on
P.C.B..
SW MODE: Select PCB. Do not select SOFT.
MODEL SETTING: S80 only
Byte No.
Function
1
Mute condition
2
Factor of the last mute
3
Error count of YSS938-FSCNT
4
Mute count by YSS938-FSCNT
5
Error factor of down load of CS49329
AVR-S80/NX-SW80
31

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