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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Sidecutters to cut off component legs. Filtering is achieved with the external components — mainly R-C filters. I wonder if adding some holes in the back of the case would help.
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.
(PDF) Cd9088 Datasheet download
Superglue is not preferable because it cracks when the case is flexed, but should still work somewhat adequately. Samples of the audio as recorded by my Zoom H1 recorder are here. The educational value, however, is a little limited without explanations.
Attach the clips to the power supply terminals, and power up the radio to a moderate volume. Assembling the AM antenna takes a little bit of work as well.
The AM reception is being achieved with the CD Hot melt glue, or superglue to stick the speaker, ferrite rod antennas into place. Take care with the ceramic disc capacitors not to lose them as some are extremely small. After all, it shows just how numbers and drawings can easily transcend the language barrier.
The unit has an IF of about 70kHz, and features a frequency locked loop with internal muting of weak signals. 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.
Do the soldering with the antenna on the benchso not to melt the casing, and ensure adequate heat. I enjoyed a lot this kit. The values can either be read or checked with a meter. Then you can solder the remaining pins and come back to resolder the edge pins.
CD , Tube CD; Röhre CD ID, IC – Integrated
I was aware of the Tecsun 2P3 which looks to be a very nice kit, but a bit on the pricey side for an AM only radio. By now, most of the remaining components are resistors or daasheet.
Turn the tuning dial to a known station location, and if you have a second radio, have it playing the same station. On one of the two samples, it can occasionally during a signal dip end up getting pulled into an adjacent station over time.
Next, obtain the larger tuning dial and align the indentation.
Once it is soldered, the speaker can be glued into the front casing with hot melt glue around the edge or superglue if unavailable. Trouble was already spotted when a loose screw was seen rattling inside the bubble wrap — the datsaheet have broken loose and the only thing preventing them from going everywhere was datashheet thin and somewhat torn bubble wrap. The best rule of thumb when assembling circuit boards is to start with the lowest height components and progress to the tallest ones.
Project: Paeansonic CFSP CD+CD AM/FM Radio Kit | Gough’s Tech Zone
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. Turn the tuning dial to the lowest frequency longest indicator length and carefully thread the tip of the tongue through the slot while shifting the PCB into place.
Just another way engineering solves the day! Rather unimpressively, each kit comes in a bubble wrap package. This post will be a little review of the kit, along with tips and hints especially for English speaking constructors. Instead, you will have to solder the yellow wire to the arm next to the screw hole, making sure the solder is low profile not to interfere with fitting the antenna through the slot. Medium sized flat-blade screwdriver to push the spring terminals into the casing.
The AM reception is as per most TRF receivers — not particularly high quality and it seems that this is prone to overload. Remove the plastic protective film on the front tuning scale, if desired. I have also had issues in getting the stations in the right place on the dial.
That way you can flip the board over and solder the leaded parts without them sliding down to the table.
CD9088CB Даташит — Monolithic Power FM radio tuner
Desoldering braid optional to fix mistakes. Lead the yellow wire to the ANT terminal and tack solder. At this stage, I decided to mount the electrolytic capacitors, since there were only a few of them and their values are easy to read.