CD9088 DATASHEET PDF

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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Repeat for the UTC as well. Do the soldering with the antenna on the benchso not to melt the casing, and ensure adequate heat. Attach the clips to the power supply terminals, and power up the radio to a moderate volume. For speaker used twisted pair. Next, obtain the larger tuning dial and align the indentation. 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.

November 24, at 8: A flat bladed screwdriver helps.

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

Check the orientation of the plastic holder and the PCB slot, and glue it into place so it holds the ferrite rod parallel to the PCB. Continuing on, the board is completed with the population of resistors. That leaves the TDAwhich is a stereo audio amplifier chip to drive speakers and headphones. The next step was to mount the hardware — the headphone jack, the variable capacitor, the volume switch and the band switch.

The datashewt 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. 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.

The FM antenna also needs to have a wire connected to it. November 10, at 3: Rather nicely, the PCB is a single sided paper-type board with silkscreening on both sides which is very descriptive, and solder mask on the rear.

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After enjoying repairing a few AM radio kits, I embarked on a challenge to build a cheap Chinese dual-band radio kit. My board looks like this — ready for the population of resistors.

(PDF) Cd9088 Datasheet download

April 25, at Part of the cause seems to be the jack itself being slightly larger than the hole in the rear plastic cover — reaming out the hole slightly using a large Philips head screwdriver seems to do the trick. Start by identifying pin 1 and straightening bent pins.

Insert the ferrite rod into the end to check the fit, then glue to the rod into the holder. Massage it over the end of the rod, and glue into place optional. 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. I actually tried this on my second kit and it was a disaster.

First, obtain the smaller volume dial and check the indentation for the rectangular brass stud of the switch. This entry was posted in AudioElectronicsRadio and tagged cheapdiyebayelectronicsmade-in-chinaprojectradiorf.

Note the orientation, unbend the pins, insert and solder away. Proudly powered by WordPress. Insert your two AA batteries of choice, and you can start listening to radio right away. Magnifying glass and light to read small component values and markings also optional.

September 12, at 3: You can remove the self-adhesive backing from the front window and apply it to the front of the casing, checking the orientation. March 23, at cv9088 The AM reception is as per most TRF receivers — not particularly high quality and it seems that this is prone to overload.

CD , Tube CD; Röhre CD ID, IC – Integrated

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. In fact, the case even has a few curves to make it look just that little bit more stylish.

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There is also a jumper wire marked with a J — this can be made with a scrap electrolytic capacitor leg.

The unit has an IF of about 70kHz, and features a frequency locked loop with internal muting of weak signals. The schematic as listed is shown datashfet. This goes in one direction at the end of the battery compartment and needs to be slid into place in its rails.

The reamed hole first the jack a lot better. Get good reception aroun Mhz with correct pointer position. As mentioned, the instructions were all in Chinese. It is used to drive the headphone jack which disconnects the internal speaker once a headphone plug is plugged in.

In my case, I ended dayasheet 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.

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.

February 5, at 5: Next, try to close the case hooking over the headphone out jack first, and then clipping in the tuning dial side. A capacitor is hence a 10 pF capacitor, or 0. For this, stick the wire through the slot in the rear of the casing, and the screw hole end of the antenna through the slot.

Ordering two ensures that you have some spares in case things do go wrong … This post will be a little review of the kit, along with tips and hints especially for English speaking constructors. The final connection is the FM antenna connection.

As an experienced kit builder, I wasted no time in getting started. Ordering two ensures that you have some spares in case things do go wrong ….