Sanyo PDG-DWT50L - Thermal sensor shutdown - Fixed!
Apr 16, 2016 9:27:55 GMT -5
grahamriver likes this
Post by jeremy on Apr 16, 2016 9:27:55 GMT -5
So I've had this Sanyo PDG-DWT10L Sitting here for a while with thoughts of whats keeping it from working. Its problem is:
Plug it in, goes through its quick pre-power-on boot-up, press power to turn it on, projector powers on, both lamps (new by the way, and tested with a diff pair of known working lamps) light up, and an image is projected for anywhere from 15-45 seconds.
The projector then shuts down with 2x warning blinking indicating in the user & Service manual that its a temperature/overheating error. The errors LEDs are pretty specific in that the SM says the 2x repeated blinks is a thermal sensor error and not fans and so forth.
The problem is, there is really no way for me to identify which sensor is triggering the detection circuit to shutdown the projector. If I could hook up the RS232 to a PC I could run a diagnostic on it and it would indeed tell me what specific sensor is triggering the error, but the projector does not stay on long enough for me to configure RS232 so I have no way to get that far.
So point being, I need help! lol. This projector is identical to the NEC NP4001, and both the NEC/Sanyo variants also have XGA versions (PDG-DXT10L & NP4000) The service manual for the NEC variants is not available, but both Sanyo Variants are available from ET. Any help at all would be appreciated since this thing is a block of electronics (not the easest to work on, but doable with some patience
)
Plug it in, goes through its quick pre-power-on boot-up, press power to turn it on, projector powers on, both lamps (new by the way, and tested with a diff pair of known working lamps) light up, and an image is projected for anywhere from 15-45 seconds.
The projector then shuts down with 2x warning blinking indicating in the user & Service manual that its a temperature/overheating error. The errors LEDs are pretty specific in that the SM says the 2x repeated blinks is a thermal sensor error and not fans and so forth.
The problem is, there is really no way for me to identify which sensor is triggering the detection circuit to shutdown the projector. If I could hook up the RS232 to a PC I could run a diagnostic on it and it would indeed tell me what specific sensor is triggering the error, but the projector does not stay on long enough for me to configure RS232 so I have no way to get that far.
So point being, I need help! lol. This projector is identical to the NEC NP4001, and both the NEC/Sanyo variants also have XGA versions (PDG-DXT10L & NP4000) The service manual for the NEC variants is not available, but both Sanyo Variants are available from ET. Any help at all would be appreciated since this thing is a block of electronics (not the easest to work on, but doable with some patience
)
