REPAIRING AND NOT THROWING AWAY

Richtige Fernseher haben Röhren!

Richtige Fernseher haben Röhren!

In Brief: On this site you will find pictures and technical information about Service Modes, Circuit Diagrams, Firmware Update procedure, Disassemble procedure, Universal remote control set-up codes, Troubleshooting and more....

If you go into the profession, you will obtain or have access to a variety of tech tips databases HERE IT IS Master Electronics Repair !.

These are an excellent investment where the saying: 'time-is-money' rules. However, to learn, you need to develop a general troubleshooting approach - a logical, methodical, method of narrowing down the problem. A tech tip database might suggest: 'Replace C536' for a particular symptom. This is good advice for a specific problem on one model. However, what you really want to understand is why C536 was the cause and how to pinpoint the culprit in general even if you don't have a service manual or schematic and your tech tip database doesn't have an entry for your sick TV or VCR.

While schematics are nice, you won't always have them or be able to justify the purchase for a one-of repair. Therefore, in many cases, some reverse engineering will be necessary. The time will be well spent since even if you don't see another instance of the same model in your entire lifetime, you will have learned something in the process that can be applied to other equipment problems.
As always, when you get stuck, checking out a tech-tips database may quickly identify your problem and solution.In that case, you can greatly simplify your troubleshooting or at least confirm a diagnosis before ordering parts.

Happy repairing!
Today, the West is headed for the abyss. For the ultimate fate of our disposable society is for that society itself to be disposed of. And this will happen sooner, rather than later.

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..............The bitterness of poor quality is remembered long after the sweetness of todays funny gadgets low price has faded from memory........ . . . . . .....
Don't forget the past, the end of the world is upon us! Pretty soon it will all turn to dust!

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Wednesday, 13 March 2019

HOW TO PROGRAM AT-6400 UNIVERSAL REMOTE CONTROL (URC)

HOW TO PROGRAM AT-6400 Universal Remote Control (URC)

