Pioneer MEP-7000 Service Manual page 224

1
118
Rise timing of clock, reset, and communication start of the LCD
A
Board to be measured · · ·
Signal Name
No.(SCH/PCB)
CH1 V+2R5V 129
CH2 V+5D 130
CH3 TFT_CLK9M 131
Time
5ms/div
B
Voltage
CH1 2.0V/div
CH2 2.0V/div
CH3 5.0V/div
Measurement conditions
At the time of power on
119
Rise timing of clock, reset, and communication start of the OEL
C
Board to be measured · · ·
Signal Name No.(SCH/PCB)
CH1 V+5D 130
CH2 V+14D 190
CH3 V+8R5D 191
CH4 OEL_RST# 133
Time
200ms/div
a-b: 1.04s
Voltage
CH1 5.0V/div
D
CH2 10.0V/div
CH3
5.0V/div
CH4
5.0V/div
Measurement conditions
At the time of power on
E
F
224
1
2
NMAIN ASSY
Measurement Point
TP
D815(Cathode)
R711
TFT_CLK9M
NMAIN ASSY & OELB ASSY
Measurement Point
D815(Cathode)
TP
TP
TP
OEL_RST#
2
3
CH1
V+2R5D
CH2
V+5D
CH3
CH1
V+5D
CH2
V+14D
a
CH3
V+8R5D
CH4
Power on
MEP-7000
3
4
b
Reset clear
4