Reset On Sequence - Pioneer BDP-320 Service Manual

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5.3 RESET ON SEQUENCE

QQ
3 7 63 1515 0
A
[On start-up]
1. Receiving Power ON key, sub-microcomputer turns Power_ON signal to "H".
2. Receiving Power ON signal, power turns each SW power to "ON", and Reset 5# "L" turn to "H".
3. 1.1 V turns ON.
4. Sub-microcomputer is (after 400 ms) to Reset_SKY#, Reset 2#, Reset 3#, Reset 4# "L" turn to "H",
and Reset 5# "H" turn to "L".
5. Sub-microcomputer is (after 800 ms) to Reset_FL "L" turn to "H".
Power_ON
B
1.1V
RESET_SKY#,2#,3#,4#
RESET5#
RESET_FL
[At normal end]
C
1. Sub-microcomputer detects the pushing of Power key, then notifies PowerOFF to R8A34019BG by I C.
2. Receiving PowerOFF notification, R8A34019BG conducts end processing.
3. R8A34019BG instructs PowerOFF to sub-microcomputer by I C.
4. Sub-microcomputer turns Reset_SKY#, Reset 2#, Reset 3#, Reset 4#, Reset_FL, to "L", and Reset 5# "L" turn to "H".
TE
After 1 sec, PowerON signal to "L".
L 13942296513
5. After 500 ms, Reset 5# "H" turn to "L".
RESET_SKY#,2#3#,
4#,FL
D RESET5#
Power_ON
[Power abnormality]
*Reset operation in the case of 1.1 V drop.
Determine if ResetG becomes "L", then turn Reset_SKY#, Reset 2#, Reset 3#, Reset 4#, Reset_FL, to "L",
and Reset 5# "L" turn to "H".
E
[At abnormal end]
1. ACOFF
2. By turning 1.1 V to OFF, ResetG# turns to "L" by ResetIC.
Power_ON
1.1 V
www
Reset
(IC4201 OUT)
Reset_SKY#,2#,3#,
F
4#,5#,FL
24
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2
PON key
1 sec
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2
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3
8
400 ms
400 ms
800 ms
2
Q Q
3 6 7 1 3
500 ms
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BDP-320
3
4
2 9 9 4 2 8
2
1 5 0 5 8 2 9 9 4
m
co
4
9 9
2 8 9 9