Mitsubishi Electric PD-5010 Service Manual page 23

(3) Picture errors
Display a picture in error mode. However, the video signal
level shall be maintained above 0.7Vp-p.
Are pulses of 3Vp-p available at Pins 38, 39, and
40 of the AD connector?
Are the horizontal/vertical sync signals of 3Vp-p
available at Pins 27/28 of IC8701, and a clock
signal at Pin 31?
50KHz 60Hz
Is a picture error caused by PC input?
Are the signals below available at Pins 14 to 17,
19, 98, 96, and 95 of the AM connector and at
Pin 3 (IP8001) in the DSP PWB?
14
15
16
17
19
98
96
H
95
V
3
YES
YES
40MHz
YES
NO
5Vp-p
5Vp-p
3Vp-p
5Vdc
10MHz, 3Vp-p
27~37NHz* 3Vp-p
15~45KHz * 3Vp-p
50~60Hz * 3Vp-p
5Vdc
NO
NO
YES
Are the specified voltages available at the
connectors below?
(Power source check)
NO
Connector name
PN
PM
YES
The MAIN PWB
is out of order.
* Changed according to the input signal.
YES
(3)-1 (P13)
12
0.7Vp-p or above
Pin No. Voltage
1 3.3Vdc
1 7Vdc
7 5Vdc
9 14Vdc
NO
The POWER unit
is out of order.