- 3 -
Is the RELAY-ON signal
2V or higher?
(3-pin of the SH and RH
connectors)
Failure in the peripheral circuit of
IC740.
The fan doesn’t rotate even when the POWER button is pressed.
Check STBY20 (20V).
Power doesn't turn on.
Is the relay (K950) on the
POWER PCB ASSY
working?
Failure in the relay or the peripheral
circuit.
Is STBY20 (20V) output?
(6-pin of the RD connector and
4-pin of the SD connector)
Failure in the PCB-POWER.
Check F980 (POWER PCB ASSY).
If they are blown, eliminate the
cause of the failure and replace
them.
Failure in the MAIN PCB ASSY.
Power source system 2
Yes
No
Is the thermostat turned off?
Check the thermostat.
Yes
No
Yes
No
Yes
No
Summary of Contents for DLP XD8100U
Page 9: ... 4 PCB LOCATION Fig 1 1 2 7 5 8 3 4 6 9 10 11 12 13 14 ...
Page 11: ... 6 EXPOSED VIEW Fig 2 1 5 3 Fx1 Hx2 7 2 Dx2 Cx3 8 Ex1 Gx1 1 Ax1 4 6 Kx2 Jx1 Bx1 9 DLP ASSY ...
Page 13: ... 8 Chassis ASSY 1 Fig 2 2 1 Ax10 Bx2 Cx2 4 5 Fx5 Gx2 Hx2 6 8 9 2 Kx5 Lx3 3 Dx2 7 Jx1 Ex2 ...
Page 15: ... 10 1 Ax5 4 5 6 8 7 Bx2 Cx4 Dx2 Ex4 Hx2 11 2 3 10 9 Hx2 Fx1 Gx2 Chassis ASSY 2 Fig 2 3 ...
Page 22: ... 17 1 2 3 4 5 6 7 8 9 10 E x 2 C x 2 D x 2 B x 2 A x 2 Filter ASSY Fig 2 7 ...
Page 146: ... MEMO ...
