Milennia PRV21 User manual

Milennia PRV21 Troubleshooting Guide
Prospec Electronics of South Carolina, Inc.
1.0. Wiring
2.0. Compatible Accessories
3.0. List of common issues
3.1. No power
3.2. Intermittent Power
3.3. Buttons/controls not responding
3.4. Wireless Remote not Working
3.5. USB issues
3.6. Poor reception or no reception
3.7. No audio, speaker audio is unevenly distributed or some speakers not working
3.8. Low audio
3.9. Fluctuating audio
3.10. Moisture in display
4.0. Bluetooth Connections
4.1. Common Devices and Connections
4.2. Playing Bluetooth Music
4.3. Common Bluetooth Issues
5.0. Reset Procedure

1.0. Wiring Follow the wiring diagram below.
•The red ACC wire is designed as the trigger to turn the radio on. It recommended that this wire is connected to an
on/off switch for purposes of lowering the current draw on the battery while the radio is not in use.
•Both red ACC and yellow battery wires must be connected to 12V+ for the radio to turn on.
•Ground (black) must be connected to a good 12V- source. Best source is directly to the battery.
•Speaker wires must be installed to the individual speaker’s terminals as labeled, positive and negative, respectively.
Do NOT combine any speaker wires as this will cause permanent damage to the radio’s output IC. Tape off any unused
speaker wires individually to prevent accidental shorting which can also harm the output IC.
•Antenna must be installed.
•USB extension is supplied with radio.
•AUX Input 1 and AUX Input 2 –two separate inputs for two separate external devices. Connectors shown in
diagram are female RCA connectors.
•Remote lead –female 3.5mm jack for wired remote or wireless remote adapter.

2.0. Compatible Accessories See our website for the following add on accessories:
•SEAMINI2 –AUX input extension with protective outlet housing
•SEAUSBMINI –AUX input and USB input extension with protective housing
•MIL-IDOCK –multimedia device protective storage drawer
•MIL-RF9-21 –RF remote with compatible adapter (except PO H06804912 which does not have the connection)
•MIL-plate1
•Any Antenna
•MIL-MA-100 (high pass wiring only)
3.0. List of common issues
3.1 No Power
•Check each button on the control pad for sticking. Under normal conditions, a faint click is heard upon pressing
each button. If any button does not click, initiate a warranty claim.
•Ensure red and yellow leads are connected to a good 12V+ source. Both must have power for the radio to turn on.
•Ensure black ground wire is connected to a good reliable ground source.
•Open the fuse holder and check the fuses. Note, while in most situations, a bad fuse can be spotted visually, this
may not always be the case. The best method would be to use a multi-meter or a test light.
•While the fuse holders are open, inspect the fuse holder terminals to ensure they have spring tension and they are
not stuck down inside the fuse holder(s). Also inspect the fuses and terminals for rust and corrosion. See below picture
•Ensure the battery/power supply is putting out at least 12V while under load. The radio requires at least 11V to
operate normally.
•Check all connections for corrosion, looseness, or other condition that can produce a bad ground. Corrosion or
terminal looseness is the leading cause for most grounding issues and can cause excessive heat resulting in melting wires or
terminals.
•If possible, connect the radio power directly to a 12V system, bypassing any toggle switches. If radio
works connected directly to power, the problem might be with the toggle switch.
•If the above doesn’t help, initiate a warranty claim if you are within warranty.

3.2 Intermittent Power
3.2.1 Powers on and off constantly
•Check voltage under load. At least 11V must be maintained consistently to operate the radio normally.
•If voltage cannot be maintained, load test the battery or power supply.
•Check all connections for corrosion, looseness, or other condition that can produce a bad ground.
•Check wire harness by wiggling the wire harness on the radio and the vehicle side. If the whole pin comes
out, bend the holders on the pin so that the pin will stay in the plug (see below image). If the wire comes out of
the pin, initiate a warranty claim so we can re-pin the radio.
3.2.2 Powers off and on while vehicle is moving
• Inspect all connections including the radio’s harness for looseness. Wriggle connections while the radio is
operating to produce the symptom and narrow down the loose connection.
3.3 Buttons/controls not responding
•Press each button to ensure a click is heard signifying the button is mechanically operational. If one or more
buttons do not click, initiate a warranty claim.
•Reset the microprocessor - disengage the radio from power for at least 3 seconds, then reconnect. Both red ACC
and yellow Memory wires must be disengaged to facilitate a reset of the microprocessor. If both ACC and Memory wires
are connected to a main breaker or cut-off switch/ignition switch, any of these methods can be used in lieu of physically
disconnecting the wires.
3.4 Wireless Remotes not Working
If your radio has PO H06804912, then you do not have remote capability
Make sure the MIL-RF9-21 remote package is connected to the PRV-21. If it is not, the RX21 remote adapter is
needed.
3.4.1 Remote will not light up
The MIL-RF9 has a thin plastic film under the battery that protects the battery from being drained during storage
and shipping. Remove this film and try the remote again.
Replace the battery in the MIL-RF9
Initiate a warranty claim for the remote here if you are under warranty
3.4.2 Remote Controls Wrong Functions
Check the PO number on the back of the radio. If the PO is H05022014, then an adapter will fix this problem.
Contact Customer Support here

