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View Full Version : 3900 jy fix... recovery possible??


Roy4450
02-04-2005, 04:45 AM
Lost power before screen came back after doing jy fix (sb 39- sb40) on a 3900 receiver. Now I only get a black screen, no system info or anything.

Is there a way to recover from this? Maybe full flash and eeprom rewrite? or...?????

BirdieMod
02-04-2005, 08:45 AM
Black screen is normal after a JY, Pull the card, Hook up the sat and plug the power in, Let it restream.

Roy4450
02-04-2005, 05:57 PM
Thanks Birdie, it finally did.

page1
02-04-2005, 06:39 PM
I did the JYF and it restreamed, my location ID is still 00000001 - any ideas?

Thanks

BirdieMod
02-04-2005, 07:21 PM
Either did not hold the JY jumper long enough or was ecm'd right away again.

Rax
02-04-2005, 07:26 PM
Either did not hold the JY jumper long enough or was ecm'd right away again.
Dang Birdie your all over it like a rat on a cracker

page1
02-04-2005, 07:42 PM
Birdie,

Reciver is a 4700

Here is what I did:

Connect the SAT Signal
JUMP SB39 to SB40
Plug in the power
Wait 6 Seconds
Un JUMP SB39 to SB40 (With power still on)
-Light blinks
-light goes solid (~8 min)
-light blinks
System reboots
-system Info

still Location ID 00000001

Did i miss something?

BirdieMod
02-04-2005, 07:54 PM
Is the card pulled out?
After JY does it have a blank screen on the tv?
Does this receiver have a public tsop with non matching to this units ird number loaded on it?

page1
02-04-2005, 08:04 PM
Note: this has a AR105b lock on it, but durning the JYF it is turned off (Acording to OddCircuits)

1) Yes, Card is pulled out
2) Yes, after I un-jump the screen goes blank, and stays blank whille the LED is light solid
3) No, the the reciever does not have a public tsop

What should I try next?

Also, when i jtag the receiver all i get back from jkeys is 0x0000000

BirdieMod
02-04-2005, 08:16 PM
Oddcircuits was going to send me a 105 about 6 months ago, But never did so just guesses here.
I'd be pretty sure it's lock related, Possibly the r259 33 ohm resitor removed in the installation is preventing the restreaming. Also the last few firmware updates have been changing the eeprom around, Might give the remote eeprom NV ram hard reset a try then JY again.
How long are you holding the JY? Might try longer also. I know 301'13's flash power light after about 10 seconds, But come back 0000001 still and need about 35 seconds to actually fix.

page1
02-04-2005, 08:56 PM
i thought if you hold it down longer then 15 sec you will fry the receiver.