Linn Classik music system, Will no longer turn on after slowly giving up, digital display gave up first!

If you have no flashing indicators, you most likely need a Display Microprocessor IC(a computer inside your unit.) it may also be the VSS and VCC to IC itself.

How to Unlock a Chevy Radio Step 1: Start the vehicle and turn on the radio.
Step 2: Press and hold preset numbers 2 and 3 until a three digit code appears on the radio display. Write this code down.
Step 3: Press the AM/FM button. Your radio will display a second three digit code. Write the second code down. You will now have a six digit code.
Step 4: Call the Chevy Radio Code phone line at 1-800-537-5140.
Step 4: Enter 106010 followed by the # key to direct you to the radio code retrieval system.
Step 5: Enter the six digit code you retrieved in steps 2 and 3 followed by the * key. They must be in order. You will be given a four digit radio code. Write down the radio code.
Step 6: Start your vehicle and turn on the radio. Using the Minute and Hour buttons, enter in the four digit radio code to your stereo system. Press the AM/FM button to unlock your stereo.
How to Unlock a GM Radio Step 1: Start the vehicle and turn on the radio. The radio will display "LOC" indicating the Theftlock system is activated.
Step 2: Press and hold preset buttons 1 and 4 for ten seconds. (If you don't have a fourth preset button, press and hold presets 2 and 3.) The radio will display a three digit number. Write this number down.
Step 3: Press the AM/FM button. Your radio will display a second three digit code. Write the second code down. You will now have a six digit code.
Step 4: Contact your local GM Dealer and give them the six digit code. They will give you a four digit radio code.
Many dealers will give you your radio code for free, while others may charge a small fee. If your dealer is charging a larger fee, consider calling another dealer or doing a Google search for sites offering GMC Radio codes. They usually charge a small (around $10) fee.
Step 5: Start your vehicle and turn on the radio. Press the Hour button on the radio until the first two number of the code appear. Next, press the Minute button until the last two numbers of the code are displayed. Once all four digits appear, press the AM/FM button to unlock your stereo. The display will read "SEC" indicating you have successfully unlocked your radio and it is fully operational.
If radio display reads "INOP" while the vehicle is on, too many incorrect radio codes have been entered. To remove "INOP" from your display and unlock your radio, you must leave the key in the On position for one hour. Once you've retrieved your radio unlock code, write it down for future use. Your radio code will not change and having it handy will save from going from the radio code retrieval process again.

Belts are like big rubber bands. If they wear out and begin to stretch with age, there is no longer enough tension to move the turntable. They may also start and then quit once it warms up and the belt gets warm and expands. See how loose it is once it has been running.

Try this: How to Unlock a Chevy Radio Step 1: Start the vehicle and turn on the radio.
Step 2: Press and hold preset numbers 2 and 3 until a three digit code appears on the radio display. Write this code down.
Step 3: Press the AM/FM button. Your radio will display a second three digit code. Write the second code down. You will now have a six digit code.
Step 4: Call the Chevy Radio Code phone line at 1-800-537-5140.
Step 4: Enter 106010 followed by the # key to direct you to the radio code retrieval system.
Step 5: Enter the six digit code you retrieved in steps 2 and 3 followed by the * key. They must be in order. You will be given a four digit radio code. Write down the radio code.
Step 6: Start your vehicle and turn on the radio. Using the Minute and Hour buttons, enter in the four digit radio code to your stereo system. Press the AM/FM button to unlock your stereo.
How to Unlock a GM Radio Step 1: Start the vehicle and turn on the radio. The radio will display "LOC" indicating the Theftlock system is activated.
Step 2: Press and hold preset buttons 1 and 4 for ten seconds. (If you don't have a fourth preset button, press and hold presets 2 and 3.) The radio will display a three digit number. Write this number down.
Step 3: Press the AM/FM button. Your radio will display a second three digit code. Write the second code down. You will now have a six digit code.
Step 4: Contact your local GM Dealer and give them the six digit code. They will give you a four digit radio code.
Many dealers will give you your radio code for free, while others may charge a small fee. If your dealer is charging a larger fee, consider calling another dealer or doing a Google search for sites offering GMC Radio codes. They usually charge a small (around $10) fee.
Step 5: Start your vehicle and turn on the radio. Press the Hour button on the radio until the first two number of the code appear. Next, press the Minute button until the last two numbers of the code are displayed. Once all four digits appear, press the AM/FM button to unlock your stereo. The display will read "SEC" indicating you have successfully unlocked your radio and it is fully operational.
If radio display reads "INOP" while the vehicle is on, too many incorrect radio codes have been entered. To remove "INOP" from your display and unlock your radio, you must leave the key in the On position for one hour. Once you've retrieved your radio unlock code, write it down for future use. Your radio code will not change and having it handy will save from going from the radio code retrieval process again.