3.5 USB issues
3.5.1 iPod/iPhone not charging or playing –these devises are not supported. To play iPod/iPhone, use the
headphone jack and connect to the AUX inputs of the PRV-21. Recommended additional purchases are the
SEAMIN2 or SEAUSBMINI.
3.5.2 MP3 player is not charging or playing –not all mp3 players will play via USB. The difference is in the
software of the mp3 player.
3.5.3 Flash Drive/ Thumb drive not playing
3.5.3.1 Only MP3 or Windows Media files are supported. These files can be recognized by viewing their file
extension on a computer; i.e., the file “My Favorite Song” will be followed by a “.” and the extension “mp3”
or “wma”. Some computer operating systems have extension view disabled. The feature can usually be
enabled in the computer’s folder properties.
3.5.3.2 iTunes music files will not play as these are not in mp3 format. Software converters can be purchased to
convert these files as others to mp3 format. Do not exceed a bit rate of 128 Kbps when converting.
3.5.3.3 Only drives formatted to FAT are supported. Most flash drives come this way standard.
3.5.3.4 Some flash drives com preloaded with proprietary software or other media organizational software that
will prevent the PRV21 from reading the contents. Best practice is to completely format the drive to erase
all contents before loading music files.
3.5.3.5 Supported formats must not exceed a bit rate of 128 Kbps.
3.5.3.6 Check USB outlet for corrosion or rust.
3.6 Poor or no Reception
3.6.1 For an amplified antenna
•Ensure the antenna is connected to power and ground according to manufacturer’s instructions.
•The antenna wire should never be coiled or wound up.
•Check proximity of radio, speakers and antenna to gages, GPS equipment, depth finders, LED lighting, or any other
source of Radio Frequency Interference (RFI) and Electronic Magnetic Interference (EMI).
3.6.2 For all other Antennas
Inspect the antenna for torn wires
The antenna wire should never be coiled or wound up
Check proximity of radio, speakers and antenna to gages, GPS equipment, depth finders, LED lighting, or any other
source of Radio Frequency Interference (RFI) and Electronic Magnetic Interference (EMI).
3.6.3 LED lighting causes low FM/AM audio or poor reception
•Never bundle the power source wires of the LED lighting to the power wires of the radio.
•If needed, the LED power wires and radio power wires should intersect at a 90 degree angle.
•The radio’s antenna must be as far away from the LED lights and power source as possible.
•The radio’s speakers also must be as far away from the LED lights as possible.
•If all fails, upgrade the LED lighting to a brand that is guaranteed not to emit RF or EMI.

