218
MEP-7000
1
2
3
4
A
B
C
D
E
F
1
2
3
4
101
102
103
NORTH CPU RESET
Reset of the
N
orth CPU (IC601) is performed by V+BUS5D but not by V+BF3R3D.
a-b:
8
0ms
CH1
CH2
CH3
CH4
Start of 3.3-V power
Start of 3.3-V power is performed in steps.
V+BF3R3D power is used by the
N
orth CPU, SDRAM, USB controller, etc.
V+3R3D power is used by the CE
N
TER PA
N
EL microcomputer, video encoder, etc.
a-b:
8
0ms
a-c
:
390ms
CH1
CH2
CH3
CH4
Start of LCD power
a-b: 390
CH1
CH2
CH3
CH4
5.0V/div
5.0V/div
5.0V/div
5.0V/div
100ms/div
2.0V/div
2.0V/div
2.0V/div
2.0V/div
5.0V/div
100ms/div
20ms/div
5.0V/div
5.0V/div
5.0V/div
CH1
V+BUS5 D
CH2
V+BF3R3D
CH3
RST#
CH4
BUSCLK
a
b
CH1
V+BF3R3D
CH2
RST#
CH3
PCO
N
T
CH4
V+3R3D
a
b
c
CH1
V+BUS5D
CH2
V+2R5V
CH3
PCO
N
T
CH4
V+S
W
5D
a
b
N
orth CPU Reset clear
Power on
Power on
N
orth CPU Reset clear
N
o.(SCH/PCB)
CH1 V+BUS5D
101
C600
CH2 V+BF3R3D
102
R600
CH3 RST#
103
TP
CH4 BUSCLK
104
TP
N
o.(SCH/PCB)
CH1 V+BF3R3D
102
R600
CH2 RST#
103
TP
CH3 P.CO
N
T 105
R
8
24
CH4 V+3R3D
106
C
8
29
N
o.(SCH/PCB)
CH1 V+BUS5D
101
C600
CH2 V+2R5V
107
R
8
64
CH3 P.CO
N
T 105
R
8
24
CH4 V+S
W
5D 10
8
Q
8
11-1
[7] NMAIN: START OF THE MAIN POWER
Measurement conditions
At the time of power on
Voltage
Time
Signal
N
ame
Measurement Point
Measurement conditions
At the time of power on
Voltage
Time
Signal
N
ame
Measurement Point
Measurement conditions
At the time of power on
Voltage
Time
Signal
N
ame
Measurement Point