Prospec Electronics JBL PRV175 Troubleshooting Manual
Text of the manual
JBL PRV175 Troubleshooting Guide
Prospec Electronics
Note: Please click underlined words for links to particular parts in this document and our website.
1
Wiring
2
Compatible Accessories
3
List of common issues
3.1. No power
3.2. Intermittent Power
3.3. Buttons/controls not responding
3.4. USB issues
3.5. Poor reception or no reception
3.6. No audio, speaker
1.0. Wiring Follow the wiring diagram above
•
The red wire is the power wire. 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.
•
Red ACC wire must be connected to 12V+ for the radio to turn on.
•
Note: the PRV175 has EPROM, which means the radio loses
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 har
3.5 Poor or no Reception
3.5.1 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 Interf
3.9 Moisture in Display
3.9.1 Water seen 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 spray is recommended.
Monitor the display for possible evaporation without harm to the radio.
Monitor the radio for strange or erratic
