| Author |
Message |
tcerka
Joined: 02 Oct 2008
Posts: 22
Location: Phoenix
|
| Posted: Sat Oct 18, 2008 11:10 pm Post subject: On diagnosis before dismemberment (nothing to see here Pete) |
|
|
So I'm not going to 'ass'ume that I know what the problem is with my 4000D anymore. I'm not going to just grease myself up and dive in with my screwdriver. I'm going to be respectful and gentleman like from now on.
I think that my HVPS needs work, but I don't know that. I want to test voltages as outlined by Scott while discussing AR's 4000G. Since I already have all the cards out of the machine, other than the CPU, what is absolutely necessary to test the HVPS? How do I turn off the interlock on my CPU (only 4 dips)?
Tim
|
|
| Back to top |
|
 |
tse
Joined: 03 May 2006
Posts: 1014
Location: Sweatbucket, Fl.
|
| Posted: Sun Oct 19, 2008 4:09 pm Post subject: |
|
|
Alot of the bds are going to have to be there. The SMPS will not run right if the load gets too low because bds aren't plugged in.
Some bds have to be installed so there are no I2C bus communication errors.
The registration bd and vertical bd.
The registration amp, the CRT cards, RGB bd, video decoder, text/text bd can be left out. The CRTs don't need to be there.
CPU dip switch number three will have to be on to avoid the "open interlock" error when some bds are not installed.
Alot of checks can be made with just a DVM to determine if things are running right.
Scott
_________________
"Were we directed from Washington when to sow and when to reap, we would soon want bread."
Thomas Jefferson
|
|
| Back to top |
|
|
tcerka
Joined: 02 Oct 2008
Posts: 22
Location: Phoenix
|
| Posted: Sun Oct 19, 2008 9:10 pm Post subject: |
|
|
I didn't get to far. When I turn on the rocker switch on the back plate, leds on the cpu light up. During 10+ attempts to power up there have been three different groups of leds on.
Through all attempts: monochrome(off), CTS(on), RTS(off), +12V(on), +5V(on), unused(off).
On the first bunch of attempts: HV Fail(on), RS232 Fault(on), I2C Fault(on), I2C Active(on/not flashing).
Then once I got the opposite: HV Fail(off), RS232 Fault(off), I2C Fault(off), I2C Active(off/not flashing).
The last feww attempts went like so: HV Fail(on), RS232 Fault(on), I2C Fault(on), I2C Active(off/not flashing).
I dont have a remote so I am sending ASCII commands through CRT 4.1. When sent a power on command the SMPS would give the audible click on sound, the red led on the back plate would light, and green leds on the SMPS would start to light then it would shut down.
Dip switch three is on(pressed). All components are in place except: RGB, Quad, Text, CRT Amps, Reggie Amp. The HV anodes are disconected.
Tim
|
|
| Back to top |
|
|
tcerka
Joined: 02 Oct 2008
Posts: 22
Location: Phoenix
|
| Posted: Sun Oct 19, 2008 11:43 pm Post subject: |
|
|
|
If the SMPS fails to start is there a specific cycle time before it will try again?
|
|
| Back to top |
|
|
tse
Joined: 03 May 2006
Posts: 1014
Location: Sweatbucket, Fl.
|
| Posted: Mon Oct 20, 2008 12:27 am Post subject: |
|
|
Nope. The SMPS doesn't have alot of smarts. It is totally controlled by the CPU. There is a bit sent over to turn on.
Here is where a remote control would be a big help. The display would say why the CPU shut down the projector.
If I remember right a voltage rail that is too high (too low?) will cause shutdown as will high voltage restarts.
Is there a way to read the message sent to the remote with the CRT software? I'm pretty sure it is RS-232.
Scott
_________________
"Were we directed from Washington when to sow and when to reap, we would soon want bread."
Thomas Jefferson
|
|
| Back to top |
|
|
tcerka
Joined: 02 Oct 2008
Posts: 22
Location: Phoenix
|
| Posted: Mon Oct 20, 2008 12:38 am Post subject: |
|
|
Good question. It is RS232. I now have "Birdmans" Ampro Remote program running and it has a window for displaying text but so far there is nothing. In a few more attempts later this afternoon I havent got it to even try. If the main fuse was fried the cpu would not power up, true?
Tim
|
|
| Back to top |
|
|
stefuel
Joined: 07 Mar 2006
Posts: 3353
Location: Green Harbor MA USA
|
| Posted: Mon Oct 20, 2008 9:54 am Post subject: |
|
|
I might have a original wired remote here but can't look for it till tonight. The best way to trouble shoot it is to put it ALL back together and try to fire it up with a original remote and watch the progression of error codes pop up on the remote. Many times multiple error codes will pop up but it's usually the first one that is the problem. The secondary codes are usually the result of something else not happening because of the first error.
_________________
Chip
A Barco is only a AmPro with training wheels
Card carrying member of the AVS chain gang.
|
|
| Back to top |
|
|
tse
Joined: 03 May 2006
Posts: 1014
Location: Sweatbucket, Fl.
|
| Posted: Mon Oct 20, 2008 11:50 pm Post subject: |
|
|
| tcerka wrote: | Good question. It is RS232. I now have "Birdmans" Ampro Remote program running and it has a window for displaying text but so far there is nothing. In a few more attempts later this afternoon I havent got it to even try. If the main fuse was fried the cpu would not power up, true?
Tim |
If the main fuse is open there will be no power to the CPU. Check the 5V and 12V LEDs on the CPU card. The power for the CPU comes from a section of the LVPS that is seperate from the rest of the power supply and seldom has troubles.
If the CPU is powered up the remote control shows the model number in the display even before the SMPS is turned on.
Scott
_________________
"Were we directed from Washington when to sow and when to reap, we would soon want bread."
Thomas Jefferson
|
|
| Back to top |
|
|
tcerka
Joined: 02 Oct 2008
Posts: 22
Location: Phoenix
|
| Posted: Tue Oct 21, 2008 1:34 am Post subject: |
|
|
|
I look forward to hearing from Chip about a remote.
|
|
| Back to top |
|
|
|
|
