DirecTV IRD Reboot Sequences  Last Updated: March 29, 2000
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RCA 1st Gen Soft-Reboot
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Pull out the Access Card. Hold down the Power button and the
Down Arrow button on the receiver at the same time. Hold for 15 
seconds. Turn on the receiver. Press Select button twice. Re-Insert
Access Card when prompted. If it says card has expired, reinsert 
it. The receiver should now be turned on. It may be necessary to do
this over again. You may also try it with the card in instead of
removed. 
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RCA 1st Gen Hard-Reboot
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Pull out the Access Card. Hold down the Power button and the
Down Arrow button on the receiver at the same time. Hold for 15 
seconds. Unplug the receiver from the wall while holding down the
buttons. Hold for 15 seconds. Plug the receiver back in while still
holding down the two buttons. Hold for 15 seconds. Turn on the
receiver. Press Select button twice. Re-Insert Access Card when
prompted. If it says card has expired, reinsert it. The receiver
should now be turned on. It may be necessary to do this over again.
You may also try it with the card in instead of removed. 
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RCA 2nd Gen Soft-Reboot
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Pull out the Access Card. Hold down the Power button and the
Down Arrow button on the receiver at the same time. Hold for 15 
seconds. Turn on the receiver. Press Select button twice. Re-Insert
Access Card when prompted. If it says card has expired, reinsert 
it. The receiver should now be turned on. It may be necessary to do
this over again. You may also try it with the card in instead of
removed. 
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RCA 2nd Gen Hard-Reboot 
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Turn receiver power off. Remove the access card. Unplug the
receiver. Allow unit to sit overnight (approx. 6 hours) Insert the
access card, reconnect to AC power, and turn receiver power on.

*OR*

It has been found that by pushing the TV/DSS and Down Arrow on the
front of the receiver and then navigating to the TEST button on
screen and then pushing select. The test will run for a minute or
two and then give you option to select STOP on screen. Select STOP.
At this point the receiver will do a hard reboot.
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RCA 3rd Gen Soft Reboot
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Remove plastic from receiver.  On the receiver, press the Power
and the Down arrow, the screen should flicker and when it powers up
it will be reset back.
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RCA 4th Gen Soft Reboot (DRD222RD) (3 buttons on top of unit)
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Leave plastic inserted.  Go to any channel.  Press CH \/ and CH /\
at the same time.  A el-cheapo test pattern will appear.  Press
the power button as well (keeping your fingers on both the CH as
well).  Audio should kick in for about 10-15 seconds.  The system
will go black, reboot, search for satellite and you are done.
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RCA 4th Gen Hidden Menu Procedure
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Press CH \/ and CH /\ on receiver at same time for 10-15 seconds.
You will be brought to a hidden menu that could be useful for diags
and other interesting tidbits.
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RCA 5th Gen Soft Reboot
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Press the Info Button and the Right Arrow button for 5 seconds
until system resets itself.
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RCA 5th Gen Hard Reboot
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Pull access card.  Power reset ( power & down button at same time )
Keep holding buttons, Pull the Power cord. Keep holding buttons on
the actual receiver.  Plug back in and unplug while holding power
and down (a total of 4 to 5 in and outs)  Now put back in card unit
if possible with a diff card (plugged in at this point).  Hopefully
the problem should be gone. 

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Sony Receivers
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If you still have the box it came in on the outside will be a model
number. If you don't have the box look on the metal plate on the
back of the receiver. If the model number goes something like:
SAS-BS1 (note the 1 in the series) then you have a first Generation
unit. If the model number goes something like: SAS-BS2 (note the 2)
then you have a Second Generation unit.
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Sony 1st Gen Soft-Reboot
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Push and hold the Exit and Down Arrow button on the receiver at
the same time. Receiver will soft-reboot at this point and restart.
Power off and then back on.
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Sony 1st Gen Hard-Reboot, Sony 2nd Gen Soft/Hard-Reboot
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To do a hard reboot on a second generation Sony push and hold the
TV/DSS and Down Arrow at the same time. A Menu will come up at this
point and you want to select TEST on the screen. Once the test is
complete select STOP on the screen and the system will do a hard
reboot and restart.
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Sony 4th Gen Soft-Reboot
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Hold down the down and the menu buttons for 15 secondss screen will 
turn blank then look for signal.
I have tried resetting A50d through its data port.
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Sony A50D Resetting with Serial Interface
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You need to connect them as follows to your computer's serial
port (assuming a DB25 connector)

