96
XR-MR7
7.1.2 SEQUNCE AFTER THE POWER ON
Standby states
P57 PBMUTE : "L"
"H" = Hi "L " = Low
PE5113 ( CD-R Control IC )
Microcomputer
No
Yes
P63 xPFAIL
P78 XRST : "H"
System bus communication (
∗
1)
Transfer the system POWER ON.
Note 1 : IC No. or P
**
without name indicate the pin No.
of microcomputer.
Note ;
∗
1 : System bus communication
P65 SCLK
P43 SDATAIN
P42 SDATAOUT
P41 SREQ
∗
2 : Starts the FL communication
P17 CDRDISPDATA
P18 CDRDISPCLK
P19 CDRDISPREQ
∗
3 : MECAH Control decoder IC
P11 DATA IN
P12 DATA OUT
P13 CLOCK
P3 XFUSE
P64 MREQ
P46 MACK
CD-R does not operate
for an abnormal part CD-R
POWER ON
PB Mute ON.
DISPLA communication beginning
with system microcomputer
DISC distnction
beginning.
MECAH control IC starts
Is XPFAIL at "H" level ?
PB MUTE release after System control IC
begins with MECAH control IC two way
Displays "NO DISC"
at the CDR function.
Displays at "TOTAL" time
at the CDR function.
It is.
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