If this is the correct model number CD-C622 there doesn't appear to be an input. You would need an input to connect this to a television and get sound out of it. I am copying and pasting the specs "It's a stereo mini-system with 40 watts per channel, and it incorporates a three-disc CD changer, a dual-well cassette deck, and an AM/FM tuner. The CD-C622 is equipped with surround sound decoding and surround speakers that add an extra ambiance to music. CD functions include 32-track programmability and repeat/random playback. The radio offers 40 station presets. The cassette deck has full-logic controls. There's a front panel clock/timer and a multi-color fluorescent display. A five-program equalizer gives you presets to suit different types of music, and there's a bass boost function, too. This system also comes with a Toslink digital audio output for recording CDs onto CD-R or MiniDisc."

Unless the input was omitted from this listing of the specs there wouldn't be a way to connect this to a television. I recommend purchasing a sound bar.

I'm not sure if your HD51 has a phono connection (two RCA jacks marked as phono input). In case there is one available you can connect your turntable at these connectors. The earthing wire from your turntable (since HD51 has no screw for connecting this cable) can be connected together with one of the RCA at the outter metal. Alternative you can connect the earthing point at any of the back screws cover of the HD51. There is no way to make damage at any of these connections. Make sure that before connecting your HD51 is powered off. After the connection, check that the volume is at the minimum setting and power on the HD51. Start increasing volume slowly. In case a hum comes from the speakers, the earthing point is loosy or the color around the point that the earthing cableis connected prevents the connection.
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stereo codes for Honda

Method 1 (all applicable models except '03-07 Accords with the navigation system)
1. Turn the ignition switch to ON (II).
2. Turn on the audio unit, and make sure you see stereo COdE in the display. If you don't see this message, pull the backup fuse for 1 minute, and then go back to step 1.
3. Turn off the audio unit.
4. Press and hold the 1 and 6 preset buttons, then turn on the audio unit. The display toggles between two screens. The first screen displays a U and the first four digits of the serial number (for example, U2200). The second screen displays an L and the last four digits of the serial number (for example, L0055). Ignore the U and L, and write down all eight digits.

Method 2 ('03-07 Accords with the navigation system)
1. Turn the ignition switch to ACC (I).
2. Turn on the audio unit, and make sure you see COdE in the upper display. If you don't see this message, pull the backup fuse for 1 minute, and then go back to step 1.
3. Turn off the audio unit.
4. Press and hold the top halves of the SEEK/SKIP and CH/DISC bars, and then press and release the PWR/VOL knob. This display toggles between two screens. The first screen displays a U and the first four digits of the serial number (for example, U2200). The second screen displays an L and the last four digits of the serial number (for example, L0055). Ignore the U and L, and write down all eight digits.
5. Call Honda Dealer for Radio Code.
6. Use the TUNE knob to enter the first four digits of the anti-theft code into the audio unit. (Ignore the last digit; it's not used.) When you turn the TUNE knob, COdE disappears, and a single digit is displayed. Turn the knob left or right to select each of the anti-theft code digits. When you press the TUNE knob, the system beeps and accepts each digit as it spells out CODE on the display.

https://radio-navicode.honda.com

I would say that you should re-install the Western Digital My Book.

Hope this helps!

Hi, you have to replace the 100uf capacitors c14 c15 c16 c17 and c19 on the digital board, that will cure your LED fad problem.

Chris.

You will need to pull the radio and record the serial number and model number off the radio chassis, take that info and your proof of ownership for the car and the dealer should be able to give you that info for free by using the manufacturer online info service they have.