PROGRAMMING PROCEDURE
This remote is initially programmed to only operate your set-top. You will need to set up the remote to operate your other devices using its TV, DVD, and
AUX modes. The TV key may be programmed to operate a standard or high-definition television (HDTV). The DVD key may be programmed to operate a DVD player. The AUX key may be programmed to operate a VCR, a receiver, an amplifier, or a Home Theater in a Box (HTIB) system. If the remote provides only limited functionality for a device, you can look for a code that provides more functionality. 
Note: You have the option to assign some remote keys to operate one device type only. For example, you may want to assign volume control to the TV only.  If this is the case, you can reprogram power, volume, and channel control using procedures found later in this guide.
Assigning a Device Code to a Mode Key
1. Refer to the code tables (by next post here) to locate the information for the device you want to program.
Note: If your device is not listed, you may be able to program the remote using the Auto-Search function.  Go to What If None of the Codes Work for
instructions.
2. Turn on the device that you want to assign to a mode key.
3. Press and hold the appropriate mode key (
TV,DVD, or AUX) on the remote, and then press and hold the OK key.
4. Release
both keys and the mode keys blink twice.
5. Enter the first 4-digit setup code for the device using the numeric keys (0-9) on the remote. The mode key blinks three times to indicate that the code entry was accepted.
Notes:
• When an invalid code is entered, the selected mode key displays a long flash to indicate that you have not entered the code correctly.
• Should the remote time-out before you complete the code setup, you must start over. This is indicated by one long flash of the red LED.
6. Point the remote at the device, and press
POWER to test the device.
7. Did the device power off?
• If
yes, write this code number in the table found in this guide. You may need it again if the device code is accidentally erased.
• If
no, repeat this procedure from step 3 using a different setup code.
Note: If none of the codes listed for your brand of device operate the device correctly, go to What If None of the Codes Work for instructions.
8. Repeat this procedure for each mode key you want to program.
What If None of the Codes
Work?
If none of the codes listed for your brand of device operate the device correctly, or if your device is not listed in the codes table, you can use the Auto-Search function to search through the code library for a valid code. This section provides procedures for using the Auto-Search function to search the code library for TV, DVD and AUX mode codes.
Note: Read the procedures in this section thoroughly before beginning. You need to be prepared to observe the behavior of the remote.
Auto-Search Features
Consider the following items when using Auto Search:
• The Auto-Search function begins searching from the first code.
• If a valid code is not found, the green backlight blinks twice and the remote returns to normal operation.
• If any other key is pressed except PLAY, ENTER, POWER, EXIT, REW, FF, or numeric keys 1 through 4 (when programming the AUX mode key), the
mode key displays a long red flash (error message) and the remote returns to normal operation.
• Should the remote time-out before you complete the Auto-Search function you must start over. This is indicated by one long flash of the red LED.
• If the device is not listed and the Auto-Search function is unable to find a usable code, you may need to use the original remote provided with the device.
Auto-Searching the Code Library for
TV or DVD Mode Codes
(Program Code 922)
Note:
This procedure only applies to TVs and DVDs.
1. Turn on the device you that you want to assign to the TV or DVD key.
2. Point the remote at the device.
3. Press and
while holding a selected mode key (TV or DVD), press the OK key. For example, to search for a TV code, press and hold TV and OK at the same time.
4. Release
both keys and all the mode keys blink twice.
5. Enter the programming code 922 by pressing the numeric keys on the remote. The mode key you selected in step 3 blinks twice to indicate a successful entry.
6. Point the remote toward the device, and press
PLAY.
7. Your device powers off when it finds the correct code. Then, choose one of the following options:
Save code and exit– Press the ENTER key on the remote to program the code in the remote and the mode key flashes three times indicating successful entry.
Step forward– Press the fast-forward (FF) key on the remote to step ahead through the codes one at a time. Then, return to step 6.
Step backward– Press the rewind (REW) key on the remote to step back through the codes one at a time. Then, return to step 6.
Exit without saving the code– Press the EXIT key on the remote. The selected mode key flashes three times and returns to normal operation.
Send the current code– Press the POWER key on the remote to send the current code. If the device turns back on, press the ENTER key. If the device does not turn on, return to step 6.
Continue with auto-search function: Press the PLAY key on the remote to continue with the auto-search function. Then, return to step 6.
Auto-Searching the Code Library for AUX Mode Codes (Program Code 922)
1. Turn on the device that you want to assign to the AUX key.
2. Point the remote at the device.
3. Press and
while holding the AUX key, press the OK key.
4. Release
both the AUX key and the OK key and all the mode keys blink twice.
5. Enter the programming code
922 by pressing the numeric keys on the remote. The AUX key blinks twice indicating a successful entry.
6. Press the
PLAY key, choose one of the following device categories and then, using the number keys on the remote, press its assigned number (1 – 4)
based on the following list:
1 = VCRs2 = Receiver/Tuners
3 = Amplifiers4 = HTIB
Note: The device categories are number-coded to provide a more direct programming method.
7. Point the remote toward the device, and press PLAY.
8. Your device powers off when it finds the correct code. Then, choose one of the following options:
Save code and exit – Press the ENTER key on the remote to program the code in the remote and the mode key flashes three times indicating successful entry.
Step forward– Press the fast-forward (FF) key on the remote to step ahead through the codes one at a time. Then, return to step 7.
Step backward– Press the rewind (REW) key on the remote to step back through the codes one at a time. Then, return to step 7.
Exit without saving the code– Press the EXIT key on the remote. The selected mode key flashes three times and returns to normal operation.
Send the current code– Press the POWER key on the remote to send the current code. If the device turns back on, press the ENTER key. If the device does not turn on, return to step 7.
Continue with auto-search function– Press the PLAY key on the remote to continue with the auto-search function. Then, return to step 7.
Reassign Mode Keys
you can reassign a mode key to operate a different device. For example, you can reassign the AUX key to operate a DVD player or a TV. If you reassign a
key, be sure you update the table found in this guide.
Reassigning Mode Keys
(Program Code 944)
1. Press and hold the STB mode key on the remote.
2. Without releasing the
STB key, press and hold the OK key.
3. Release
both the keys and all mode keys flash twice.
4. Enter the programming code
9 4 4 by pressing the numeric keys on the remote. The STB mode key blinks twice indicating a successful entry.
5. Press and release the mode key associated with the type of device you want to control, and then press and release the mode key that you want to change.
The newly assigned mode key blinks one time indicating a successful entry.
Some common examples:
• To program the AUX key to operate your DVD player, press DVD and then AUX.
• To program the DVD key to operate your TV, press
TV and then DVD
Change Volume Control
By default, once the TV mode key is programmed with a valid code, the volume and mute buttons control your TV. These keys adjust the volume of your TV higher, lower, or temporarily switch the volume off (Mute), regardless of whether the remote is in STB, TV, DVD, or AUX mode.  If you prefer, you can choose to have the volume and mute buttons always control a different device rather than your TV, such as a home theater receiver. (See Controlling Volume for One Device below.) Note that you must first program one of the mode keys, such as AUX, with a valid code for that device. Alternatively, you can choose to have the volume and mute buttons control different devices when the remote is in different modes. For example, you might want to control the volume on your TV when in TV mode, but the volume on your home theater receiver when in AUX mode. (See Controlling Volume for Different Devices below.) Note that not all devices have volume controls, so if you choose this option, the volume and mute buttons may do nothing in some modes, such as STB and DVD.
Controlling Volume for One Device (Program Code 955)
1. Press and hold the STB mode key on the remote.
2. Without releasing the
STB key, press and hold the OK key.
3. Release
both keys and all mode keys blink twice.
4. Enter the programming code
9 5 5 by pressing the number keys on the remote. The STB mode key blinks twice indicating a successful entry.
5. Press and release the mode key for the device you want the volume keys to control. For example, if you want to control volume through your TV, press and release
TV. The selected mode key blinks three times to indicate a successful entry.  The volume keys now control only one device whether you are in STB, TV, DVD, or AUX mode.
Controlling Volume for Different Devices (Program Code 955)
1. Complete steps 1 through 4 of the Controlling
Volume for One Device
procedure.
2. Press and release the
Enter key. The STB mode key blinks three times to indicate a successful entry.  After you press the Enter key, the volume keys control the device assigned to that mode. For example, in TV mode, the volume keys control volume for the TV only.
Notes:
• If any other key is pressed except the Mode keys and the ENTER key, the remote does not accept any changes or updates. The STB mode key displays a
long red flash and the remote returns to normal operation.
• If the remote times out before you complete programming volume control, the remote does not accept any changes. You must start over from step 1 of this procedure.
Change Channel Control
The remote is set by default to control channel selection on the set-top. You can also program channel control to control any of the TV, DVD, or AUX
mode devices provided the device allows for channel control assignment. Or, you can set the channel selection control programming to control channels (or
page up or down) for all of the devices programmed in the four mode keys. Otherwise, you can only control channels (or page up or down) on a specific
device, for example, the TV or DVD. 
Note: The channel control keys include CH/Page, Jump, and the numeric keys 0 through 9.
Controlling Channels for One Device (Program Code 966)
1. Press and hold the STB mode key on the remote.
2. Without releasing the
STB key, press and hold the OK key.
3. Release
both keys and all mode keys blink twice.
4. Enter the programming code
9 6 6 by pressing the numeric keys on the remote. The STB mode key blinks twice to indicate a successful entry.
5. Press and release the mode key for the device you want the channel key to control. For example, if you want to control channels on your TV, press and
release
TV. The selected mode key blinks three times to indicate a successful entry The channel key now always controls the device associated with the mode you selected in this procedure, whether in STB, TV, DVD, or AUX mode.
Controlling Channels for Different Devices (Program Code 966)
1. Complete steps 1 through 4 of the Controlling Channels for One Device procedure.
2. Press and release the
Enter key. The STB mode key blinks three times to indicate a successful entry.
After you press the
Enter key, the channel key now controls the device associated with the mode key you select. For example, in TV mode, the channel key
controls the TV, but in STB mode, the channel key controls the set-top.
• If any other key is pressed except the Mode keys and the ENTER key, the remote does not accept any changes or updates. The STB mode key displays a long red flash and the remote returns to normal operation.
• If the remote times out before you complete programming channel selection control, the remote does not accept any changes. You must start over from step 1 of this procedure.
Change Power Control
The POWER key on the remote is set by default to control the power switch on one device at a time, in either mode (STB, TV, DVD, or AUX). When in STB
mode, the remote switches the set-top from OFF (standby mode) to ON, or from ON to OFF (standby mode). However, you can alternatively program the
POWER key to control the power switch on up to four devices at the same time, instead of controlling one device at a time. It is highly recommended that you set up the POWER key to turn on and off your set-top and your TV at the same time. Turning off the set-top saves electricity and extends the life of the box. When turned off, the set-top can
still record scheduled programs on its DVR and perform any other necessary functions.

