Can't set clock on pioneer deh-p520

Mosfet 50wx4 indicates a feature of the Pioneer car radio. It isn't a model number. One Pioneer car radio/CD player with this feature is the DEH-1500. On this model, you need to turn off the unit to set the clock. Press and hold the Source button (to the left of the preset tuning buttons) until the device turns off. Press Audio (upper right corner) repeatedly until the clock appears in the display. Use the arrow keys (Skip/Back or Left/Right) on the right hand side of the radio to select a segment of the time to adjust. Use the Up/Down arrows to set the current time. Repeat choosing the time segment and adjusting the time until both the hour and minutes are correct. Press Band or press and hold the Audio button to exit the clock setting mode.

ManualsLib has the manual for the Pioneer DEH-1500 here: https://www.manualslib.com/products/Pioneer-Deh-1500-Car-Cd-Player-Mosfet-50wx4-Super-Tuner-3-Am-Fm-Radio-3432555.html . See page 16 for the clock setting procedure: https://www.manualslib.com/manual/129844/Pioneer-Deh-1500.html?page=16#manual . See page 6 for the picture of the front-panel buttons for the DEH-1500.

I hope this helps. Please add a comment with the model of the car radio if the above procedure doesn't work for your unit.

Cindy Wells

1. • Turn the stereo off by pressing the "source" button on the bottom left corner of the stereo's face. Press the "function" button, the lower of the two buttons to the right of the stereo display, until the clock appears on the display. Press the arrow keys at the far right of the stereo's face to adjust the time. Use the left or right arrows to toggle between hours and minutes. Use the up and down arrow to increase or decrease the hour or minute numbers. Press the "function" button once you have set the display clock to the correct time.
     

Source- http://www.ehow.com/how_6881633_do-pioneer-deh_p6600-cd-player_.html

Press FUNCTION to select the time.

Press FUNCTION until the time appears in the

display.

2 Select the portion of the time display you

wish to set with 2/3.

Pressing 2/3 will select a portion of the clock

display:

HOUR-MINUTE

As you select portions of the clock display the

portion selected will blink.

3 Select the correct time with 5/?.

Pressing 5 will increase the selected hour or

minute. Pressing ? will decrease the selected
hour or minute.

http://www.generalmanual.com/Players/Pioneer-DEH-P4400-Single-CD-Player.htm

http://www.generalmanual.com/Players/Pioneer-DEH-P4400-Single-CD-Player.htm

Press FUNCTION to select the time.

Press FUNCTION until the time appears in the

display.

2 Select the portion of the time display you

wish to set with 2/3.

Pressing 2/3 will select a portion of the clock

display:

HOUR-MINUTE

As you select portions of the clock display the

portion selected will blink.

3 Select the correct time with 5/∞.

Pressing 5 will increase the selected hour or

minute. Pressing ∞ will decrease the selected
hour or minute.

1. Press SRC/OFF and hold until the unit turns off.
2. Press M.C. and hold until CLOCK SET appears in the display.
3. Turn M.C. to select the inital setting.
After selecting, perform the following procedures to set the intial setting.
CLOCK SET:
1. Press M.C. to display the setting mode.
2. Press M.C. to select the segment of the clock display you wish to set.
Hour-Minute
As you select segments of the clock display, the selected segment flashes.
3. Turn M.C. to adjust the clock.

here is the link for your manual:
http://www.pioneer.co.uk/uk/support/manuals/DEH-4000UB/index.html

Setting the clock
This function is available only for DEH-4000UB.
Use these instructions to set the clock.
1 Use MULTI-CONTROL to select
CLOCK SET.
2 Press MULTI-CONTROL to display the
setting mode.
# Press BACK to return to the previous display.
3 Press MULTI-CONTROL to select the segment
of the clock display you wish to set.
Each time you press MULTI-CONTROL, one
segment of the clock display is selected.
Hour—Minute
As you select segments of the clock display,
the selected segment blinks.
4 Turn MULTI-CONTROL to put a clock
right.
# You can also perform the same operations by
pushing MULTI-CONTROL up or down.
Turning the off clock
display on or off
This function is available only for DEH-4000UB.
If the off clock display is turned on, the clock
appears on the display when the sources are
off.
1 Use MULTI-CONTROL to select
OFF CLOCK.
2 Press MULTI-CONTROL to turn the off
clock display on.
# To turn the off clock display

Cheers!

Adjusting initial settings
1 Press SRC/OFF and hold until the unit
turns off.
2 Press MULTI-CONTROL and hold until
CLOCK SET appears in the display.
3 Turn MULTI-CONTROL to select one of
the initial settings.
CLOCK SET (clock)—AUX (auxiliary input)
# To return to the previous display, press
DISP/BACK/SCRL.
# To return to the main menu, press and hold
DISP/BACK/SCRL.
# To cancel initial settings, press BAND/ESC.
Setting the clock
Use these instructions to set the clock.
1 Use MULTI-CONTROL to select
CLOCK SET in the initial setting menu.
Refer to Adjusting initial settings on this page.
2 Press MULTI-CONTROL to display the
setting mode.
3 Press MULTI-CONTROL to select the segment
of the clock display you wish to set.
Each time you press MULTI-CONTROL, one
segment of the clock display is selected.
Hour—Minute
As you select segments of the clock display,
the selected segment blinks.
4 Turn MULTI-CONTROL to put a clock
right.

Here's a link to the manual Pioneer's web site.

Here's how you set the time (from page 16 in the manual):

1: press SOURCE and hold until the unit turns off.
2: Press AUDIO repeatedly until the clock appears in the display
3: Press (left arrow) or (right arrow) to select the segment of the clock display you wish to set (hours, minutes)
4: Press (up arrow) or (down arrow) to set the clock.

- To cancel clock settings, press BAND
- to save clock settings press AUDIO until the display stops blinking

Found a posting on another site from 2005, and it worked!
Turn on the radio. Press and hold the "Source" button until the radio goes off. Press and hold the "Audio" button until the numbers flash. Use cursor/arrow buttons to adjust the time. Press and hold the "Audio" button to exit.

Here is the link to the DEH-P3900 website page (sorry is the closest i could find, but changing the clock is the same); http://www.pioneerelectronics.com/pna/v3/pg/support/details/0,,2076_310070337_337273636,00.html You can download the manual from there - you have to register, but it's free. if you want a quick way, pioneer says: "SETTING THE CLOCK How do I set the clock on my single CD player? For most Pioneer single CD players, you can set the clock using the following steps: Press and hold the SOURCE button until the unit turns off. Press SOURCE and hold again until the clock appears in the display. Press the left or right arrows to select the segment of the clock display you wish to set. (As you select the segments of the clock display the segment will blink.) Press the up or down arrows to either increase or decrease the numbers in the blinking segment. Once the clock is set correctly, press the SOURCE button to exit." Hope this helps - please post again if not :)