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Re: FM Frequency Steps
Appreciate the "Ask Me" and my compliments on the choice of an Onkyo TX-SR605.
Onkyos are not very common in my country. Often, they are imported from the US and since we follow US broadcasting standards, there would be no need for modifications particularly with the tuning steps.
To my knowledge, most manufacturers would be coming up with a single model but with:
variations of the firmware to suit the region/country of intended use; or
a service menu where the country/region of intended use is selectable; or
jumpers/bridges in the logic circuitry.
Simply, this is similar to having the unit with a voltage selector at the back for 120, 220 and 240 or an auto volt 100~240.
As to your concern, pls check:
if there is such a feature in the menu to change regional settings (the user manual may have this information);
firmware update, but rather than select US, pls select one appropriate for India;
a service manual where the logic circuitry would be shown and if there are movable jumpers/bridges for the selection of intended region/country (warranty may be void).
Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.
Good luck and kind regards. Thank you for using FixYa.
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The DEH-P7900BT is almost identical to the DEH-P85BT sold in Europe.
is a US model and will tune most AM/FM stations in the UK/Europe. The
FM broadcast band is 87.8 to 108.0 MHz. so it will not pick up any FM
stations outside this range. Also, the tuning is in odd increments
(such as 96.1, 96.3, 96.5, etc.) so some stations with even frequencies
will be slightly distorted, depending on the power of the signal the
I found this bit of info for you but ill keep looking and let you know what i find out. Also have you tried it in europe to see if it does work or not let me know ok
Your post/description "the frequency increases in steps of .2 Mhz or 200Khz" refers to the increment of frequency spacing between tuning steps and is largely dependent on the radio standards of the country/region the radio is intended to be used. Assuming no hardware fault to the radio, tuning steps may be adjusted by:
1. With the radio switched off, press the Step/Band button for about 2 seconds. This will display the current FM tuning step (200Khz as in your case);
2. With the radio switched off, press the Step/Band button for about 10 seconds. This will display FM and a blinking 50Khz with a single beep sound. By rotating the Tuning Control you can increase or decrease this value.
3. pressing the Step/Band button again will move you to the tuning increments of the AM band again adjustable via the Tuning Control.
4. pressing the Step/Band button again will save the setting and complete the process.
Hope this be of some help.
Good luck and kind regards.
Skipping all the technical stuff, each FM broadcast channel is 0.2 MHz wide and starts on an even number. The lowest channel for example is, 87.8MHz - 88.0MHz. Radios will tune to the center channel, ie 87.9 MHz. Any FM station in the United States is always an odd number, therefore radios in the US will never tune to an even number
Some radios have the option to adjust sensibility when scanning the frequency, check in your owners manual if your radio have that option. If you can't find that there or if you don't have it let me know about the brand and model.
This is a USA model and by default in the USA all FM stations end in an Odd number. This is completely normal. you can try holding preset 1 and 5 down while pressing the reset button on the unit and it may allow you to switch to a Europe style of tuning.
Pioneer have factory set your DEH-P690UB to 0.2Mhz steps to match the American FM frequency allocations.
The fix is not casual as it requires complete disassembly of the head unit and repositioning of two surface mount resistors.
This will void any warrantee and unless you're good at microscopic soldering could also ruin the set.
I did however void my 2 year warrantee yesterday partly out of frustration and because I have the right SMT tools at work.
Now my tuner CPU thinks it's in the Austrailian/Asian model DEH-P7950UB and is also compatible with UK stations.
A previously hidden menu is also available where I can set either 0.1 or 0.05Mhz stepping for FM and 9 or 10KHz for AM BSM scanning.
The rotary control now steps in 0.05's instead of odd 0.2's on FM
Hope this helps.