Controlling Power for Multiple Devices at Once (Program Code 977)
1. Press and hold the STB mode key on the remote.
2. Without releasing the
STB key, press and hold the OK key.
3. Release
both keys and all mode keys blink twice.
4. Enter the programming code
9 7 7 by pressing the numeric keys on the remote. The STB mode key blinks twice to indicate a successful entry.
5. For the first device, press the
STB key. The STB mode key blinks twice.
6. For the second device, press the applicable mode key (TV, DVD, or AUX). The selected mode key blinks twice.
7. Repeat step 6 for up to two more devices (total of four devices).
8. Press the
ENTER key to complete the power switch control programming. The last selected mode key blinks 3 times to indicate a successful entry.
Example: In an example scenario where you press only TV in steps 6 and 7, the POWER key controls both the set-top and the TV at the same time,
regardless of which mode the remote is in
(STB, TV, DVD, or AUX).
Controlling Power for One Device at a Time (Program Code 977)
1. Complete steps 1 through 4 of the Controlling Power for Multiple Devices at Once procedure.
2. Press the
ENTER key to complete the power switch control programming. The last selected mode key blinks 3 times to indicate a successful entry.
After you select a mode, the POWER key controls the device assigned to that mode. For example, in TV mode, the remote controls power for the TV only.
Notes:
• If any other key is pressed except the Mode keys and the ENTER key, the remote does not accept any changes or updates. The STB mode key displays a long red flash and the remote returns to normal operation.
• If the remote times out before you complete programming power switch control, the remote does not accept any changes. You must start over from
step 1 of this procedure.