CDs will not eject or change and makes a buzzing sound. Check gear on load motor, it splits and shaft spins on it. Use expoy and attach it to shaft. If split is too wide then you must replaced the gear 189099 (Sorry we only have a few left, so no sales of gear only.) Update 12-26-2012. If you or the owner of the unit has pushed the eject so many times it has overheated the motor it maybe bad. Unplug the ribbon cable from the main PCB and apply 9 volts from a battery . It should spin if ok. If this motor is bad nothing will work.
Please do NOT glue the gears to each other!!
Check Q851 2SC2412K could be loose or bad on cd PCB.
Display low and/or CD not working
Power supply save time and change all the caps on the PCB. Must change C24 C27
Q10 was 2SB1142 change to 2SB1136 and turn it around. Have a mod for older pcb.
If after changing the caps the display is still dim, then you need to change the display tube.
Lighting hit - Change Q102 Q104 2SA608 Sometimes the resistors are also open. Most likely the bass amp also has problems, that is a little hard thing to repair. Requires the replacement of over 20 components for power surge.
Audio popping noise or motor boating.
Change TDA7313 U102 U100
We repair this unit if you need repair service. Flat Rate is
If you would like to sell one, we pay $25.00 for them to use for parts. We will pay shipping cost.
For the people who have a lighting hit unit, you will need to repair the sub woofer also. I will post the repair for that later. You will need to replace over 20 ICs in that unit. Takes over 3 hours.
We charge $250.00 to repair complete system if it is a digital system (series II).
I have full service manual in paper form.
Contact us
Audio Lab of Ga
www.audiolabga.com
1 770 455 0571
sales@audiolabga.com
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LS 20, cd unit is working, but CD not loading in the bay, cd remaining in the magazine, however it searches from 1-6 (Up/down) I am a DIY manenthuastic.....
ReplyDelete(No remote control) I only manually operate, would it make any better?
Thanks
Nicholas
LS 20, cd unit is working, but CD not loading in the bay, cd remaining in the magazine, however it searches from 1-6 (Up/down) I am a DIY manenthuastic.....
ReplyDelete(No remote control) I only manually operate, would it make any better?
Thanks
Nicholas
Hi There, I have a Bose CD-20 and the CD moves from the cartridge, and loads like it is going to play, but does not spin? Do you know how to fix this problem?
ReplyDeleteThis comment has been removed by the author.
ReplyDeleteHi there,,,, the FM&am Radio not working i'm able to change the number station and do search, but nothing happen no signal station come up, I check with my osiloscope I found no osilator signal,the cristal clock not working, I replace it and now the FM working ok, but still got the same problem with the am. anyone met this problem ? anyone know where I can find a gear 189099 thank :)
ReplyDeleteAnother small gear which splits is on the shaft driving the laser assembly (sled gear). gluing not a solution, as the wider tooth at the split causes it to jam!
ReplyDelete0