PDG-DSU21
28
Power Source Troubleshooting:
How to check the power board?
How to check the main board?
- check the 380v output on connector 3 see page 44
- check the fuse on the power board
- check the voltage on the 9 pins.
- Other M/B information in Appendix D.
No Power Source
after turning on
Replace AC
socket
Replace safety
switch or reinstall
Replace power
wire
Replace power
board
Replace
mainboard
OK
OK
OK
OK
NG
NG
NG
NG
Check 9 pin
Power output
Check
Safety Switch
Check AC socket and
connector
Check 7PIN power
wire
Fan failure after
turning on
Reconnect fan
Replace fan
Replace
Mainboard
NG
NG
NG
OK
OK
Check
Mainboard
Check
Fan
Check fan
connection
Pin1:
+5VS
Pin2: GND
Pin3:
+5VS
Pin4:TP40
(function:Change
power net)
Pin5: GND
Pin6: GND
Pin7: GND
Pin8:
+12V
Pin9:
+12V
Check
Fuse
OK
Replace fuse
NG
PIN 1
Summary of Contents for PDG-DSU21B
Page 8: ...PDG DSU21 4 1 2 DSU21 System Block Diagram ...
Page 26: ...PDG DSU21 22 Step Figure Description 17 Remove the foot stand ...
Page 29: ...PDG DSU21 25 3 z Remove the screws M3x6x2 z Remove Color wheel module ...
Page 50: ...PDG DSU21 46 6 1 Mechanical Drawing ...
Page 51: ...PDG DSU21 47 6 2 Optical Parts Location ...
Page 52: ...PDG DSU21 48 ...
Page 53: ...PDG DSU21 49 ...
Page 58: ...PDG DSU21 54 z Appendix D More details for main board measurement 1 Signal of DAD2000 26V 26V ...
Page 59: ...PDG DSU21 55 2 Ballast Feedback Signal ...
Page 60: ... KA7AA May 2008 DC 300 Printed in Japan SANYO Electric Co Ltd ...