Sony        DB25
 7 ---------  7 (ground)
14 ---------  3 (RxD)
 6 ---------  2 (TxD)

Set your terminal to 9600 bps, 8 data bits, no parity
and hit a few returns on the keyboard.
If all is well, you will get:
DiagPrompt >

1)Connect serial cable from data port to COM1-4 on the PC.
  (no crossovers like with previous models)
2)Fire up your favourite Terminal app (set it to 9600 8-N-1)
3)Press "Enter" a couple of times
4)Now one should get "DiagPrompt >"

The sequence to RESET is:
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DiagPrompt > 27
Illegal Command Syntax: e834@^&$#e%&%&~#

Unexpected string at

DiagPrompt > 14
Diag > OK

DiagPrompt >
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To get help type "?"
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DiagPrompt > ?
 1   rom - Test ROM Checksum
 2  vram - Test VRAM(SDRAM)
 3  eprm - Test EEPROM
 4  ntsc - Show Color Bars
 5   cam - Read Access Card
 6   mdm - Test Modem
 7   led - Test Front Panel LEDs
 8  butn - Test Front Panel Buttons
 9   rmt - Test Remote Control
10  exit - Exit Diagnostics
11   ser - Set IRD Serial Number
12   ver - Set IRD Model Number
13   dch - Set Default Channel
14   eep - Initialize EEPROM
15 camid - Display CAM ID Number
16  fend - Test Front End
17    rf - Set RF/IR Remote State
18   sec - Set RF Security Code
19  dram - Test DRAM(for ARM)
20  vcrm - Test VCR Mouse
21   ird - Get IRD Type
22 syserror - Display Error Codes
23     ? - Display List of Commands
Syntax: [r rptCnt] {cmdName | cmdNum} [options] [- {cmdName | cmdNum} 
[options]]

rptCnt = 0 means repeat forever (default = 1)
Numeric values default to decimal. Use 0x before numbers for hex 
values.
For help on specific commands, type command name followed by ?
Diag > OK

DiagPrompt >

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Normally, 14 (eep) command does not work, but if you preceed it with
27, it will work.
Similarly, one can set model and serial number by the following
sequences:
28
then
ser NUM
to set your receiver serial number to NUM
or 
27
then
ver VER
to set your receiver model number to VER

This has been confirmed to work, however after a couple times doing
it, your audio may disappear, could be a glitch.

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Sony EEPROM Receiver Shorting Method
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Find IC104 listed on printed circuit board. On the Sony A-2 pins 
4;5; and 8 are marked.  Short out with alligator clip pins 4 and 6
(clip may overlap adjacent pins). Do not clip pins 1 or 8.  Do soft
or hard reboot (DSS/TV and down) choose test...after test choose 
the stop option.  Hit power switch OFF.  Remove alligator clip from
IC.  Reinsert plastic.  Hit power switch ON.  It should have reset
and you can now watch tv again hopefully.
 
      |   |   |   |
   .-----------------.
   |  8   7   6   5  |
   |                 |
   |    ST24x32      |    This is when you are looking at the chip
   |                 |    from above, make sure the dot is on the
   |. 1   2   3   4  |    left hand side or corner designating the
   `-----------------'    first pin on the IC.
      |   |   |   | 

Technote:  what you are really doing is shorting Ground (pin4) to
the SCL (serial clock) line on pin6.  

Datasheet info on the eeprom is located at for further reference:
  http://ai.mtron.ru/doc/seeprom/24c32.pdf 
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Hughes Soft-Reboot Procedure
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Press the and hold the Power button down. Press the Down button, 
Up button, then the Down button. Release the Power Button.
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Toshiba 1st Gen Soft Reboot Procedure
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Press the Power button down and the down arrow at the same time.
Thompson Electronics made this receiver. (same as RCA)  
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Uniden/Memorex Soft-Reboot procedure
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!Make sure you Access Card is out of the receiver while doing 
this!Push and hold the TV/DSS and Down Arrow button on the
 receiver atthe same time and a hidden menu will pop up on the
 screen. Use theremote or front panel arrows to navigate to the
RESET button onscreen and then push select. The receiver will 
power itself off.Wait a few seconds and power it back on and 
re-insert your AccessCard.
