Question about Timex T609T Clock Radio
After a few months, the CD player stopped working. It doesn't spin, and it shows "no" in the clock display. I called the company, but they are not exchanging or repairing it. Anybody know a fix? Thanks.
Each CD Player has a potentiometer to adjust the laser assembly alignment. The T609t CD player has a tiny pot of 2000 Ohms (2K) about 1/8 x 1/8 of an inch on a tiny printed circuit board right under the laser assembly. I tried adjusting its value with no success. The wiper was not making contact with the carbon layer below it. I removed it and soldered in 2 wires of 6 inches to work out of the box. I attached at the end of the 2 wires a small printed circuit board of 1/2 x1/2 inch to solder a new pot of 1000 Ohms in series with 50 Ohms resistor. I started increasing the pot value until about 700 Ohms and immediately the Player showed 01 on the display and started to play IL DIVO songs. Obviously after each new setting of the pot I had to repeat the same routine: Power off, power on, hit Play, see No CD message on the display until I found the right initial value on the pot. I still had to tweek it up toward 750 Ohms because it was skipping a bit of song number 8. It is working fine now.
I taped my mod, tucked it in the box and closed the whole thing until the next time it will go out of alignment.
The pot I am using is bigger (3/8x3/8x1/4) it takes 44 turns of 180 deg to sweep it from 0 to 1000 Ohms. The old pot is swept from 0 to 2000 Ohms in one turn of 120 deg. The 50 Ohms resistor was for safety in case I hit 0 Ohms on the pot. I kept it in the mod in case I want to hook a scope.
Posted on Jan 19, 2010
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