![background image](http://html.mh-extra.com/html/nec/multisync-lcd1525va/multisync-lcd1525va_service-manual_1667357071.webp)
6-9
5. No OSM display
OK
NG
Check the output of 5Vp-p pulse from I402 pin 12, 13, 15, 17 when press PROCEED key.
Check the input of 5Vp-p pulse from I402 pin 4, 5, 6.
OK
NG
Check the output of 5Vp-p pulse from I208 pin 4, 5, 6.
OK
NG
Proceed "Checking the operation of CPU" section.
Failure point
1) Printed wire broke between I402 pin 5 and I208 pin 2.
2) Printed wire broke between I402 pin 6 and I208 pin 5.
3) Printed wire broke between I402 pin 4 and I208 pin 6.
Check the input of 5Vp-p pulse from I401 pin B7, A8, B8 are same as I402 pin 13, 15,
17, or check input of 5Vp-p pulse from I401 pin C7 is same as I402 pin 12.
OK
NG
Failure point
1) Printed wire broke between I402 pin 12 and I401 pin C7.
2) Printed wire broke between I402 pin 13 and I401 pin B7.
3) Printed wire broke between I402 pin 15 and I401 pin A8.
4) Printed wire broke between I402 pin 17 and I401 pin B8.
b
a
Summary of Contents for MultiSync LCD1525VA
Page 8: ...1 5 MultiS 4 Figure E 1 Figure C 1 Figure D 1 Clip A Clip B Power Switch Quick Start cont ...
Page 9: ...1 6 5 Quick Start cont ...
Page 22: ...1 19 2 B Version User s Manual ...
Page 31: ...1 28 Installation E 9 MultiSyn Figure D 1 Figure E 1 Figure C 1 Clip B Clip A Power Button ...
Page 32: ...1 29 E 10 Installation ...
Page 46: ...3 2 Photo 2 Photo 3 Screw B Screw C HOOK ...
Page 47: ...3 3 Photo 4 Photo 5 Screw D Screw E FUNCTION BD ASSY P601 Screw E Screw E ...
Page 109: ...for Human Potential ...