DLPLCR6500EVM: Pattern on DMD panel can not be changed and unable to switch to pattern from memory mode

Hello Fizix，

Thanks for your reply. We have used the DLP LightCrafter 6500 Firmware and Software Bundle with GUI Source Code v 3.0.0 ( soft ware dated 9/2016). And the power supply (ASTEC Model: DPS53-M)  has enough wattage which was purchased from Mouser Inc.  According to User's Guide, first we connected the EVM to power and turned the power on. A continuous pattern display sequence began. Then we used USB cable  to connect it to computer and opened the software. Second, we selected Pattern On-The-Fly Mode and add two patterns (exposure time 1000000us). And then selected “Update Lut” and “Start”. The two patterns can be seen on DMD panel. But when we press "stop", the two patterns have not disappeared and shows all time (Fig.1). So we turned off the power and rebooted the system.  When we changed the operating mode from "video mode" to others,  the software showed "unable to pattern from memory mode. Error Invalid controller /ＤＭＤ". Soft ware can not control the EVM.  We think the DMD mirrors are stuck. Is it right? What can we do?

Fig1. the patterns always showed on DMD even if the power turned off

Fig.2  the software can not control the EVM.

Best

Jiawen

Dear,
I have just purchased this product. Now I need DLP for work. Customer Service Representative is waiting for your approval . Return/replace one? I am looking forward to your response. Thanks!

Jiawen

Hello Jaiwen,

I consulted with the development team here and the following is a summary of their response:

We have seen issues like this under the following conditions:

• Bad flex cable or flex cable connectors that are not firmly tightened
• DMD not seated correctly into the DMD socket
• SPI connection between EVM and DMD board is bad (usually flex cable issue - see above)
• DMD board has become bad
• Occasionally the DMD itself has gone bad (this can happen if the DMD board is touched while the EVM is running)

Was the DMD board handled while the DMD was running?

Fizix

Hello Fizix,

The DMD board has not been touched because we know the board consists of micromirrors. It is common sense. 

Jiawen

My group purchased a DLP 6500 EVM (purchase order number: 10522123) from Mouser Inc. (Shanghai) last year. It works well. Last month we have  bought  another DLP 6500 EVM (purchase order number: 11689238). But it can not used. It is not my fault. So I ask to replace new one. The customer representative of mouser Inc. said they  can replace new one after Ti  validate TI’s approval. We have no time to wait.  We are looking forward to TI’s approval soon.

My group purchased a DLP 6500 EVM (purchase order number: 10522123) from Mouser Inc. (Shanghai) last year. It works well. Last month we have  bought  another DLP 6500 EVM (purchase order number: 11689238). But it can not used. It is not my fault. So I ask to replace new one. The customer representative of mouser Inc. said they  can replace new one after Ti  validate TI’s approval. We have no time to wait.  We are looking forward to TI’s approval soon.