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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In my case, I ended up substituting a salvaged from another piece of broken equipment … datsheet this is why having two kits with the intention of making just one might be useful.

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

First, obtain the smaller volume dial and check the indentation for the rectangular brass stud of the switch. Well, it took 2 months for my kit to arrive, the PCB was bowed, and catasheet of the caps were illegible, but it worked on the first try.

Next, obtain the larger tuning dial and align the indentation. This might be the case especially near the headphone jack. 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. It is used to drive the headphone jack which disconnects the internal speaker once a headphone plug is plugged in. The AM rod antenna datasheeh 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.

Use the cv9088 different machine screw to secure the antenna to the rear casing.

As mentioned, the instructions were all in Chinese. Once it is soldered, the speaker can be glued into the front casing with hot melt glue around the edge or superglue if unavailable. On one of the two samples, it can dayasheet during a signal dip end up getting pulled into an adjacent station over time.


You might get static, or nothing. Keep the terminals loose on your bench and solder a red wire to the positive and black wire to the datasneet.

CDCB Даташит – Monolithic Power FM radio tuner – Datasheetcom

Datashet way you can flip the board over and solder the leaded parts without them sliding down to the table. Once that is dialled in, the unit has been tuned and the radio should now be somewhat functional. Take care with the ceramic disc capacitors not to lose them as some are extremely small. The FM antenna also needs to have a wire connected to it. Desoldering braid optional to fix mistakes. About one to two hours of time to complete the kit. Turn the tuning dial to a known station location, and if you have a second radio, have it playing the same station.

CD Datasheet – 1-Chip FM Electrical Tuner IC

I wonder if adding some holes in the back of the case would help. March 23, at Repeat for finding a known station, but instead adjust the left brass screw — the higher one. January 25, at 1: April 25, at Do not fit them into the casing until they are cool, otherwise you will melt the plastic casing!

The kit itself is not entirely trouble-free, and you do need to be suitably equipped to build it. Another radio that is in tune to verify received stations also recommended, but not absolutely necessary.

The radio is out of tune! From here, we can mount the two copper air-coiled inductors. First, slide the battery terminals into place — positive is the top terminal on the front case, negative is the lower terminal. June 15, at For speaker used twisted pair. I found the top of the FM band hard to reach, but not impossible with a combination of spreading the coils and adjusting the offset trim on the variable capacitor itself.

Unfortunately, the instructions are only a single double-sided sheet, so the educational value of the kit is somewhat limited.

As a result, I accepted the challenge and put in an order for two kits. Get good reception aroun Mhz with correct pointer position. After that, actually getting any practical usage out of it would be pretty much a bonus. It seems to have a lacquer finish to stop the pads from oxidising, but is not otherwise tinned nor plated. In the case of this kit, this specifically includes: November 10, at 3: The plastic casing is dxtasheet, slightly weak to flexing and has a tendency to resonate at certain frequencies causing a buzzing sound at higher volumes.


To adjust the FM alignment, you need to use a flat blade c9d088 and adjust the right brass screw on the rear of the variable capacitor i.

Next, solder the speaker wires with both yellow wires going to one SP terminal respectively. Dataasheet flat bladed screwdriver helps.

Then you can solder the remaining pins and come back to resolder the edge pins. Attach the clips to the power supply terminals, and power up the radio to a moderate volume. There is also a jumper wire marked with a J — this can be made with a scrap electrolytic capacitor leg. Datasneet its a cute little radio for the price and works quite well with local stations both fm and am in the Winnipeg area.

The reamed hole ce9088 the jack a lot better.

CD9088CB Даташит — Monolithic Power FM radio tuner

The paper substrate also likes to discolour with such heating and smoke. 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. The best rule of thumb when assembling circuit boards is to start with the lowest height components and progress to the tallest ones. However, you might encounter some critical issues here. Rather unimpressively, each kit comes in a bubble wrap package.

Massage it over the end of the rod, and glue into place optional.