3.7 No audio, speaker audio is unevenly distributed or some speakers not working
•Check Balance settings. To access and adjust these settings, press the SEL button to access the system settings.
Quickly press the SEL button again and again until the desired setting is displayed. Use the volume buttons to adjust. Center
the fade and balance adjustments between front/rear and left/right.
•Check speaker connections. Ensure each speaker wire is routed to the appropriate speaker terminal for which it is
intended.
•Inspect all speaker wires for exposed wire and tape up as necessary. Make sure they cannot ground to one another
or make contact with any other potential power source or ground. NEVER combine speaker wires.
•If some speakers are working but others are not and the above methods do not help, swap the known working
speakers with the ones that are not working. This will help determine any defective speakers.
•If no audio and the above methods yield nothing, initiate a warranty claim.
3.8 Low Audio
•Check speaker specifications –recommended impedance is 4ohm
•Check sound enhancements - To access and adjust these settings, press the SEL button. Quickly press the SEL
button again and again until the desired setting is displayed. Use the volume buttons to adjust or turn on/off.
•LED lighting can cause low FM/AM audio –see section 3.6.3
3.9 Fluctuating audio or FM signal - Audio level constantly raises and lowers when the engine is started or revved. This
issue is more frequently caused by power fluctuations than radio failure.
•Check to ensure ground is good and no corrosion exists at connection points.
•Check all power wires for corrosion at connection points.
•Check for corrosion at battery terminals, bus terminals, and fuse panel.
•If in a boat or another motor vehicle, ensure the recommended plugs are being used the engine. Resistor plugs can
often block unwanted RF signal that can interfere with radio reception.
•LED lighting can cause fluctuating FM/AM audio –see section 3.6.3
BREAKABLE
3.10 Moisture in Display
3.10.1 Water inside display after washing the mounting area
Radio is not designed to withstand pressurized streams of water. When rinsing the radio or around the radio, a very
low pressure spay is recommended.
Monitor the display for possible evaporation without harm to the radio.
Monitor the radio for strange or erratic behavior. If the issue persists, internal damage has occurred- seek to repair
or replace.
3.10.2 Slight fog after operation –normal in colder weather but monitor
3.10.3 Heavy condensation
•The condensation may evaporate without harm to the radio.
•Monitor the radio for strange or erratic behavior. If the issue persists, internal damage has occurred –seek to
repair or replace.

4.0 Bluetooth Connections
4.1 Common Devices and Connections
Bluetooth Connections -Smartphones must be an A2DP enabled device in order to stream audio and Bluetooth 2.0 or
newer.
4.1.1 iPod/iPhone Pairing Instructions
•Switch PRV-21 to Bluetooth mode.
•Go to settings on the iPod/iPhone and make sure Bluetooth is on.
•Go to Bluetooth settings on the iPod/iPhone; the iPod/iPhone should start scanning for Bluetooth devices.
•On the PRV-21, press and hold the MOD button until “BT PAIR” displays.
•PRV-21 should show in the device list on the phone.
•If PRV-21 does not show in the list of devices when the iPod/phone is done scanning, press and hold the MOD
button on the PRV-21 again until “BT PAIR” displays. Immediately after this step, rescan for Bluetooth devices on the
iPod/phone.
•Once PRV-21 shows up on the phone, select it and the iPod/phone will automatically connect.
4.1.2 Android phones Pairing Instructions - Most android phones will work with the PRV‐21 however you may
have an exception if the customer has an outdated Android phone. Mostly phones older than three years.
•Switch PRV-21 to Bluetooth mode
•Go to settings on the Phone and make sure Bluetooth is on.
•With the phone, go to Bluetooth settings and scan for new devices.
•While the phone is scanning devices, press and hold MOD on the PRV-21 until “BT PAIR” displays.
•Wait for the phone to add the PRV-21 to the list of Bluetooth devices.
•Select the PRV-21 on the phone’s list of devices and the connection should complete automatically.
•When the connection is complete and ready, the phone will display “Connected to media and audio”. Varies from
device to device.
4.1.3 Blackberry Pairing Instructions
4.1.3.1 Pairing
•Switch PRV-21 to Bluetooth mode
•On the phone, turn on Bluetooth and go to Bluetooth settings.
•Select “Add new device”.
•On the PRV-21, press and hold the MOD button until “BT PAIR” displays on the LCD.
•Once the phone has found the PRV-21, select it and pairing will complete automatically.
4.2 Playing Bluetooth Music
4.2.1 After the connection is complete, the user may have to initiate play mode either via the phone/iPod or via the
play/paus button on the PRV-21.
4.2.2 The User will have control over the music library from both the PRV-21 as well as the phone; however,
changing of playlists or other search options will have to be done via the phone/iPod.
4.3 Common Bluetooth Issues
4.3.1 iPod, phone, cannot find the PRV-21 –The PRV-21 must be in pairing mode when scanning devices on the
iPod/phone.
4.3.2 Music fades in and out while playing –
4.3.2.1 Bluetooth reception can be impaired by certain types of objects when disrupt line of site. Some of these
objects include metal, concrete, and the human body.
4.3.2.2 The Bluetooth line of site range for the PRV-21 is approximately 20 feet.
4.3.3 The PRV-21 plays only one track or the same set of tracks repeatedly –A playlist, artist, album, or other search is
selected on the phone/iPod. This will limit playing to the tracks selected within the search parameter. The PRV-
21 cannot change this selection; this selection must be changed via the phone/iPod.

5.0 Reset Procedure
With the radio plugged in and powered off, press preset 4, 3, 1, 2 in that order. The radio will then display “RESET”and
power off.