Bose Wave II - AWRCC1 resets and CD skipping. Repair "Please Wait" problem

My neighbor was going to throw out this Bose Wave 2 radio because the CD player was skipping.

When the player is first plugged in and you try to select between AUX, CD or Radio, the player attempts to switch to your selection but then resets and your selection is not made.

After you press a button, the display goes dim and it flashes the "Please Wait" message as if it was just plugged in.

You are NOT able to switch to the radio and hear it play, or switch to CD and insert a disk.

After the player warms up a little, you can insert a CD and try to play it, but the CD skips. I have already taken the CD player apart to clean the lens but that did not fix the problem

A special thank you to "The Specialist" on YouTube who put me on the right path to repair the problem.
   • BOSE WAVE II CD LENS CLEANING  

After searching the web, I found out that the surface mount capacitors used in these Bose radios could be bad. I went through and replace a good number of them and now the radio and CD player are working perfectly.
https://jestineyong.com/audio-restora...

Caps I purchased for this project ( I used through hole instead of SMD)
QTY Value Volts
5 1uf 50v
9 10uf 16v
4 100uf 16v
6 22uf 16v
3 220uf 16v
1 3.3uf 50v
1 33uf 16v
7 47uf 16v

New Nichicon caps (through hole) - measured values out of circuit
Value Volts Measured uf Measured ESR
1uf 50v 1.2uf 8.8 ohm
10uf 16v 11uf 1.4 ohm
100uf 16v 110uf .38 ohm
22uf 16v 24uf 1.5 ohm
220uf 16v 203uf .17 ohm
3.3uf 50v 3.8uf 3 ohm
33uf 16v 37uf 1 ohm
47uf 16v 52uf 1 ohm

I purchased the caps from Digikey. Below are the links...

Please note that I am NOT compensated in anyway by any link listed here. I simply put them here for your benefit.

Nichicon UPW series (through hole type)
1uf
https://www.digikey.com/products/en?m...

10uf
https://www.digikey.com/product-detai...

100uf
https://www.digikey.com/product-detai...

22uf
https://www.digikey.com/products/en?m...

220uf
https://www.digikey.com/product-detai...

3.3uf
https://www.digikey.com/products/en?m...

33uf
https://www.digikey.com/products/en?m...

47uf
https://www.digikey.com/products/en?m...


jpg of MPU, CD board with measured values of the OLD capacitors in circuit...
https://www.dropbox.com/s/y0f75hn8u0n...

jpg of power supply, tuner, amp board with measured values of the OLD capacitors in circuit...
https://www.dropbox.com/s/cddm6hiqdg4...

ESR graph to use as a guide to determine if a capacitor's ESR value is within the acceptable range...
https://www.dropbox.com/s/ufznsapbmi8...


UPDATE: 4/21/2020
John Bosco and D_123 StL have reported that they were able to get their Bose Wave II working again by replacing one capacitor. Their radios were exhibiting the same "Please Wait" symptoms that my radio was showing. The cap that was replaced is located under the CD player and inside the metal box. When you pry the lid off of the box, you will see several silver capacitors. They replaced the 22 uf 6V cap shown in the photo (white arrow point to it). If you do not have a ESR meter to measure values of the caps, then replacing this cap and a few of the others inside the metal box would be a good start. It would be a lot easier than replacing all of the caps that I did in the video.
https://www.dropbox.com/s/ft7k87yqbks...



UPDATE: 11/2/2020
SMD
If using SMD capacitors, be sure to pay attention to the cap dimensions. As Infiniti25 pointed out in the comments below, the 16v rated caps may have a larger dimensions than the original 6v caps and will not fit on the circuit board pads. Their height may also prevent the metal can lid to close.

#Bose
#Badcaps