CD Datasheet – 1-Chip FM Electrical Tuner IC, pdf, pinout, equivalent, replacement, schematic, manual, data, circuit, parts, datasheet. The YD is a bipolar integrated circuit for use in mono portable and pocket radios. It is used when a minimum of peripheral components (of. cd datasheet, cd datasheets, cd pdf, cd price, cd buy, cd stock.

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After enjoying repairing a few AM radio kits, I embarked on datwsheet challenge to build a cheap Chinese dual-band radio kit. Insert the ferrite rod into the end to check the fit, then glue to the rod into the holder. One time I even reduced the turns on one of the coils. Get good reception aroun Mhz with correct pointer position. Start alignment with the FM band. Will see if it works as well as yours did.

Would have liked the legs on the FM chip a bit longer, would have been even better if chips had fitted into DIL sockets. Just another way engineering solves the day!

June 15, at Start by securing the PCB to the front of the case using a short tapping screw on the stud in-between the volume and tuning dials. Bench-top supply with crocodile clips, 3V output to power receiver during tuning recommended, but not absolutely necessary.

The radio is out of tune! Secure the rear of the case to the front using three long tapping screws on the exposed holes, and a short tapping screw on the hole inside the battery compartment.

Do not touch the antenna or you may be burnt! The unit has an IF of about 70kHz, and features a frequency locked loop with internal muting of weak signals.

(PDF) Cd9088 Datasheet download

About one to two hours of time to complete the kit. The kit itself is not entirely trouble-free, and you do need to be suitably equipped to build it. To adjust the FM alignment, you need to use a flat blade screwdriver and adjust the right brass screw on the rear of the variable capacitor i.


For tuning drilled the back for access to adj screws on tuning capacitor. Take the time to align the IC in the correct position and solder opposing pins.

Once that is soldered into place, you can breathe a sigh of relief as the worst part is over. Sounds like a demented wasp trying to escape a Coca-Cola can. In my case, I ended up substituting a salvaged from another piece of broken equipment … but this is why having two kits with the intention of making just one might be useful.

Remove the plastic protective film on the front tuning scale, if cd908. Massage it over dataeheet end of the rod, and glue into place optional.

The case for this was soon found — the components are actually wrapped inside a cellophane bag, but that sort of material has a tendency to tear when punctured by the sharp component legs — quickly the smaller components work their way out. I enjoyed a datasheey this kit. Proudly powered by WordPress.

Project: Paeansonic CF210SP CD9088+CD7642 AM/FM Radio Kit

You can remove the self-adhesive backing from the ce9088 window and apply it to the front of the casing, checking the orientation. The schematic as listed is shown above. The AM rod antenna connections can be made by looping out the enamelled wire over the top of the PCB is best and tack soldering the ends to AM terminals. Repeat for the UTC as well.

Next, try to close the case hooking over the headphone out jack first, and then clipping in the tuning dial side. Sound quality is good. Trouble was already spotted when a loose screw was seen rattling inside the bubble wrap — the components have broken loose and the only thing preventing them from going everywhere was a thin and somewhat torn bubble wrap.

CD Datasheet – 1-Chip FM Electrical Tuner IC

Getting to this stage takes about an hour. Note the orientation, unbend the pins, insert and solder away. Part of the cause seems to be the jack itself being slightly larger datasjeet the hole in the rear plastic cover — reaming out the hole slightly using a large Philips head screwdriver seems to do the trick. April 25, at The next step was to mount the hardware — the headphone jack, the variable capacitor, the volume switch and the band switch.


CD Datasheet, PDF – Alldatasheet

The other comment about using solder paste and running the tip along the pins is one i agree with also, even if some clean up datashest required afterwards. My board looks like this — ready for the population of resistors. After all, it shows just how numbers and drawings can easily transcend the language barrier.

Repeat for finding a known station, but instead adjust the left brass screw — the higher one. November 24, at 8: I actually tried this on my second kit and it was a disaster. I did have problems with the jack but left it misaligned. Preparation We start by first emptying all components into a plastic bowl so they can be sorted through. Once roughly in place, you can take the AM-FM mode switch, deburr the plastic and push it through the exterior casing over the switch. Another radio that is in tune to verify received stations also recommended, but not absolutely necessary.

I must have used the wrong screw for the antenna as it became loose and I ended up replacing it with a self tap cd0988 slightly larger size. Superglue is not preferable because it cracks when the case is flexed, but should still work somewhat adequately. Of interest is that the reception mode switch cd9808 switches the audio path to the amplifier.

Magnifying glass and light to read small component values and markings also optional. Two AA batteries to power the receiver. March 23, at